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Comparing libev/ev.c (file contents):
Revision 1.275 by root, Fri Dec 12 20:35:21 2008 UTC vs.
Revision 1.342 by root, Mon Mar 29 12:40:57 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 *
… …
57# endif 57# endif
58# ifndef EV_USE_MONOTONIC 58# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 59# define EV_USE_MONOTONIC 1
60# endif 60# endif
61# endif 61# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL)
63# define EV_USE_CLOCK_SYSCALL 0
62# endif 64# endif
63 65
64# if HAVE_CLOCK_GETTIME 66# if HAVE_CLOCK_GETTIME
65# ifndef EV_USE_MONOTONIC 67# ifndef EV_USE_MONOTONIC
66# define EV_USE_MONOTONIC 1 68# define EV_USE_MONOTONIC 1
67# endif 69# endif
68# ifndef EV_USE_REALTIME 70# ifndef EV_USE_REALTIME
69# define EV_USE_REALTIME 1 71# define EV_USE_REALTIME 0
70# endif 72# endif
71# else 73# else
72# ifndef EV_USE_MONOTONIC 74# ifndef EV_USE_MONOTONIC
73# define EV_USE_MONOTONIC 0 75# define EV_USE_MONOTONIC 0
74# endif 76# endif
… …
77# endif 79# endif
78# endif 80# endif
79 81
80# ifndef EV_USE_NANOSLEEP 82# ifndef EV_USE_NANOSLEEP
81# if HAVE_NANOSLEEP 83# if HAVE_NANOSLEEP
82# define EV_USE_NANOSLEEP 1 84# define EV_USE_NANOSLEEP EV_FEATURE_OS
83# else 85# else
84# define EV_USE_NANOSLEEP 0 86# define EV_USE_NANOSLEEP 0
85# endif 87# endif
86# endif 88# endif
87 89
88# ifndef EV_USE_SELECT 90# ifndef EV_USE_SELECT
89# if HAVE_SELECT && HAVE_SYS_SELECT_H 91# if HAVE_SELECT && HAVE_SYS_SELECT_H
90# define EV_USE_SELECT 1 92# define EV_USE_SELECT EV_FEATURE_BACKENDS
91# else 93# else
92# define EV_USE_SELECT 0 94# define EV_USE_SELECT 0
93# endif 95# endif
94# endif 96# endif
95 97
96# ifndef EV_USE_POLL 98# ifndef EV_USE_POLL
97# if HAVE_POLL && HAVE_POLL_H 99# if HAVE_POLL && HAVE_POLL_H
98# define EV_USE_POLL 1 100# define EV_USE_POLL EV_FEATURE_BACKENDS
99# else 101# else
100# define EV_USE_POLL 0 102# define EV_USE_POLL 0
101# endif 103# endif
102# endif 104# endif
103 105
104# ifndef EV_USE_EPOLL 106# ifndef EV_USE_EPOLL
105# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
106# define EV_USE_EPOLL 1 108# define EV_USE_EPOLL EV_FEATURE_BACKENDS
107# else 109# else
108# define EV_USE_EPOLL 0 110# define EV_USE_EPOLL 0
109# endif 111# endif
110# endif 112# endif
111 113
112# ifndef EV_USE_KQUEUE 114# ifndef EV_USE_KQUEUE
113# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# define EV_USE_KQUEUE 1 116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
115# else 117# else
116# define EV_USE_KQUEUE 0 118# define EV_USE_KQUEUE 0
117# endif 119# endif
118# endif 120# endif
119 121
120# ifndef EV_USE_PORT 122# ifndef EV_USE_PORT
121# if HAVE_PORT_H && HAVE_PORT_CREATE 123# if HAVE_PORT_H && HAVE_PORT_CREATE
122# define EV_USE_PORT 1 124# define EV_USE_PORT EV_FEATURE_BACKENDS
123# else 125# else
124# define EV_USE_PORT 0 126# define EV_USE_PORT 0
125# endif 127# endif
126# endif 128# endif
127 129
128# ifndef EV_USE_INOTIFY 130# ifndef EV_USE_INOTIFY
129# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
130# define EV_USE_INOTIFY 1 132# define EV_USE_INOTIFY EV_FEATURE_OS
131# else 133# else
132# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY 0
133# endif 135# endif
134# endif 136# endif
135 137
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD EV_FEATURE_OS
141# else
142# define EV_USE_SIGNALFD 0
143# endif
144# endif
145
136# ifndef EV_USE_EVENTFD 146# ifndef EV_USE_EVENTFD
137# if HAVE_EVENTFD 147# if HAVE_EVENTFD
138# define EV_USE_EVENTFD 1 148# define EV_USE_EVENTFD EV_FEATURE_OS
139# else 149# else
140# define EV_USE_EVENTFD 0 150# define EV_USE_EVENTFD 0
141# endif 151# endif
142# endif 152# endif
143 153
144#endif 154#endif
145 155
146#include <math.h> 156#include <math.h>
147#include <stdlib.h> 157#include <stdlib.h>
158#include <string.h>
148#include <fcntl.h> 159#include <fcntl.h>
149#include <stddef.h> 160#include <stddef.h>
150 161
151#include <stdio.h> 162#include <stdio.h>
152 163
153#include <assert.h> 164#include <assert.h>
154#include <errno.h> 165#include <errno.h>
155#include <sys/types.h> 166#include <sys/types.h>
156#include <time.h> 167#include <time.h>
168#include <limits.h>
157 169
158#include <signal.h> 170#include <signal.h>
159 171
160#ifdef EV_H 172#ifdef EV_H
161# include EV_H 173# include EV_H
… …
172# define WIN32_LEAN_AND_MEAN 184# define WIN32_LEAN_AND_MEAN
173# include <windows.h> 185# include <windows.h>
174# ifndef EV_SELECT_IS_WINSOCKET 186# ifndef EV_SELECT_IS_WINSOCKET
175# define EV_SELECT_IS_WINSOCKET 1 187# define EV_SELECT_IS_WINSOCKET 1
176# endif 188# endif
189# undef EV_AVOID_STDIO
177#endif 190#endif
178 191
179/* this block tries to deduce configuration from header-defined symbols and defaults */ 192/* this block tries to deduce configuration from header-defined symbols and defaults */
193
194/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG)
196/* use what's provided */
197#elif defined (NSIG)
198# define EV_NSIG (NSIG)
199#elif defined(_NSIG)
200# define EV_NSIG (_NSIG)
201#elif defined (SIGMAX)
202# define EV_NSIG (SIGMAX+1)
203#elif defined (SIG_MAX)
204# define EV_NSIG (SIG_MAX+1)
205#elif defined (_SIG_MAX)
206# define EV_NSIG (_SIG_MAX+1)
207#elif defined (MAXSIG)
208# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG)
210# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE)
212# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig)
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else
216# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line, */
218/* but consider reporting it, too! :) */
219# define EV_NSIG 65
220#endif
180 221
181#ifndef EV_USE_CLOCK_SYSCALL 222#ifndef EV_USE_CLOCK_SYSCALL
182# if __linux && __GLIBC__ >= 2 223# if __linux && __GLIBC__ >= 2
183# define EV_USE_CLOCK_SYSCALL 1 224# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
184# else 225# else
185# define EV_USE_CLOCK_SYSCALL 0 226# define EV_USE_CLOCK_SYSCALL 0
186# endif 227# endif
187#endif 228#endif
188 229
189#ifndef EV_USE_MONOTONIC 230#ifndef EV_USE_MONOTONIC
190# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 231# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
191# define EV_USE_MONOTONIC 1 232# define EV_USE_MONOTONIC EV_FEATURE_OS
192# else 233# else
193# define EV_USE_MONOTONIC 0 234# define EV_USE_MONOTONIC 0
194# endif 235# endif
195#endif 236#endif
196 237
197#ifndef EV_USE_REALTIME 238#ifndef EV_USE_REALTIME
198# define EV_USE_REALTIME 0 239# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
199#endif 240#endif
200 241
201#ifndef EV_USE_NANOSLEEP 242#ifndef EV_USE_NANOSLEEP
202# if _POSIX_C_SOURCE >= 199309L 243# if _POSIX_C_SOURCE >= 199309L
203# define EV_USE_NANOSLEEP 1 244# define EV_USE_NANOSLEEP EV_FEATURE_OS
204# else 245# else
205# define EV_USE_NANOSLEEP 0 246# define EV_USE_NANOSLEEP 0
206# endif 247# endif
207#endif 248#endif
208 249
209#ifndef EV_USE_SELECT 250#ifndef EV_USE_SELECT
210# define EV_USE_SELECT 1 251# define EV_USE_SELECT EV_FEATURE_BACKENDS
211#endif 252#endif
212 253
213#ifndef EV_USE_POLL 254#ifndef EV_USE_POLL
214# ifdef _WIN32 255# ifdef _WIN32
215# define EV_USE_POLL 0 256# define EV_USE_POLL 0
216# else 257# else
217# define EV_USE_POLL 1 258# define EV_USE_POLL EV_FEATURE_BACKENDS
218# endif 259# endif
219#endif 260#endif
220 261
221#ifndef EV_USE_EPOLL 262#ifndef EV_USE_EPOLL
222# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 263# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
223# define EV_USE_EPOLL 1 264# define EV_USE_EPOLL EV_FEATURE_BACKENDS
224# else 265# else
225# define EV_USE_EPOLL 0 266# define EV_USE_EPOLL 0
226# endif 267# endif
227#endif 268#endif
228 269
… …
234# define EV_USE_PORT 0 275# define EV_USE_PORT 0
235#endif 276#endif
236 277
237#ifndef EV_USE_INOTIFY 278#ifndef EV_USE_INOTIFY
238# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 279# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
239# define EV_USE_INOTIFY 1 280# define EV_USE_INOTIFY EV_FEATURE_OS
240# else 281# else
241# define EV_USE_INOTIFY 0 282# define EV_USE_INOTIFY 0
242# endif 283# endif
243#endif 284#endif
244 285
245#ifndef EV_PID_HASHSIZE 286#ifndef EV_PID_HASHSIZE
246# if EV_MINIMAL 287# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
247# define EV_PID_HASHSIZE 1
248# else
249# define EV_PID_HASHSIZE 16
250# endif
251#endif 288#endif
252 289
253#ifndef EV_INOTIFY_HASHSIZE 290#ifndef EV_INOTIFY_HASHSIZE
254# if EV_MINIMAL 291# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
255# define EV_INOTIFY_HASHSIZE 1
256# else
257# define EV_INOTIFY_HASHSIZE 16
258# endif
259#endif 292#endif
260 293
261#ifndef EV_USE_EVENTFD 294#ifndef EV_USE_EVENTFD
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 295# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
263# define EV_USE_EVENTFD 1 296# define EV_USE_EVENTFD EV_FEATURE_OS
264# else 297# else
265# 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
266# endif 307# endif
267#endif 308#endif
268 309
269#if 0 /* debugging */ 310#if 0 /* debugging */
270# define EV_VERIFY 3 311# define EV_VERIFY 3
271# define EV_USE_4HEAP 1 312# define EV_USE_4HEAP 1
272# define EV_HEAP_CACHE_AT 1 313# define EV_HEAP_CACHE_AT 1
273#endif 314#endif
274 315
275#ifndef EV_VERIFY 316#ifndef EV_VERIFY
276# define EV_VERIFY !EV_MINIMAL 317# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
277#endif 318#endif
278 319
279#ifndef EV_USE_4HEAP 320#ifndef EV_USE_4HEAP
280# define EV_USE_4HEAP !EV_MINIMAL 321# define EV_USE_4HEAP EV_FEATURE_DATA
281#endif 322#endif
282 323
283#ifndef EV_HEAP_CACHE_AT 324#ifndef EV_HEAP_CACHE_AT
284# 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
285#endif 340#endif
286 341
287/* 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
288 349
289#ifndef CLOCK_MONOTONIC 350#ifndef CLOCK_MONOTONIC
290# undef EV_USE_MONOTONIC 351# undef EV_USE_MONOTONIC
291# define EV_USE_MONOTONIC 0 352# define EV_USE_MONOTONIC 0
292#endif 353#endif
… …
320 381
321#if EV_SELECT_IS_WINSOCKET 382#if EV_SELECT_IS_WINSOCKET
322# include <winsock.h> 383# include <winsock.h>
323#endif 384#endif
324 385
325/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
326/* which makes programs even slower. might work on other unices, too. */
327#if EV_USE_CLOCK_SYSCALL
328# include <syscall.h>
329# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
330# undef EV_USE_MONOTONIC
331# define EV_USE_MONOTONIC 1
332#endif
333
334#if EV_USE_EVENTFD 386#if EV_USE_EVENTFD
335/* 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 */
336# 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
337# ifdef __cplusplus 399# ifdef __cplusplus
338extern "C" { 400extern "C" {
339# endif 401# endif
340int eventfd (unsigned int initval, int flags); 402int (eventfd) (unsigned int initval, int flags);
341# ifdef __cplusplus 403# ifdef __cplusplus
342} 404}
343# endif 405# endif
344#endif 406#endif
345 407
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
436
346/**/ 437/**/
347 438
348#if EV_VERIFY >= 3 439#if EV_VERIFY >= 3
349# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 440# define EV_FREQUENT_CHECK ev_verify (EV_A)
350#else 441#else
351# define EV_FREQUENT_CHECK do { } while (0) 442# define EV_FREQUENT_CHECK do { } while (0)
352#endif 443#endif
353 444
354/* 445/*
… …
361 */ 452 */
362#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 453#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
363 454
364#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) */
365#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) */
366/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
367 457
368#if __GNUC__ >= 4 458#if __GNUC__ >= 4
369# define expect(expr,value) __builtin_expect ((expr),(value)) 459# define expect(expr,value) __builtin_expect ((expr),(value))
370# define noinline __attribute__ ((noinline)) 460# define noinline __attribute__ ((noinline))
371#else 461#else
… …
378 468
379#define expect_false(expr) expect ((expr) != 0, 0) 469#define expect_false(expr) expect ((expr) != 0, 0)
380#define expect_true(expr) expect ((expr) != 0, 1) 470#define expect_true(expr) expect ((expr) != 0, 1)
381#define inline_size static inline 471#define inline_size static inline
382 472
383#if EV_MINIMAL 473#if EV_FEATURE_CODE
474# define inline_speed static inline
475#else
384# 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)
385#else 483#else
386# define inline_speed static inline
387#endif
388
389#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
390#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 484# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
485#endif
391 486
392#define EMPTY /* required for microsofts broken pseudo-c compiler */ 487#define EMPTY /* required for microsofts broken pseudo-c compiler */
393#define EMPTY2(a,b) /* used to suppress some warnings */ 488#define EMPTY2(a,b) /* used to suppress some warnings */
394 489
395typedef ev_watcher *W; 490typedef ev_watcher *W;
… …
397typedef ev_watcher_time *WT; 492typedef ev_watcher_time *WT;
398 493
399#define ev_active(w) ((W)(w))->active 494#define ev_active(w) ((W)(w))->active
400#define ev_at(w) ((WT)(w))->at 495#define ev_at(w) ((WT)(w))->at
401 496
402#if EV_USE_MONOTONIC 497#if EV_USE_REALTIME
403/* 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 */
404/* 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
405static 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)
406#endif 515#endif
407 516
408#ifdef _WIN32 517#ifdef _WIN32
409# include "ev_win32.c" 518# include "ev_win32.c"
410#endif 519#endif
411 520
412/*****************************************************************************/ 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
413 530
414static void (*syserr_cb)(const char *msg); 531static void (*syserr_cb)(const char *msg);
415 532
416void 533void
417ev_set_syserr_cb (void (*cb)(const char *msg)) 534ev_set_syserr_cb (void (*cb)(const char *msg))
… …
427 544
428 if (syserr_cb) 545 if (syserr_cb)
429 syserr_cb (msg); 546 syserr_cb (msg);
430 else 547 else
431 { 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
432 perror (msg); 557 perror (msg);
558#endif
433 abort (); 559 abort ();
434 } 560 }
435} 561}
436 562
437static void * 563static void *
438ev_realloc_emul (void *ptr, long size) 564ev_realloc_emul (void *ptr, long size)
439{ 565{
566#if __GLIBC__
567 return realloc (ptr, size);
568#else
440 /* some systems, notably openbsd and darwin, fail to properly 569 /* some systems, notably openbsd and darwin, fail to properly
441 * 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
442 * the single unix specification, so work around them here. 571 * the single unix specification, so work around them here.
