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Comparing libev/ev.c (file contents):
Revision 1.247 by root, Wed May 21 21:22:10 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 *
… …
47# include EV_CONFIG_H 47# include EV_CONFIG_H
48# else 48# else
49# include "config.h" 49# include "config.h"
50# endif 50# endif
51 51
52# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME
56# define EV_USE_REALTIME 0
57# endif
58# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1
60# endif
61# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL)
63# define EV_USE_CLOCK_SYSCALL 0
64# endif
65
52# if HAVE_CLOCK_GETTIME 66# if HAVE_CLOCK_GETTIME
53# ifndef EV_USE_MONOTONIC 67# ifndef EV_USE_MONOTONIC
54# define EV_USE_MONOTONIC 1 68# define EV_USE_MONOTONIC 1
55# endif 69# endif
56# ifndef EV_USE_REALTIME 70# ifndef EV_USE_REALTIME
57# define EV_USE_REALTIME 1 71# define EV_USE_REALTIME 0
58# endif 72# endif
59# else 73# else
60# ifndef EV_USE_MONOTONIC 74# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 0 75# define EV_USE_MONOTONIC 0
62# endif 76# endif
… …
65# endif 79# endif
66# endif 80# endif
67 81
68# ifndef EV_USE_NANOSLEEP 82# ifndef EV_USE_NANOSLEEP
69# if HAVE_NANOSLEEP 83# if HAVE_NANOSLEEP
70# define EV_USE_NANOSLEEP 1 84# define EV_USE_NANOSLEEP EV_FEATURE_OS
71# else 85# else
72# define EV_USE_NANOSLEEP 0 86# define EV_USE_NANOSLEEP 0
73# endif 87# endif
74# endif 88# endif
75 89
76# ifndef EV_USE_SELECT 90# ifndef EV_USE_SELECT
77# if HAVE_SELECT && HAVE_SYS_SELECT_H 91# if HAVE_SELECT && HAVE_SYS_SELECT_H
78# define EV_USE_SELECT 1 92# define EV_USE_SELECT EV_FEATURE_BACKENDS
79# else 93# else
80# define EV_USE_SELECT 0 94# define EV_USE_SELECT 0
81# endif 95# endif
82# endif 96# endif
83 97
84# ifndef EV_USE_POLL 98# ifndef EV_USE_POLL
85# if HAVE_POLL && HAVE_POLL_H 99# if HAVE_POLL && HAVE_POLL_H
86# define EV_USE_POLL 1 100# define EV_USE_POLL EV_FEATURE_BACKENDS
87# else 101# else
88# define EV_USE_POLL 0 102# define EV_USE_POLL 0
89# endif 103# endif
90# endif 104# endif
91 105
92# ifndef EV_USE_EPOLL 106# ifndef EV_USE_EPOLL
93# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
94# define EV_USE_EPOLL 1 108# define EV_USE_EPOLL EV_FEATURE_BACKENDS
95# else 109# else
96# define EV_USE_EPOLL 0 110# define EV_USE_EPOLL 0
97# endif 111# endif
98# endif 112# endif
99 113
100# ifndef EV_USE_KQUEUE 114# ifndef EV_USE_KQUEUE
101# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
102# define EV_USE_KQUEUE 1 116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
103# else 117# else
104# define EV_USE_KQUEUE 0 118# define EV_USE_KQUEUE 0
105# endif 119# endif
106# endif 120# endif
107 121
108# ifndef EV_USE_PORT 122# ifndef EV_USE_PORT
109# if HAVE_PORT_H && HAVE_PORT_CREATE 123# if HAVE_PORT_H && HAVE_PORT_CREATE
110# define EV_USE_PORT 1 124# define EV_USE_PORT EV_FEATURE_BACKENDS
111# else 125# else
112# define EV_USE_PORT 0 126# define EV_USE_PORT 0
113# endif 127# endif
114# endif 128# endif
115 129
116# ifndef EV_USE_INOTIFY 130# ifndef EV_USE_INOTIFY
117# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
118# define EV_USE_INOTIFY 1 132# define EV_USE_INOTIFY EV_FEATURE_OS
119# else 133# else
120# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY 0
121# endif 135# endif
122# endif 136# endif
123 137
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD EV_FEATURE_OS
141# else
142# define EV_USE_SIGNALFD 0
143# endif
144# endif
145
124# ifndef EV_USE_EVENTFD 146# ifndef EV_USE_EVENTFD
125# if HAVE_EVENTFD 147# if HAVE_EVENTFD
126# define EV_USE_EVENTFD 1 148# define EV_USE_EVENTFD EV_FEATURE_OS
127# else 149# else
128# define EV_USE_EVENTFD 0 150# define EV_USE_EVENTFD 0
