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Comparing libev/ev.c (file contents):
Revision 1.271 by root, Mon Nov 3 12:13:15 2008 UTC vs.
Revision 1.338 by root, Tue Mar 16 00:20:17 2010 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
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
… …
96# define EV_USE_EPOLL 0 110# define EV_USE_EPOLL 0
97# endif 111# endif
98# endif 112# endif
99 113
100# ifndef EV_USE_KQUEUE 114# ifndef EV_USE_KQUEUE
101# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
102# define EV_USE_KQUEUE 1 116# define EV_USE_KQUEUE 1
103# else 117# else
104# define EV_USE_KQUEUE 0 118# define EV_USE_KQUEUE 0
105# endif 119# endif
106# endif 120# 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
141#include <assert.h> 164#include <assert.h>
142#include <errno.h> 165#include <errno.h>
143#include <sys/types.h> 166#include <sys/types.h>
144#include <time.h> 167#include <time.h>
168#include <limits.h>
145 169
146#include <signal.h> 170#include <signal.h>
147 171
148#ifdef EV_H 172#ifdef EV_H
149# include EV_H 173# include EV_H
… …
160# define WIN32_LEAN_AND_MEAN 184# define WIN32_LEAN_AND_MEAN
161# include <windows.h> 185# include <windows.h>
162# ifndef EV_SELECT_IS_WINSOCKET 186# ifndef EV_SELECT_IS_WINSOCKET
163# define EV_SELECT_IS_WINSOCKET 1 187# define EV_SELECT_IS_WINSOCKET 1
164# endif 188# endif
189# undef EV_AVOID_STDIO
165#endif 190#endif
166 191
167/* this block tries to deduce configuration from header-defined symbols and defaults */ 192/* this block tries to deduce configuration from header-defined symbols and defaults */
193
194/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG)
196/* use what's provided */
197#elif defined (NSIG)
198# define EV_NSIG (NSIG)
199#elif defined(_NSIG)
200# define EV_NSIG (_NSIG)
201#elif defined (SIGMAX)
202# define EV_NSIG (SIGMAX+1)
203#elif defined (SIG_MAX)
204# define EV_NSIG (SIG_MAX+1)
205#elif defined (_SIG_MAX)
206# define EV_NSIG (_SIG_MAX+1)
207#elif defined (MAXSIG)
208# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG)
210# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE)
212# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig)
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else
216# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line, */
218/* but consider reporting it, too! :) */
219# define EV_NSIG 65
220#endif
221
222#ifndef EV_USE_CLOCK_SYSCALL
223# if __linux && __GLIBC__ >= 2
224# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
225# else
226# define EV_USE_CLOCK_SYSCALL 0
227# endif
228#endif
168 229
169#ifndef EV_USE_MONOTONIC 230#ifndef EV_USE_MONOTONIC
170# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 231# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
171# define EV_USE_MONOTONIC 1 232# define EV_USE_MONOTONIC EV_FEATURE_OS
172# else 233# else
173# define EV_USE_MONOTONIC 0 234# define EV_USE_MONOTONIC 0
174# endif 235# endif
175#endif 236#endif
176 237
177#ifndef EV_USE_REALTIME 238#ifndef EV_USE_REALTIME
178# define EV_USE_REALTIME 0 239# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
179#endif 240#endif
180 241
181#ifndef EV_USE_NANOSLEEP 242#ifndef EV_USE_NANOSLEEP
182# if _POSIX_C_SOURCE >= 199309L 243# if _POSIX_C_SOURCE >= 199309L
183# define EV_USE_NANOSLEEP 1 244# define EV_USE_NANOSLEEP EV_FEATURE_OS
184# else 245# else
185# define EV_USE_NANOSLEEP 0 246# define EV_USE_NANOSLEEP 0
186# endif 247# endif
187#endif 248#endif
188 249
189#ifndef EV_USE_SELECT 250#ifndef EV_USE_SELECT
190# define EV_USE_SELECT 1 251# define EV_USE_SELECT EV_FEATURE_BACKENDS
191#endif 252#endif
192 253
193#ifndef EV_USE_POLL 254#ifndef EV_USE_POLL
194# ifdef _WIN32 255# ifdef _WIN32
195# define EV_USE_POLL 0 256# define EV_USE_POLL 0
196# else 257# else
197# define EV_USE_POLL 1 258# define EV_USE_POLL EV_FEATURE_BACKENDS
198# endif 259# endif
199#endif 260#endif
200 261
201#ifndef EV_USE_EPOLL 262#ifndef EV_USE_EPOLL
202# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 263# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
203# define EV_USE_EPOLL 1 264# define EV_USE_EPOLL EV_FEATURE_BACKENDS
204# else 265# else
205# define EV_USE_EPOLL 0 266# define EV_USE_EPOLL 0
206# endif 267# endif
207#endif 268#endif
208 269
… …
214# define EV_USE_PORT 0 275# define EV_USE_PORT 0
215#endif 276#endif
216 277
217#ifndef EV_USE_INOTIFY 278#ifndef EV_USE_INOTIFY
218# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 279# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
219# define EV_USE_INOTIFY 1 280# define EV_USE_INOTIFY EV_FEATURE_OS
220# else 281# else
221# define EV_USE_INOTIFY 0 282# define EV_USE_INOTIFY 0
222# endif 283# endif
223#endif 284#endif
224 285
225#ifndef EV_PID_HASHSIZE 286#ifndef EV_PID_HASHSIZE
226# if EV_MINIMAL 287# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
227# define EV_PID_HASHSIZE 1
228# else
229# define EV_PID_HASHSIZE 16
230# endif
231#endif 288#endif
232 289
233#ifndef EV_INOTIFY_HASHSIZE 290#ifndef EV_INOTIFY_HASHSIZE
234# if EV_MINIMAL 291# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
235# define EV_INOTIFY_HASHSIZE 1
236# else
237# define EV_INOTIFY_HASHSIZE 16
238# endif
239#endif 292#endif
240 293
241#ifndef EV_USE_EVENTFD 294#ifndef EV_USE_EVENTFD
242# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 295# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
243# define EV_USE_EVENTFD 1 296# define EV_USE_EVENTFD EV_FEATURE_OS
244# else 297# else
245# define EV_USE_EVENTFD 0 298# define EV_USE_EVENTFD 0
299# endif
300#endif
301
302#ifndef EV_USE_SIGNALFD
303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
304# define EV_USE_SIGNALFD EV_FEATURE_OS
305# else
306# define EV_USE_SIGNALFD 0
246# endif 307# endif
247#endif 308#endif
248 309
249#if 0 /* debugging */ 310#if 0 /* debugging */
250# define EV_VERIFY 3 311# define EV_VERIFY 3
251# define EV_USE_4HEAP 1 312# define EV_USE_4HEAP 1
252# define EV_HEAP_CACHE_AT 1 313# define EV_HEAP_CACHE_AT 1
253#endif 314#endif
254 315
255#ifndef EV_VERIFY 316#ifndef EV_VERIFY
256# define EV_VERIFY !EV_MINIMAL 317# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
257#endif 318#endif
258 319
259#ifndef EV_USE_4HEAP 320#ifndef EV_USE_4HEAP
260# define EV_USE_4HEAP !EV_MINIMAL 321# define EV_USE_4HEAP EV_FEATURE_DATA
261#endif 322#endif
262 323
263#ifndef EV_HEAP_CACHE_AT 324#ifndef EV_HEAP_CACHE_AT
264# define EV_HEAP_CACHE_AT !EV_MINIMAL 325# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
326#endif
327
328/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
329/* which makes programs even slower. might work on other unices, too. */
330#if EV_USE_CLOCK_SYSCALL
331# include <syscall.h>
332# ifdef SYS_clock_gettime
333# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
334# undef EV_USE_MONOTONIC
335# define EV_USE_MONOTONIC 1
336# else
337# undef EV_USE_CLOCK_SYSCALL
338# define EV_USE_CLOCK_SYSCALL 0
339# endif
265#endif 340#endif
266 341
267/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 342/* this block fixes any misconfiguration where we know we run into trouble otherwise */
343
344#ifdef _AIX
345/* AIX has a completely broken poll.h header */
346# undef EV_USE_POLL
347# define EV_USE_POLL 0
348#endif
268 349
269#ifndef CLOCK_MONOTONIC 350#ifndef CLOCK_MONOTONIC
270# undef EV_USE_MONOTONIC 351# undef EV_USE_MONOTONIC
271# define EV_USE_MONOTONIC 0 352# define EV_USE_MONOTONIC 0
272#endif 353#endif
… …
303#endif 384#endif
304 385
305#if EV_USE_EVENTFD 386#if EV_USE_EVENTFD
306/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 387/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
307# include <stdint.h> 388# include <stdint.h>
389# ifndef EFD_NONBLOCK
390# define EFD_NONBLOCK O_NONBLOCK
391# endif
392# ifndef EFD_CLOEXEC
393# ifdef O_CLOEXEC
394# define EFD_CLOEXEC O_CLOEXEC
395# else
396# define EFD_CLOEXEC 02000000
397# endif
398# endif
308# ifdef __cplusplus 399# ifdef __cplusplus
309extern "C" { 400extern "C" {
310# endif 401# endif
311int eventfd (unsigned int initval, int flags); 402int (eventfd) (unsigned int initval, int flags);
312# ifdef __cplusplus 403# ifdef __cplusplus
313} 404}
314# endif 405# endif
315#endif 406#endif
407
408#if EV_USE_SIGNALFD
409/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
410# include <stdint.h>
411# ifndef SFD_NONBLOCK
412# define SFD_NONBLOCK O_NONBLOCK
413# endif
414# ifndef SFD_CLOEXEC
415# ifdef O_CLOEXEC
416# define SFD_CLOEXEC O_CLOEXEC
417# else
418# define SFD_CLOEXEC 02000000
419# endif
420# endif
421# ifdef __cplusplus
422extern "C" {
423# endif
424int signalfd (int fd, const sigset_t *mask, int flags);
425
426struct signalfd_siginfo
427{
428 uint32_t ssi_signo;
429 char pad[128 - sizeof (uint32_t)];
430};
431# ifdef __cplusplus
432}
433# endif
434#endif
435
316 436
317/**/ 437/**/
318 438
319#if EV_VERIFY >= 3 439#if EV_VERIFY >= 3
320# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 440# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
… …
332 */ 452 */
333#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 453#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
334 454
335#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 455#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
336#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 456#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
337/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
338 457
339#if __GNUC__ >= 4 458#if __GNUC__ >= 4
340# define expect(expr,value) __builtin_expect ((expr),(value)) 459# define expect(expr,value) __builtin_expect ((expr),(value))
341# define noinline __attribute__ ((noinline)) 460# define noinline __attribute__ ((noinline))
342#else 461#else
… …
349 468
350#define expect_false(expr) expect ((expr) != 0, 0) 469#define expect_false(expr) expect ((expr) != 0, 0)
351#define expect_true(expr) expect ((expr) != 0, 1) 470#define expect_true(expr) expect ((expr) != 0, 1)
352#define inline_size static inline 471#define inline_size static inline
353 472
354#if EV_MINIMAL 473#if EV_FEATURE_CODE
474# define inline_speed static inline
475#else
355# define inline_speed static noinline 476# define inline_speed static noinline
477#endif
478
479#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
480
481#if EV_MINPRI == EV_MAXPRI
482# define ABSPRI(w) (((W)w), 0)
356#else 483#else
357# define inline_speed static inline
358#endif
359
360#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
361#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 484# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
485#endif
362 486
363#define EMPTY /* required for microsofts broken pseudo-c compiler */ 487#define EMPTY /* required for microsofts broken pseudo-c compiler */
364#define EMPTY2(a,b) /* used to suppress some warnings */ 488#define EMPTY2(a,b) /* used to suppress some warnings */
365 489
366typedef ev_watcher *W; 490typedef ev_watcher *W;
… …
368typedef ev_watcher_time *WT; 492typedef ev_watcher_time *WT;
369 493
370#define ev_active(w) ((W)(w))->active 494#define ev_active(w) ((W)(w))->active
371#define ev_at(w) ((WT)(w))->at 495#define ev_at(w) ((WT)(w))->at
372 496
373#if EV_USE_MONOTONIC 497#if EV_USE_REALTIME
374/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 498/* sig_atomic_t is used to avoid per-thread variables or locking but still */
375/* giving it a reasonably high chance of working on typical architetcures */ 499/* giving it a reasonably high chance of working on typical architetcures */
500static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
501#endif
502
503#if EV_USE_MONOTONIC
376static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 504static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
505#endif
506
507#ifndef EV_FD_TO_WIN32_HANDLE
508# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
509#endif
510#ifndef EV_WIN32_HANDLE_TO_FD
511# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
512#endif
513#ifndef EV_WIN32_CLOSE_FD
514# define EV_WIN32_CLOSE_FD(fd) close (fd)
377#endif 515#endif
378 516
379#ifdef _WIN32 517#ifdef _WIN32
380# include "ev_win32.c" 518# include "ev_win32.c"
381#endif 519#endif
382 520
383/*****************************************************************************/ 521/*****************************************************************************/
522
523#if EV_AVOID_STDIO
524static void noinline
525ev_printerr (const char *msg)
526{
527 write (STDERR_FILENO, msg, strlen (msg));
528}
529#endif
384 530
385static void (*syserr_cb)(const char *msg); 531static void (*syserr_cb)(const char *msg);
386 532
387void 533void
388ev_set_syserr_cb (void (*cb)(const char *msg)) 534ev_set_syserr_cb (void (*cb)(const char *msg))
… …
398 544
399 if (syserr_cb) 545 if (syserr_cb)
400 syserr_cb (msg); 546 syserr_cb (msg);
401 else 547 else
402 { 548 {
549#if EV_AVOID_STDIO
550 const char *err = strerror (errno);
551
552 ev_printerr (msg);
553 ev_printerr (": ");
554 ev_printerr (err);
555 ev_printerr ("\n");
556#else
403 perror (msg); 557 perror (msg);
558#endif
404 abort (); 559 abort ();
405 } 560 }
406} 561}
407 562
408static void * 563static void *
409ev_realloc_emul (void *ptr, long size) 564ev_realloc_emul (void *ptr, long size)
410{ 565{
566#if __GLIBC__
567 return realloc (ptr, size);
568#else
411 /* some systems, notably openbsd and darwin, fail to properly 569 /* some systems, notably openbsd and darwin, fail to properly
412 * implement realloc (x, 0) (as required by both ansi c-98 and 570 * implement realloc (x, 0) (as required by both ansi c-89 and
413 * the single unix specification, so work around them here. 571 * the single unix specification, so work around them here.