443 */ 572 */
444 573
445 if (size) 574 if (size)
446 return realloc (ptr, size); 575 return realloc (ptr, size);
447 576
448 free (ptr); 577 free (ptr);
449 return 0; 578 return 0;
579#endif
450} 580}
451 581
452static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 582static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
453 583
454void 584void
… …
462{ 592{
463 ptr = alloc (ptr, size); 593 ptr = alloc (ptr, size);
464 594
465 if (!ptr && size) 595 if (!ptr && size)
466 { 596 {
597#if EV_AVOID_STDIO
598 ev_printerr ("libev: memory allocation failed, aborting.\n");
599#else
467 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 600 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
601#endif
468 abort (); 602 abort ();
469 } 603 }
470 604
471 return ptr; 605 return ptr;
472} 606}
… …
474#define ev_malloc(size) ev_realloc (0, (size)) 608#define ev_malloc(size) ev_realloc (0, (size))
475#define ev_free(ptr) ev_realloc ((ptr), 0) 609#define ev_free(ptr) ev_realloc ((ptr), 0)
476 610
477/*****************************************************************************/ 611/*****************************************************************************/
478 612
613/* set in reify when reification needed */
614#define EV_ANFD_REIFY 1
615
616/* file descriptor info structure */
479typedef struct 617typedef struct
480{ 618{
481 WL head; 619 WL head;
482 unsigned char events; 620 unsigned char events; /* the events watched for */
483 unsigned char reify; 621 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
484 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 622 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
485 unsigned char unused; 623 unsigned char unused;
486#if EV_USE_EPOLL 624#if EV_USE_EPOLL
487 unsigned int egen; /* generation counter to counter epoll bugs */ 625 unsigned int egen; /* generation counter to counter epoll bugs */
488#endif 626#endif
489#if EV_SELECT_IS_WINSOCKET 627#if EV_SELECT_IS_WINSOCKET
490 SOCKET handle; 628 SOCKET handle;
491#endif 629#endif
492} ANFD; 630} ANFD;
493 631
632/* stores the pending event set for a given watcher */
494typedef struct 633typedef struct
495{ 634{
496 W w; 635 W w;
497 int events; 636 int events; /* the pending event set for the given watcher */
498} ANPENDING; 637} ANPENDING;
499 638
500#if EV_USE_INOTIFY 639#if EV_USE_INOTIFY
501/* hash table entry per inotify-id */ 640/* hash table entry per inotify-id */
502typedef struct 641typedef struct
… …
505} ANFS; 644} ANFS;
506#endif 645#endif
507 646
508/* Heap Entry */ 647/* Heap Entry */
509#if EV_HEAP_CACHE_AT 648#if EV_HEAP_CACHE_AT
649 /* a heap element */
510 typedef struct { 650 typedef struct {
511 ev_tstamp at; 651 ev_tstamp at;
512 WT w; 652 WT w;
513 } ANHE; 653 } ANHE;
514 654
515 #define ANHE_w(he) (he).w /* access watcher, read-write */ 655 #define ANHE_w(he) (he).w /* access watcher, read-write */
516 #define ANHE_at(he) (he).at /* access cached at, read-only */ 656 #define ANHE_at(he) (he).at /* access cached at, read-only */
517 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ 657 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
518#else 658#else
659 /* a heap element */
519 typedef WT ANHE; 660 typedef WT ANHE;
520 661
521 #define ANHE_w(he) (he) 662 #define ANHE_w(he) (he)
522 #define ANHE_at(he) (he)->at 663 #define ANHE_at(he) (he)->at
523 #define ANHE_at_cache(he) 664 #define ANHE_at_cache(he)
… …
547 688
548 static int ev_default_loop_ptr; 689 static int ev_default_loop_ptr;
549 690
550#endif 691#endif
551 692
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
552/*****************************************************************************/ 705/*****************************************************************************/
553 706
707#ifndef EV_HAVE_EV_TIME
554ev_tstamp 708ev_tstamp
555ev_time (void) 709ev_time (void)
556{ 710{
557#if EV_USE_REALTIME 711#if EV_USE_REALTIME
712 if (expect_true (have_realtime))
713 {
558 struct timespec ts; 714 struct timespec ts;
559 clock_gettime (CLOCK_REALTIME, &ts); 715 clock_gettime (CLOCK_REALTIME, &ts);
560 return ts.tv_sec + ts.tv_nsec * 1e-9; 716 return ts.tv_sec + ts.tv_nsec * 1e-9;
561#else 717 }
718#endif
719
562 struct timeval tv; 720 struct timeval tv;
563 gettimeofday (&tv, 0); 721 gettimeofday (&tv, 0);
564 return tv.tv_sec + tv.tv_usec * 1e-6; 722 return tv.tv_sec + tv.tv_usec * 1e-6;
565#endif
566} 723}
724#endif
567 725
568ev_tstamp inline_size 726inline_size ev_tstamp
569get_clock (void) 727get_clock (void)
570{ 728{
571#if EV_USE_MONOTONIC 729#if EV_USE_MONOTONIC
572 if (expect_true (have_monotonic)) 730 if (expect_true (have_monotonic))
573 { 731 {
… …
607 765
608 tv.tv_sec = (time_t)delay; 766 tv.tv_sec = (time_t)delay;
609 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 767 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
610 768
611 /* 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 */
612 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 770 /* something not guaranteed by newer posix versions, but guaranteed */
613 /* by older ones */ 771 /* by older ones */
614 select (0, 0, 0, 0, &tv); 772 select (0, 0, 0, 0, &tv);
615#endif 773#endif
616 } 774 }
617} 775}
618 776
619/*****************************************************************************/ 777/*****************************************************************************/
620 778
621#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 */
622 780
623int 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
624array_nextsize (int elem, int cur, int cnt) 784array_nextsize (int elem, int cur, int cnt)
625{ 785{
626 int ncur = cur + 1; 786 int ncur = cur + 1;
627 787
628 do 788 do
… …
669 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 829 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
670 } 830 }
671#endif 831#endif
672 832
673#define array_free(stem, idx) \ 833#define array_free(stem, idx) \
674 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
675 835
676/*****************************************************************************/ 836/*****************************************************************************/
837
838/* dummy callback for pending events */
839static void noinline
840pendingcb (EV_P_ ev_prepare *w, int revents)
841{
842}
677 843
678void noinline 844void noinline
679ev_feed_event (EV_P_ void *w, int revents) 845ev_feed_event (EV_P_ void *w, int revents)
680{ 846{
681 W w_ = (W)w; 847 W w_ = (W)w;
… …
690 pendings [pri][w_->pending - 1].w = w_; 856 pendings [pri][w_->pending - 1].w = w_;
691 pendings [pri][w_->pending - 1].events = revents; 857 pendings [pri][w_->pending - 1].events = revents;
692 } 858 }
693} 859}
694 860
695void 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
696queue_events (EV_P_ W *events, int eventcnt, int type) 877queue_events (EV_P_ W *events, int eventcnt, int type)
697{ 878{
698 int i; 879 int i;
699 880
700 for (i = 0; i < eventcnt; ++i) 881 for (i = 0; i < eventcnt; ++i)
701 ev_feed_event (EV_A_ events [i], type); 882 ev_feed_event (EV_A_ events [i], type);
702} 883}
703 884
704/*****************************************************************************/ 885/*****************************************************************************/
705 886
706void inline_speed 887inline_speed void
707fd_event (EV_P_ int fd, int revents) 888fd_event_nocheck (EV_P_ int fd, int revents)
708{ 889{
709 ANFD *anfd = anfds + fd; 890 ANFD *anfd = anfds + fd;
710 ev_io *w; 891 ev_io *w;
711 892
712 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)
… …
716 if (ev) 897 if (ev)
717 ev_feed_event (EV_A_ (W)w, ev); 898 ev_feed_event (EV_A_ (W)w, ev);
718 } 899 }
719} 900}
720 901
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
721void 913void
722ev_feed_fd_event (EV_P_ int fd, int revents) 914ev_feed_fd_event (EV_P_ int fd, int revents)
723{ 915{
724 if (fd >= 0 && fd < anfdmax) 916 if (fd >= 0 && fd < anfdmax)
725 fd_event (EV_A_ fd, revents); 917 fd_event_nocheck (EV_A_ fd, revents);
726} 918}
727 919
728void inline_size 920/* make sure the external fd watch events are in-sync */
921/* with the kernel/libev internal state */
922inline_size void
729fd_reify (EV_P) 923fd_reify (EV_P)
730{ 924{
731 int i; 925 int i;
732 926
733 for (i = 0; i < fdchangecnt; ++i) 927 for (i = 0; i < fdchangecnt; ++i)
… …
743 937
744#if EV_SELECT_IS_WINSOCKET 938#if EV_SELECT_IS_WINSOCKET
745 if (events) 939 if (events)
746 { 940 {
747 unsigned long arg; 941 unsigned long arg;
748 #ifdef EV_FD_TO_WIN32_HANDLE
749 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 942 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
750 #else
751 anfd->handle = _get_osfhandle (fd);
752 #endif
753 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));
754 } 944 }
755#endif 945#endif
756 946
757 { 947 {
758 unsigned char o_events = anfd->events; 948 unsigned char o_events = anfd->events;
759 unsigned char o_reify = anfd->reify; 949 unsigned char o_reify = anfd->reify;
760 950
761 anfd->reify = 0; 951 anfd->reify = 0;
762 anfd->events = events; 952 anfd->events = events;
763 953
764 if (o_events != events || o_reify & EV_IOFDSET) 954 if (o_events != events || o_reify & EV__IOFDSET)
765 backend_modify (EV_A_ fd, o_events, events); 955 backend_modify (EV_A_ fd, o_events, events);
766 } 956 }
767 } 957 }
768 958
769 fdchangecnt = 0; 959 fdchangecnt = 0;
770} 960}
771 961
772void inline_size 962/* something about the given fd changed */
963inline_size void
773fd_change (EV_P_ int fd, int flags) 964fd_change (EV_P_ int fd, int flags)
774{ 965{
775 unsigned char reify = anfds [fd].reify; 966 unsigned char reify = anfds [fd].reify;
776 anfds [fd].reify |= flags; 967 anfds [fd].reify |= flags;
777 968
… …
781 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 972 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
782 fdchanges [fdchangecnt - 1] = fd; 973 fdchanges [fdchangecnt - 1] = fd;
783 } 974 }
784} 975}
785 976
786void inline_speed 977/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
978inline_speed void
787fd_kill (EV_P_ int fd) 979fd_kill (EV_P_ int fd)
788{ 980{
789 ev_io *w; 981 ev_io *w;
790 982
791 while ((w = (ev_io *)anfds [fd].head)) 983 while ((w = (ev_io *)anfds [fd].head))
… …
793 ev_io_stop (EV_A_ w); 985 ev_io_stop (EV_A_ w);
794 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);
795 } 987 }
796} 988}
797 989
798int inline_size 990/* check whether the given fd is actually valid, for error recovery */
991inline_size int
799fd_valid (int fd) 992fd_valid (int fd)
800{ 993{
801#ifdef _WIN32 994#ifdef _WIN32
802 return _get_osfhandle (fd) != -1; 995 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
803#else 996#else
804 return fcntl (fd, F_GETFD) != -1; 997 return fcntl (fd, F_GETFD) != -1;
805#endif 998#endif
806} 999}
807 1000
… …
825 1018
826 for (fd = anfdmax; fd--; ) 1019 for (fd = anfdmax; fd--; )
827 if (anfds [fd].events) 1020 if (anfds [fd].events)
828 { 1021 {
829 fd_kill (EV_A_ fd); 1022 fd_kill (EV_A_ fd);
830 return; 1023 break;
831 } 1024 }
832} 1025}
833 1026
834/* 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 */
835static void noinline 1028static void noinline
… …
840 for (fd = 0; fd < anfdmax; ++fd) 1033 for (fd = 0; fd < anfdmax; ++fd)
841 if (anfds [fd].events) 1034 if (anfds [fd].events)
842 { 1035 {
843 anfds [fd].events = 0; 1036 anfds [fd].events = 0;
844 anfds [fd].emask = 0; 1037 anfds [fd].emask = 0;
845 fd_change (EV_A_ fd, EV_IOFDSET | 1); 1038 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
846 } 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
847} 1054}
848 1055
849/*****************************************************************************/ 1056/*****************************************************************************/
850 1057
851/* 1058/*
… …
866#define HEAP0 (DHEAP - 1) /* index of first element in heap */ 1073#define HEAP0 (DHEAP - 1) /* index of first element in heap */
867#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) 1074#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
868#define UPHEAP_DONE(p,k) ((p) == (k)) 1075#define UPHEAP_DONE(p,k) ((p) == (k))
869 1076
870/* away from the root */ 1077/* away from the root */
871void inline_speed 1078inline_speed void
872downheap (ANHE *heap, int N, int k) 1079downheap (ANHE *heap, int N, int k)
873{ 1080{
874 ANHE he = heap [k]; 1081 ANHE he = heap [k];
875 ANHE *E = heap + N + HEAP0; 1082 ANHE *E = heap + N + HEAP0;
876 1083
… …
916#define HEAP0 1 1123#define HEAP0 1
917#define HPARENT(k) ((k) >> 1) 1124#define HPARENT(k) ((k) >> 1)
918#define UPHEAP_DONE(p,k) (!(p)) 1125#define UPHEAP_DONE(p,k) (!(p))
919 1126
920/* away from the root */ 1127/* away from the root */
921void inline_speed 1128inline_speed void
922downheap (ANHE *heap, int N, int k) 1129downheap (ANHE *heap, int N, int k)
923{ 1130{
924 ANHE he = heap [k]; 1131 ANHE he = heap [k];
925 1132
926 for (;;) 1133 for (;;)
927 { 1134 {
928 int c = k << 1; 1135 int c = k << 1;
929 1136
930 if (c > N + HEAP0 - 1) 1137 if (c >= N + HEAP0)