129# endif 151# endif
130# endif 152# endif
131 153
132#endif 154#endif
133 155
134#include <math.h> 156#include <math.h>
135#include <stdlib.h> 157#include <stdlib.h>
158#include <string.h>
136#include <fcntl.h> 159#include <fcntl.h>
137#include <stddef.h> 160#include <stddef.h>
138 161
139#include <stdio.h> 162#include <stdio.h>
140 163
141#include <assert.h> 164#include <assert.h>
142#include <errno.h> 165#include <errno.h>
143#include <sys/types.h> 166#include <sys/types.h>
144#include <time.h> 167#include <time.h>
168#include <limits.h>
145 169
146#include <signal.h> 170#include <signal.h>
147 171
148#ifdef EV_H 172#ifdef EV_H
149# include EV_H 173# include EV_H
… …
154#ifndef _WIN32 178#ifndef _WIN32
155# include <sys/time.h> 179# include <sys/time.h>
156# include <sys/wait.h> 180# include <sys/wait.h>
157# include <unistd.h> 181# include <unistd.h>
158#else 182#else
183# include <io.h>
159# define WIN32_LEAN_AND_MEAN 184# define WIN32_LEAN_AND_MEAN
160# include <windows.h> 185# include <windows.h>
161# ifndef EV_SELECT_IS_WINSOCKET 186# ifndef EV_SELECT_IS_WINSOCKET
162# define EV_SELECT_IS_WINSOCKET 1 187# define EV_SELECT_IS_WINSOCKET 1
163# endif 188# endif
189# undef EV_AVOID_STDIO
164#endif 190#endif
165 191
166/* 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 */
167 193
194/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG)
196/* use what's provided */
197#elif defined (NSIG)
198# define EV_NSIG (NSIG)
199#elif defined(_NSIG)
200# define EV_NSIG (_NSIG)
201#elif defined (SIGMAX)
202# define EV_NSIG (SIGMAX+1)
203#elif defined (SIG_MAX)
204# define EV_NSIG (SIG_MAX+1)
205#elif defined (_SIG_MAX)
206# define EV_NSIG (_SIG_MAX+1)
207#elif defined (MAXSIG)
208# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG)
210# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE)
212# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig)
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else
216# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line, */
218/* but consider reporting it, too! :) */
219# define EV_NSIG 65
220#endif
221
222#ifndef EV_USE_CLOCK_SYSCALL
223# if __linux && __GLIBC__ >= 2
224# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
225# else
226# define EV_USE_CLOCK_SYSCALL 0
227# endif
228#endif
229
168#ifndef EV_USE_MONOTONIC 230#ifndef EV_USE_MONOTONIC
231# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
232# define EV_USE_MONOTONIC EV_FEATURE_OS
233# else
169# define EV_USE_MONOTONIC 0 234# define EV_USE_MONOTONIC 0
235# endif
170#endif 236#endif
171 237
172#ifndef EV_USE_REALTIME 238#ifndef EV_USE_REALTIME
173# define EV_USE_REALTIME 0 239# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
174#endif 240#endif
175 241
176#ifndef EV_USE_NANOSLEEP 242#ifndef EV_USE_NANOSLEEP
243# if _POSIX_C_SOURCE >= 199309L
244# define EV_USE_NANOSLEEP EV_FEATURE_OS
245# else
177# define EV_USE_NANOSLEEP 0 246# define EV_USE_NANOSLEEP 0
247# endif
178#endif 248#endif
179 249
180#ifndef EV_USE_SELECT 250#ifndef EV_USE_SELECT
181# define EV_USE_SELECT 1 251# define EV_USE_SELECT EV_FEATURE_BACKENDS
182#endif 252#endif
183 253
184#ifndef EV_USE_POLL 254#ifndef EV_USE_POLL
185# ifdef _WIN32 255# ifdef _WIN32
186# define EV_USE_POLL 0 256# define EV_USE_POLL 0
187# else 257# else
188# define EV_USE_POLL 1 258# define EV_USE_POLL EV_FEATURE_BACKENDS
189# endif 259# endif
190#endif 260#endif
191 261
192#ifndef EV_USE_EPOLL 262#ifndef EV_USE_EPOLL
193# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 263# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
194# define EV_USE_EPOLL 1 264# define EV_USE_EPOLL EV_FEATURE_BACKENDS
195# else 265# else