414 */ 572 */
415 573
416 if (size) 574 if (size)
417 return realloc (ptr, size); 575 return realloc (ptr, size);
418 576
419 free (ptr); 577 free (ptr);
420 return 0; 578 return 0;
579#endif
421} 580}
422 581
423static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 582static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
424 583
425void 584void
… …
433{ 592{
434 ptr = alloc (ptr, size); 593 ptr = alloc (ptr, size);
435 594
436 if (!ptr && size) 595 if (!ptr && size)
437 { 596 {
597#if EV_AVOID_STDIO
598 ev_printerr ("libev: memory allocation failed, aborting.\n");
599#else
438 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 600 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
601#endif
439 abort (); 602 abort ();
440 } 603 }
441 604
442 return ptr; 605 return ptr;
443} 606}
… …
445#define ev_malloc(size) ev_realloc (0, (size)) 608#define ev_malloc(size) ev_realloc (0, (size))
446#define ev_free(ptr) ev_realloc ((ptr), 0) 609#define ev_free(ptr) ev_realloc ((ptr), 0)
447 610
448/*****************************************************************************/ 611/*****************************************************************************/
449 612
613/* set in reify when reification needed */
614#define EV_ANFD_REIFY 1
615
616/* file descriptor info structure */
450typedef struct 617typedef struct
451{ 618{
452 WL head; 619 WL head;
453 unsigned char events; 620 unsigned char events; /* the events watched for */
454 unsigned char reify; 621 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
455 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 622 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
456 unsigned char unused; 623 unsigned char unused;
457#if EV_USE_EPOLL 624#if EV_USE_EPOLL
458 unsigned int egen; /* generation counter to counter epoll bugs */ 625 unsigned int egen; /* generation counter to counter epoll bugs */
459#endif 626#endif
460#if EV_SELECT_IS_WINSOCKET 627#if EV_SELECT_IS_WINSOCKET
461 SOCKET handle; 628 SOCKET handle;
462#endif 629#endif
463} ANFD; 630} ANFD;
464 631
632/* stores the pending event set for a given watcher */
465typedef struct 633typedef struct
466{ 634{
467 W w; 635 W w;
468 int events; 636 int events; /* the pending event set for the given watcher */
469} ANPENDING; 637} ANPENDING;
470 638
471#if EV_USE_INOTIFY 639#if EV_USE_INOTIFY
472/* hash table entry per inotify-id */ 640/* hash table entry per inotify-id */
473typedef struct 641typedef struct
… …
476} ANFS; 644} ANFS;
477#endif 645#endif
478 646
479/* Heap Entry */ 647/* Heap Entry */
480#if EV_HEAP_CACHE_AT 648#if EV_HEAP_CACHE_AT
649 /* a heap element */
481 typedef struct { 650 typedef struct {
482 ev_tstamp at; 651 ev_tstamp at;
483 WT w; 652 WT w;
484 } ANHE; 653 } ANHE;
485 654
486 #define ANHE_w(he) (he).w /* access watcher, read-write */ 655 #define ANHE_w(he) (he).w /* access watcher, read-write */
487 #define ANHE_at(he) (he).at /* access cached at, read-only */ 656 #define ANHE_at(he) (he).at /* access cached at, read-only */
488 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ 657 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
489#else 658#else
659 /* a heap element */
490 typedef WT ANHE; 660 typedef WT ANHE;
491 661
492 #define ANHE_w(he) (he) 662 #define ANHE_w(he) (he)
493 #define ANHE_at(he) (he)->at 663 #define ANHE_at(he) (he)->at
494 #define ANHE_at_cache(he) 664 #define ANHE_at_cache(he)
… …
518 688
519 static int ev_default_loop_ptr; 689 static int ev_default_loop_ptr;
520 690
521#endif 691#endif
522 692
693#if EV_FEATURE_API
694# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
695# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
696# define EV_INVOKE_PENDING invoke_cb (EV_A)
697#else
698# define EV_RELEASE_CB (void)0
699# define EV_ACQUIRE_CB (void)0
700# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
701#endif
702
703#define EVUNLOOP_RECURSE 0x80
704
523/*****************************************************************************/ 705/*****************************************************************************/
524 706
707#ifndef EV_HAVE_EV_TIME
525ev_tstamp 708ev_tstamp
526ev_time (void) 709ev_time (void)
527{ 710{
528#if EV_USE_REALTIME 711#if EV_USE_REALTIME
712 if (expect_true (have_realtime))
713 {
529 struct timespec ts; 714 struct timespec ts;
530 clock_gettime (CLOCK_REALTIME, &ts); 715 clock_gettime (CLOCK_REALTIME, &ts);
531 return ts.tv_sec + ts.tv_nsec * 1e-9; 716 return ts.tv_sec + ts.tv_nsec * 1e-9;
532#else 717 }
718#endif
719
533 struct timeval tv; 720 struct timeval tv;
534 gettimeofday (&tv, 0); 721 gettimeofday (&tv, 0);
535 return tv.tv_sec + tv.tv_usec * 1e-6; 722 return tv.tv_sec + tv.tv_usec * 1e-6;
536#endif
537} 723}
724#endif
538 725
539ev_tstamp inline_size 726inline_size ev_tstamp
540get_clock (void) 727get_clock (void)
541{ 728{
542#if EV_USE_MONOTONIC 729#if EV_USE_MONOTONIC
543 if (expect_true (have_monotonic)) 730 if (expect_true (have_monotonic))
544 { 731 {
… …
578 765
579 tv.tv_sec = (time_t)delay; 766 tv.tv_sec = (time_t)delay;
580 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 767 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
581 768
582 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 769 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
583 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 770 /* something not guaranteed by newer posix versions, but guaranteed */
584 /* by older ones */ 771 /* by older ones */
585 select (0, 0, 0, 0, &tv); 772 select (0, 0, 0, 0, &tv);
586#endif 773#endif
587 } 774 }
588} 775}
589 776
590/*****************************************************************************/ 777/*****************************************************************************/
591 778
592#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 779#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
593 780
594int inline_size 781/* find a suitable new size for the given array, */
782/* hopefully by rounding to a ncie-to-malloc size */
783inline_size int
595array_nextsize (int elem, int cur, int cnt) 784array_nextsize (int elem, int cur, int cnt)
596{ 785{
597 int ncur = cur + 1; 786 int ncur = cur + 1;
598 787
599 do 788 do
… …
640 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 829 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
641 } 830 }
642#endif 831#endif
643 832
644#define array_free(stem, idx) \ 833#define array_free(stem, idx) \
645 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 834 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
646 835
647/*****************************************************************************/ 836/*****************************************************************************/
837
838/* dummy callback for pending events */
839static void noinline
840pendingcb (EV_P_ ev_prepare *w, int revents)
841{
842}
648 843
649void noinline 844void noinline
650ev_feed_event (EV_P_ void *w, int revents) 845ev_feed_event (EV_P_ void *w, int revents)
651{ 846{
652 W w_ = (W)w; 847 W w_ = (W)w;
… …
661 pendings [pri][w_->pending - 1].w = w_; 856 pendings [pri][w_->pending - 1].w = w_;
662 pendings [pri][w_->pending - 1].events = revents; 857 pendings [pri][w_->pending - 1].events = revents;
663 } 858 }
664} 859}
665 860
666void inline_speed 861inline_speed void
862feed_reverse (EV_P_ W w)
863{
864 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
865 rfeeds [rfeedcnt++] = w;
866}
867
868inline_size void
869feed_reverse_done (EV_P_ int revents)
870{
871 do
872 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
873 while (rfeedcnt);
874}
875
876inline_speed void
667queue_events (EV_P_ W *events, int eventcnt, int type) 877queue_events (EV_P_ W *events, int eventcnt, int type)
668{ 878{
669 int i; 879 int i;
670 880
671 for (i = 0; i < eventcnt; ++i) 881 for (i = 0; i < eventcnt; ++i)
672 ev_feed_event (EV_A_ events [i], type); 882 ev_feed_event (EV_A_ events [i], type);
673} 883}
674 884
675/*****************************************************************************/ 885/*****************************************************************************/
676 886
677void inline_speed 887inline_speed void
678fd_event (EV_P_ int fd, int revents) 888fd_event_nocheck (EV_P_ int fd, int revents)
679{ 889{
680 ANFD *anfd = anfds + fd; 890 ANFD *anfd = anfds + fd;
681 ev_io *w; 891 ev_io *w;
682 892
683 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 893 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
687 if (ev) 897 if (ev)
688 ev_feed_event (EV_A_ (W)w, ev); 898 ev_feed_event (EV_A_ (W)w, ev);
689 } 899 }
690} 900}
691 901
902/* do not submit kernel events for fds that have reify set */
903/* because that means they changed while we were polling for new events */
904inline_speed void
905fd_event (EV_P_ int fd, int revents)
906{
907 ANFD *anfd = anfds + fd;
908
909 if (expect_true (!anfd->reify))
910 fd_event_nocheck (EV_A_ fd, revents);
911}
912
692void 913void
693ev_feed_fd_event (EV_P_ int fd, int revents) 914ev_feed_fd_event (EV_P_ int fd, int revents)
694{ 915{
695 if (fd >= 0 && fd < anfdmax) 916 if (fd >= 0 && fd < anfdmax)
696 fd_event (EV_A_ fd, revents); 917 fd_event_nocheck (EV_A_ fd, revents);
697} 918}
698 919
699void inline_size 920/* make sure the external fd watch events are in-sync */
921/* with the kernel/libev internal state */
922inline_size void
700fd_reify (EV_P) 923fd_reify (EV_P)
701{ 924{
702 int i; 925 int i;
703 926
704 for (i = 0; i < fdchangecnt; ++i) 927 for (i = 0; i < fdchangecnt; ++i)
… …
714 937
715#if EV_SELECT_IS_WINSOCKET 938#if EV_SELECT_IS_WINSOCKET
716 if (events) 939 if (events)
717 { 940 {
718 unsigned long arg; 941 unsigned long arg;
719 #ifdef EV_FD_TO_WIN32_HANDLE
720 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 942 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
721 #else
722 anfd->handle = _get_osfhandle (fd);
723 #endif
724 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 943 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
725 } 944 }
726#endif 945#endif
727 946
728 { 947 {
729 unsigned char o_events = anfd->events; 948 unsigned char o_events = anfd->events;
730 unsigned char o_reify = anfd->reify; 949 unsigned char o_reify = anfd->reify;
731 950
732 anfd->reify = 0; 951 anfd->reify = 0;
733 anfd->events = events; 952 anfd->events = events;
734 953
735 if (o_events != events || o_reify & EV_IOFDSET) 954 if (o_events != events || o_reify & EV__IOFDSET)
736 backend_modify (EV_A_ fd, o_events, events); 955 backend_modify (EV_A_ fd, o_events, events);
737 } 956 }
738 } 957 }
739 958
740 fdchangecnt = 0; 959 fdchangecnt = 0;
741} 960}
742 961
743void inline_size 962/* something about the given fd changed */
963inline_size void
744fd_change (EV_P_ int fd, int flags) 964fd_change (EV_P_ int fd, int flags)
745{ 965{
746 unsigned char reify = anfds [fd].reify; 966 unsigned char reify = anfds [fd].reify;
747 anfds [fd].reify |= flags; 967 anfds [fd].reify |= flags;
748 968
… …
752 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 972 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
753 fdchanges [fdchangecnt - 1] = fd; 973 fdchanges [fdchangecnt - 1] = fd;
754 } 974 }
755} 975}
756 976
757void inline_speed 977/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
978inline_speed void
758fd_kill (EV_P_ int fd) 979fd_kill (EV_P_ int fd)
759{ 980{
760 ev_io *w; 981 ev_io *w;
761 982
762 while ((w = (ev_io *)anfds [fd].head)) 983 while ((w = (ev_io *)anfds [fd].head))
… …
764 ev_io_stop (EV_A_ w); 985 ev_io_stop (EV_A_ w);
765 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 986 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
766 } 987 }
767} 988}
768 989
769int inline_size 990/* check whether the given fd is actually valid, for error recovery */
991inline_size int
770fd_valid (int fd) 992fd_valid (int fd)
771{ 993{
772#ifdef _WIN32 994#ifdef _WIN32
773 return _get_osfhandle (fd) != -1; 995 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
774#else 996#else
775 return fcntl (fd, F_GETFD) != -1; 997 return fcntl (fd, F_GETFD) != -1;
776#endif 998#endif
777} 999}
778 1000
… …
796 1018
797 for (fd = anfdmax; fd--; ) 1019 for (fd = anfdmax; fd--; )
798 if (anfds [fd].events) 1020 if (anfds [fd].events)
799 { 1021 {
800 fd_kill (EV_A_ fd); 1022 fd_kill (EV_A_ fd);
801 return; 1023 break;
802 } 1024 }
803} 1025}
804 1026
805/* usually called after fork if backend needs to re-arm all fds from scratch */ 1027/* usually called after fork if backend needs to re-arm all fds from scratch */
806static void noinline 1028static void noinline
… …
811 for (fd = 0; fd < anfdmax; ++fd) 1033 for (fd = 0; fd < anfdmax; ++fd)
812 if (anfds [fd].events) 1034 if (anfds [fd].events)
813 { 1035 {
814 anfds [fd].events = 0; 1036 anfds [fd].events = 0;
815 anfds [fd].emask = 0; 1037 anfds [fd].emask = 0;
816 fd_change (EV_A_ fd, EV_IOFDSET | 1); 1038 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
817 } 1039 }
1040}
1041
1042/* used to prepare libev internal fd's */
1043/* this is not fork-safe */
1044inline_speed void
1045fd_intern (int fd)
1046{
1047#ifdef _WIN32
1048 unsigned long arg = 1;
1049 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1050#else
1051 fcntl (fd, F_SETFD, FD_CLOEXEC);
1052 fcntl (fd, F_SETFL, O_NONBLOCK);
1053#endif
818} 1054}
819 1055
820/*****************************************************************************/ 1056/*****************************************************************************/
821 1057
822/* 1058/*
… …
837#define HEAP0 (DHEAP - 1) /* index of first element in heap */ 1073#define HEAP0 (DHEAP - 1) /* index of first element in heap */