931 break; 1138 break;
932 1139
933 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])
934 ? 1 : 0; 1141 ? 1 : 0;
935 1142
… …
946 ev_active (ANHE_w (he)) = k; 1153 ev_active (ANHE_w (he)) = k;
947} 1154}
948#endif 1155#endif
949 1156
950/* towards the root */ 1157/* towards the root */
951void inline_speed 1158inline_speed void
952upheap (ANHE *heap, int k) 1159upheap (ANHE *heap, int k)
953{ 1160{
954 ANHE he = heap [k]; 1161 ANHE he = heap [k];
955 1162
956 for (;;) 1163 for (;;)
… …
967 1174
968 heap [k] = he; 1175 heap [k] = he;
969 ev_active (ANHE_w (he)) = k; 1176 ev_active (ANHE_w (he)) = k;
970} 1177}
971 1178
972void inline_size 1179/* move an element suitably so it is in a correct place */
1180inline_size void
973adjustheap (ANHE *heap, int N, int k) 1181adjustheap (ANHE *heap, int N, int k)
974{ 1182{
975 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)]))
976 upheap (heap, k); 1184 upheap (heap, k);
977 else 1185 else
978 downheap (heap, N, k); 1186 downheap (heap, N, k);
979} 1187}
980 1188
981/* 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 */
982void inline_size 1190inline_size void
983reheap (ANHE *heap, int N) 1191reheap (ANHE *heap, int N)
984{ 1192{
985 int i; 1193 int i;
986 1194
987 /* 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 */
… …
990 upheap (heap, i + HEAP0); 1198 upheap (heap, i + HEAP0);
991} 1199}
992 1200
993/*****************************************************************************/ 1201/*****************************************************************************/
994 1202
1203/* associate signal watchers to a signal signal */
995typedef struct 1204typedef struct
996{ 1205{
1206 EV_ATOMIC_T pending;
1207#if EV_MULTIPLICITY
1208 EV_P;
1209#endif
997 WL head; 1210 WL head;
998 EV_ATOMIC_T gotsig;
999} ANSIG; 1211} ANSIG;
1000 1212
1001static ANSIG *signals; 1213static ANSIG signals [EV_NSIG - 1];
1002static int signalmax;
1003
1004static EV_ATOMIC_T gotsig;
1005 1214
1006/*****************************************************************************/ 1215/*****************************************************************************/
1007 1216
1008void inline_speed 1217#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1009fd_intern (int fd)
1010{
1011#ifdef _WIN32
1012 unsigned long arg = 1;
1013 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1014#else
1015 fcntl (fd, F_SETFD, FD_CLOEXEC);
1016 fcntl (fd, F_SETFL, O_NONBLOCK);
1017#endif
1018}
1019 1218
1020static void noinline 1219static void noinline
1021evpipe_init (EV_P) 1220evpipe_init (EV_P)
1022{ 1221{
1023 if (!ev_is_active (&pipeev)) 1222 if (!ev_is_active (&pipe_w))
1024 { 1223 {
1025#if EV_USE_EVENTFD 1224# if EV_USE_EVENTFD
1225 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1226 if (evfd < 0 && errno == EINVAL)
1026 if ((evfd = eventfd (0, 0)) >= 0) 1227 evfd = eventfd (0, 0);
1228
1229 if (evfd >= 0)
1027 { 1230 {
1028 evpipe [0] = -1; 1231 evpipe [0] = -1;
1029 fd_intern (evfd); 1232 fd_intern (evfd); /* doing it twice doesn't hurt */
1030 ev_io_set (&pipeev, evfd, EV_READ); 1233 ev_io_set (&pipe_w, evfd, EV_READ);
1031 } 1234 }
1032 else 1235 else
1033#endif 1236# endif
1034 { 1237 {
1035 while (pipe (evpipe)) 1238 while (pipe (evpipe))
1036 ev_syserr ("(libev) error creating signal/async pipe"); 1239 ev_syserr ("(libev) error creating signal/async pipe");
1037 1240
1038 fd_intern (evpipe [0]); 1241 fd_intern (evpipe [0]);
1039 fd_intern (evpipe [1]); 1242 fd_intern (evpipe [1]);
1040 ev_io_set (&pipeev, evpipe [0], EV_READ); 1243 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1041 } 1244 }
1042 1245
1043 ev_io_start (EV_A_ &pipeev); 1246 ev_io_start (EV_A_ &pipe_w);
1044 ev_unref (EV_A); /* watcher should not keep loop alive */ 1247 ev_unref (EV_A); /* watcher should not keep loop alive */
1045 } 1248 }
1046} 1249}
1047 1250
1048void inline_size 1251inline_size void
1049evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1252evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1050{ 1253{
1051 if (!*flag) 1254 if (!*flag)
1052 { 1255 {
1053 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;
1054 1258
1055 *flag = 1; 1259 *flag = 1;
1056 1260
1057#if EV_USE_EVENTFD 1261#if EV_USE_EVENTFD
1058 if (evfd >= 0) 1262 if (evfd >= 0)
… …
1060 uint64_t counter = 1; 1264 uint64_t counter = 1;
1061 write (evfd, &counter, sizeof (uint64_t)); 1265 write (evfd, &counter, sizeof (uint64_t));
1062 } 1266 }
1063 else 1267 else
1064#endif 1268#endif
1065 write (evpipe [1], &old_errno, 1); 1269 write (evpipe [1], &dummy, 1);
1066 1270
1067 errno = old_errno; 1271 errno = old_errno;
1068 } 1272 }
1069} 1273}
1070 1274
1275/* called whenever the libev signal pipe */
1276/* got some events (signal, async) */
1071static void 1277static void
1072pipecb (EV_P_ ev_io *iow, int revents) 1278pipecb (EV_P_ ev_io *iow, int revents)
1073{ 1279{
1280 int i;
1281
1074#if EV_USE_EVENTFD 1282#if EV_USE_EVENTFD
1075 if (evfd >= 0) 1283 if (evfd >= 0)
1076 { 1284 {
1077 uint64_t counter; 1285 uint64_t counter;
1078 read (evfd, &counter, sizeof (uint64_t)); 1286 read (evfd, &counter, sizeof (uint64_t));
… …
1082 { 1290 {
1083 char dummy; 1291 char dummy;
1084 read (evpipe [0], &dummy, 1); 1292 read (evpipe [0], &dummy, 1);
1085 } 1293 }
1086 1294
1087 if (gotsig && ev_is_default_loop (EV_A)) 1295 if (sig_pending)
1088 { 1296 {
1089 int signum; 1297 sig_pending = 0;
1090 gotsig = 0;
1091 1298
1092 for (signum = signalmax; signum--; ) 1299 for (i = EV_NSIG - 1; i--; )
1093 if (signals [signum].gotsig) 1300 if (expect_false (signals [i].pending))
1094 ev_feed_signal_event (EV_A_ signum + 1); 1301 ev_feed_signal_event (EV_A_ i + 1);
1095 } 1302 }
1096 1303
1097#if EV_ASYNC_ENABLE 1304#if EV_ASYNC_ENABLE
1098 if (gotasync) 1305 if (async_pending)
1099 { 1306 {
1100 int i; 1307 async_pending = 0;
1101 gotasync = 0;
1102 1308
1103 for (i = asynccnt; i--; ) 1309 for (i = asynccnt; i--; )
1104 if (asyncs [i]->sent) 1310 if (asyncs [i]->sent)
1105 { 1311 {
1106 asyncs [i]->sent = 0; 1312 asyncs [i]->sent = 0;
… …
1114 1320
1115static void 1321static void
1116ev_sighandler (int signum) 1322ev_sighandler (int signum)
1117{ 1323{
1118#if EV_MULTIPLICITY 1324#if EV_MULTIPLICITY
1119 struct ev_loop *loop = &default_loop_struct; 1325 EV_P = signals [signum - 1].loop;
1120#endif 1326#endif
1121 1327
1122#if _WIN32 1328#ifdef _WIN32
1123 signal (signum, ev_sighandler); 1329 signal (signum, ev_sighandler);
1124#endif 1330#endif
1125 1331
1126 signals [signum - 1].gotsig = 1; 1332 signals [signum - 1].pending = 1;
1127 evpipe_write (EV_A_ &gotsig); 1333 evpipe_write (EV_A_ &sig_pending);
1128} 1334}
1129 1335
1130void noinline 1336void noinline
1131ev_feed_signal_event (EV_P_ int signum) 1337ev_feed_signal_event (EV_P_ int signum)
1132{ 1338{
1133 WL w; 1339 WL w;
1134 1340
1341 if (expect_false (signum <= 0 || signum > EV_NSIG))
1342 return;
1343
1344 --signum;
1345
1135#if EV_MULTIPLICITY 1346#if EV_MULTIPLICITY
1136 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 */
1137#endif 1348 /* or, likely more useful, feeding a signal nobody is waiting for */
1138 1349
1139 --signum; 1350 if (expect_false (signals [signum].loop != EV_A))
1140
1141 if (signum < 0 || signum >= signalmax)
1142 return; 1351 return;
1352#endif
1143 1353
1144 signals [signum].gotsig = 0; 1354 signals [signum].pending = 0;
1145 1355
1146 for (w = signals [signum].head; w; w = w->next) 1356 for (w = signals [signum].head; w; w = w->next)
1147 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1357 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1148} 1358}
1149 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
1150/*****************************************************************************/ 1382/*****************************************************************************/
1151 1383
1384#if EV_CHILD_ENABLE
1152static WL childs [EV_PID_HASHSIZE]; 1385static WL childs [EV_PID_HASHSIZE];
1153
1154#ifndef _WIN32
1155 1386
1156static ev_signal childev; 1387static ev_signal childev;
1157 1388
1158#ifndef WIFCONTINUED 1389#ifndef WIFCONTINUED
1159# define WIFCONTINUED(status) 0 1390# define WIFCONTINUED(status) 0
1160#endif 1391#endif
1161 1392
1162void inline_speed 1393/* handle a single child status event */
1394inline_speed void
1163child_reap (EV_P_ int chain, int pid, int status) 1395child_reap (EV_P_ int chain, int pid, int status)
1164{ 1396{
1165 ev_child *w; 1397 ev_child *w;
1166 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1398 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1167 1399
1168 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)
1169 { 1401 {
1170 if ((w->pid == pid || !w->pid) 1402 if ((w->pid == pid || !w->pid)
1171 && (!traced || (w->flags & 1))) 1403 && (!traced || (w->flags & 1)))
1172 { 1404 {
1173 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 */
… …
1180 1412
1181#ifndef WCONTINUED 1413#ifndef WCONTINUED
1182# define WCONTINUED 0 1414# define WCONTINUED 0
1183#endif 1415#endif
1184 1416
1417/* called on sigchld etc., calls waitpid */
1185static void 1418static void
1186childcb (EV_P_ ev_signal *sw, int revents) 1419childcb (EV_P_ ev_signal *sw, int revents)
1187{ 1420{
1188 int pid, status; 1421 int pid, status;
1189 1422
… …
1197 /* 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 */
1198 /* 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 */
1199 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1432 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1200 1433
1201 child_reap (EV_A_ pid, pid, status); 1434 child_reap (EV_A_ pid, pid, status);
1202 if (EV_PID_HASHSIZE > 1) 1435 if ((EV_PID_HASHSIZE) > 1)
1203 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 */
1204} 1437}
1205 1438
1206#endif 1439#endif
1207 1440
… …
1270 /* kqueue is borked on everything but netbsd apparently */ 1503 /* kqueue is borked on everything but netbsd apparently */
1271 /* 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 */
1272 flags &= ~EVBACKEND_KQUEUE; 1505 flags &= ~EVBACKEND_KQUEUE;
1273#endif 1506#endif
1274#ifdef __APPLE__ 1507#ifdef __APPLE__
1275 // flags &= ~EVBACKEND_KQUEUE; for documentation 1508 /* only select works correctly on that "unix-certified" platform */
1276 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 */
1511#endif
1512#ifdef __FreeBSD__
1513 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1277#endif 1514#endif
1278 1515
1279 return flags; 1516 return flags;
1280} 1517}
1281 1518
… …
1295ev_backend (EV_P) 1532ev_backend (EV_P)
1296{ 1533{
1297 return backend; 1534 return backend;
1298} 1535}
1299 1536
1537#if EV_FEATURE_API
1300unsigned int 1538unsigned int
1301ev_loop_count (EV_P) 1539ev_iteration (EV_P)
1302{ 1540{
1303 return loop_count; 1541 return loop_count;
1304} 1542}
1305 1543
1544unsigned int
1545ev_depth (EV_P)
1546{
1547 return loop_depth;
1548}
1549
1306void 1550void
1307ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1551ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1308{ 1552{
1309 io_blocktime = interval; 1553 io_blocktime = interval;
1310} 1554}
… …
1313ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1557ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1314{ 1558{
1315 timeout_blocktime = interval; 1559 timeout_blocktime = interval;
1316} 1560}
1317 1561
1562void
1563ev_set_userdata (EV_P_ void *data)
1564{
1565 userdata = data;
1566}
1567
1568void *
1569ev_userdata (EV_P)
1570{
1571 return userdata;
1572}
1573
1574void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1575{
1576 invoke_cb = invoke_pending_cb;
1577}
1578
1579void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1580{
1581 release_cb = release;
1582 acquire_cb = acquire;
1583}
1584#endif
1585
1586/* initialise a loop structure, must be zero-initialised */
1318static void noinline 1587static void noinline
1319loop_init (EV_P_ unsigned int flags) 1588loop_init (EV_P_ unsigned int flags)
1320{ 1589{
1321 if (!backend) 1590 if (!backend)
1322 { 1591 {
1592#if EV_USE_REALTIME
1593 if (!have_realtime)
1594 {
1595 struct timespec ts;
1596
1597 if (!clock_gettime (CLOCK_REALTIME, &ts))
1598 have_realtime = 1;
1599 }
1600#endif
1601
1323#if EV_USE_MONOTONIC 1602#if EV_USE_MONOTONIC
1603 if (!have_monotonic)
1324 { 1604 {
1325 struct timespec ts; 1605 struct timespec ts;
1606
1326 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1607 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1327 have_monotonic = 1; 1608 have_monotonic = 1;
1328 } 1609 }
1329#endif 1610#endif
1611
1612 /* pid check not overridable via env */
1613#ifndef _WIN32
1614 if (flags & EVFLAG_FORKCHECK)
1615 curpid = getpid ();
1616#endif
1617
1618 if (!(flags & EVFLAG_NOENV)
1619 && !enable_secure ()
1620 && getenv ("LIBEV_FLAGS"))
1621 flags = atoi (getenv ("LIBEV_FLAGS"));
1330 1622
1331 ev_rt_now = ev_time (); 1623 ev_rt_now = ev_time ();
1332 mn_now = get_clock (); 1624 mn_now = get_clock ();
1333 now_floor = mn_now; 1625 now_floor = mn_now;