196# define EV_USE_EPOLL 0 266# define EV_USE_EPOLL 0
197# endif 267# endif
198#endif 268#endif
199 269
… …
205# define EV_USE_PORT 0 275# define EV_USE_PORT 0
206#endif 276#endif
207 277
208#ifndef EV_USE_INOTIFY 278#ifndef EV_USE_INOTIFY
209# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 279# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
210# define EV_USE_INOTIFY 1 280# define EV_USE_INOTIFY EV_FEATURE_OS
211# else 281# else
212# define EV_USE_INOTIFY 0 282# define EV_USE_INOTIFY 0
213# endif 283# endif
214#endif 284#endif
215 285
216#ifndef EV_PID_HASHSIZE 286#ifndef EV_PID_HASHSIZE
217# if EV_MINIMAL 287# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
218# define EV_PID_HASHSIZE 1
219# else
220# define EV_PID_HASHSIZE 16
221# endif
222#endif 288#endif
223 289
224#ifndef EV_INOTIFY_HASHSIZE 290#ifndef EV_INOTIFY_HASHSIZE
225# if EV_MINIMAL 291# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
226# define EV_INOTIFY_HASHSIZE 1
227# else
228# define EV_INOTIFY_HASHSIZE 16
229# endif
230#endif 292#endif
231 293
232#ifndef EV_USE_EVENTFD 294#ifndef EV_USE_EVENTFD
233# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 295# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
234# define EV_USE_EVENTFD 1 296# define EV_USE_EVENTFD EV_FEATURE_OS
235# else 297# else
236# define EV_USE_EVENTFD 0 298# define EV_USE_EVENTFD 0
237# endif 299# endif
238#endif 300#endif
239 301
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
307# endif
308#endif
309
310#if 0 /* debugging */
311# define EV_VERIFY 3
312# define EV_USE_4HEAP 1
313# define EV_HEAP_CACHE_AT 1
314#endif
315
316#ifndef EV_VERIFY
317# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
318#endif
319
240#ifndef EV_USE_4HEAP 320#ifndef EV_USE_4HEAP
241# define EV_USE_4HEAP !EV_MINIMAL 321# define EV_USE_4HEAP EV_FEATURE_DATA
242#endif 322#endif
243 323
244#ifndef EV_HEAP_CACHE_AT 324#ifndef EV_HEAP_CACHE_AT
245# 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
246#endif 340#endif
247 341
248/* 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
249 349
250#ifndef CLOCK_MONOTONIC 350#ifndef CLOCK_MONOTONIC
251# undef EV_USE_MONOTONIC 351# undef EV_USE_MONOTONIC
252# define EV_USE_MONOTONIC 0 352# define EV_USE_MONOTONIC 0
253#endif 353#endif
… …
267# include <sys/select.h> 367# include <sys/select.h>
268# endif 368# endif
269#endif 369#endif
270 370
271#if EV_USE_INOTIFY 371#if EV_USE_INOTIFY
372# include <sys/utsname.h>
373# include <sys/statfs.h>
272# include <sys/inotify.h> 374# include <sys/inotify.h>
375/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
376# ifndef IN_DONT_FOLLOW
377# undef EV_USE_INOTIFY
378# define EV_USE_INOTIFY 0
379# endif
273#endif 380#endif
274 381
275#if EV_SELECT_IS_WINSOCKET 382#if EV_SELECT_IS_WINSOCKET
276# include <winsock.h> 383# include <winsock.h>
277#endif 384#endif
278 385
279#if EV_USE_EVENTFD 386#if EV_USE_EVENTFD
280/* 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 */
281# 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
282# ifdef __cplusplus 399# ifdef __cplusplus
283extern "C" { 400extern "C" {
284# endif 401# endif
285int eventfd (unsigned int initval, int flags); 402int (eventfd) (unsigned int initval, int flags);
286# ifdef __cplusplus 403# ifdef __cplusplus
287} 404}
288# endif 405# endif
289#endif 406#endif
290 407
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
291/**/ 437/**/
438
439#if EV_VERIFY >= 3
440# define EV_FREQUENT_CHECK ev_verify (EV_A)
441#else
442# define EV_FREQUENT_CHECK do { } while (0)
443#endif
292 444
293/* 445/*
294 * This is used to avoid floating point rounding problems. 446 * This is used to avoid floating point rounding problems.