838#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) 1074#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
839#define UPHEAP_DONE(p,k) ((p) == (k)) 1075#define UPHEAP_DONE(p,k) ((p) == (k))
840 1076
841/* away from the root */ 1077/* away from the root */
842void inline_speed 1078inline_speed void
843downheap (ANHE *heap, int N, int k) 1079downheap (ANHE *heap, int N, int k)
844{ 1080{
845 ANHE he = heap [k]; 1081 ANHE he = heap [k];
846 ANHE *E = heap + N + HEAP0; 1082 ANHE *E = heap + N + HEAP0;
847 1083
… …
887#define HEAP0 1 1123#define HEAP0 1
888#define HPARENT(k) ((k) >> 1) 1124#define HPARENT(k) ((k) >> 1)
889#define UPHEAP_DONE(p,k) (!(p)) 1125#define UPHEAP_DONE(p,k) (!(p))
890 1126
891/* away from the root */ 1127/* away from the root */
892void inline_speed 1128inline_speed void
893downheap (ANHE *heap, int N, int k) 1129downheap (ANHE *heap, int N, int k)
894{ 1130{
895 ANHE he = heap [k]; 1131 ANHE he = heap [k];
896 1132
897 for (;;) 1133 for (;;)
898 { 1134 {
899 int c = k << 1; 1135 int c = k << 1;
900 1136
901 if (c > N + HEAP0 - 1) 1137 if (c >= N + HEAP0)
902 break; 1138 break;
903 1139
904 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1140 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
905 ? 1 : 0; 1141 ? 1 : 0;
906 1142
… …
917 ev_active (ANHE_w (he)) = k; 1153 ev_active (ANHE_w (he)) = k;
918} 1154}
919#endif 1155#endif
920 1156
921/* towards the root */ 1157/* towards the root */
922void inline_speed 1158inline_speed void
923upheap (ANHE *heap, int k) 1159upheap (ANHE *heap, int k)
924{ 1160{
925 ANHE he = heap [k]; 1161 ANHE he = heap [k];
926 1162
927 for (;;) 1163 for (;;)
… …
938 1174
939 heap [k] = he; 1175 heap [k] = he;
940 ev_active (ANHE_w (he)) = k; 1176 ev_active (ANHE_w (he)) = k;
941} 1177}
942 1178
943void inline_size 1179/* move an element suitably so it is in a correct place */
1180inline_size void
944adjustheap (ANHE *heap, int N, int k) 1181adjustheap (ANHE *heap, int N, int k)
945{ 1182{
946 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1183 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
947 upheap (heap, k); 1184 upheap (heap, k);
948 else 1185 else
949 downheap (heap, N, k); 1186 downheap (heap, N, k);
950} 1187}
951 1188
952/* rebuild the heap: this function is used only once and executed rarely */ 1189/* rebuild the heap: this function is used only once and executed rarely */
953void inline_size 1190inline_size void
954reheap (ANHE *heap, int N) 1191reheap (ANHE *heap, int N)
955{ 1192{
956 int i; 1193 int i;
957 1194
958 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ 1195 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
… …
961 upheap (heap, i + HEAP0); 1198 upheap (heap, i + HEAP0);
962} 1199}
963 1200
964/*****************************************************************************/ 1201/*****************************************************************************/
965 1202
1203/* associate signal watchers to a signal signal */
966typedef struct 1204typedef struct
967{ 1205{
1206 EV_ATOMIC_T pending;
1207#if EV_MULTIPLICITY
1208 EV_P;
1209#endif
968 WL head; 1210 WL head;
969 EV_ATOMIC_T gotsig;
970} ANSIG; 1211} ANSIG;
971 1212
972static ANSIG *signals; 1213static ANSIG signals [EV_NSIG - 1];
973static int signalmax;
974
975static EV_ATOMIC_T gotsig;
976 1214
977/*****************************************************************************/ 1215/*****************************************************************************/
978 1216
979void inline_speed 1217#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
980fd_intern (int fd)
981{
982#ifdef _WIN32
983 unsigned long arg = 1;
984 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
985#else
986 fcntl (fd, F_SETFD, FD_CLOEXEC);
987 fcntl (fd, F_SETFL, O_NONBLOCK);
988#endif
989}
990 1218
991static void noinline 1219static void noinline
992evpipe_init (EV_P) 1220evpipe_init (EV_P)
993{ 1221{
994 if (!ev_is_active (&pipeev)) 1222 if (!ev_is_active (&pipe_w))
995 { 1223 {
996#if EV_USE_EVENTFD 1224# if EV_USE_EVENTFD
1225 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1226 if (evfd < 0 && errno == EINVAL)
997 if ((evfd = eventfd (0, 0)) >= 0) 1227 evfd = eventfd (0, 0);
1228
1229 if (evfd >= 0)
998 { 1230 {
999 evpipe [0] = -1; 1231 evpipe [0] = -1;
1000 fd_intern (evfd); 1232 fd_intern (evfd); /* doing it twice doesn't hurt */
1001 ev_io_set (&pipeev, evfd, EV_READ); 1233 ev_io_set (&pipe_w, evfd, EV_READ);
1002 } 1234 }
1003 else 1235 else
1004#endif 1236# endif
1005 { 1237 {
1006 while (pipe (evpipe)) 1238 while (pipe (evpipe))
1007 ev_syserr ("(libev) error creating signal/async pipe"); 1239 ev_syserr ("(libev) error creating signal/async pipe");
1008 1240
1009 fd_intern (evpipe [0]); 1241 fd_intern (evpipe [0]);
1010 fd_intern (evpipe [1]); 1242 fd_intern (evpipe [1]);
1011 ev_io_set (&pipeev, evpipe [0], EV_READ); 1243 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1012 } 1244 }
1013 1245
1014 ev_io_start (EV_A_ &pipeev); 1246 ev_io_start (EV_A_ &pipe_w);
1015 ev_unref (EV_A); /* watcher should not keep loop alive */ 1247 ev_unref (EV_A); /* watcher should not keep loop alive */
1016 } 1248 }
1017} 1249}
1018 1250
1019void inline_size 1251inline_size void
1020evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1252evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1021{ 1253{
1022 if (!*flag) 1254 if (!*flag)
1023 { 1255 {
1024 int old_errno = errno; /* save errno because write might clobber it */ 1256 int old_errno = errno; /* save errno because write might clobber it */
1257 char dummy;
1025 1258
1026 *flag = 1; 1259 *flag = 1;
1027 1260
1028#if EV_USE_EVENTFD 1261#if EV_USE_EVENTFD
1029 if (evfd >= 0) 1262 if (evfd >= 0)
… …
1031 uint64_t counter = 1; 1264 uint64_t counter = 1;
1032 write (evfd, &counter, sizeof (uint64_t)); 1265 write (evfd, &counter, sizeof (uint64_t));
1033 } 1266 }
1034 else 1267 else
1035#endif 1268#endif
1036 write (evpipe [1], &old_errno, 1); 1269 write (evpipe [1], &dummy, 1);
1037 1270
1038 errno = old_errno; 1271 errno = old_errno;
1039 } 1272 }
1040} 1273}
1041 1274
1275/* called whenever the libev signal pipe */
1276/* got some events (signal, async) */
1042static void 1277static void
1043pipecb (EV_P_ ev_io *iow, int revents) 1278pipecb (EV_P_ ev_io *iow, int revents)
1044{ 1279{
1280 int i;
1281
1045#if EV_USE_EVENTFD 1282#if EV_USE_EVENTFD
1046 if (evfd >= 0) 1283 if (evfd >= 0)
1047 { 1284 {
1048 uint64_t counter; 1285 uint64_t counter;
1049 read (evfd, &counter, sizeof (uint64_t)); 1286 read (evfd, &counter, sizeof (uint64_t));
… …
1053 { 1290 {
1054 char dummy; 1291 char dummy;
1055 read (evpipe [0], &dummy, 1); 1292 read (evpipe [0], &dummy, 1);
1056 } 1293 }
1057 1294
1058 if (gotsig && ev_is_default_loop (EV_A)) 1295 if (sig_pending)
1059 { 1296 {
1060 int signum; 1297 sig_pending = 0;
1061 gotsig = 0;
1062 1298
1063 for (signum = signalmax; signum--; ) 1299 for (i = EV_NSIG - 1; i--; )
1064 if (signals [signum].gotsig) 1300 if (expect_false (signals [i].pending))
1065 ev_feed_signal_event (EV_A_ signum + 1); 1301 ev_feed_signal_event (EV_A_ i + 1);
1066 } 1302 }
1067 1303
1068#if EV_ASYNC_ENABLE 1304#if EV_ASYNC_ENABLE
1069 if (gotasync) 1305 if (async_pending)
1070 { 1306 {
1071 int i; 1307 async_pending = 0;
1072 gotasync = 0;
1073 1308
1074 for (i = asynccnt; i--; ) 1309 for (i = asynccnt; i--; )
1075 if (asyncs [i]->sent) 1310 if (asyncs [i]->sent)
1076 { 1311 {
1077 asyncs [i]->sent = 0; 1312 asyncs [i]->sent = 0;
… …
1085 1320
1086static void 1321static void
1087ev_sighandler (int signum) 1322ev_sighandler (int signum)
1088{ 1323{
1089#if EV_MULTIPLICITY 1324#if EV_MULTIPLICITY
1090 struct ev_loop *loop = &default_loop_struct; 1325 EV_P = signals [signum - 1].loop;
1091#endif 1326#endif
1092 1327
1093#if _WIN32 1328#ifdef _WIN32
1094 signal (signum, ev_sighandler); 1329 signal (signum, ev_sighandler);
1095#endif 1330#endif
1096 1331
1097 signals [signum - 1].gotsig = 1; 1332 signals [signum - 1].pending = 1;
1098 evpipe_write (EV_A_ &gotsig); 1333 evpipe_write (EV_A_ &sig_pending);
1099} 1334}
1100 1335
1101void noinline 1336void noinline
1102ev_feed_signal_event (EV_P_ int signum) 1337ev_feed_signal_event (EV_P_ int signum)
1103{ 1338{
1104 WL w; 1339 WL w;
1105 1340
1341 if (expect_false (signum <= 0 || signum > EV_NSIG))
1342 return;
1343
1344 --signum;
1345
1106#if EV_MULTIPLICITY 1346#if EV_MULTIPLICITY
1107 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1347 /* it is permissible to try to feed a signal to the wrong loop */
1108#endif 1348 /* or, likely more useful, feeding a signal nobody is waiting for */
1109 1349
1110 --signum; 1350 if (expect_false (signals [signum].loop != EV_A))
1111
1112 if (signum < 0 || signum >= signalmax)
1113 return; 1351 return;
1352#endif
1114 1353
1115 signals [signum].gotsig = 0; 1354 signals [signum].pending = 0;
1116 1355
1117 for (w = signals [signum].head; w; w = w->next) 1356 for (w = signals [signum].head; w; w = w->next)
1118 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1357 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1119} 1358}
1120 1359
1360#if EV_USE_SIGNALFD
1361static void
1362sigfdcb (EV_P_ ev_io *iow, int revents)
1363{
1364 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1365
1366 for (;;)
1367 {
1368 ssize_t res = read (sigfd, si, sizeof (si));
1369
1370 /* not ISO-C, as res might be -1, but works with SuS */
1371 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1372 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1373
1374 if (res < (ssize_t)sizeof (si))
1375 break;
1376 }
1377}
1378#endif
1379
1380#endif
1381
1121/*****************************************************************************/ 1382/*****************************************************************************/
1122 1383
1384#if EV_CHILD_ENABLE
1123static WL childs [EV_PID_HASHSIZE]; 1385static WL childs [EV_PID_HASHSIZE];
1124
1125#ifndef _WIN32
1126 1386
1127static ev_signal childev; 1387static ev_signal childev;
1128 1388
1129#ifndef WIFCONTINUED 1389#ifndef WIFCONTINUED
1130# define WIFCONTINUED(status) 0 1390# define WIFCONTINUED(status) 0
1131#endif 1391#endif
1132 1392
1133void inline_speed 1393/* handle a single child status event */
1394inline_speed void
1134child_reap (EV_P_ int chain, int pid, int status) 1395child_reap (EV_P_ int chain, int pid, int status)
1135{ 1396{
1136 ev_child *w; 1397 ev_child *w;
1137 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1398 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1138 1399
1139 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1400 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1140 { 1401 {
1141 if ((w->pid == pid || !w->pid) 1402 if ((w->pid == pid || !w->pid)
1142 && (!traced || (w->flags & 1))) 1403 && (!traced || (w->flags & 1)))
1143 { 1404 {
1144 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1405 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1151 1412
1152#ifndef WCONTINUED 1413#ifndef WCONTINUED
1153# define WCONTINUED 0 1414# define WCONTINUED 0
1154#endif 1415#endif
1155 1416
1417/* called on sigchld etc., calls waitpid */
1156static void 1418static void
1157childcb (EV_P_ ev_signal *sw, int revents) 1419childcb (EV_P_ ev_signal *sw, int revents)
1158{ 1420{
1159 int pid, status; 1421 int pid, status;
1160 1422
… …
1168 /* make sure we are called again until all children have been reaped */ 1430 /* make sure we are called again until all children have been reaped */
1169 /* we need to do it this way so that the callback gets called before we continue */ 1431 /* we need to do it this way so that the callback gets called before we continue */
1170 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1432 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1171 1433
1172 child_reap (EV_A_ pid, pid, status); 1434 child_reap (EV_A_ pid, pid, status);
1173 if (EV_PID_HASHSIZE > 1) 1435 if ((EV_PID_HASHSIZE) > 1)
1174 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1436 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1175} 1437}
1176 1438
1177#endif 1439#endif
1178 1440
… …
1241 /* kqueue is borked on everything but netbsd apparently */ 1503 /* kqueue is borked on everything but netbsd apparently */
1242 /* it usually doesn't work correctly on anything but sockets and pipes */ 1504 /* it usually doesn't work correctly on anything but sockets and pipes */
1243 flags &= ~EVBACKEND_KQUEUE; 1505 flags &= ~EVBACKEND_KQUEUE;
1244#endif 1506#endif
1245#ifdef __APPLE__ 1507#ifdef __APPLE__
1246 // flags &= ~EVBACKEND_KQUEUE; for documentation 1508 /* only select works correctly on that "unix-certified" platform */
1247 flags &= ~EVBACKEND_POLL; 1509 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1510 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1248#endif 1511#endif
1249 1512
1250 return flags; 1513 return flags;
1251} 1514}
1252 1515
… …
1266ev_backend (EV_P) 1529ev_backend (EV_P)
1267{ 1530{
1268 return backend; 1531 return backend;
1269} 1532}
1270 1533
1534#if EV_FEATURE_API
1271unsigned int 1535unsigned int
1272ev_loop_count (EV_P) 1536ev_loop_count (EV_P)
1273{ 1537{
1274 return loop_count; 1538 return loop_count;
1275} 1539}
1276 1540
1541unsigned int
1542ev_loop_depth (EV_P)
1543{
1544 return loop_depth;
1545}
1546
1277void 1547void
1278ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1548ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1279{ 1549{
1280 io_blocktime = interval; 1550 io_blocktime = interval;
1281} 1551}
… …
1284ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1554ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1285{ 1555{
1286 timeout_blocktime = interval; 1556 timeout_blocktime = interval;
1287} 1557}
1288 1558
1559void