1334 rtmn_diff = ev_rt_now - mn_now; 1626 rtmn_diff = ev_rt_now - mn_now;
1627#if EV_FEATURE_API
1628 invoke_cb = ev_invoke_pending;
1629#endif
1335 1630
1336 io_blocktime = 0.; 1631 io_blocktime = 0.;
1337 timeout_blocktime = 0.; 1632 timeout_blocktime = 0.;
1338 backend = 0; 1633 backend = 0;
1339 backend_fd = -1; 1634 backend_fd = -1;
1340 gotasync = 0; 1635 sig_pending = 0;
1636#if EV_ASYNC_ENABLE
1637 async_pending = 0;
1638#endif
1341#if EV_USE_INOTIFY 1639#if EV_USE_INOTIFY
1342 fs_fd = -2; 1640 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1343#endif 1641#endif
1344 1642#if EV_USE_SIGNALFD
1345 /* pid check not overridable via env */ 1643 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1346#ifndef _WIN32
1347 if (flags & EVFLAG_FORKCHECK)
1348 curpid = getpid ();
1349#endif 1644#endif
1350
1351 if (!(flags & EVFLAG_NOENV)
1352 && !enable_secure ()
1353 && getenv ("LIBEV_FLAGS"))
1354 flags = atoi (getenv ("LIBEV_FLAGS"));
1355 1645
1356 if (!(flags & 0x0000ffffU)) 1646 if (!(flags & 0x0000ffffU))
1357 flags |= ev_recommended_backends (); 1647 flags |= ev_recommended_backends ();
1358 1648
1359#if EV_USE_PORT 1649#if EV_USE_PORT
… …
1370#endif 1660#endif
1371#if EV_USE_SELECT 1661#if EV_USE_SELECT
1372 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1662 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1373#endif 1663#endif
1374 1664
1665 ev_prepare_init (&pending_w, pendingcb);
1666
1667#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1375 ev_init (&pipeev, pipecb); 1668 ev_init (&pipe_w, pipecb);
1376 ev_set_priority (&pipeev, EV_MAXPRI); 1669 ev_set_priority (&pipe_w, EV_MAXPRI);
1670#endif
1377 } 1671 }
1378} 1672}
1379 1673
1674/* free up a loop structure */
1380static void noinline 1675static void noinline
1381loop_destroy (EV_P) 1676loop_destroy (EV_P)
1382{ 1677{
1383 int i; 1678 int i;
1384 1679
1385 if (ev_is_active (&pipeev)) 1680 if (ev_is_active (&pipe_w))
1386 { 1681 {
1387 ev_ref (EV_A); /* signal watcher */ 1682 /*ev_ref (EV_A);*/
1388 ev_io_stop (EV_A_ &pipeev); 1683 /*ev_io_stop (EV_A_ &pipe_w);*/
1389 1684
1390#if EV_USE_EVENTFD 1685#if EV_USE_EVENTFD
1391 if (evfd >= 0) 1686 if (evfd >= 0)
1392 close (evfd); 1687 close (evfd);
1393#endif 1688#endif
1394 1689
1395 if (evpipe [0] >= 0) 1690 if (evpipe [0] >= 0)
1396 { 1691 {
1397 close (evpipe [0]); 1692 EV_WIN32_CLOSE_FD (evpipe [0]);
1398 close (evpipe [1]); 1693 EV_WIN32_CLOSE_FD (evpipe [1]);
1399 } 1694 }
1400 } 1695 }
1696
1697#if EV_USE_SIGNALFD
1698 if (ev_is_active (&sigfd_w))
1699 close (sigfd);
1700#endif
1401 1701
1402#if EV_USE_INOTIFY 1702#if EV_USE_INOTIFY
1403 if (fs_fd >= 0) 1703 if (fs_fd >= 0)
1404 close (fs_fd); 1704 close (fs_fd);
1405#endif 1705#endif
… …
1429#if EV_IDLE_ENABLE 1729#if EV_IDLE_ENABLE
1430 array_free (idle, [i]); 1730 array_free (idle, [i]);
1431#endif 1731#endif
1432 } 1732 }
1433 1733
1434 ev_free (anfds); anfdmax = 0; 1734 ev_free (anfds); anfds = 0; anfdmax = 0;
1435 1735
1436 /* have to use the microsoft-never-gets-it-right macro */ 1736 /* have to use the microsoft-never-gets-it-right macro */
1737 array_free (rfeed, EMPTY);
1437 array_free (fdchange, EMPTY); 1738 array_free (fdchange, EMPTY);
1438 array_free (timer, EMPTY); 1739 array_free (timer, EMPTY);
1439#if EV_PERIODIC_ENABLE 1740#if EV_PERIODIC_ENABLE
1440 array_free (periodic, EMPTY); 1741 array_free (periodic, EMPTY);
1441#endif 1742#endif
… …
1450 1751
1451 backend = 0; 1752 backend = 0;
1452} 1753}
1453 1754
1454#if EV_USE_INOTIFY 1755#if EV_USE_INOTIFY
1455void inline_size infy_fork (EV_P); 1756inline_size void infy_fork (EV_P);
1456#endif 1757#endif
1457 1758
1458void inline_size 1759inline_size void
1459loop_fork (EV_P) 1760loop_fork (EV_P)
1460{ 1761{
1461#if EV_USE_PORT 1762#if EV_USE_PORT
1462 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1763 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1463#endif 1764#endif
… …
1469#endif 1770#endif
1470#if EV_USE_INOTIFY 1771#if EV_USE_INOTIFY
1471 infy_fork (EV_A); 1772 infy_fork (EV_A);
1472#endif 1773#endif
1473 1774
1474 if (ev_is_active (&pipeev)) 1775 if (ev_is_active (&pipe_w))
1475 { 1776 {
1476 /* this "locks" the handlers against writing to the pipe */ 1777 /* this "locks" the handlers against writing to the pipe */
1477 /* while we modify the fd vars */ 1778 /* while we modify the fd vars */
1478 gotsig = 1; 1779 sig_pending = 1;
1479#if EV_ASYNC_ENABLE 1780#if EV_ASYNC_ENABLE
1480 gotasync = 1; 1781 async_pending = 1;
1481#endif 1782#endif
1482 1783
1483 ev_ref (EV_A); 1784 ev_ref (EV_A);
1484 ev_io_stop (EV_A_ &pipeev); 1785 ev_io_stop (EV_A_ &pipe_w);
1485 1786
1486#if EV_USE_EVENTFD 1787#if EV_USE_EVENTFD
1487 if (evfd >= 0) 1788 if (evfd >= 0)
1488 close (evfd); 1789 close (evfd);
1489#endif 1790#endif
1490 1791
1491 if (evpipe [0] >= 0) 1792 if (evpipe [0] >= 0)
1492 { 1793 {
1493 close (evpipe [0]); 1794 EV_WIN32_CLOSE_FD (evpipe [0]);
1494 close (evpipe [1]); 1795 EV_WIN32_CLOSE_FD (evpipe [1]);
1495 } 1796 }
1496 1797
1798#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1497 evpipe_init (EV_A); 1799 evpipe_init (EV_A);
1498 /* now iterate over everything, in case we missed something */ 1800 /* now iterate over everything, in case we missed something */
1499 pipecb (EV_A_ &pipeev, EV_READ); 1801 pipecb (EV_A_ &pipe_w, EV_READ);
1802#endif
1500 } 1803 }
1501 1804
1502 postfork = 0; 1805 postfork = 0;
1503} 1806}
1504 1807
1505#if EV_MULTIPLICITY 1808#if EV_MULTIPLICITY
1506 1809
1507struct ev_loop * 1810struct ev_loop *
1508ev_loop_new (unsigned int flags) 1811ev_loop_new (unsigned int flags)
1509{ 1812{
1510 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1813 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1511 1814
1512 memset (loop, 0, sizeof (struct ev_loop)); 1815 memset (EV_A, 0, sizeof (struct ev_loop));
1513
1514 loop_init (EV_A_ flags); 1816 loop_init (EV_A_ flags);
1515 1817
1516 if (ev_backend (EV_A)) 1818 if (ev_backend (EV_A))
1517 return loop; 1819 return EV_A;
1518 1820
1519 return 0; 1821 return 0;
1520} 1822}
1521 1823
1522void 1824void
… …
1529void 1831void
1530ev_loop_fork (EV_P) 1832ev_loop_fork (EV_P)
1531{ 1833{
1532 postfork = 1; /* must be in line with ev_default_fork */ 1834 postfork = 1; /* must be in line with ev_default_fork */
1533} 1835}
1836#endif /* multiplicity */
1534 1837
1535#if EV_VERIFY 1838#if EV_VERIFY
1536static void noinline 1839static void noinline
1537verify_watcher (EV_P_ W w) 1840verify_watcher (EV_P_ W w)
1538{ 1841{
1539 assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 1842 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1540 1843
1541 if (w->pending) 1844 if (w->pending)
1542 assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 1845 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1543} 1846}
1544 1847
1545static void noinline 1848static void noinline
1546verify_heap (EV_P_ ANHE *heap, int N) 1849verify_heap (EV_P_ ANHE *heap, int N)
1547{ 1850{
1548 int i; 1851 int i;
1549 1852
1550 for (i = HEAP0; i < N + HEAP0; ++i) 1853 for (i = HEAP0; i < N + HEAP0; ++i)
1551 { 1854 {
1552 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); 1855 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1553 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); 1856 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1554 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); 1857 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1555 1858
1556 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 1859 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1557 } 1860 }
1558} 1861}
1559 1862
1560static void noinline 1863static void noinline
1561array_verify (EV_P_ W *ws, int cnt) 1864array_verify (EV_P_ W *ws, int cnt)
1562{ 1865{
1563 while (cnt--) 1866 while (cnt--)
1564 { 1867 {
1565 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 1868 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1566 verify_watcher (EV_A_ ws [cnt]); 1869 verify_watcher (EV_A_ ws [cnt]);
1567 } 1870 }
1568} 1871}
1569#endif 1872#endif
1570 1873
1874#if EV_FEATURE_API
1571void 1875void
1572ev_loop_verify (EV_P) 1876ev_verify (EV_P)
1573{ 1877{
1574#if EV_VERIFY 1878#if EV_VERIFY
1575 int i; 1879 int i;
1576 WL w; 1880 WL w;
1577 1881
1578 assert (activecnt >= -1); 1882 assert (activecnt >= -1);
1579 1883
1580 assert (fdchangemax >= fdchangecnt); 1884 assert (fdchangemax >= fdchangecnt);
1581 for (i = 0; i < fdchangecnt; ++i) 1885 for (i = 0; i < fdchangecnt; ++i)
1582 assert (("negative fd in fdchanges", fdchanges [i] >= 0)); 1886 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1583 1887
1584 assert (anfdmax >= 0); 1888 assert (anfdmax >= 0);
1585 for (i = 0; i < anfdmax; ++i) 1889 for (i = 0; i < anfdmax; ++i)
1586 for (w = anfds [i].head; w; w = w->next) 1890 for (w = anfds [i].head; w; w = w->next)
1587 { 1891 {
1588 verify_watcher (EV_A_ (W)w); 1892 verify_watcher (EV_A_ (W)w);
1589 assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); 1893 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1590 assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 1894 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1591 } 1895 }
1592 1896
1593 assert (timermax >= timercnt); 1897 assert (timermax >= timercnt);
1594 verify_heap (EV_A_ timers, timercnt); 1898 verify_heap (EV_A_ timers, timercnt);
1595 1899
… …
1616#if EV_ASYNC_ENABLE 1920#if EV_ASYNC_ENABLE
1617 assert (asyncmax >= asynccnt); 1921 assert (asyncmax >= asynccnt);
1618 array_verify (EV_A_ (W *)asyncs, asynccnt); 1922 array_verify (EV_A_ (W *)asyncs, asynccnt);
1619#endif 1923#endif
1620 1924
1925#if EV_PREPARE_ENABLE
1621 assert (preparemax >= preparecnt); 1926 assert (preparemax >= preparecnt);
1622 array_verify (EV_A_ (W *)prepares, preparecnt); 1927 array_verify (EV_A_ (W *)prepares, preparecnt);
1928#endif
1623 1929
1930#if EV_CHECK_ENABLE
1624 assert (checkmax >= checkcnt); 1931 assert (checkmax >= checkcnt);
1625 array_verify (EV_A_ (W *)checks, checkcnt); 1932 array_verify (EV_A_ (W *)checks, checkcnt);
1933#endif
1626 1934
1627# if 0 1935# if 0
1936#if EV_CHILD_ENABLE
1628 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1937 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1629 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 1938 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1630# endif 1939#endif
1631#endif 1940# endif
1941#endif
1632} 1942}
1633 1943#endif
1634#endif /* multiplicity */
1635 1944
1636#if EV_MULTIPLICITY 1945#if EV_MULTIPLICITY
1637struct ev_loop * 1946struct ev_loop *
1638ev_default_loop_init (unsigned int flags) 1947ev_default_loop_init (unsigned int flags)
1639#else 1948#else
… …
1642#endif 1951#endif
1643{ 1952{
1644 if (!ev_default_loop_ptr) 1953 if (!ev_default_loop_ptr)
1645 { 1954 {
1646#if EV_MULTIPLICITY 1955#if EV_MULTIPLICITY
1647 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1956 EV_P = ev_default_loop_ptr = &default_loop_struct;
1648#else 1957#else
1649 ev_default_loop_ptr = 1; 1958 ev_default_loop_ptr = 1;
1650#endif 1959#endif
1651 1960
1652 loop_init (EV_A_ flags); 1961 loop_init (EV_A_ flags);
1653 1962
1654 if (ev_backend (EV_A)) 1963 if (ev_backend (EV_A))
1655 { 1964 {
1656#ifndef _WIN32 1965#if EV_CHILD_ENABLE
1657 ev_signal_init (&childev, childcb, SIGCHLD); 1966 ev_signal_init (&childev, childcb, SIGCHLD);
1658 ev_set_priority (&childev, EV_MAXPRI); 1967 ev_set_priority (&childev, EV_MAXPRI);
1659 ev_signal_start (EV_A_ &childev); 1968 ev_signal_start (EV_A_ &childev);
1660 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1969 ev_unref (EV_A); /* child watcher should not keep loop alive */
1661#endif 1970#endif
… …
1669 1978
1670void 1979void
1671ev_default_destroy (void) 1980ev_default_destroy (void)
1672{ 1981{
1673#if EV_MULTIPLICITY 1982#if EV_MULTIPLICITY
1674 struct ev_loop *loop = ev_default_loop_ptr; 1983 EV_P = ev_default_loop_ptr;
1675#endif 1984#endif
1676 1985
1677 ev_default_loop_ptr = 0; 1986 ev_default_loop_ptr = 0;
1678 1987
1679#ifndef _WIN32 1988#if EV_CHILD_ENABLE
1680 ev_ref (EV_A); /* child watcher */ 1989 ev_ref (EV_A); /* child watcher */
1681 ev_signal_stop (EV_A_ &childev); 1990 ev_signal_stop (EV_A_ &childev);
1682#endif 1991#endif
1683 1992
1684 loop_destroy (EV_A); 1993 loop_destroy (EV_A);
… …
1686 1995
1687void 1996void
1688ev_default_fork (void) 1997ev_default_fork (void)
1689{ 1998{
1690#if EV_MULTIPLICITY 1999#if EV_MULTIPLICITY
1691 struct ev_loop *loop = ev_default_loop_ptr; 2000 EV_P = ev_default_loop_ptr;
1692#endif 2001#endif
1693 2002
1694 postfork = 1; /* must be in line with ev_loop_fork */ 2003 postfork = 1; /* must be in line with ev_loop_fork */
1695} 2004}
1696 2005
… …
1700ev_invoke (EV_P_ void *w, int revents) 2009ev_invoke (EV_P_ void *w, int revents)
1701{ 2010{
1702 EV_CB_INVOKE ((W)w, revents); 2011 EV_CB_INVOKE ((W)w, revents);
1703} 2012}
1704 2013
1705void inline_speed 2014unsigned int
1706call_pending (EV_P) 2015ev_pending_count (EV_P)
2016{
2017 int pri;
2018 unsigned int count = 0;
2019
2020 for (pri = NUMPRI; pri--; )