295 * It is added to ev_rt_now when scheduling periodics 447 * It is added to ev_rt_now when scheduling periodics
296 * to ensure progress, time-wise, even when rounding 448 * to ensure progress, time-wise, even when rounding
… …
300 */ 452 */
301#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 453#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
302 454
303#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) */
304#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) */
305/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
306 457
307#if __GNUC__ >= 4 458#if __GNUC__ >= 4
308# define expect(expr,value) __builtin_expect ((expr),(value)) 459# define expect(expr,value) __builtin_expect ((expr),(value))
309# define noinline __attribute__ ((noinline)) 460# define noinline __attribute__ ((noinline))
310#else 461#else
… …
317 468
318#define expect_false(expr) expect ((expr) != 0, 0) 469#define expect_false(expr) expect ((expr) != 0, 0)
319#define expect_true(expr) expect ((expr) != 0, 1) 470#define expect_true(expr) expect ((expr) != 0, 1)
320#define inline_size static inline 471#define inline_size static inline
321 472
322#if EV_MINIMAL 473#if EV_FEATURE_CODE
474# define inline_speed static inline
475#else
323# 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)
324#else 483#else
325# define inline_speed static inline
326#endif
327
328#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
329#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 484# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
485#endif
330 486
331#define EMPTY /* required for microsofts broken pseudo-c compiler */ 487#define EMPTY /* required for microsofts broken pseudo-c compiler */
332#define EMPTY2(a,b) /* used to suppress some warnings */ 488#define EMPTY2(a,b) /* used to suppress some warnings */
333 489
334typedef ev_watcher *W; 490typedef ev_watcher *W;
… …
336typedef ev_watcher_time *WT; 492typedef ev_watcher_time *WT;
337 493
338#define ev_active(w) ((W)(w))->active 494#define ev_active(w) ((W)(w))->active
339#define ev_at(w) ((WT)(w))->at 495#define ev_at(w) ((WT)(w))->at
340 496
341#if EV_USE_MONOTONIC 497#if EV_USE_REALTIME
342/* 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 */
343/* 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
344static 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)
345#endif 515#endif
346 516
347#ifdef _WIN32 517#ifdef _WIN32
348# include "ev_win32.c" 518# include "ev_win32.c"
349#endif 519#endif
350 520
351/*****************************************************************************/ 521/*****************************************************************************/
352 522
523#if EV_AVOID_STDIO
524static void noinline
525ev_printerr (const char *msg)
526{
527 write (STDERR_FILENO, msg, strlen (msg));
528}
529#endif
530
353static void (*syserr_cb)(const char *msg); 531static void (*syserr_cb)(const char *msg);
354 532
355void 533void
356ev_set_syserr_cb (void (*cb)(const char *msg)) 534ev_set_syserr_cb (void (*cb)(const char *msg))
357{ 535{
358 syserr_cb = cb; 536 syserr_cb = cb;
359} 537}
360 538
361static void noinline 539static void noinline
362syserr (const char *msg) 540ev_syserr (const char *msg)
363{ 541{
364 if (!msg) 542 if (!msg)
365 msg = "(libev) system error"; 543 msg = "(libev) system error";
366 544
367 if (syserr_cb) 545 if (syserr_cb)
368 syserr_cb (msg); 546 syserr_cb (msg);
369 else 547 else
370 { 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
371 perror (msg); 557 perror (msg);
558#endif
372 abort (); 559 abort ();
373 } 560 }
374} 561}
375 562
376static void * 563static void *
377ev_realloc_emul (void *ptr, long size) 564ev_realloc_emul (void *ptr, long size)
378{ 565{
566#if __GLIBC__
567 return realloc (ptr, size);
568#else
379 /* some systems, notably openbsd and darwin, fail to properly 569 /* some systems, notably openbsd and darwin, fail to properly
380 * 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
381 * the single unix specification, so work around them here. 571 * the single unix specification, so work around them here.