1560ev_set_userdata (EV_P_ void *data)
1561{
1562 userdata = data;
1563}
1564
1565void *
1566ev_userdata (EV_P)
1567{
1568 return userdata;
1569}
1570
1571void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1572{
1573 invoke_cb = invoke_pending_cb;
1574}
1575
1576void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1577{
1578 release_cb = release;
1579 acquire_cb = acquire;
1580}
1581#endif
1582
1583/* initialise a loop structure, must be zero-initialised */
1289static void noinline 1584static void noinline
1290loop_init (EV_P_ unsigned int flags) 1585loop_init (EV_P_ unsigned int flags)
1291{ 1586{
1292 if (!backend) 1587 if (!backend)
1293 { 1588 {
1589#if EV_USE_REALTIME
1590 if (!have_realtime)
1591 {
1592 struct timespec ts;
1593
1594 if (!clock_gettime (CLOCK_REALTIME, &ts))
1595 have_realtime = 1;
1596 }
1597#endif
1598
1294#if EV_USE_MONOTONIC 1599#if EV_USE_MONOTONIC
1600 if (!have_monotonic)
1295 { 1601 {
1296 struct timespec ts; 1602 struct timespec ts;
1603
1297 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1604 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1298 have_monotonic = 1; 1605 have_monotonic = 1;
1299 } 1606 }
1300#endif 1607#endif
1608
1609 /* pid check not overridable via env */
1610#ifndef _WIN32
1611 if (flags & EVFLAG_FORKCHECK)
1612 curpid = getpid ();
1613#endif
1614
1615 if (!(flags & EVFLAG_NOENV)
1616 && !enable_secure ()
1617 && getenv ("LIBEV_FLAGS"))
1618 flags = atoi (getenv ("LIBEV_FLAGS"));
1301 1619
1302 ev_rt_now = ev_time (); 1620 ev_rt_now = ev_time ();
1303 mn_now = get_clock (); 1621 mn_now = get_clock ();
1304 now_floor = mn_now; 1622 now_floor = mn_now;
1305 rtmn_diff = ev_rt_now - mn_now; 1623 rtmn_diff = ev_rt_now - mn_now;
1624#if EV_FEATURE_API
1625 invoke_cb = ev_invoke_pending;
1626#endif
1306 1627
1307 io_blocktime = 0.; 1628 io_blocktime = 0.;
1308 timeout_blocktime = 0.; 1629 timeout_blocktime = 0.;
1309 backend = 0; 1630 backend = 0;
1310 backend_fd = -1; 1631 backend_fd = -1;
1311 gotasync = 0; 1632 sig_pending = 0;
1633#if EV_ASYNC_ENABLE
1634 async_pending = 0;
1635#endif
1312#if EV_USE_INOTIFY 1636#if EV_USE_INOTIFY
1313 fs_fd = -2; 1637 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1314#endif 1638#endif
1315 1639#if EV_USE_SIGNALFD
1316 /* pid check not overridable via env */ 1640 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1317#ifndef _WIN32
1318 if (flags & EVFLAG_FORKCHECK)
1319 curpid = getpid ();
1320#endif 1641#endif
1321
1322 if (!(flags & EVFLAG_NOENV)
1323 && !enable_secure ()
1324 && getenv ("LIBEV_FLAGS"))
1325 flags = atoi (getenv ("LIBEV_FLAGS"));
1326 1642
1327 if (!(flags & 0x0000ffffU)) 1643 if (!(flags & 0x0000ffffU))
1328 flags |= ev_recommended_backends (); 1644 flags |= ev_recommended_backends ();
1329 1645
1330#if EV_USE_PORT 1646#if EV_USE_PORT
… …
1341#endif 1657#endif
1342#if EV_USE_SELECT 1658#if EV_USE_SELECT
1343 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1659 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1344#endif 1660#endif
1345 1661
1662 ev_prepare_init (&pending_w, pendingcb);
1663
1664#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1346 ev_init (&pipeev, pipecb); 1665 ev_init (&pipe_w, pipecb);
1347 ev_set_priority (&pipeev, EV_MAXPRI); 1666 ev_set_priority (&pipe_w, EV_MAXPRI);
1667#endif
1348 } 1668 }
1349} 1669}
1350 1670
1671/* free up a loop structure */
1351static void noinline 1672static void noinline
1352loop_destroy (EV_P) 1673loop_destroy (EV_P)
1353{ 1674{
1354 int i; 1675 int i;
1355 1676
1356 if (ev_is_active (&pipeev)) 1677 if (ev_is_active (&pipe_w))
1357 { 1678 {
1358 ev_ref (EV_A); /* signal watcher */ 1679 /*ev_ref (EV_A);*/
1359 ev_io_stop (EV_A_ &pipeev); 1680 /*ev_io_stop (EV_A_ &pipe_w);*/
1360 1681
1361#if EV_USE_EVENTFD 1682#if EV_USE_EVENTFD
1362 if (evfd >= 0) 1683 if (evfd >= 0)
1363 close (evfd); 1684 close (evfd);
1364#endif 1685#endif
1365 1686
1366 if (evpipe [0] >= 0) 1687 if (evpipe [0] >= 0)
1367 { 1688 {
1368 close (evpipe [0]); 1689 EV_WIN32_CLOSE_FD (evpipe [0]);
1369 close (evpipe [1]); 1690 EV_WIN32_CLOSE_FD (evpipe [1]);
1370 } 1691 }
1371 } 1692 }
1693
1694#if EV_USE_SIGNALFD
1695 if (ev_is_active (&sigfd_w))
1696 close (sigfd);
1697#endif
1372 1698
1373#if EV_USE_INOTIFY 1699#if EV_USE_INOTIFY
1374 if (fs_fd >= 0) 1700 if (fs_fd >= 0)
1375 close (fs_fd); 1701 close (fs_fd);
1376#endif 1702#endif
… …
1400#if EV_IDLE_ENABLE 1726#if EV_IDLE_ENABLE
1401 array_free (idle, [i]); 1727 array_free (idle, [i]);
1402#endif 1728#endif
1403 } 1729 }
1404 1730
1405 ev_free (anfds); anfdmax = 0; 1731 ev_free (anfds); anfds = 0; anfdmax = 0;
1406 1732
1407 /* have to use the microsoft-never-gets-it-right macro */ 1733 /* have to use the microsoft-never-gets-it-right macro */
1734 array_free (rfeed, EMPTY);
1408 array_free (fdchange, EMPTY); 1735 array_free (fdchange, EMPTY);
1409 array_free (timer, EMPTY); 1736 array_free (timer, EMPTY);
1410#if EV_PERIODIC_ENABLE 1737#if EV_PERIODIC_ENABLE
1411 array_free (periodic, EMPTY); 1738 array_free (periodic, EMPTY);
1412#endif 1739#endif
… …
1421 1748
1422 backend = 0; 1749 backend = 0;
1423} 1750}
1424 1751
1425#if EV_USE_INOTIFY 1752#if EV_USE_INOTIFY
1426void inline_size infy_fork (EV_P); 1753inline_size void infy_fork (EV_P);
1427#endif 1754#endif
1428 1755
1429void inline_size 1756inline_size void
1430loop_fork (EV_P) 1757loop_fork (EV_P)
1431{ 1758{
1432#if EV_USE_PORT 1759#if EV_USE_PORT
1433 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1760 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1434#endif 1761#endif
… …
1440#endif 1767#endif
1441#if EV_USE_INOTIFY 1768#if EV_USE_INOTIFY
1442 infy_fork (EV_A); 1769 infy_fork (EV_A);
1443#endif 1770#endif
1444 1771
1445 if (ev_is_active (&pipeev)) 1772 if (ev_is_active (&pipe_w))
1446 { 1773 {
1447 /* this "locks" the handlers against writing to the pipe */ 1774 /* this "locks" the handlers against writing to the pipe */
1448 /* while we modify the fd vars */ 1775 /* while we modify the fd vars */
1449 gotsig = 1; 1776 sig_pending = 1;
1450#if EV_ASYNC_ENABLE 1777#if EV_ASYNC_ENABLE
1451 gotasync = 1; 1778 async_pending = 1;
1452#endif 1779#endif
1453 1780
1454 ev_ref (EV_A); 1781 ev_ref (EV_A);
1455 ev_io_stop (EV_A_ &pipeev); 1782 ev_io_stop (EV_A_ &pipe_w);
1456 1783
1457#if EV_USE_EVENTFD 1784#if EV_USE_EVENTFD
1458 if (evfd >= 0) 1785 if (evfd >= 0)
1459 close (evfd); 1786 close (evfd);
1460#endif 1787#endif
1461 1788
1462 if (evpipe [0] >= 0) 1789 if (evpipe [0] >= 0)
1463 { 1790 {
1464 close (evpipe [0]); 1791 EV_WIN32_CLOSE_FD (evpipe [0]);
1465 close (evpipe [1]); 1792 EV_WIN32_CLOSE_FD (evpipe [1]);
1466 } 1793 }
1467 1794
1795#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1468 evpipe_init (EV_A); 1796 evpipe_init (EV_A);
1469 /* now iterate over everything, in case we missed something */ 1797 /* now iterate over everything, in case we missed something */
1470 pipecb (EV_A_ &pipeev, EV_READ); 1798 pipecb (EV_A_ &pipe_w, EV_READ);
1799#endif
1471 } 1800 }
1472 1801
1473 postfork = 0; 1802 postfork = 0;
1474} 1803}
1475 1804
1476#if EV_MULTIPLICITY 1805#if EV_MULTIPLICITY
1477 1806
1478struct ev_loop * 1807struct ev_loop *
1479ev_loop_new (unsigned int flags) 1808ev_loop_new (unsigned int flags)
1480{ 1809{
1481 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1810 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1482 1811
1483 memset (loop, 0, sizeof (struct ev_loop)); 1812 memset (EV_A, 0, sizeof (struct ev_loop));
1484
1485 loop_init (EV_A_ flags); 1813 loop_init (EV_A_ flags);
1486 1814
1487 if (ev_backend (EV_A)) 1815 if (ev_backend (EV_A))
1488 return loop; 1816 return EV_A;
1489 1817
1490 return 0; 1818 return 0;
1491} 1819}
1492 1820
1493void 1821void
… …
1500void 1828void
1501ev_loop_fork (EV_P) 1829ev_loop_fork (EV_P)
1502{ 1830{
1503 postfork = 1; /* must be in line with ev_default_fork */ 1831 postfork = 1; /* must be in line with ev_default_fork */
1504} 1832}
1833#endif /* multiplicity */
1505 1834
1506#if EV_VERIFY 1835#if EV_VERIFY
1507static void noinline 1836static void noinline
1508verify_watcher (EV_P_ W w) 1837verify_watcher (EV_P_ W w)
1509{ 1838{
1510 assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 1839 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1511 1840
1512 if (w->pending) 1841 if (w->pending)
1513 assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 1842 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1514} 1843}
1515 1844
1516static void noinline 1845static void noinline
1517verify_heap (EV_P_ ANHE *heap, int N) 1846verify_heap (EV_P_ ANHE *heap, int N)
1518{ 1847{
1519 int i; 1848 int i;
1520 1849
1521 for (i = HEAP0; i < N + HEAP0; ++i) 1850 for (i = HEAP0; i < N + HEAP0; ++i)
1522 { 1851 {
1523 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); 1852 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1524 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); 1853 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1525 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); 1854 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1526 1855
1527 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 1856 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1528 } 1857 }
1529} 1858}
1530 1859
1531static void noinline 1860static void noinline
1532array_verify (EV_P_ W *ws, int cnt) 1861array_verify (EV_P_ W *ws, int cnt)
1533{ 1862{
1534 while (cnt--) 1863 while (cnt--)
1535 { 1864 {
1536 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 1865 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1537 verify_watcher (EV_A_ ws [cnt]); 1866 verify_watcher (EV_A_ ws [cnt]);
1538 } 1867 }
1539} 1868}
1540#endif 1869#endif
1541 1870
1871#if EV_FEATURE_API
1542void 1872void
1543ev_loop_verify (EV_P) 1873ev_loop_verify (EV_P)
1544{ 1874{
1545#if EV_VERIFY 1875#if EV_VERIFY
1546 int i; 1876 int i;
… …
1548 1878
1549 assert (activecnt >= -1); 1879 assert (activecnt >= -1);
1550 1880
1551 assert (fdchangemax >= fdchangecnt); 1881 assert (fdchangemax >= fdchangecnt);
1552 for (i = 0; i < fdchangecnt; ++i) 1882 for (i = 0; i < fdchangecnt; ++i)
1553 assert (("negative fd in fdchanges", fdchanges [i] >= 0)); 1883 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1554 1884
1555 assert (anfdmax >= 0); 1885 assert (anfdmax >= 0);
1556 for (i = 0; i < anfdmax; ++i) 1886 for (i = 0; i < anfdmax; ++i)
1557 for (w = anfds [i].head; w; w = w->next) 1887 for (w = anfds [i].head; w; w = w->next)
1558 { 1888 {
1559 verify_watcher (EV_A_ (W)w); 1889 verify_watcher (EV_A_ (W)w);
1560 assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); 1890 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1561 assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 1891 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1562 } 1892 }
1563 1893
1564 assert (timermax >= timercnt); 1894 assert (timermax >= timercnt);
1565 verify_heap (EV_A_ timers, timercnt); 1895 verify_heap (EV_A_ timers, timercnt);
1566 1896
… …
1587#if EV_ASYNC_ENABLE 1917#if EV_ASYNC_ENABLE
1588 assert (asyncmax >= asynccnt); 1918 assert (asyncmax >= asynccnt);
1589 array_verify (EV_A_ (W *)asyncs, asynccnt); 1919 array_verify (EV_A_ (W *)asyncs, asynccnt);
1590#endif 1920#endif
1591 1921
1922#if EV_PREPARE_ENABLE
1592 assert (preparemax >= preparecnt); 1923 assert (preparemax >= preparecnt);
1593 array_verify (EV_A_ (W *)prepares, preparecnt); 1924 array_verify (EV_A_ (W *)prepares, preparecnt);
1925#endif
1594 1926
1927#if EV_CHECK_ENABLE
1595 assert (checkmax >= checkcnt); 1928 assert (checkmax >= checkcnt);
1596 array_verify (EV_A_ (W *)checks, checkcnt); 1929 array_verify (EV_A_ (W *)checks, checkcnt);
1930#endif
1597 1931
1598# if 0 1932# if 0
1933#if EV_CHILD_ENABLE
1599 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1934 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1600 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 1935 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1601# endif 1936#endif
1602#endif 1937# endif
1938#endif
1603} 1939}
1604 1940#endif
1605#endif /* multiplicity */
1606 1941
1607#if EV_MULTIPLICITY 1942#if EV_MULTIPLICITY
1608struct ev_loop * 1943struct ev_loop *
1609ev_default_loop_init (unsigned int flags) 1944ev_default_loop_init (unsigned int flags)
1610#else 1945#else
… …
1613#endif 1948#endif
1614{ 1949{
1615 if (!ev_default_loop_ptr) 1950 if (!ev_default_loop_ptr)
1616 { 1951 {
1617#if EV_MULTIPLICITY 1952#if EV_MULTIPLICITY
1618 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1953 EV_P = ev_default_loop_ptr = &default_loop_struct;
1619#else 1954#else
1620 ev_default_loop_ptr = 1; 1955 ev_default_loop_ptr = 1;
1621#endif 1956#endif
1622 1957
1623 loop_init (EV_A_ flags); 1958 loop_init (EV_A_ flags);
1624 1959
1625 if (ev_backend (EV_A)) 1960 if (ev_backend (EV_A))
1626 { 1961 {
1627#ifndef _WIN32 1962#if EV_CHILD_ENABLE
1628 ev_signal_init (&childev, childcb, SIGCHLD); 1963 ev_signal_init (&childev, childcb, SIGCHLD);
1629 ev_set_priority (&childev, EV_MAXPRI); 1964 ev_set_priority (&childev, EV_MAXPRI);
1630 ev_signal_start (EV_A_ &childev); 1965 ev_signal_start (EV_A_ &childev);
1631 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1966 ev_unref (EV_A); /* child watcher should not keep loop alive */
1632#endif 1967#endif
… …
1640 1975
1641void 1976void
1642ev_default_destroy (void) 1977ev_default_destroy (void)
1643{ 1978{
1644#if EV_MULTIPLICITY 1979#if EV_MULTIPLICITY
1645 struct ev_loop *loop = ev_default_loop_ptr; 1980 EV_P = ev_default_loop_ptr;
1646#endif 1981#endif
1647 1982
1648 ev_default_loop_ptr = 0; 1983 ev_default_loop_ptr = 0;
1649 1984
1650#ifndef _WIN32 1985#if EV_CHILD_ENABLE