2021 count += pendingcnt [pri];
2022
2023 return count;
2024}
2025
2026void noinline
2027ev_invoke_pending (EV_P)
1707{ 2028{
1708 int pri; 2029 int pri;
1709 2030
1710 for (pri = NUMPRI; pri--; ) 2031 for (pri = NUMPRI; pri--; )
1711 while (pendingcnt [pri]) 2032 while (pendingcnt [pri])
1712 { 2033 {
1713 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2034 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1714 2035
1715 if (expect_true (p->w))
1716 {
1717 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 2036 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2037 /* ^ this is no longer true, as pending_w could be here */
1718 2038
1719 p->w->pending = 0; 2039 p->w->pending = 0;
1720 EV_CB_INVOKE (p->w, p->events); 2040 EV_CB_INVOKE (p->w, p->events);
1721 EV_FREQUENT_CHECK; 2041 EV_FREQUENT_CHECK;
1722 }
1723 } 2042 }
1724} 2043}
1725 2044
1726#if EV_IDLE_ENABLE 2045#if EV_IDLE_ENABLE
1727void inline_size 2046/* make idle watchers pending. this handles the "call-idle */
2047/* only when higher priorities are idle" logic */
2048inline_size void
1728idle_reify (EV_P) 2049idle_reify (EV_P)
1729{ 2050{
1730 if (expect_false (idleall)) 2051 if (expect_false (idleall))
1731 { 2052 {
1732 int pri; 2053 int pri;
… …
1744 } 2065 }
1745 } 2066 }
1746} 2067}
1747#endif 2068#endif
1748 2069
1749void inline_size 2070/* make timers pending */
2071inline_size void
1750timers_reify (EV_P) 2072timers_reify (EV_P)
1751{ 2073{
1752 EV_FREQUENT_CHECK; 2074 EV_FREQUENT_CHECK;
1753 2075
1754 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) 2076 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1755 { 2077 {
1756 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); 2078 do
1757
1758 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1759
1760 /* first reschedule or stop timer */
1761 if (w->repeat)
1762 { 2079 {
2080 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2081
2082 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2083
2084 /* first reschedule or stop timer */
2085 if (w->repeat)
2086 {
1763 ev_at (w) += w->repeat; 2087 ev_at (w) += w->repeat;
1764 if (ev_at (w) < mn_now) 2088 if (ev_at (w) < mn_now)
1765 ev_at (w) = mn_now; 2089 ev_at (w) = mn_now;
1766 2090
1767 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 2091 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1768 2092
1769 ANHE_at_cache (timers [HEAP0]); 2093 ANHE_at_cache (timers [HEAP0]);
1770 downheap (timers, timercnt, HEAP0); 2094 downheap (timers, timercnt, HEAP0);
2095 }
2096 else
2097 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2098
2099 EV_FREQUENT_CHECK;
2100 feed_reverse (EV_A_ (W)w);
1771 } 2101 }
1772 else 2102 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1773 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1774 2103
1775 EV_FREQUENT_CHECK; 2104 feed_reverse_done (EV_A_ EV_TIMER);
1776 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1777 } 2105 }
1778} 2106}
1779 2107
1780#if EV_PERIODIC_ENABLE 2108#if EV_PERIODIC_ENABLE
1781void inline_size 2109/* make periodics pending */
2110inline_size void
1782periodics_reify (EV_P) 2111periodics_reify (EV_P)
1783{ 2112{
1784 EV_FREQUENT_CHECK; 2113 EV_FREQUENT_CHECK;
1785 2114
1786 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2115 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1787 { 2116 {
1788 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2117 int feed_count = 0;
1789 2118
1790 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 2119 do
1791
1792 /* first reschedule or stop timer */
1793 if (w->reschedule_cb)
1794 { 2120 {
2121 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2122
2123 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2124
2125 /* first reschedule or stop timer */
2126 if (w->reschedule_cb)
2127 {
1795 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2128 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1796 2129
1797 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); 2130 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1798 2131
1799 ANHE_at_cache (periodics [HEAP0]); 2132 ANHE_at_cache (periodics [HEAP0]);
1800 downheap (periodics, periodiccnt, HEAP0); 2133 downheap (periodics, periodiccnt, HEAP0);
2134 }
2135 else if (w->interval)
2136 {
2137 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2138 /* if next trigger time is not sufficiently in the future, put it there */
2139 /* this might happen because of floating point inexactness */
2140 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2141 {
2142 ev_at (w) += w->interval;
2143
2144 /* if interval is unreasonably low we might still have a time in the past */
2145 /* so correct this. this will make the periodic very inexact, but the user */
2146 /* has effectively asked to get triggered more often than possible */
2147 if (ev_at (w) < ev_rt_now)
2148 ev_at (w) = ev_rt_now;
2149 }
2150
2151 ANHE_at_cache (periodics [HEAP0]);
2152 downheap (periodics, periodiccnt, HEAP0);
2153 }
2154 else
2155 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2156
2157 EV_FREQUENT_CHECK;
2158 feed_reverse (EV_A_ (W)w);
1801 } 2159 }
1802 else if (w->interval) 2160 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1803 {
1804 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1805 /* if next trigger time is not sufficiently in the future, put it there */
1806 /* this might happen because of floating point inexactness */
1807 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1808 {
1809 ev_at (w) += w->interval;
1810 2161
1811 /* if interval is unreasonably low we might still have a time in the past */
1812 /* so correct this. this will make the periodic very inexact, but the user */
1813 /* has effectively asked to get triggered more often than possible */
1814 if (ev_at (w) < ev_rt_now)
1815 ev_at (w) = ev_rt_now;
1816 }
1817
1818 ANHE_at_cache (periodics [HEAP0]);
1819 downheap (periodics, periodiccnt, HEAP0);
1820 }
1821 else
1822 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1823
1824 EV_FREQUENT_CHECK;
1825 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 2162 feed_reverse_done (EV_A_ EV_PERIODIC);
1826 } 2163 }
1827} 2164}
1828 2165
2166/* simply recalculate all periodics */
2167/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1829static void noinline 2168static void noinline
1830periodics_reschedule (EV_P) 2169periodics_reschedule (EV_P)
1831{ 2170{
1832 int i; 2171 int i;
1833 2172
… …
1846 2185
1847 reheap (periodics, periodiccnt); 2186 reheap (periodics, periodiccnt);
1848} 2187}
1849#endif 2188#endif
1850 2189
1851void inline_speed 2190/* adjust all timers by a given offset */
2191static void noinline
2192timers_reschedule (EV_P_ ev_tstamp adjust)
2193{
2194 int i;
2195
2196 for (i = 0; i < timercnt; ++i)
2197 {
2198 ANHE *he = timers + i + HEAP0;
2199 ANHE_w (*he)->at += adjust;
2200 ANHE_at_cache (*he);
2201 }
2202}
2203
2204/* fetch new monotonic and realtime times from the kernel */
2205/* also detect if there was a timejump, and act accordingly */
2206inline_speed void
1852time_update (EV_P_ ev_tstamp max_block) 2207time_update (EV_P_ ev_tstamp max_block)
1853{ 2208{
1854 int i;
1855
1856#if EV_USE_MONOTONIC 2209#if EV_USE_MONOTONIC
1857 if (expect_true (have_monotonic)) 2210 if (expect_true (have_monotonic))
1858 { 2211 {
2212 int i;
1859 ev_tstamp odiff = rtmn_diff; 2213 ev_tstamp odiff = rtmn_diff;
1860 2214
1861 mn_now = get_clock (); 2215 mn_now = get_clock ();
1862 2216
1863 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2217 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1889 ev_rt_now = ev_time (); 2243 ev_rt_now = ev_time ();
1890 mn_now = get_clock (); 2244 mn_now = get_clock ();
1891 now_floor = mn_now; 2245 now_floor = mn_now;
1892 } 2246 }
1893 2247
2248 /* no timer adjustment, as the monotonic clock doesn't jump */
2249 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1894# if EV_PERIODIC_ENABLE 2250# if EV_PERIODIC_ENABLE
1895 periodics_reschedule (EV_A); 2251 periodics_reschedule (EV_A);
1896# endif 2252# endif
1897 /* no timer adjustment, as the monotonic clock doesn't jump */
1898 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1899 } 2253 }
1900 else 2254 else
1901#endif 2255#endif
1902 { 2256 {
1903 ev_rt_now = ev_time (); 2257 ev_rt_now = ev_time ();
1904 2258
1905 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2259 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1906 { 2260 {
2261 /* adjust timers. this is easy, as the offset is the same for all of them */
2262 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1907#if EV_PERIODIC_ENABLE 2263#if EV_PERIODIC_ENABLE
1908 periodics_reschedule (EV_A); 2264 periodics_reschedule (EV_A);
1909#endif 2265#endif
1910 /* adjust timers. this is easy, as the offset is the same for all of them */
1911 for (i = 0; i < timercnt; ++i)
1912 {
1913 ANHE *he = timers + i + HEAP0;
1914 ANHE_w (*he)->at += ev_rt_now - mn_now;
1915 ANHE_at_cache (*he);
1916 }
1917 } 2266 }
1918 2267
1919 mn_now = ev_rt_now; 2268 mn_now = ev_rt_now;
1920 } 2269 }
1921} 2270}
1922 2271
1923void 2272void
1924ev_ref (EV_P)
1925{
1926 ++activecnt;
1927}
1928
1929void
1930ev_unref (EV_P)
1931{
1932 --activecnt;
1933}
1934
1935void
1936ev_now_update (EV_P)
1937{
1938 time_update (EV_A_ 1e100);
1939}
1940
1941static int loop_done;
1942
1943void
1944ev_loop (EV_P_ int flags) 2273ev_loop (EV_P_ int flags)
1945{ 2274{
2275#if EV_FEATURE_API
2276 ++loop_depth;
2277#endif
2278
2279 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2280
1946 loop_done = EVUNLOOP_CANCEL; 2281 loop_done = EVUNLOOP_CANCEL;
1947 2282
1948 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2283 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1949 2284
1950 do 2285 do
1951 { 2286 {
1952#if EV_VERIFY >= 2 2287#if EV_VERIFY >= 2
1953 ev_loop_verify (EV_A); 2288 ev_verify (EV_A);
1954#endif 2289#endif
1955 2290
1956#ifndef _WIN32 2291#ifndef _WIN32
1957 if (expect_false (curpid)) /* penalise the forking check even more */ 2292 if (expect_false (curpid)) /* penalise the forking check even more */
1958 if (expect_false (getpid () != curpid)) 2293 if (expect_false (getpid () != curpid))
… …
1966 /* we might have forked, so queue fork handlers */ 2301 /* we might have forked, so queue fork handlers */
1967 if (expect_false (postfork)) 2302 if (expect_false (postfork))
1968 if (forkcnt) 2303 if (forkcnt)
1969 { 2304 {
1970 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2305 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1971 call_pending (EV_A); 2306 EV_INVOKE_PENDING;
1972 } 2307 }
1973#endif 2308#endif
1974 2309
2310#if EV_PREPARE_ENABLE
1975 /* queue prepare watchers (and execute them) */ 2311 /* queue prepare watchers (and execute them) */
1976 if (expect_false (preparecnt)) 2312 if (expect_false (preparecnt))
1977 { 2313 {
1978 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2314 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1979 call_pending (EV_A); 2315 EV_INVOKE_PENDING;
1980 } 2316 }
2317#endif
1981 2318
1982 if (expect_false (!activecnt)) 2319 if (expect_false (loop_done))
1983 break; 2320 break;
1984 2321
1985 /* we might have forked, so reify kernel state if necessary */ 2322 /* we might have forked, so reify kernel state if necessary */
1986 if (expect_false (postfork)) 2323 if (expect_false (postfork))
1987 loop_fork (EV_A); 2324 loop_fork (EV_A);
… …
1994 ev_tstamp waittime = 0.; 2331 ev_tstamp waittime = 0.;
1995 ev_tstamp sleeptime = 0.; 2332 ev_tstamp sleeptime = 0.;
1996 2333
1997 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2334 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1998 { 2335 {
2336 /* remember old timestamp for io_blocktime calculation */
2337 ev_tstamp prev_mn_now = mn_now;
2338
1999 /* update time to cancel out callback processing overhead */ 2339 /* update time to cancel out callback processing overhead */
2000 time_update (EV_A_ 1e100); 2340 time_update (EV_A_ 1e100);
2001 2341
2002 waittime = MAX_BLOCKTIME; 2342 waittime = MAX_BLOCKTIME;
2003 2343
… …
2013 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2353 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2014 if (waittime > to) waittime = to; 2354 if (waittime > to) waittime = to;
2015 } 2355 }
2016#endif 2356#endif
2017 2357
2358 /* don't let timeouts decrease the waittime below timeout_blocktime */
2018 if (expect_false (waittime < timeout_blocktime)) 2359 if (expect_false (waittime < timeout_blocktime))
2019 waittime = timeout_blocktime; 2360 waittime = timeout_blocktime;
2020 2361
2021 sleeptime = waittime - backend_fudge; 2362 /* extra check because io_blocktime is commonly 0 */
2022
2023 if (expect_true (sleeptime > io_blocktime)) 2363 if (expect_false (io_blocktime))
2024 sleeptime = io_blocktime;
2025
2026 if (sleeptime)
2027 { 2364 {
2365 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2366
2367 if (sleeptime > waittime - backend_fudge)
2368 sleeptime = waittime - backend_fudge;
2369
2370 if (expect_true (sleeptime > 0.))