1651 ev_ref (EV_A); /* child watcher */ 1986 ev_ref (EV_A); /* child watcher */
1652 ev_signal_stop (EV_A_ &childev); 1987 ev_signal_stop (EV_A_ &childev);
1653#endif 1988#endif
1654 1989
1655 loop_destroy (EV_A); 1990 loop_destroy (EV_A);
… …
1657 1992
1658void 1993void
1659ev_default_fork (void) 1994ev_default_fork (void)
1660{ 1995{
1661#if EV_MULTIPLICITY 1996#if EV_MULTIPLICITY
1662 struct ev_loop *loop = ev_default_loop_ptr; 1997 EV_P = ev_default_loop_ptr;
1663#endif 1998#endif
1664 1999
1665 postfork = 1; /* must be in line with ev_loop_fork */ 2000 postfork = 1; /* must be in line with ev_loop_fork */
1666} 2001}
1667 2002
… …
1671ev_invoke (EV_P_ void *w, int revents) 2006ev_invoke (EV_P_ void *w, int revents)
1672{ 2007{
1673 EV_CB_INVOKE ((W)w, revents); 2008 EV_CB_INVOKE ((W)w, revents);
1674} 2009}
1675 2010
1676void inline_speed 2011unsigned int
1677call_pending (EV_P) 2012ev_pending_count (EV_P)
2013{
2014 int pri;
2015 unsigned int count = 0;
2016
2017 for (pri = NUMPRI; pri--; )
2018 count += pendingcnt [pri];
2019
2020 return count;
2021}
2022
2023void noinline
2024ev_invoke_pending (EV_P)
1678{ 2025{
1679 int pri; 2026 int pri;
1680 2027
1681 for (pri = NUMPRI; pri--; ) 2028 for (pri = NUMPRI; pri--; )
1682 while (pendingcnt [pri]) 2029 while (pendingcnt [pri])
1683 { 2030 {
1684 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2031 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1685 2032
1686 if (expect_true (p->w))
1687 {
1688 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 2033 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2034 /* ^ this is no longer true, as pending_w could be here */
1689 2035
1690 p->w->pending = 0; 2036 p->w->pending = 0;
1691 EV_CB_INVOKE (p->w, p->events); 2037 EV_CB_INVOKE (p->w, p->events);
1692 EV_FREQUENT_CHECK; 2038 EV_FREQUENT_CHECK;
1693 }
1694 } 2039 }
1695} 2040}
1696 2041
1697#if EV_IDLE_ENABLE 2042#if EV_IDLE_ENABLE
1698void inline_size 2043/* make idle watchers pending. this handles the "call-idle */
2044/* only when higher priorities are idle" logic */
2045inline_size void
1699idle_reify (EV_P) 2046idle_reify (EV_P)
1700{ 2047{
1701 if (expect_false (idleall)) 2048 if (expect_false (idleall))
1702 { 2049 {
1703 int pri; 2050 int pri;
… …
1715 } 2062 }
1716 } 2063 }
1717} 2064}
1718#endif 2065#endif
1719 2066
1720void inline_size 2067/* make timers pending */
2068inline_size void
1721timers_reify (EV_P) 2069timers_reify (EV_P)
1722{ 2070{
1723 EV_FREQUENT_CHECK; 2071 EV_FREQUENT_CHECK;
1724 2072
1725 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) 2073 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1726 { 2074 {
1727 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); 2075 do
1728
1729 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1730
1731 /* first reschedule or stop timer */
1732 if (w->repeat)
1733 { 2076 {
2077 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2078
2079 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2080
2081 /* first reschedule or stop timer */
2082 if (w->repeat)
2083 {
1734 ev_at (w) += w->repeat; 2084 ev_at (w) += w->repeat;
1735 if (ev_at (w) < mn_now) 2085 if (ev_at (w) < mn_now)
1736 ev_at (w) = mn_now; 2086 ev_at (w) = mn_now;
1737 2087
1738 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 2088 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1739 2089
1740 ANHE_at_cache (timers [HEAP0]); 2090 ANHE_at_cache (timers [HEAP0]);
1741 downheap (timers, timercnt, HEAP0); 2091 downheap (timers, timercnt, HEAP0);
2092 }
2093 else
2094 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2095
2096 EV_FREQUENT_CHECK;
2097 feed_reverse (EV_A_ (W)w);
1742 } 2098 }
1743 else 2099 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1744 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1745 2100
1746 EV_FREQUENT_CHECK;
1747 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 2101 feed_reverse_done (EV_A_ EV_TIMEOUT);
1748 } 2102 }
1749} 2103}
1750 2104
1751#if EV_PERIODIC_ENABLE 2105#if EV_PERIODIC_ENABLE
1752void inline_size 2106/* make periodics pending */
2107inline_size void
1753periodics_reify (EV_P) 2108periodics_reify (EV_P)
1754{ 2109{
1755 EV_FREQUENT_CHECK; 2110 EV_FREQUENT_CHECK;
1756 2111
1757 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2112 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1758 { 2113 {
1759 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2114 int feed_count = 0;
1760 2115
1761 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 2116 do
1762
1763 /* first reschedule or stop timer */
1764 if (w->reschedule_cb)
1765 { 2117 {
2118 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2119
2120 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2121
2122 /* first reschedule or stop timer */
2123 if (w->reschedule_cb)
2124 {
1766 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2125 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1767 2126
1768 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); 2127 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1769 2128
1770 ANHE_at_cache (periodics [HEAP0]); 2129 ANHE_at_cache (periodics [HEAP0]);
1771 downheap (periodics, periodiccnt, HEAP0); 2130 downheap (periodics, periodiccnt, HEAP0);
2131 }
2132 else if (w->interval)
2133 {
2134 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2135 /* if next trigger time is not sufficiently in the future, put it there */
2136 /* this might happen because of floating point inexactness */
2137 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2138 {
2139 ev_at (w) += w->interval;
2140
2141 /* if interval is unreasonably low we might still have a time in the past */
2142 /* so correct this. this will make the periodic very inexact, but the user */
2143 /* has effectively asked to get triggered more often than possible */
2144 if (ev_at (w) < ev_rt_now)
2145 ev_at (w) = ev_rt_now;
2146 }
2147
2148 ANHE_at_cache (periodics [HEAP0]);
2149 downheap (periodics, periodiccnt, HEAP0);
2150 }
2151 else
2152 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2153
2154 EV_FREQUENT_CHECK;
2155 feed_reverse (EV_A_ (W)w);
1772 } 2156 }
1773 else if (w->interval) 2157 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1774 {
1775 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1776 /* if next trigger time is not sufficiently in the future, put it there */
1777 /* this might happen because of floating point inexactness */
1778 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1779 {
1780 ev_at (w) += w->interval;
1781 2158
1782 /* if interval is unreasonably low we might still have a time in the past */
1783 /* so correct this. this will make the periodic very inexact, but the user */
1784 /* has effectively asked to get triggered more often than possible */
1785 if (ev_at (w) < ev_rt_now)
1786 ev_at (w) = ev_rt_now;
1787 }
1788
1789 ANHE_at_cache (periodics [HEAP0]);
1790 downheap (periodics, periodiccnt, HEAP0);
1791 }
1792 else
1793 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1794
1795 EV_FREQUENT_CHECK;
1796 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 2159 feed_reverse_done (EV_A_ EV_PERIODIC);
1797 } 2160 }
1798} 2161}
1799 2162
2163/* simply recalculate all periodics */
2164/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1800static void noinline 2165static void noinline
1801periodics_reschedule (EV_P) 2166periodics_reschedule (EV_P)
1802{ 2167{
1803 int i; 2168 int i;
1804 2169
… …
1817 2182
1818 reheap (periodics, periodiccnt); 2183 reheap (periodics, periodiccnt);
1819} 2184}
1820#endif 2185#endif
1821 2186
1822void inline_speed 2187/* adjust all timers by a given offset */
2188static void noinline
2189timers_reschedule (EV_P_ ev_tstamp adjust)
2190{
2191 int i;
2192
2193 for (i = 0; i < timercnt; ++i)
2194 {
2195 ANHE *he = timers + i + HEAP0;
2196 ANHE_w (*he)->at += adjust;
2197 ANHE_at_cache (*he);
2198 }
2199}
2200
2201/* fetch new monotonic and realtime times from the kernel */
2202/* also detect if there was a timejump, and act accordingly */
2203inline_speed void
1823time_update (EV_P_ ev_tstamp max_block) 2204time_update (EV_P_ ev_tstamp max_block)
1824{ 2205{
1825 int i;
1826
1827#if EV_USE_MONOTONIC 2206#if EV_USE_MONOTONIC
1828 if (expect_true (have_monotonic)) 2207 if (expect_true (have_monotonic))
1829 { 2208 {
2209 int i;
1830 ev_tstamp odiff = rtmn_diff; 2210 ev_tstamp odiff = rtmn_diff;
1831 2211
1832 mn_now = get_clock (); 2212 mn_now = get_clock ();
1833 2213
1834 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2214 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1860 ev_rt_now = ev_time (); 2240 ev_rt_now = ev_time ();
1861 mn_now = get_clock (); 2241 mn_now = get_clock ();
1862 now_floor = mn_now; 2242 now_floor = mn_now;
1863 } 2243 }
1864 2244
2245 /* no timer adjustment, as the monotonic clock doesn't jump */
2246 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1865# if EV_PERIODIC_ENABLE 2247# if EV_PERIODIC_ENABLE
1866 periodics_reschedule (EV_A); 2248 periodics_reschedule (EV_A);
1867# endif 2249# endif
1868 /* no timer adjustment, as the monotonic clock doesn't jump */
1869 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1870 } 2250 }
1871 else 2251 else
1872#endif 2252#endif
1873 { 2253 {
1874 ev_rt_now = ev_time (); 2254 ev_rt_now = ev_time ();
1875 2255
1876 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2256 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1877 { 2257 {
2258 /* adjust timers. this is easy, as the offset is the same for all of them */
2259 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1878#if EV_PERIODIC_ENABLE 2260#if EV_PERIODIC_ENABLE
1879 periodics_reschedule (EV_A); 2261 periodics_reschedule (EV_A);
1880#endif 2262#endif
1881 /* adjust timers. this is easy, as the offset is the same for all of them */
1882 for (i = 0; i < timercnt; ++i)
1883 {
1884 ANHE *he = timers + i + HEAP0;
1885 ANHE_w (*he)->at += ev_rt_now - mn_now;
1886 ANHE_at_cache (*he);
1887 }
1888 } 2263 }
1889 2264
1890 mn_now = ev_rt_now; 2265 mn_now = ev_rt_now;
1891 } 2266 }
1892} 2267}
1893 2268
1894void 2269void
1895ev_ref (EV_P)
1896{
1897 ++activecnt;
1898}
1899
1900void
1901ev_unref (EV_P)
1902{
1903 --activecnt;
1904}
1905
1906void
1907ev_now_update (EV_P)
1908{
1909 time_update (EV_A_ 1e100);
1910}
1911
1912static int loop_done;
1913
1914void
1915ev_loop (EV_P_ int flags) 2270ev_loop (EV_P_ int flags)
1916{ 2271{
2272#if EV_FEATURE_API
2273 ++loop_depth;
2274#endif
2275
2276 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2277
1917 loop_done = EVUNLOOP_CANCEL; 2278 loop_done = EVUNLOOP_CANCEL;
1918 2279
1919 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2280 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1920 2281
1921 do 2282 do
1922 { 2283 {
1923#if EV_VERIFY >= 2 2284#if EV_VERIFY >= 2
1924 ev_loop_verify (EV_A); 2285 ev_loop_verify (EV_A);
… …
1937 /* we might have forked, so queue fork handlers */ 2298 /* we might have forked, so queue fork handlers */
1938 if (expect_false (postfork)) 2299 if (expect_false (postfork))
1939 if (forkcnt) 2300 if (forkcnt)
1940 { 2301 {
1941 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2302 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1942 call_pending (EV_A); 2303 EV_INVOKE_PENDING;
1943 } 2304 }
1944#endif 2305#endif
1945 2306
2307#if EV_PREPARE_ENABLE
1946 /* queue prepare watchers (and execute them) */ 2308 /* queue prepare watchers (and execute them) */
1947 if (expect_false (preparecnt)) 2309 if (expect_false (preparecnt))
1948 { 2310 {
1949 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2311 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1950 call_pending (EV_A); 2312 EV_INVOKE_PENDING;
1951 } 2313 }
2314#endif
1952 2315
1953 if (expect_false (!activecnt)) 2316 if (expect_false (loop_done))
1954 break; 2317 break;
1955 2318
1956 /* we might have forked, so reify kernel state if necessary */ 2319 /* we might have forked, so reify kernel state if necessary */
1957 if (expect_false (postfork)) 2320 if (expect_false (postfork))
1958 loop_fork (EV_A); 2321 loop_fork (EV_A);
… …
1965 ev_tstamp waittime = 0.; 2328 ev_tstamp waittime = 0.;
1966 ev_tstamp sleeptime = 0.; 2329 ev_tstamp sleeptime = 0.;
1967 2330
1968 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2331 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1969 { 2332 {
2333 /* remember old timestamp for io_blocktime calculation */
2334 ev_tstamp prev_mn_now = mn_now;
2335
1970 /* update time to cancel out callback processing overhead */ 2336 /* update time to cancel out callback processing overhead */
1971 time_update (EV_A_ 1e100); 2337 time_update (EV_A_ 1e100);
1972 2338
1973 waittime = MAX_BLOCKTIME; 2339 waittime = MAX_BLOCKTIME;
1974 2340
… …
1984 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2350 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1985 if (waittime > to) waittime = to; 2351 if (waittime > to) waittime = to;
1986 } 2352 }
1987#endif 2353#endif
1988 2354
2355 /* don't let timeouts decrease the waittime below timeout_blocktime */
1989 if (expect_false (waittime < timeout_blocktime)) 2356 if (expect_false (waittime < timeout_blocktime))
1990 waittime = timeout_blocktime; 2357 waittime = timeout_blocktime;
1991 2358
1992 sleeptime = waittime - backend_fudge; 2359 /* extra check because io_blocktime is commonly 0 */
1993
1994 if (expect_true (sleeptime > io_blocktime)) 2360 if (expect_false (io_blocktime))
1995 sleeptime = io_blocktime;
1996
1997 if (sleeptime)
1998 { 2361 {
2362 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2363
2364 if (sleeptime > waittime - backend_fudge)
2365 sleeptime = waittime - backend_fudge;
2366
2367 if (expect_true (sleeptime > 0.))
2368 {
1999 ev_sleep (sleeptime); 2369 ev_sleep (sleeptime);
2000 waittime -= sleeptime; 2370 waittime -= sleeptime;
2371 }
2001 } 2372 }
2002 } 2373 }
2003 2374
2375#if EV_FEATURE_API
2004 ++loop_count; 2376 ++loop_count;
2377#endif
2378 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2005 backend_poll (EV_A_ waittime); 2379 backend_poll (EV_A_ waittime);
2380 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2006 2381
2007 /* update ev_rt_now, do magic */ 2382 /* update ev_rt_now, do magic */
2008 time_update (EV_A_ waittime + sleeptime); 2383 time_update (EV_A_ waittime + sleeptime);
2009 } 2384 }
2010 2385
… …
2017#if EV_IDLE_ENABLE 2392#if EV_IDLE_ENABLE
2018 /* queue idle watchers unless other events are pending */ 2393 /* queue idle watchers unless other events are pending */
2019 idle_reify (EV_A); 2394 idle_reify (EV_A);
2020#endif 2395#endif
2021 2396
2397#if EV_CHECK_ENABLE
2022 /* queue check watchers, to be executed first */ 2398 /* queue check watchers, to be executed first */
2023 if (expect_false (checkcnt)) 2399 if (expect_false (checkcnt))
2024 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2400 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2401#endif
2025 2402
2026 call_pending (EV_A); 2403 EV_INVOKE_PENDING;
2027 } 2404 }
2028 while (expect_true ( 2405 while (expect_true (
2029 activecnt 2406 activecnt
2030 && !loop_done 2407 && !loop_done
2031 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2408 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2032 )); 2409 ));
2033 2410
2034 if (loop_done == EVUNLOOP_ONE) 2411 if (loop_done == EVUNLOOP_ONE)
2035 loop_done = EVUNLOOP_CANCEL; 2412 loop_done = EVUNLOOP_CANCEL;
2413
2414#if EV_FEATURE_API
2415 --loop_depth;
2416#endif
2036} 2417}
2037 2418
2038void 2419void
2039ev_unloop (EV_P_ int how) 2420ev_unloop (EV_P_ int how)
2040{ 2421{
2041 loop_done = how; 2422 loop_done = how;
2042} 2423}
2043 2424
2425void
2426ev_ref (EV_P)
2427{
2428 ++activecnt;
2429}
2430
2431void
2432ev_unref (EV_P)
2433{
2434 --activecnt;
2435}
2436
2437void
2438ev_now_update (EV_P)
2439{
2440 time_update (EV_A_ 1e100);
2441}
2442
2443void
2444ev_suspend (EV_P)
2445{
2446 ev_now_update (EV_A);
2447}
2448
2449void
2450ev_resume (EV_P)
2451{
2452 ev_tstamp mn_prev = mn_now;
2453
2454 ev_now_update (EV_A);
2455 timers_reschedule (EV_A_ mn_now - mn_prev);
2456#if EV_PERIODIC_ENABLE
2457 /* TODO: really do this? */
2458 periodics_reschedule (EV_A);
2459#endif
2460}
2461
2044/*****************************************************************************/ 2462/*****************************************************************************/
2463/* singly-linked list management, used when the expected list length is short */
2045 2464
2046void inline_size 2465inline_size void
2047wlist_add (WL *head, WL elem) 2466wlist_add (WL *head, WL elem)
2048{ 2467{
2049 elem->next = *head; 2468 elem->next = *head;
2050 *head = elem; 2469 *head = elem;
2051} 2470}
2052 2471
2053void inline_size 2472inline_size void
2054wlist_del (WL *head, WL elem) 2473wlist_del (WL *head, WL elem)
2055{ 2474{
2056 while (*head) 2475 while (*head)
2057 { 2476 {
2058 if (*head == elem) 2477 if (expect_true (*head == elem))
2059 { 2478 {
2060 *head = elem->next; 2479 *head = elem->next;
2061 return; 2480 break;
2062 } 2481 }
2063 2482
2064 head = &(*head)->next; 2483 head = &(*head)->next;
2065 } 2484 }
2066} 2485}
2067 2486
2068void inline_speed 2487/* internal, faster, version of ev_clear_pending */
2488inline_speed void
2069clear_pending (EV_P_ W w) 2489clear_pending (EV_P_ W w)
2070{ 2490{
2071 if (w->pending) 2491 if (w->pending)
2072 { 2492 {
2073 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2493 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2074 w->pending = 0; 2494 w->pending = 0;
2075 } 2495 }
2076} 2496}
2077 2497
2078int 2498int
… …
2082 int pending = w_->pending; 2502 int pending = w_->pending;
2083 2503
2084 if (expect_true (pending)) 2504 if (expect_true (pending))
2085 { 2505 {
2086 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2506 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2507 p->w = (W)&pending_w;
2087 w_->pending = 0; 2508 w_->pending = 0;
2088 p->w = 0;
2089 return p->events; 2509 return p->events;
2090 } 2510 }
2091 else 2511 else
2092 return 0; 2512 return 0;
2093} 2513}
2094 2514
2095void inline_size 2515inline_size void
2096pri_adjust (EV_P_ W w) 2516pri_adjust (EV_P_ W w)
2097{ 2517{
2098 int pri = w->priority; 2518 int pri = ev_priority (w);
2099 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2519 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2100 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2520 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2101 w->priority = pri; 2521 ev_set_priority (w, pri);
2102} 2522}
2103 2523
2104void inline_speed 2524inline_speed void
2105ev_start (EV_P_ W w, int active) 2525ev_start (EV_P_ W w, int active)
2106{ 2526{
2107 pri_adjust (EV_A_ w); 2527 pri_adjust (EV_A_ w);
2108 w->active = active; 2528 w->active = active;
2109 ev_ref (EV_A); 2529 ev_ref (EV_A);
2110} 2530}
2111 2531
2112void inline_size 2532inline_size void
2113ev_stop (EV_P_ W w) 2533ev_stop (EV_P_ W w)
2114{ 2534{
2115 ev_unref (EV_A); 2535 ev_unref (EV_A);
2116 w->active = 0; 2536 w->active = 0;
2117} 2537}
… …
2124 int fd = w->fd; 2544 int fd = w->fd;
2125 2545
2126 if (expect_false (ev_is_active (w))) 2546 if (expect_false (ev_is_active (w)))
2127 return; 2547 return;
2128 2548
2129 assert (("ev_io_start called with negative fd", fd >= 0)); 2549 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2130 assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); 2550 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2131 2551
2132 EV_FREQUENT_CHECK; 2552 EV_FREQUENT_CHECK;
2133 2553
2134 ev_start (EV_A_ (W)w, 1); 2554 ev_start (EV_A_ (W)w, 1);
2135 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2555 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2136 wlist_add (&anfds[fd].head, (WL)w); 2556 wlist_add (&anfds[fd].head, (WL)w);
2137 2557
2138 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2558 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2139 w->events &= ~EV_IOFDSET; 2559 w->events &= ~EV__IOFDSET;
2140 2560
2141 EV_FREQUENT_CHECK; 2561 EV_FREQUENT_CHECK;
2142} 2562}
2143 2563
2144void noinline 2564void noinline
… …
2146{ 2566{
2147 clear_pending (EV_A_ (W)w); 2567 clear_pending (EV_A_ (W)w);
2148 if (expect_false (!ev_is_active (w))) 2568 if (expect_false (!ev_is_active (w)))
2149 return; 2569 return;
2150 2570
2151 assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2571 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2152 2572
2153 EV_FREQUENT_CHECK; 2573 EV_FREQUENT_CHECK;
2154 2574
2155 wlist_del (&anfds[w->fd].head, (WL)w); 2575 wlist_del (&anfds[w->fd].head, (WL)w);
2156 ev_stop (EV_A_ (W)w); 2576 ev_stop (EV_A_ (W)w);
… …
2166 if (expect_false (ev_is_active (w))) 2586 if (expect_false (ev_is_active (w)))
2167 return; 2587 return;
2168 2588
2169 ev_at (w) += mn_now; 2589 ev_at (w) += mn_now;
2170 2590
2171 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2591 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2172 2592
2173 EV_FREQUENT_CHECK; 2593 EV_FREQUENT_CHECK;
2174 2594
2175 ++timercnt; 2595 ++timercnt;
2176 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 2596 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
… …
2179 ANHE_at_cache (timers [ev_active (w)]); 2599 ANHE_at_cache (timers [ev_active (w)]);
2180 upheap (timers, ev_active (w)); 2600 upheap (timers, ev_active (w));
2181 2601
2182 EV_FREQUENT_CHECK; 2602 EV_FREQUENT_CHECK;
2183 2603
2184 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 2604 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2185} 2605}
2186 2606
2187void noinline 2607void noinline
2188ev_timer_stop (EV_P_ ev_timer *w) 2608ev_timer_stop (EV_P_ ev_timer *w)
2189{ 2609{
… …
2194 EV_FREQUENT_CHECK; 2614 EV_FREQUENT_CHECK;
2195 2615
2196 { 2616 {
2197 int active = ev_active (w); 2617 int active = ev_active (w);
2198 2618
2199 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 2619 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2200 2620
2201 --timercnt; 2621 --timercnt;
2202 2622
2203 if (expect_true (active < timercnt + HEAP0)) 2623 if (expect_true (active < timercnt + HEAP0))
2204 { 2624 {
2205 timers [active] = timers [timercnt + HEAP0]; 2625 timers [active] = timers [timercnt + HEAP0];
2206 adjustheap (timers, timercnt, active); 2626 adjustheap (timers, timercnt, active);
2207 } 2627 }
2208 } 2628 }
2209 2629
2210 EV_FREQUENT_CHECK;
2211
2212 ev_at (w) -= mn_now; 2630 ev_at (w) -= mn_now;
2213 2631
2214 ev_stop (EV_A_ (W)w); 2632 ev_stop (EV_A_ (W)w);
2633
2634 EV_FREQUENT_CHECK;
2215} 2635}
2216 2636
2217void noinline 2637void noinline
2218ev_timer_again (EV_P_ ev_timer *w) 2638ev_timer_again (EV_P_ ev_timer *w)
2219{ 2639{
… …
2237 } 2657 }
2238 2658
2239 EV_FREQUENT_CHECK; 2659 EV_FREQUENT_CHECK;
2240} 2660}
2241 2661
2662ev_tstamp
2663ev_timer_remaining (EV_P_ ev_timer *w)
2664{
2665 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2666}
2667
2242#if EV_PERIODIC_ENABLE 2668#if EV_PERIODIC_ENABLE
2243void noinline 2669void noinline
2244ev_periodic_start (EV_P_ ev_periodic *w) 2670ev_periodic_start (EV_P_ ev_periodic *w)
2245{ 2671{
2246 if (expect_false (ev_is_active (w))) 2672 if (expect_false (ev_is_active (w)))
… …
2248 2674
2249 if (w->reschedule_cb) 2675 if (w->reschedule_cb)
2250 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2676 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2251 else if (w->interval) 2677 else if (w->interval)
2252 { 2678 {
2253 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2679 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2254 /* this formula differs from the one in periodic_reify because we do not always round up */ 2680 /* this formula differs from the one in periodic_reify because we do not always round up */
2255 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2681 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2256 } 2682 }
2257 else 2683 else
2258 ev_at (w) = w->offset; 2684 ev_at (w) = w->offset;
… …
2266 ANHE_at_cache (periodics [ev_active (w)]); 2692 ANHE_at_cache (periodics [ev_active (w)]);
2267 upheap (periodics, ev_active (w)); 2693 upheap (periodics, ev_active (w));
2268 2694
2269 EV_FREQUENT_CHECK; 2695 EV_FREQUENT_CHECK;
2270 2696
2271 /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 2697 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2272} 2698}
2273 2699
2274void noinline 2700void noinline
2275ev_periodic_stop (EV_P_ ev_periodic *w) 2701ev_periodic_stop (EV_P_ ev_periodic *w)
2276{ 2702{
… …
2281 EV_FREQUENT_CHECK; 2707 EV_FREQUENT_CHECK;
2282 2708
2283 { 2709 {
2284 int active = ev_active (w); 2710 int active = ev_active (w);
2285 2711
2286 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 2712 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2287 2713
2288 --periodiccnt; 2714 --periodiccnt;
2289 2715
2290 if (expect_true (active < periodiccnt + HEAP0)) 2716 if (expect_true (active < periodiccnt + HEAP0))
2291 { 2717 {
2292 periodics [active] = periodics [periodiccnt + HEAP0]; 2718 periodics [active] = periodics [periodiccnt + HEAP0];
2293 adjustheap (periodics, periodiccnt, active); 2719 adjustheap (periodics, periodiccnt, active);
2294 } 2720 }
2295 } 2721 }
2296 2722
2297 EV_FREQUENT_CHECK;
2298
2299 ev_stop (EV_A_ (W)w); 2723 ev_stop (EV_A_ (W)w);
2724
2725 EV_FREQUENT_CHECK;
2300} 2726}
2301 2727
2302void noinline 2728void noinline
2303ev_periodic_again (EV_P_ ev_periodic *w) 2729ev_periodic_again (EV_P_ ev_periodic *w)
2304{ 2730{
… …
2310 2736
2311#ifndef SA_RESTART 2737#ifndef SA_RESTART
2312# define SA_RESTART 0 2738# define SA_RESTART 0
2313#endif 2739#endif
2314 2740
2741#if EV_SIGNAL_ENABLE
2742
2315void noinline 2743void noinline
2316ev_signal_start (EV_P_ ev_signal *w) 2744ev_signal_start (EV_P_ ev_signal *w)
2317{ 2745{
2318#if EV_MULTIPLICITY
2319 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2320#endif
2321 if (expect_false (ev_is_active (w))) 2746 if (expect_false (ev_is_active (w)))
2322 return; 2747 return;
2323 2748
2324 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2749 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2325 2750
2326 evpipe_init (EV_A); 2751#if EV_MULTIPLICITY
2752 assert (("libev: a signal must not be attached to two different loops",
2753 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2327 2754
2328 EV_FREQUENT_CHECK; 2755 signals [w->signum - 1].loop = EV_A;
2756#endif
2329 2757
2758 EV_FREQUENT_CHECK;
2759
2760#if EV_USE_SIGNALFD
2761 if (sigfd == -2)
2330 { 2762 {