2371 {
2028 ev_sleep (sleeptime); 2372 ev_sleep (sleeptime);
2029 waittime -= sleeptime; 2373 waittime -= sleeptime;
2374 }
2030 } 2375 }
2031 } 2376 }
2032 2377
2378#if EV_FEATURE_API
2033 ++loop_count; 2379 ++loop_count;
2380#endif
2381 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2034 backend_poll (EV_A_ waittime); 2382 backend_poll (EV_A_ waittime);
2383 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2035 2384
2036 /* update ev_rt_now, do magic */ 2385 /* update ev_rt_now, do magic */
2037 time_update (EV_A_ waittime + sleeptime); 2386 time_update (EV_A_ waittime + sleeptime);
2038 } 2387 }
2039 2388
… …
2046#if EV_IDLE_ENABLE 2395#if EV_IDLE_ENABLE
2047 /* queue idle watchers unless other events are pending */ 2396 /* queue idle watchers unless other events are pending */
2048 idle_reify (EV_A); 2397 idle_reify (EV_A);
2049#endif 2398#endif
2050 2399
2400#if EV_CHECK_ENABLE
2051 /* queue check watchers, to be executed first */ 2401 /* queue check watchers, to be executed first */
2052 if (expect_false (checkcnt)) 2402 if (expect_false (checkcnt))
2053 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2403 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2404#endif
2054 2405
2055 call_pending (EV_A); 2406 EV_INVOKE_PENDING;
2056 } 2407 }
2057 while (expect_true ( 2408 while (expect_true (
2058 activecnt 2409 activecnt
2059 && !loop_done 2410 && !loop_done
2060 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2411 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2061 )); 2412 ));
2062 2413
2063 if (loop_done == EVUNLOOP_ONE) 2414 if (loop_done == EVUNLOOP_ONE)
2064 loop_done = EVUNLOOP_CANCEL; 2415 loop_done = EVUNLOOP_CANCEL;
2416
2417#if EV_FEATURE_API
2418 --loop_depth;
2419#endif
2065} 2420}
2066 2421
2067void 2422void
2068ev_unloop (EV_P_ int how) 2423ev_unloop (EV_P_ int how)
2069{ 2424{
2070 loop_done = how; 2425 loop_done = how;
2071} 2426}
2072 2427
2428void
2429ev_ref (EV_P)
2430{
2431 ++activecnt;
2432}
2433
2434void
2435ev_unref (EV_P)
2436{
2437 --activecnt;
2438}
2439
2440void
2441ev_now_update (EV_P)
2442{
2443 time_update (EV_A_ 1e100);
2444}
2445
2446void
2447ev_suspend (EV_P)
2448{
2449 ev_now_update (EV_A);
2450}
2451
2452void
2453ev_resume (EV_P)
2454{
2455 ev_tstamp mn_prev = mn_now;
2456
2457 ev_now_update (EV_A);
2458 timers_reschedule (EV_A_ mn_now - mn_prev);
2459#if EV_PERIODIC_ENABLE
2460 /* TODO: really do this? */
2461 periodics_reschedule (EV_A);
2462#endif
2463}
2464
2073/*****************************************************************************/ 2465/*****************************************************************************/
2466/* singly-linked list management, used when the expected list length is short */
2074 2467
2075void inline_size 2468inline_size void
2076wlist_add (WL *head, WL elem) 2469wlist_add (WL *head, WL elem)
2077{ 2470{
2078 elem->next = *head; 2471 elem->next = *head;
2079 *head = elem; 2472 *head = elem;
2080} 2473}
2081 2474
2082void inline_size 2475inline_size void
2083wlist_del (WL *head, WL elem) 2476wlist_del (WL *head, WL elem)
2084{ 2477{
2085 while (*head) 2478 while (*head)
2086 { 2479 {
2087 if (*head == elem) 2480 if (expect_true (*head == elem))
2088 { 2481 {
2089 *head = elem->next; 2482 *head = elem->next;
2090 return; 2483 break;
2091 } 2484 }
2092 2485
2093 head = &(*head)->next; 2486 head = &(*head)->next;
2094 } 2487 }
2095} 2488}
2096 2489
2097void inline_speed 2490/* internal, faster, version of ev_clear_pending */
2491inline_speed void
2098clear_pending (EV_P_ W w) 2492clear_pending (EV_P_ W w)
2099{ 2493{
2100 if (w->pending) 2494 if (w->pending)
2101 { 2495 {
2102 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2496 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2103 w->pending = 0; 2497 w->pending = 0;
2104 } 2498 }
2105} 2499}
2106 2500
2107int 2501int
… …
2111 int pending = w_->pending; 2505 int pending = w_->pending;
2112 2506
2113 if (expect_true (pending)) 2507 if (expect_true (pending))
2114 { 2508 {
2115 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2509 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2510 p->w = (W)&pending_w;
2116 w_->pending = 0; 2511 w_->pending = 0;
2117 p->w = 0;
2118 return p->events; 2512 return p->events;
2119 } 2513 }
2120 else 2514 else
2121 return 0; 2515 return 0;
2122} 2516}
2123 2517
2124void inline_size 2518inline_size void
2125pri_adjust (EV_P_ W w) 2519pri_adjust (EV_P_ W w)
2126{ 2520{
2127 int pri = w->priority; 2521 int pri = ev_priority (w);
2128 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2522 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2129 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2523 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2130 w->priority = pri; 2524 ev_set_priority (w, pri);
2131} 2525}
2132 2526
2133void inline_speed 2527inline_speed void
2134ev_start (EV_P_ W w, int active) 2528ev_start (EV_P_ W w, int active)
2135{ 2529{
2136 pri_adjust (EV_A_ w); 2530 pri_adjust (EV_A_ w);
2137 w->active = active; 2531 w->active = active;
2138 ev_ref (EV_A); 2532 ev_ref (EV_A);
2139} 2533}
2140 2534
2141void inline_size 2535inline_size void
2142ev_stop (EV_P_ W w) 2536ev_stop (EV_P_ W w)
2143{ 2537{
2144 ev_unref (EV_A); 2538 ev_unref (EV_A);
2145 w->active = 0; 2539 w->active = 0;
2146} 2540}
… …
2153 int fd = w->fd; 2547 int fd = w->fd;
2154 2548
2155 if (expect_false (ev_is_active (w))) 2549 if (expect_false (ev_is_active (w)))
2156 return; 2550 return;
2157 2551
2158 assert (("ev_io_start called with negative fd", fd >= 0)); 2552 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2159 assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); 2553 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2160 2554
2161 EV_FREQUENT_CHECK; 2555 EV_FREQUENT_CHECK;
2162 2556
2163 ev_start (EV_A_ (W)w, 1); 2557 ev_start (EV_A_ (W)w, 1);
2164 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2558 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2165 wlist_add (&anfds[fd].head, (WL)w); 2559 wlist_add (&anfds[fd].head, (WL)w);
2166 2560
2167 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2561 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2168 w->events &= ~EV_IOFDSET; 2562 w->events &= ~EV__IOFDSET;
2169 2563
2170 EV_FREQUENT_CHECK; 2564 EV_FREQUENT_CHECK;
2171} 2565}
2172 2566
2173void noinline 2567void noinline
… …
2175{ 2569{
2176 clear_pending (EV_A_ (W)w); 2570 clear_pending (EV_A_ (W)w);
2177 if (expect_false (!ev_is_active (w))) 2571 if (expect_false (!ev_is_active (w)))
2178 return; 2572 return;
2179 2573
2180 assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2574 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2181 2575
2182 EV_FREQUENT_CHECK; 2576 EV_FREQUENT_CHECK;
2183 2577
2184 wlist_del (&anfds[w->fd].head, (WL)w); 2578 wlist_del (&anfds[w->fd].head, (WL)w);
2185 ev_stop (EV_A_ (W)w); 2579 ev_stop (EV_A_ (W)w);
… …
2195 if (expect_false (ev_is_active (w))) 2589 if (expect_false (ev_is_active (w)))
2196 return; 2590 return;
2197 2591
2198 ev_at (w) += mn_now; 2592 ev_at (w) += mn_now;
2199 2593
2200 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2594 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2201 2595
2202 EV_FREQUENT_CHECK; 2596 EV_FREQUENT_CHECK;
2203 2597
2204 ++timercnt; 2598 ++timercnt;
2205 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 2599 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
… …
2208 ANHE_at_cache (timers [ev_active (w)]); 2602 ANHE_at_cache (timers [ev_active (w)]);
2209 upheap (timers, ev_active (w)); 2603 upheap (timers, ev_active (w));
2210 2604
2211 EV_FREQUENT_CHECK; 2605 EV_FREQUENT_CHECK;
2212 2606
2213 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 2607 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2214} 2608}
2215 2609
2216void noinline 2610void noinline
2217ev_timer_stop (EV_P_ ev_timer *w) 2611ev_timer_stop (EV_P_ ev_timer *w)
2218{ 2612{
… …
2223 EV_FREQUENT_CHECK; 2617 EV_FREQUENT_CHECK;
2224 2618
2225 { 2619 {
2226 int active = ev_active (w); 2620 int active = ev_active (w);
2227 2621
2228 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 2622 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2229 2623
2230 --timercnt; 2624 --timercnt;
2231 2625
2232 if (expect_true (active < timercnt + HEAP0)) 2626 if (expect_true (active < timercnt + HEAP0))
2233 { 2627 {
2234 timers [active] = timers [timercnt + HEAP0]; 2628 timers [active] = timers [timercnt + HEAP0];
2235 adjustheap (timers, timercnt, active); 2629 adjustheap (timers, timercnt, active);
2236 } 2630 }
2237 } 2631 }
2238 2632
2239 EV_FREQUENT_CHECK;
2240
2241 ev_at (w) -= mn_now; 2633 ev_at (w) -= mn_now;
2242 2634
2243 ev_stop (EV_A_ (W)w); 2635 ev_stop (EV_A_ (W)w);
2636
2637 EV_FREQUENT_CHECK;
2244} 2638}
2245 2639
2246void noinline 2640void noinline
2247ev_timer_again (EV_P_ ev_timer *w) 2641ev_timer_again (EV_P_ ev_timer *w)
2248{ 2642{
… …
2266 } 2660 }
2267 2661
2268 EV_FREQUENT_CHECK; 2662 EV_FREQUENT_CHECK;
2269} 2663}
2270 2664
2665ev_tstamp
2666ev_timer_remaining (EV_P_ ev_timer *w)
2667{
2668 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2669}
2670
2271#if EV_PERIODIC_ENABLE 2671#if EV_PERIODIC_ENABLE
2272void noinline 2672void noinline
2273ev_periodic_start (EV_P_ ev_periodic *w) 2673ev_periodic_start (EV_P_ ev_periodic *w)
2274{ 2674{
2275 if (expect_false (ev_is_active (w))) 2675 if (expect_false (ev_is_active (w)))
… …
2277 2677
2278 if (w->reschedule_cb) 2678 if (w->reschedule_cb)
2279 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2679 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2280 else if (w->interval) 2680 else if (w->interval)
2281 { 2681 {
2282 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2682 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2283 /* this formula differs from the one in periodic_reify because we do not always round up */ 2683 /* this formula differs from the one in periodic_reify because we do not always round up */
2284 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2684 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2285 } 2685 }
2286 else 2686 else
2287 ev_at (w) = w->offset; 2687 ev_at (w) = w->offset;
… …
2295 ANHE_at_cache (periodics [ev_active (w)]); 2695 ANHE_at_cache (periodics [ev_active (w)]);
2296 upheap (periodics, ev_active (w)); 2696 upheap (periodics, ev_active (w));
2297 2697
2298 EV_FREQUENT_CHECK; 2698 EV_FREQUENT_CHECK;
2299 2699
2300 /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 2700 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2301} 2701}
2302 2702
2303void noinline 2703void noinline
2304ev_periodic_stop (EV_P_ ev_periodic *w) 2704ev_periodic_stop (EV_P_ ev_periodic *w)
2305{ 2705{
… …
2310 EV_FREQUENT_CHECK; 2710 EV_FREQUENT_CHECK;
2311 2711
2312 { 2712 {
2313 int active = ev_active (w); 2713 int active = ev_active (w);
2314 2714
2315 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 2715 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2316 2716
2317 --periodiccnt; 2717 --periodiccnt;
2318 2718
2319 if (expect_true (active < periodiccnt + HEAP0)) 2719 if (expect_true (active < periodiccnt + HEAP0))
2320 { 2720 {
2321 periodics [active] = periodics [periodiccnt + HEAP0]; 2721 periodics [active] = periodics [periodiccnt + HEAP0];
2322 adjustheap (periodics, periodiccnt, active); 2722 adjustheap (periodics, periodiccnt, active);
2323 } 2723 }
2324 } 2724 }
2325 2725
2326 EV_FREQUENT_CHECK;
2327
2328 ev_stop (EV_A_ (W)w); 2726 ev_stop (EV_A_ (W)w);
2727
2728 EV_FREQUENT_CHECK;
2329} 2729}
2330 2730
2331void noinline 2731void noinline
2332ev_periodic_again (EV_P_ ev_periodic *w) 2732ev_periodic_again (EV_P_ ev_periodic *w)
2333{ 2733{
… …
2339 2739
2340#ifndef SA_RESTART 2740#ifndef SA_RESTART
2341# define SA_RESTART 0 2741# define SA_RESTART 0
2342#endif 2742#endif
2343 2743
2744#if EV_SIGNAL_ENABLE
2745
2344void noinline 2746void noinline
2345ev_signal_start (EV_P_ ev_signal *w) 2747ev_signal_start (EV_P_ ev_signal *w)
2346{ 2748{
2347#if EV_MULTIPLICITY
2348 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2349#endif
2350 if (expect_false (ev_is_active (w))) 2749 if (expect_false (ev_is_active (w)))
2351 return; 2750 return;
2352 2751
2353 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2752 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2354 2753
2355 evpipe_init (EV_A); 2754#if EV_MULTIPLICITY
2755 assert (("libev: a signal must not be attached to two different loops",
2756 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2356 2757