2331#ifndef _WIN32 2763 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2332 sigset_t full, prev; 2764 if (sigfd < 0 && errno == EINVAL)
2333 sigfillset (&full); 2765 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2334 sigprocmask (SIG_SETMASK, &full, &prev);
2335#endif
2336 2766
2337 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 2767 if (sigfd >= 0)
2768 {
2769 fd_intern (sigfd); /* doing it twice will not hurt */
2338 2770
2339#ifndef _WIN32 2771 sigemptyset (&sigfd_set);
2340 sigprocmask (SIG_SETMASK, &prev, 0); 2772
2341#endif 2773 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2774 ev_set_priority (&sigfd_w, EV_MAXPRI);
2775 ev_io_start (EV_A_ &sigfd_w);
2776 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2777 }
2342 } 2778 }
2779
2780 if (sigfd >= 0)
2781 {
2782 /* TODO: check .head */
2783 sigaddset (&sigfd_set, w->signum);
2784 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2785
2786 signalfd (sigfd, &sigfd_set, 0);
2787 }
2788#endif
2343 2789
2344 ev_start (EV_A_ (W)w, 1); 2790 ev_start (EV_A_ (W)w, 1);
2345 wlist_add (&signals [w->signum - 1].head, (WL)w); 2791 wlist_add (&signals [w->signum - 1].head, (WL)w);
2346 2792
2347 if (!((WL)w)->next) 2793 if (!((WL)w)->next)
2794# if EV_USE_SIGNALFD
2795 if (sigfd < 0) /*TODO*/
2796# endif
2348 { 2797 {
2349#if _WIN32 2798# ifdef _WIN32
2799 evpipe_init (EV_A);
2800
2350 signal (w->signum, ev_sighandler); 2801 signal (w->signum, ev_sighandler);
2351#else 2802# else
2352 struct sigaction sa; 2803 struct sigaction sa;
2804
2805 evpipe_init (EV_A);
2806
2353 sa.sa_handler = ev_sighandler; 2807 sa.sa_handler = ev_sighandler;
2354 sigfillset (&sa.sa_mask); 2808 sigfillset (&sa.sa_mask);
2355 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2809 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2356 sigaction (w->signum, &sa, 0); 2810 sigaction (w->signum, &sa, 0);
2811
2812 sigemptyset (&sa.sa_mask);
2813 sigaddset (&sa.sa_mask, w->signum);
2814 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2357#endif 2815#endif
2358 } 2816 }
2359 2817
2360 EV_FREQUENT_CHECK; 2818 EV_FREQUENT_CHECK;
2361} 2819}
2362 2820
2363void noinline 2821void noinline
… …
2371 2829
2372 wlist_del (&signals [w->signum - 1].head, (WL)w); 2830 wlist_del (&signals [w->signum - 1].head, (WL)w);
2373 ev_stop (EV_A_ (W)w); 2831 ev_stop (EV_A_ (W)w);
2374 2832
2375 if (!signals [w->signum - 1].head) 2833 if (!signals [w->signum - 1].head)
2834 {
2835#if EV_MULTIPLICITY
2836 signals [w->signum - 1].loop = 0; /* unattach from signal */
2837#endif
2838#if EV_USE_SIGNALFD
2839 if (sigfd >= 0)
2840 {
2841 sigset_t ss;
2842
2843 sigemptyset (&ss);
2844 sigaddset (&ss, w->signum);
2845 sigdelset (&sigfd_set, w->signum);
2846
2847 signalfd (sigfd, &sigfd_set, 0);
2848 sigprocmask (SIG_UNBLOCK, &ss, 0);
2849 }
2850 else
2851#endif
2376 signal (w->signum, SIG_DFL); 2852 signal (w->signum, SIG_DFL);
2853 }
2377 2854
2378 EV_FREQUENT_CHECK; 2855 EV_FREQUENT_CHECK;
2379} 2856}
2857
2858#endif
2859
2860#if EV_CHILD_ENABLE
2380 2861
2381void 2862void
2382ev_child_start (EV_P_ ev_child *w) 2863ev_child_start (EV_P_ ev_child *w)
2383{ 2864{
2384#if EV_MULTIPLICITY 2865#if EV_MULTIPLICITY
2385 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2866 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2386#endif 2867#endif
2387 if (expect_false (ev_is_active (w))) 2868 if (expect_false (ev_is_active (w)))
2388 return; 2869 return;
2389 2870
2390 EV_FREQUENT_CHECK; 2871 EV_FREQUENT_CHECK;
2391 2872
2392 ev_start (EV_A_ (W)w, 1); 2873 ev_start (EV_A_ (W)w, 1);
2393 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2874 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2394 2875
2395 EV_FREQUENT_CHECK; 2876 EV_FREQUENT_CHECK;
2396} 2877}
2397 2878
2398void 2879void
… …
2402 if (expect_false (!ev_is_active (w))) 2883 if (expect_false (!ev_is_active (w)))
2403 return; 2884 return;
2404 2885
2405 EV_FREQUENT_CHECK; 2886 EV_FREQUENT_CHECK;
2406 2887
2407 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2888 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2408 ev_stop (EV_A_ (W)w); 2889 ev_stop (EV_A_ (W)w);
2409 2890
2410 EV_FREQUENT_CHECK; 2891 EV_FREQUENT_CHECK;
2411} 2892}
2893
2894#endif
2412 2895
2413#if EV_STAT_ENABLE 2896#if EV_STAT_ENABLE
2414 2897
2415# ifdef _WIN32 2898# ifdef _WIN32
2416# undef lstat 2899# undef lstat
2417# define lstat(a,b) _stati64 (a,b) 2900# define lstat(a,b) _stati64 (a,b)
2418# endif 2901# endif
2419 2902
2420#define DEF_STAT_INTERVAL 5.0074891 2903#define DEF_STAT_INTERVAL 5.0074891
2904#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2421#define MIN_STAT_INTERVAL 0.1074891 2905#define MIN_STAT_INTERVAL 0.1074891
2422 2906
2423static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2907static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2424 2908
2425#if EV_USE_INOTIFY 2909#if EV_USE_INOTIFY
2426# define EV_INOTIFY_BUFSIZE 8192 2910
2911/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
2912# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2427 2913
2428static void noinline 2914static void noinline
2429infy_add (EV_P_ ev_stat *w) 2915infy_add (EV_P_ ev_stat *w)
2430{ 2916{
2431 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); 2917 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);
2432 2918
2433 if (w->wd < 0) 2919 if (w->wd >= 0)
2920 {
2921 struct statfs sfs;
2922
2923 /* now local changes will be tracked by inotify, but remote changes won't */
2924 /* unless the filesystem is known to be local, we therefore still poll */
2925 /* also do poll on <2.6.25, but with normal frequency */
2926
2927 if (!fs_2625)
2928 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2929 else if (!statfs (w->path, &sfs)
2930 && (sfs.f_type == 0x1373 /* devfs */
2931 || sfs.f_type == 0xEF53 /* ext2/3 */
2932 || sfs.f_type == 0x3153464a /* jfs */
2933 || sfs.f_type == 0x52654973 /* reiser3 */
2934 || sfs.f_type == 0x01021994 /* tempfs */
2935 || sfs.f_type == 0x58465342 /* xfs */))
2936 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
2937 else
2938 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2434 { 2939 }
2435 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2940 else
2941 {
2942 /* can't use inotify, continue to stat */
2943 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2436 2944
2437 /* monitor some parent directory for speedup hints */ 2945 /* if path is not there, monitor some parent directory for speedup hints */
2438 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 2946 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2439 /* but an efficiency issue only */ 2947 /* but an efficiency issue only */
2440 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2948 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2441 { 2949 {
2442 char path [4096]; 2950 char path [4096];
… …
2447 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2955 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2448 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2956 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2449 2957
2450 char *pend = strrchr (path, '/'); 2958 char *pend = strrchr (path, '/');
2451 2959
2452 if (!pend) 2960 if (!pend || pend == path)
2453 break; /* whoops, no '/', complain to your admin */ 2961 break;
2454 2962
2455 *pend = 0; 2963 *pend = 0;
2456 w->wd = inotify_add_watch (fs_fd, path, mask); 2964 w->wd = inotify_add_watch (fs_fd, path, mask);
2457 } 2965 }
2458 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2966 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2459 } 2967 }
2460 } 2968 }
2461 else
2462 todo, on nfs etc., we need to poll every 60s or so
2463 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2464 2969
2465 if (w->wd >= 0) 2970 if (w->wd >= 0)
2466 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2971 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2972
2973 /* now re-arm timer, if required */
2974 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2975 ev_timer_again (EV_A_ &w->timer);
2976 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2467} 2977}
2468 2978
2469static void noinline 2979static void noinline
2470infy_del (EV_P_ ev_stat *w) 2980infy_del (EV_P_ ev_stat *w)
2471{ 2981{
… …
2474 2984
2475 if (wd < 0) 2985 if (wd < 0)
2476 return; 2986 return;
2477 2987
2478 w->wd = -2; 2988 w->wd = -2;
2479 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 2989 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2480 wlist_del (&fs_hash [slot].head, (WL)w); 2990 wlist_del (&fs_hash [slot].head, (WL)w);
2481 2991
2482 /* remove this watcher, if others are watching it, they will rearm */ 2992 /* remove this watcher, if others are watching it, they will rearm */
2483 inotify_rm_watch (fs_fd, wd); 2993 inotify_rm_watch (fs_fd, wd);
2484} 2994}
… …
2486static void noinline 2996static void noinline
2487infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2997infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2488{ 2998{
2489 if (slot < 0) 2999 if (slot < 0)
2490 /* overflow, need to check for all hash slots */ 3000 /* overflow, need to check for all hash slots */
2491 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3001 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2492 infy_wd (EV_A_ slot, wd, ev); 3002 infy_wd (EV_A_ slot, wd, ev);
2493 else 3003 else
2494 { 3004 {
2495 WL w_; 3005 WL w_;
2496 3006
2497 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3007 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2498 { 3008 {
2499 ev_stat *w = (ev_stat *)w_; 3009 ev_stat *w = (ev_stat *)w_;
2500 w_ = w_->next; /* lets us remove this watcher and all before it */ 3010 w_ = w_->next; /* lets us remove this watcher and all before it */
2501 3011
2502 if (w->wd == wd || wd == -1) 3012 if (w->wd == wd || wd == -1)
2503 { 3013 {
2504 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3014 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2505 { 3015 {
3016 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2506 w->wd = -1; 3017 w->wd = -1;
2507 infy_add (EV_A_ w); /* re-add, no matter what */ 3018 infy_add (EV_A_ w); /* re-add, no matter what */
2508 } 3019 }
2509 3020
2510 stat_timer_cb (EV_A_ &w->timer, 0); 3021 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2515 3026
2516static void 3027static void
2517infy_cb (EV_P_ ev_io *w, int revents) 3028infy_cb (EV_P_ ev_io *w, int revents)
2518{ 3029{
2519 char buf [EV_INOTIFY_BUFSIZE]; 3030 char buf [EV_INOTIFY_BUFSIZE];
2520 struct inotify_event *ev = (struct inotify_event *)buf;
2521 int ofs; 3031 int ofs;
2522 int len = read (fs_fd, buf, sizeof (buf)); 3032 int len = read (fs_fd, buf, sizeof (buf));
2523 3033
2524 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3034 for (ofs = 0; ofs < len; )
3035 {
3036 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2525 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3037 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3038 ofs += sizeof (struct inotify_event) + ev->len;
3039 }
2526} 3040}
2527 3041
2528void inline_size 3042inline_size unsigned int
2529infy_init (EV_P) 3043ev_linux_version (void)
2530{ 3044{
2531 if (fs_fd != -2) 3045 struct utsname buf;
3046 unsigned int v;
3047 int i;
3048 char *p = buf.release;
3049
3050 if (uname (&buf))
2532 return; 3051 return 0;
2533 3052
3053 for (i = 3+1; --i; )
3054 {
3055 unsigned int c = 0;
3056
3057 for (;;)
3058 {
3059 if (*p >= '0' && *p <= '9')
3060 c = c * 10 + *p++ - '0';
3061 else
3062 {
3063 p += *p == '.';
3064 break;
3065 }
3066 }
3067
3068 v = (v << 8) | c;
3069 }
3070
3071 return v;
3072}
3073
3074inline_size void
3075ev_check_2625 (EV_P)
3076{
2534 /* kernels < 2.6.25 are borked 3077 /* kernels < 2.6.25 are borked
2535 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3078 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2536 */ 3079 */
2537 { 3080 if (ev_linux_version () < 0x020619)
2538 struct utsname buf; 3081 return;
2539 int major, minor, micro;
2540 3082
3083 fs_2625 = 1;
3084}
3085
3086inline_size int
3087infy_newfd (void)
3088{
3089#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3090 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3091 if (fd >= 0)
3092 return fd;
3093#endif
3094 return inotify_init ();
3095}
3096
3097inline_size void
3098infy_init (EV_P)
3099{
3100 if (fs_fd != -2)
3101 return;
3102
2541 fs_fd = -1; 3103 fs_fd = -1;
2542 3104
2543 if (uname (&buf)) 3105 ev_check_2625 (EV_A);
2544 return;
2545 3106
2546 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2547 return;
2548
2549 if (major < 2
2550 || (major == 2 && minor < 6)
2551 || (major == 2 && minor == 6 && micro < 25))
2552 return;
2553 }
2554
2555 fs_fd = inotify_init (); 3107 fs_fd = infy_newfd ();