2357 EV_FREQUENT_CHECK; 2758 signals [w->signum - 1].loop = EV_A;
2759#endif
2358 2760
2761 EV_FREQUENT_CHECK;
2762
2763#if EV_USE_SIGNALFD
2764 if (sigfd == -2)
2359 { 2765 {
2360#ifndef _WIN32 2766 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2361 sigset_t full, prev; 2767 if (sigfd < 0 && errno == EINVAL)
2362 sigfillset (&full); 2768 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2363 sigprocmask (SIG_SETMASK, &full, &prev);
2364#endif
2365 2769
2366 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 2770 if (sigfd >= 0)
2771 {
2772 fd_intern (sigfd); /* doing it twice will not hurt */
2367 2773
2368#ifndef _WIN32 2774 sigemptyset (&sigfd_set);
2369 sigprocmask (SIG_SETMASK, &prev, 0); 2775
2370#endif 2776 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2777 ev_set_priority (&sigfd_w, EV_MAXPRI);
2778 ev_io_start (EV_A_ &sigfd_w);
2779 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2780 }
2371 } 2781 }
2782
2783 if (sigfd >= 0)
2784 {
2785 /* TODO: check .head */
2786 sigaddset (&sigfd_set, w->signum);
2787 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2788
2789 signalfd (sigfd, &sigfd_set, 0);
2790 }
2791#endif
2372 2792
2373 ev_start (EV_A_ (W)w, 1); 2793 ev_start (EV_A_ (W)w, 1);
2374 wlist_add (&signals [w->signum - 1].head, (WL)w); 2794 wlist_add (&signals [w->signum - 1].head, (WL)w);
2375 2795
2376 if (!((WL)w)->next) 2796 if (!((WL)w)->next)
2797# if EV_USE_SIGNALFD
2798 if (sigfd < 0) /*TODO*/
2799# endif
2377 { 2800 {
2378#if _WIN32 2801# ifdef _WIN32
2802 evpipe_init (EV_A);
2803
2379 signal (w->signum, ev_sighandler); 2804 signal (w->signum, ev_sighandler);
2380#else 2805# else
2381 struct sigaction sa; 2806 struct sigaction sa;
2807
2808 evpipe_init (EV_A);
2809
2382 sa.sa_handler = ev_sighandler; 2810 sa.sa_handler = ev_sighandler;
2383 sigfillset (&sa.sa_mask); 2811 sigfillset (&sa.sa_mask);
2384 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2812 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2385 sigaction (w->signum, &sa, 0); 2813 sigaction (w->signum, &sa, 0);
2814
2815 sigemptyset (&sa.sa_mask);
2816 sigaddset (&sa.sa_mask, w->signum);
2817 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2386#endif 2818#endif
2387 } 2819 }
2388 2820
2389 EV_FREQUENT_CHECK; 2821 EV_FREQUENT_CHECK;
2390} 2822}
2391 2823
2392void noinline 2824void noinline
… …
2400 2832
2401 wlist_del (&signals [w->signum - 1].head, (WL)w); 2833 wlist_del (&signals [w->signum - 1].head, (WL)w);
2402 ev_stop (EV_A_ (W)w); 2834 ev_stop (EV_A_ (W)w);
2403 2835
2404 if (!signals [w->signum - 1].head) 2836 if (!signals [w->signum - 1].head)
2837 {
2838#if EV_MULTIPLICITY
2839 signals [w->signum - 1].loop = 0; /* unattach from signal */
2840#endif
2841#if EV_USE_SIGNALFD
2842 if (sigfd >= 0)
2843 {
2844 sigset_t ss;
2845
2846 sigemptyset (&ss);
2847 sigaddset (&ss, w->signum);
2848 sigdelset (&sigfd_set, w->signum);
2849
2850 signalfd (sigfd, &sigfd_set, 0);
2851 sigprocmask (SIG_UNBLOCK, &ss, 0);
2852 }
2853 else
2854#endif
2405 signal (w->signum, SIG_DFL); 2855 signal (w->signum, SIG_DFL);
2856 }
2406 2857
2407 EV_FREQUENT_CHECK; 2858 EV_FREQUENT_CHECK;
2408} 2859}
2860
2861#endif
2862
2863#if EV_CHILD_ENABLE
2409 2864
2410void 2865void
2411ev_child_start (EV_P_ ev_child *w) 2866ev_child_start (EV_P_ ev_child *w)
2412{ 2867{
2413#if EV_MULTIPLICITY 2868#if EV_MULTIPLICITY
2414 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2869 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2415#endif 2870#endif
2416 if (expect_false (ev_is_active (w))) 2871 if (expect_false (ev_is_active (w)))
2417 return; 2872 return;
2418 2873
2419 EV_FREQUENT_CHECK; 2874 EV_FREQUENT_CHECK;
2420 2875
2421 ev_start (EV_A_ (W)w, 1); 2876 ev_start (EV_A_ (W)w, 1);
2422 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2877 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2423 2878
2424 EV_FREQUENT_CHECK; 2879 EV_FREQUENT_CHECK;
2425} 2880}
2426 2881
2427void 2882void
… …
2431 if (expect_false (!ev_is_active (w))) 2886 if (expect_false (!ev_is_active (w)))
2432 return; 2887 return;
2433 2888
2434 EV_FREQUENT_CHECK; 2889 EV_FREQUENT_CHECK;
2435 2890
2436 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2891 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2437 ev_stop (EV_A_ (W)w); 2892 ev_stop (EV_A_ (W)w);
2438 2893
2439 EV_FREQUENT_CHECK; 2894 EV_FREQUENT_CHECK;
2440} 2895}
2896
2897#endif
2441 2898
2442#if EV_STAT_ENABLE 2899#if EV_STAT_ENABLE
2443 2900
2444# ifdef _WIN32 2901# ifdef _WIN32
2445# undef lstat 2902# undef lstat
… …
2451#define MIN_STAT_INTERVAL 0.1074891 2908#define MIN_STAT_INTERVAL 0.1074891
2452 2909
2453static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2910static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2454 2911
2455#if EV_USE_INOTIFY 2912#if EV_USE_INOTIFY
2456# define EV_INOTIFY_BUFSIZE 8192 2913
2914/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
2915# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2457 2916
2458static void noinline 2917static void noinline
2459infy_add (EV_P_ ev_stat *w) 2918infy_add (EV_P_ ev_stat *w)
2460{ 2919{
2461 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); 2920 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);
2462 2921
2463 if (w->wd < 0) 2922 if (w->wd >= 0)
2923 {
2924 struct statfs sfs;
2925
2926 /* now local changes will be tracked by inotify, but remote changes won't */
2927 /* unless the filesystem is known to be local, we therefore still poll */
2928 /* also do poll on <2.6.25, but with normal frequency */
2929
2930 if (!fs_2625)
2931 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2932 else if (!statfs (w->path, &sfs)
2933 && (sfs.f_type == 0x1373 /* devfs */
2934 || sfs.f_type == 0xEF53 /* ext2/3 */
2935 || sfs.f_type == 0x3153464a /* jfs */
2936 || sfs.f_type == 0x52654973 /* reiser3 */
2937 || sfs.f_type == 0x01021994 /* tempfs */
2938 || sfs.f_type == 0x58465342 /* xfs */))
2939 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
2940 else
2941 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2464 { 2942 }
2943 else
2944 {
2945 /* can't use inotify, continue to stat */
2465 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 2946 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2466 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2467 2947
2468 /* monitor some parent directory for speedup hints */ 2948 /* if path is not there, monitor some parent directory for speedup hints */
2469 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 2949 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2470 /* but an efficiency issue only */ 2950 /* but an efficiency issue only */
2471 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2951 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2472 { 2952 {
2473 char path [4096]; 2953 char path [4096];
… …
2489 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2969 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2490 } 2970 }
2491 } 2971 }
2492 2972
2493 if (w->wd >= 0) 2973 if (w->wd >= 0)
2494 {
2495 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2974 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2496 2975
2497 /* now local changes will be tracked by inotify, but remote changes won't */ 2976 /* now re-arm timer, if required */
2498 /* unless the filesystem it known to be local, we therefore still poll */ 2977 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2499 /* also do poll on <2.6.25, but with normal frequency */
2500 struct statfs sfs;
2501
2502 if (fs_2625 && !statfs (w->path, &sfs))
2503 if (sfs.f_type == 0x1373 /* devfs */
2504 || sfs.f_type == 0xEF53 /* ext2/3 */
2505 || sfs.f_type == 0x3153464a /* jfs */
2506 || sfs.f_type == 0x52654973 /* reiser3 */
2507 || sfs.f_type == 0x01021994 /* tempfs */
2508 || sfs.f_type == 0x58465342 /* xfs */)
2509 return;
2510
2511 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2512 ev_timer_again (EV_A_ &w->timer); 2978 ev_timer_again (EV_A_ &w->timer);
2513 } 2979 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2514} 2980}
2515 2981
2516static void noinline 2982static void noinline
2517infy_del (EV_P_ ev_stat *w) 2983infy_del (EV_P_ ev_stat *w)
2518{ 2984{
… …
2521 2987
2522 if (wd < 0) 2988 if (wd < 0)
2523 return; 2989 return;
2524 2990
2525 w->wd = -2; 2991 w->wd = -2;
2526 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 2992 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2527 wlist_del (&fs_hash [slot].head, (WL)w); 2993 wlist_del (&fs_hash [slot].head, (WL)w);
2528 2994
2529 /* remove this watcher, if others are watching it, they will rearm */ 2995 /* remove this watcher, if others are watching it, they will rearm */
2530 inotify_rm_watch (fs_fd, wd); 2996 inotify_rm_watch (fs_fd, wd);
2531} 2997}
… …
2533static void noinline 2999static void noinline
2534infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3000infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2535{ 3001{
2536 if (slot < 0) 3002 if (slot < 0)
2537 /* overflow, need to check for all hash slots */ 3003 /* overflow, need to check for all hash slots */
2538 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3004 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2539 infy_wd (EV_A_ slot, wd, ev); 3005 infy_wd (EV_A_ slot, wd, ev);
2540 else 3006 else
2541 { 3007 {
2542 WL w_; 3008 WL w_;
2543 3009
2544 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3010 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2545 { 3011 {
2546 ev_stat *w = (ev_stat *)w_; 3012 ev_stat *w = (ev_stat *)w_;
2547 w_ = w_->next; /* lets us remove this watcher and all before it */ 3013 w_ = w_->next; /* lets us remove this watcher and all before it */
2548 3014
2549 if (w->wd == wd || wd == -1) 3015 if (w->wd == wd || wd == -1)
2550 { 3016 {
2551 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3017 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2552 { 3018 {
2553 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3019 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2554 w->wd = -1; 3020 w->wd = -1;
2555 infy_add (EV_A_ w); /* re-add, no matter what */ 3021 infy_add (EV_A_ w); /* re-add, no matter what */
2556 } 3022 }
2557 3023
2558 stat_timer_cb (EV_A_ &w->timer, 0); 3024 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2563 3029
2564static void 3030static void
2565infy_cb (EV_P_ ev_io *w, int revents) 3031infy_cb (EV_P_ ev_io *w, int revents)
2566{ 3032{
2567 char buf [EV_INOTIFY_BUFSIZE]; 3033 char buf [EV_INOTIFY_BUFSIZE];
2568 struct inotify_event *ev = (struct inotify_event *)buf;
2569 int ofs; 3034 int ofs;
2570 int len = read (fs_fd, buf, sizeof (buf)); 3035 int len = read (fs_fd, buf, sizeof (buf));
2571 3036
2572 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3037 for (ofs = 0; ofs < len; )
3038 {
3039 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2573 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3040 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3041 ofs += sizeof (struct inotify_event) + ev->len;
3042 }
2574} 3043}
2575 3044
2576void inline_size 3045inline_size unsigned int
3046ev_linux_version (void)
3047{
3048 struct utsname buf;
3049 unsigned int v;
3050 int i;
3051 char *p = buf.release;
3052
3053 if (uname (&buf))
3054 return 0;
3055
3056 for (i = 3+1; --i; )
3057 {
3058 unsigned int c = 0;
3059
3060 for (;;)
3061 {
3062 if (*p >= '0' && *p <= '9')
3063 c = c * 10 + *p++ - '0';
3064 else
3065 {
3066 p += *p == '.';
3067 break;
3068 }
3069 }
3070
3071 v = (v << 8) | c;
3072 }
3073
3074 return v;
3075}
3076
3077inline_size void
2577check_2625 (EV_P) 3078ev_check_2625 (EV_P)
2578{ 3079{
2579 /* kernels < 2.6.25 are borked 3080 /* kernels < 2.6.25 are borked
2580 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3081 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2581 */ 3082 */
2582 struct utsname buf; 3083 if (ev_linux_version () < 0x020619)
2583 int major, minor, micro;
2584
2585 if (uname (&buf))
2586 return; 3084 return;
2587 3085
2588 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2589 return;
2590
2591 if (major < 2
2592 || (major == 2 && minor < 6)
2593 || (major == 2 && minor == 6 && micro < 25))
2594 return;
2595
2596 fs_2625 = 1; 3086 fs_2625 = 1;
2597} 3087}
2598 3088
2599void inline_size 3089inline_size int
3090infy_newfd (void)
3091{
3092#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3093 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3094 if (fd >= 0)
3095 return fd;
3096#endif
3097 return inotify_init ();
3098}
3099
3100inline_size void
2600infy_init (EV_P) 3101infy_init (EV_P)
2601{ 3102{
2602 if (fs_fd != -2) 3103 if (fs_fd != -2)
2603 return; 3104 return;
2604 3105
2605 fs_fd = -1; 3106 fs_fd = -1;
2606 3107
2607 check_2625 (EV_A); 3108 ev_check_2625 (EV_A);
2608 3109
2609 fs_fd = inotify_init (); 3110 fs_fd = infy_newfd ();
2610 3111
2611 if (fs_fd >= 0) 3112 if (fs_fd >= 0)
2612 { 3113 {
3114 fd_intern (fs_fd);
2613 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3115 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2614 ev_set_priority (&fs_w, EV_MAXPRI); 3116 ev_set_priority (&fs_w, EV_MAXPRI);
2615 ev_io_start (EV_A_ &fs_w); 3117 ev_io_start (EV_A_ &fs_w);
3118 ev_unref (EV_A);
2616 } 3119 }
2617} 3120}
2618 3121
2619void inline_size 3122inline_size void
2620infy_fork (EV_P) 3123infy_fork (EV_P)
2621{ 3124{
2622 int slot; 3125 int slot;
2623 3126
2624 if (fs_fd < 0) 3127 if (fs_fd < 0)
2625 return; 3128 return;
2626 3129
3130 ev_ref (EV_A);
3131 ev_io_stop (EV_A_ &fs_w);
2627 close (fs_fd); 3132 close (fs_fd);
2628 fs_fd = inotify_init (); 3133 fs_fd = infy_newfd ();
2629 3134
3135 if (fs_fd >= 0)
3136 {
3137 fd_intern (fs_fd);
3138 ev_io_set (&fs_w, fs_fd, EV_READ);
3139 ev_io_start (EV_A_ &fs_w);
3140 ev_unref (EV_A);
3141 }
3142
2630 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3143 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2631 { 3144 {
2632 WL w_ = fs_hash [slot].head; 3145 WL w_ = fs_hash [slot].head;
2633 fs_hash [slot].head = 0; 3146 fs_hash [slot].head = 0;
2634 3147
2635 while (w_) 3148 while (w_)
… …
2640 w->wd = -1; 3153 w->wd = -1;
2641 3154
2642 if (fs_fd >= 0) 3155 if (fs_fd >= 0)
2643 infy_add (EV_A_ w); /* re-add, no matter what */ 3156 infy_add (EV_A_ w); /* re-add, no matter what */
2644 else 3157 else
3158 {
3159 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3160 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2645 ev_timer_again (EV_A_ &w->timer); 3161 ev_timer_again (EV_A_ &w->timer);
3162 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3163 }
2646 } 3164 }
2647 } 3165 }
2648} 3166}
2649 3167
2650#endif 3168#endif
… …
2667static void noinline 3185static void noinline
2668stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3186stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2669{ 3187{
2670 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3188 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2671 3189
2672 /* we copy this here each the time so that */ 3190 ev_statdata prev = w->attr;
2673 /* prev has the old value when the callback gets invoked */
2674 w->prev = w->attr;
2675 ev_stat_stat (EV_A_ w); 3191 ev_stat_stat (EV_A_ w);
2676 3192
2677 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3193 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2678 if ( 3194 if (
2679 w->prev.st_dev != w->attr.st_dev 3195 prev.st_dev != w->attr.st_dev
2680 || w->prev.st_ino != w->attr.st_ino 3196 || prev.st_ino != w->attr.st_ino
2681 || w->prev.st_mode != w->attr.st_mode 3197 || prev.st_mode != w->attr.st_mode
2682 || w->prev.st_nlink != w->attr.st_nlink 3198 || prev.st_nlink != w->attr.st_nlink
2683 || w->prev.st_uid != w->attr.st_uid 3199 || prev.st_uid != w->attr.st_uid
2684 || w->prev.st_gid != w->attr.st_gid 3200 || prev.st_gid != w->attr.st_gid
2685 || w->prev.st_rdev != w->attr.st_rdev 3201 || prev.st_rdev != w->attr.st_rdev
2686 || w->prev.st_size != w->attr.st_size 3202 || prev.st_size != w->attr.st_size
2687 || w->prev.st_atime != w->attr.st_atime 3203 || prev.st_atime != w->attr.st_atime
2688 || w->prev.st_mtime != w->attr.st_mtime 3204 || prev.st_mtime != w->attr.st_mtime
2689 || w->prev.st_ctime != w->attr.st_ctime 3205 || prev.st_ctime != w->attr.st_ctime
2690 ) { 3206 ) {
3207 /* we only update w->prev on actual differences */
3208 /* in case we test more often than invoke the callback, */
3209 /* to ensure that prev is always different to attr */
3210 w->prev = prev;
3211
2691 #if EV_USE_INOTIFY 3212 #if EV_USE_INOTIFY
2692 if (fs_fd >= 0) 3213 if (fs_fd >= 0)
2693 { 3214 {
2694 infy_del (EV_A_ w); 3215 infy_del (EV_A_ w);
2695 infy_add (EV_A_ w); 3216 infy_add (EV_A_ w);
… …
2720 3241
2721 if (fs_fd >= 0) 3242 if (fs_fd >= 0)
2722 infy_add (EV_A_ w); 3243 infy_add (EV_A_ w);
2723 else 3244 else
2724#endif 3245#endif
3246 {
2725 ev_timer_again (EV_A_ &w->timer); 3247 ev_timer_again (EV_A_ &w->timer);
3248 ev_unref (EV_A);
3249 }
2726 3250
2727 ev_start (EV_A_ (W)w, 1); 3251 ev_start (EV_A_ (W)w, 1);
2728 3252
2729 EV_FREQUENT_CHECK; 3253 EV_FREQUENT_CHECK;
2730} 3254}
… …
2739 EV_FREQUENT_CHECK; 3263 EV_FREQUENT_CHECK;
2740 3264
2741#if EV_USE_INOTIFY 3265#if EV_USE_INOTIFY
2742 infy_del (EV_A_ w); 3266 infy_del (EV_A_ w);
2743#endif 3267#endif
3268
3269 if (ev_is_active (&w->timer))
3270 {
3271 ev_ref (EV_A);
2744 ev_timer_stop (EV_A_ &w->timer); 3272 ev_timer_stop (EV_A_ &w->timer);
3273 }
2745 3274
2746 ev_stop (EV_A_ (W)w); 3275 ev_stop (EV_A_ (W)w);
2747 3276
2748 EV_FREQUENT_CHECK; 3277 EV_FREQUENT_CHECK;
2749} 3278}
… …
2794 3323
2795 EV_FREQUENT_CHECK; 3324 EV_FREQUENT_CHECK;
2796} 3325}
2797#endif 3326#endif
2798 3327
3328#if EV_PREPARE_ENABLE
2799void 3329void
2800ev_prepare_start (EV_P_ ev_prepare *w) 3330ev_prepare_start (EV_P_ ev_prepare *w)
2801{ 3331{
2802 if (expect_false (ev_is_active (w))) 3332 if (expect_false (ev_is_active (w)))
2803 return; 3333 return;
… …
2829 3359
2830 ev_stop (EV_A_ (W)w); 3360 ev_stop (EV_A_ (W)w);
2831 3361
2832 EV_FREQUENT_CHECK; 3362 EV_FREQUENT_CHECK;
2833} 3363}
3364#endif
2834 3365
3366#if EV_CHECK_ENABLE
2835void 3367void
2836ev_check_start (EV_P_ ev_check *w) 3368ev_check_start (EV_P_ ev_check *w)
2837{ 3369{
2838 if (expect_false (ev_is_active (w))) 3370 if (expect_false (ev_is_active (w)))
2839 return; 3371 return;
… …
2865 3397
2866 ev_stop (EV_A_ (W)w); 3398 ev_stop (EV_A_ (W)w);
2867 3399
2868 EV_FREQUENT_CHECK; 3400 EV_FREQUENT_CHECK;
2869} 3401}
3402#endif
2870 3403
2871#if EV_EMBED_ENABLE 3404#if EV_EMBED_ENABLE
2872void noinline 3405void noinline
2873ev_embed_sweep (EV_P_ ev_embed *w) 3406ev_embed_sweep (EV_P_ ev_embed *w)
2874{ 3407{
… …
2890embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3423embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2891{ 3424{
2892 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3425 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2893 3426
2894 { 3427 {
2895 struct ev_loop *loop = w->other; 3428 EV_P = w->other;
2896 3429
2897 while (fdchangecnt) 3430 while (fdchangecnt)
2898 { 3431 {
2899 fd_reify (EV_A); 3432 fd_reify (EV_A);
2900 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3433 ev_loop (EV_A_ EVLOOP_NONBLOCK);
… …
2905static void 3438static void
2906embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 3439embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
2907{ 3440{
2908 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3441 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2909 3442
3443 ev_embed_stop (EV_A_ w);
3444
2910 { 3445 {
2911 struct ev_loop *loop = w->other; 3446 EV_P = w->other;
2912 3447
2913 ev_loop_fork (EV_A); 3448 ev_loop_fork (EV_A);
3449 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2914 } 3450 }
3451
3452 ev_embed_start (EV_A_ w);
2915} 3453}
2916 3454
2917#if 0 3455#if 0
2918static void 3456static void
2919embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3457embed_idle_cb (EV_P_ ev_idle *idle, int revents)
… …
2927{ 3465{
2928 if (expect_false (ev_is_active (w))) 3466 if (expect_false (ev_is_active (w)))
2929 return; 3467 return;
2930 3468
2931 { 3469 {
2932 struct ev_loop *loop = w->other; 3470 EV_P = w->other;
2933 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3471 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2934 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3472 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2935 } 3473 }
2936 3474
2937 EV_FREQUENT_CHECK; 3475 EV_FREQUENT_CHECK;
2938 3476
… …
2964 3502
2965 ev_io_stop (EV_A_ &w->io); 3503 ev_io_stop (EV_A_ &w->io);
2966 ev_prepare_stop (EV_A_ &w->prepare); 3504 ev_prepare_stop (EV_A_ &w->prepare);
2967 ev_fork_stop (EV_A_ &w->fork); 3505 ev_fork_stop (EV_A_ &w->fork);
2968 3506
3507 ev_stop (EV_A_ (W)w);
3508
2969 EV_FREQUENT_CHECK; 3509 EV_FREQUENT_CHECK;
2970} 3510}
2971#endif 3511#endif
2972 3512
2973#if EV_FORK_ENABLE 3513#if EV_FORK_ENABLE
… …
3049 3589
3050void 3590void
3051ev_async_send (EV_P_ ev_async *w) 3591ev_async_send (EV_P_ ev_async *w)
3052{ 3592{
3053 w->sent = 1; 3593 w->sent = 1;
3054 evpipe_write (EV_A_ &gotasync); 3594 evpipe_write (EV_A_ &async_pending);
3055} 3595}
3056#endif 3596#endif
3057 3597
3058/*****************************************************************************/ 3598/*****************************************************************************/
3059 3599
… …
3099{ 3639{
3100 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3640 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3101 3641
3102 if (expect_false (!once)) 3642 if (expect_false (!once))
3103 { 3643 {
3104 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3644 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3105 return; 3645 return;
3106 } 3646 }
3107 3647
3108 once->cb = cb; 3648 once->cb = cb;
3109 once->arg = arg; 3649 once->arg = arg;
… …
3121 ev_timer_set (&once->to, timeout, 0.); 3661 ev_timer_set (&once->to, timeout, 0.);
3122 ev_timer_start (EV_A_ &once->to); 3662 ev_timer_start (EV_A_ &once->to);
3123 } 3663 }
3124} 3664}
3125 3665
3666/*****************************************************************************/
3667
3668#if EV_WALK_ENABLE
3669void
3670ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3671{
3672 int i, j;
3673 ev_watcher_list *wl, *wn;
3674
3675 if (types & (EV_IO | EV_EMBED))
3676 for (i = 0; i < anfdmax; ++i)
3677 for (wl = anfds [i].head; wl; )
3678 {
3679 wn = wl->next;
3680
3681#if EV_EMBED_ENABLE
3682 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3683 {
3684 if (types & EV_EMBED)
3685 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3686 }
3687 else
3688#endif
3689#if EV_USE_INOTIFY
3690 if (ev_cb ((ev_io *)wl) == infy_cb)
3691 ;
3692 else
3693#endif
3694 if ((ev_io *)wl != &pipe_w)
3695 if (types & EV_IO)
3696 cb (EV_A_ EV_IO, wl);
3697
3698 wl = wn;
3699 }
3700
3701 if (types & (EV_TIMER | EV_STAT))
3702 for (i = timercnt + HEAP0; i-- > HEAP0; )
3703#if EV_STAT_ENABLE
3704 /*TODO: timer is not always active*/
3705 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3706 {
3707 if (types & EV_STAT)
3708 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3709 }
3710 else
3711#endif
3712 if (types & EV_TIMER)
3713 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3714
3715#if EV_PERIODIC_ENABLE
3716 if (types & EV_PERIODIC)
3717 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3718 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3719#endif
3720
3721#if EV_IDLE_ENABLE
3722 if (types & EV_IDLE)
3723 for (j = NUMPRI; i--; )
3724 for (i = idlecnt [j]; i--; )
3725 cb (EV_A_ EV_IDLE, idles [j][i]);
3726#endif
3727
3728#if EV_FORK_ENABLE
3729 if (types & EV_FORK)
3730 for (i = forkcnt; i--; )
3731 if (ev_cb (forks [i]) != embed_fork_cb)
3732 cb (EV_A_ EV_FORK, forks [i]);
3733#endif
3734
3735#if EV_ASYNC_ENABLE
3736 if (types & EV_ASYNC)
3737 for (i = asynccnt; i--; )
3738 cb (EV_A_ EV_ASYNC, asyncs [i]);
3739#endif
3740
3741#if EV_PREPARE_ENABLE
3742 if (types & EV_PREPARE)
3743 for (i = preparecnt; i--; )
3744# if EV_EMBED_ENABLE
3745 if (ev_cb (prepares [i]) != embed_prepare_cb)
3746# endif
3747 cb (EV_A_ EV_PREPARE, prepares [i]);
3748#endif
3749
3750#if EV_CHECK_ENABLE
3751 if (types & EV_CHECK)
3752 for (i = checkcnt; i--; )
3753 cb (EV_A_ EV_CHECK, checks [i]);
3754#endif
3755
3756#if EV_SIGNAL_ENABLE
3757 if (types & EV_SIGNAL)
3758 for (i = 0; i < EV_NSIG - 1; ++i)
3759 for (wl = signals [i].head; wl; )
3760 {
3761 wn = wl->next;
3762 cb (EV_A_ EV_SIGNAL, wl);
3763 wl = wn;
3764 }
3765#endif
3766
3767#if EV_CHILD_ENABLE
3768 if (types & EV_CHILD)
3769 for (i = (EV_PID_HASHSIZE); i--; )
3770 for (wl = childs [i]; wl; )
3771 {
3772 wn = wl->next;
3773 cb (EV_A_ EV_CHILD, wl);
3774 wl = wn;
3775 }
3776#endif
3777/* EV_STAT 0x00001000 /* stat data changed */
3778/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3779}
3780#endif
3781
3126#if EV_MULTIPLICITY 3782#if EV_MULTIPLICITY
3127 #include "ev_wrap.h" 3783 #include "ev_wrap.h"
3128#endif 3784#endif
3129 3785
3130#ifdef __cplusplus 3786#ifdef __cplusplus

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