2556 3108
2557 if (fs_fd >= 0) 3109 if (fs_fd >= 0)
2558 { 3110 {
3111 fd_intern (fs_fd);
2559 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3112 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2560 ev_set_priority (&fs_w, EV_MAXPRI); 3113 ev_set_priority (&fs_w, EV_MAXPRI);
2561 ev_io_start (EV_A_ &fs_w); 3114 ev_io_start (EV_A_ &fs_w);
3115 ev_unref (EV_A);
2562 } 3116 }
2563} 3117}
2564 3118
2565void inline_size 3119inline_size void
2566infy_fork (EV_P) 3120infy_fork (EV_P)
2567{ 3121{
2568 int slot; 3122 int slot;
2569 3123
2570 if (fs_fd < 0) 3124 if (fs_fd < 0)
2571 return; 3125 return;
2572 3126
3127 ev_ref (EV_A);
3128 ev_io_stop (EV_A_ &fs_w);
2573 close (fs_fd); 3129 close (fs_fd);
2574 fs_fd = inotify_init (); 3130 fs_fd = infy_newfd ();
2575 3131
3132 if (fs_fd >= 0)
3133 {
3134 fd_intern (fs_fd);
3135 ev_io_set (&fs_w, fs_fd, EV_READ);
3136 ev_io_start (EV_A_ &fs_w);
3137 ev_unref (EV_A);
3138 }
3139
2576 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3140 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2577 { 3141 {
2578 WL w_ = fs_hash [slot].head; 3142 WL w_ = fs_hash [slot].head;
2579 fs_hash [slot].head = 0; 3143 fs_hash [slot].head = 0;
2580 3144
2581 while (w_) 3145 while (w_)
… …
2586 w->wd = -1; 3150 w->wd = -1;
2587 3151
2588 if (fs_fd >= 0) 3152 if (fs_fd >= 0)
2589 infy_add (EV_A_ w); /* re-add, no matter what */ 3153 infy_add (EV_A_ w); /* re-add, no matter what */
2590 else 3154 else
3155 {
3156 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3157 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2591 ev_timer_start (EV_A_ &w->timer); 3158 ev_timer_again (EV_A_ &w->timer);
3159 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3160 }
2592 } 3161 }
2593 } 3162 }
2594} 3163}
2595 3164
2596#endif 3165#endif
… …
2613static void noinline 3182static void noinline
2614stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3183stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2615{ 3184{
2616 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3185 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2617 3186
2618 /* we copy this here each the time so that */ 3187 ev_statdata prev = w->attr;
2619 /* prev has the old value when the callback gets invoked */
2620 w->prev = w->attr;
2621 ev_stat_stat (EV_A_ w); 3188 ev_stat_stat (EV_A_ w);
2622 3189
2623 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3190 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2624 if ( 3191 if (
2625 w->prev.st_dev != w->attr.st_dev 3192 prev.st_dev != w->attr.st_dev
2626 || w->prev.st_ino != w->attr.st_ino 3193 || prev.st_ino != w->attr.st_ino
2627 || w->prev.st_mode != w->attr.st_mode 3194 || prev.st_mode != w->attr.st_mode
2628 || w->prev.st_nlink != w->attr.st_nlink 3195 || prev.st_nlink != w->attr.st_nlink
2629 || w->prev.st_uid != w->attr.st_uid 3196 || prev.st_uid != w->attr.st_uid
2630 || w->prev.st_gid != w->attr.st_gid 3197 || prev.st_gid != w->attr.st_gid
2631 || w->prev.st_rdev != w->attr.st_rdev 3198 || prev.st_rdev != w->attr.st_rdev
2632 || w->prev.st_size != w->attr.st_size 3199 || prev.st_size != w->attr.st_size
2633 || w->prev.st_atime != w->attr.st_atime 3200 || prev.st_atime != w->attr.st_atime
2634 || w->prev.st_mtime != w->attr.st_mtime 3201 || prev.st_mtime != w->attr.st_mtime
2635 || w->prev.st_ctime != w->attr.st_ctime 3202 || prev.st_ctime != w->attr.st_ctime
2636 ) { 3203 ) {
3204 /* we only update w->prev on actual differences */
3205 /* in case we test more often than invoke the callback, */
3206 /* to ensure that prev is always different to attr */
3207 w->prev = prev;
3208
2637 #if EV_USE_INOTIFY 3209 #if EV_USE_INOTIFY
2638 if (fs_fd >= 0) 3210 if (fs_fd >= 0)
2639 { 3211 {
2640 infy_del (EV_A_ w); 3212 infy_del (EV_A_ w);
2641 infy_add (EV_A_ w); 3213 infy_add (EV_A_ w);
… …
2651ev_stat_start (EV_P_ ev_stat *w) 3223ev_stat_start (EV_P_ ev_stat *w)
2652{ 3224{
2653 if (expect_false (ev_is_active (w))) 3225 if (expect_false (ev_is_active (w)))
2654 return; 3226 return;
2655 3227
2656 /* since we use memcmp, we need to clear any padding data etc. */
2657 memset (&w->prev, 0, sizeof (ev_statdata));
2658 memset (&w->attr, 0, sizeof (ev_statdata));
2659
2660 ev_stat_stat (EV_A_ w); 3228 ev_stat_stat (EV_A_ w);
2661 3229
3230 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2662 if (w->interval < MIN_STAT_INTERVAL) 3231 w->interval = MIN_STAT_INTERVAL;
2663 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2664 3232
2665 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 3233 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2666 ev_set_priority (&w->timer, ev_priority (w)); 3234 ev_set_priority (&w->timer, ev_priority (w));
2667 3235
2668#if EV_USE_INOTIFY 3236#if EV_USE_INOTIFY
2669 infy_init (EV_A); 3237 infy_init (EV_A);
2670 3238
2671 if (fs_fd >= 0) 3239 if (fs_fd >= 0)
2672 infy_add (EV_A_ w); 3240 infy_add (EV_A_ w);
2673 else 3241 else
2674#endif 3242#endif
3243 {
2675 ev_timer_start (EV_A_ &w->timer); 3244 ev_timer_again (EV_A_ &w->timer);
3245 ev_unref (EV_A);
3246 }
2676 3247
2677 ev_start (EV_A_ (W)w, 1); 3248 ev_start (EV_A_ (W)w, 1);
2678 3249
2679 EV_FREQUENT_CHECK; 3250 EV_FREQUENT_CHECK;
2680} 3251}
… …
2689 EV_FREQUENT_CHECK; 3260 EV_FREQUENT_CHECK;
2690 3261
2691#if EV_USE_INOTIFY 3262#if EV_USE_INOTIFY
2692 infy_del (EV_A_ w); 3263 infy_del (EV_A_ w);
2693#endif 3264#endif
3265
3266 if (ev_is_active (&w->timer))
3267 {
3268 ev_ref (EV_A);
2694 ev_timer_stop (EV_A_ &w->timer); 3269 ev_timer_stop (EV_A_ &w->timer);
3270 }
2695 3271
2696 ev_stop (EV_A_ (W)w); 3272 ev_stop (EV_A_ (W)w);
2697 3273
2698 EV_FREQUENT_CHECK; 3274 EV_FREQUENT_CHECK;
2699} 3275}
… …
2744 3320
2745 EV_FREQUENT_CHECK; 3321 EV_FREQUENT_CHECK;
2746} 3322}
2747#endif 3323#endif
2748 3324
3325#if EV_PREPARE_ENABLE
2749void 3326void
2750ev_prepare_start (EV_P_ ev_prepare *w) 3327ev_prepare_start (EV_P_ ev_prepare *w)
2751{ 3328{
2752 if (expect_false (ev_is_active (w))) 3329 if (expect_false (ev_is_active (w)))
2753 return; 3330 return;
… …
2779 3356
2780 ev_stop (EV_A_ (W)w); 3357 ev_stop (EV_A_ (W)w);
2781 3358
2782 EV_FREQUENT_CHECK; 3359 EV_FREQUENT_CHECK;
2783} 3360}
3361#endif
2784 3362
3363#if EV_CHECK_ENABLE
2785void 3364void
2786ev_check_start (EV_P_ ev_check *w) 3365ev_check_start (EV_P_ ev_check *w)
2787{ 3366{
2788 if (expect_false (ev_is_active (w))) 3367 if (expect_false (ev_is_active (w)))
2789 return; 3368 return;
… …
2815 3394
2816 ev_stop (EV_A_ (W)w); 3395 ev_stop (EV_A_ (W)w);
2817 3396
2818 EV_FREQUENT_CHECK; 3397 EV_FREQUENT_CHECK;
2819} 3398}
3399#endif
2820 3400
2821#if EV_EMBED_ENABLE 3401#if EV_EMBED_ENABLE
2822void noinline 3402void noinline
2823ev_embed_sweep (EV_P_ ev_embed *w) 3403ev_embed_sweep (EV_P_ ev_embed *w)
2824{ 3404{
… …
2840embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3420embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2841{ 3421{
2842 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3422 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2843 3423
2844 { 3424 {
2845 struct ev_loop *loop = w->other; 3425 EV_P = w->other;
2846 3426
2847 while (fdchangecnt) 3427 while (fdchangecnt)
2848 { 3428 {
2849 fd_reify (EV_A); 3429 fd_reify (EV_A);
2850 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3430 ev_loop (EV_A_ EVLOOP_NONBLOCK);
… …
2855static void 3435static void
2856embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 3436embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
2857{ 3437{
2858 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3438 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2859 3439
3440 ev_embed_stop (EV_A_ w);
3441
2860 { 3442 {
2861 struct ev_loop *loop = w->other; 3443 EV_P = w->other;
2862 3444
2863 ev_loop_fork (EV_A); 3445 ev_loop_fork (EV_A);
3446 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2864 } 3447 }
3448
3449 ev_embed_start (EV_A_ w);
2865} 3450}
2866 3451
2867#if 0 3452#if 0
2868static void 3453static void
2869embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3454embed_idle_cb (EV_P_ ev_idle *idle, int revents)
… …
2877{ 3462{
2878 if (expect_false (ev_is_active (w))) 3463 if (expect_false (ev_is_active (w)))
2879 return; 3464 return;
2880 3465
2881 { 3466 {
2882 struct ev_loop *loop = w->other; 3467 EV_P = w->other;
2883 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3468 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2884 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3469 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2885 } 3470 }
2886 3471
2887 EV_FREQUENT_CHECK; 3472 EV_FREQUENT_CHECK;
2888 3473
… …
2914 3499
2915 ev_io_stop (EV_A_ &w->io); 3500 ev_io_stop (EV_A_ &w->io);
2916 ev_prepare_stop (EV_A_ &w->prepare); 3501 ev_prepare_stop (EV_A_ &w->prepare);
2917 ev_fork_stop (EV_A_ &w->fork); 3502 ev_fork_stop (EV_A_ &w->fork);
2918 3503
3504 ev_stop (EV_A_ (W)w);
3505
2919 EV_FREQUENT_CHECK; 3506 EV_FREQUENT_CHECK;
2920} 3507}
2921#endif 3508#endif
2922 3509
2923#if EV_FORK_ENABLE 3510#if EV_FORK_ENABLE
… …
2999 3586
3000void 3587void
3001ev_async_send (EV_P_ ev_async *w) 3588ev_async_send (EV_P_ ev_async *w)
3002{ 3589{
3003 w->sent = 1; 3590 w->sent = 1;
3004 evpipe_write (EV_A_ &gotasync); 3591 evpipe_write (EV_A_ &async_pending);
3005} 3592}
3006#endif 3593#endif
3007 3594
3008/*****************************************************************************/ 3595/*****************************************************************************/
3009 3596
… …
3071 ev_timer_set (&once->to, timeout, 0.); 3658 ev_timer_set (&once->to, timeout, 0.);
3072 ev_timer_start (EV_A_ &once->to); 3659 ev_timer_start (EV_A_ &once->to);
3073 } 3660 }
3074} 3661}
3075 3662
3663/*****************************************************************************/
3664
3665#if EV_WALK_ENABLE
3666void
3667ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3668{
3669 int i, j;
3670 ev_watcher_list *wl, *wn;
3671
3672 if (types & (EV_IO | EV_EMBED))
3673 for (i = 0; i < anfdmax; ++i)
3674 for (wl = anfds [i].head; wl; )
3675 {
3676 wn = wl->next;
3677
3678#if EV_EMBED_ENABLE
3679 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3680 {
3681 if (types & EV_EMBED)
3682 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3683 }
3684 else
3685#endif
3686#if EV_USE_INOTIFY
3687 if (ev_cb ((ev_io *)wl) == infy_cb)
3688 ;
3689 else
3690#endif
3691 if ((ev_io *)wl != &pipe_w)
3692 if (types & EV_IO)
3693 cb (EV_A_ EV_IO, wl);
3694
3695 wl = wn;
3696 }
3697
3698 if (types & (EV_TIMER | EV_STAT))
3699 for (i = timercnt + HEAP0; i-- > HEAP0; )
3700#if EV_STAT_ENABLE
3701 /*TODO: timer is not always active*/
3702 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3703 {
3704 if (types & EV_STAT)
3705 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3706 }
3707 else
3708#endif
3709 if (types & EV_TIMER)
3710 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3711
3712#if EV_PERIODIC_ENABLE
3713 if (types & EV_PERIODIC)
3714 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3715 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3716#endif
3717
3718#if EV_IDLE_ENABLE
3719 if (types & EV_IDLE)
3720 for (j = NUMPRI; i--; )
3721 for (i = idlecnt [j]; i--; )
3722 cb (EV_A_ EV_IDLE, idles [j][i]);
3723#endif
3724
3725#if EV_FORK_ENABLE
3726 if (types & EV_FORK)
3727 for (i = forkcnt; i--; )
3728 if (ev_cb (forks [i]) != embed_fork_cb)
3729 cb (EV_A_ EV_FORK, forks [i]);
3730#endif
3731
3732#if EV_ASYNC_ENABLE
3733 if (types & EV_ASYNC)
3734 for (i = asynccnt; i--; )
3735 cb (EV_A_ EV_ASYNC, asyncs [i]);
3736#endif
3737
3738#if EV_PREPARE_ENABLE
3739 if (types & EV_PREPARE)
3740 for (i = preparecnt; i--; )
3741# if EV_EMBED_ENABLE
3742 if (ev_cb (prepares [i]) != embed_prepare_cb)
3743# endif
3744 cb (EV_A_ EV_PREPARE, prepares [i]);
3745#endif
3746
3747#if EV_CHECK_ENABLE
3748 if (types & EV_CHECK)
3749 for (i = checkcnt; i--; )
3750 cb (EV_A_ EV_CHECK, checks [i]);
3751#endif
3752
3753#if EV_SIGNAL_ENABLE
3754 if (types & EV_SIGNAL)
3755 for (i = 0; i < EV_NSIG - 1; ++i)
3756 for (wl = signals [i].head; wl; )
3757 {
3758 wn = wl->next;
3759 cb (EV_A_ EV_SIGNAL, wl);
3760 wl = wn;
3761 }
3762#endif
3763
3764#if EV_CHILD_ENABLE
3765 if (types & EV_CHILD)
3766 for (i = (EV_PID_HASHSIZE); i--; )
3767 for (wl = childs [i]; wl; )
3768 {
3769 wn = wl->next;
3770 cb (EV_A_ EV_CHILD, wl);
3771 wl = wn;
3772 }
3773#endif
3774/* EV_STAT 0x00001000 /* stat data changed */
3775/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3776}
3777#endif
3778
3076#if EV_MULTIPLICITY 3779#if EV_MULTIPLICITY
3077 #include "ev_wrap.h" 3780 #include "ev_wrap.h"
3078#endif 3781#endif
3079 3782
3080#ifdef __cplusplus 3783#ifdef __cplusplus

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