382 */ 572 */
383 573
384 if (size) 574 if (size)
385 return realloc (ptr, size); 575 return realloc (ptr, size);
386 576
387 free (ptr); 577 free (ptr);
388 return 0; 578 return 0;
579#endif
389} 580}
390 581
391static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 582static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
392 583
393void 584void
… …
401{ 592{
402 ptr = alloc (ptr, size); 593 ptr = alloc (ptr, size);
403 594
404 if (!ptr && size) 595 if (!ptr && size)
405 { 596 {
597#if EV_AVOID_STDIO
598 ev_printerr ("libev: memory allocation failed, aborting.\n");
599#else
406 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 600 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
601#endif
407 abort (); 602 abort ();
408 } 603 }
409 604
410 return ptr; 605 return ptr;
411} 606}
… …
413#define ev_malloc(size) ev_realloc (0, (size)) 608#define ev_malloc(size) ev_realloc (0, (size))
414#define ev_free(ptr) ev_realloc ((ptr), 0) 609#define ev_free(ptr) ev_realloc ((ptr), 0)
415 610
416/*****************************************************************************/ 611/*****************************************************************************/
417 612
613/* set in reify when reification needed */
614#define EV_ANFD_REIFY 1
615
616/* file descriptor info structure */
418typedef struct 617typedef struct
419{ 618{
420 WL head; 619 WL head;
421 unsigned char events; 620 unsigned char events; /* the events watched for */
621 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
622 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
422 unsigned char reify; 623 unsigned char unused;
624#if EV_USE_EPOLL
625 unsigned int egen; /* generation counter to counter epoll bugs */
626#endif
423#if EV_SELECT_IS_WINSOCKET 627#if EV_SELECT_IS_WINSOCKET
424 SOCKET handle; 628 SOCKET handle;
425#endif 629#endif
426} ANFD; 630} ANFD;
427 631
632/* stores the pending event set for a given watcher */
428typedef struct 633typedef struct
429{ 634{
430 W w; 635 W w;
431 int events; 636 int events; /* the pending event set for the given watcher */
432} ANPENDING; 637} ANPENDING;
433 638
434#if EV_USE_INOTIFY 639#if EV_USE_INOTIFY
435/* hash table entry per inotify-id */ 640/* hash table entry per inotify-id */
436typedef struct 641typedef struct
… …
439} ANFS; 644} ANFS;
440#endif 645#endif
441 646
442/* Heap Entry */ 647/* Heap Entry */
443#if EV_HEAP_CACHE_AT 648#if EV_HEAP_CACHE_AT
649 /* a heap element */
444 typedef struct { 650 typedef struct {
445 ev_tstamp at; 651 ev_tstamp at;
446 WT w; 652 WT w;
447 } ANHE; 653 } ANHE;
448 654
449 #define ANHE_w(he) (he).w /* access watcher, read-write */ 655 #define ANHE_w(he) (he).w /* access watcher, read-write */
450 #define ANHE_at(he) (he).at /* access cached at, read-only */ 656 #define ANHE_at(he) (he).at /* access cached at, read-only */
451 #define ANHE_at_set(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 */
452#else 658#else
659 /* a heap element */
453 typedef WT ANHE; 660 typedef WT ANHE;
454 661
455 #define ANHE_w(he) (he) 662 #define ANHE_w(he) (he)
456 #define ANHE_at(he) (he)->at 663 #define ANHE_at(he) (he)->at
457 #define ANHE_at_set(he) 664 #define ANHE_at_cache(he)
458#endif 665#endif
459 666
460#if EV_MULTIPLICITY 667#if EV_MULTIPLICITY
461 668
462 struct ev_loop 669 struct ev_loop
… …
481 688
482 static int ev_default_loop_ptr; 689 static int ev_default_loop_ptr;
483 690
484#endif 691#endif
485 692
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
486/*****************************************************************************/ 705/*****************************************************************************/
487 706
707#ifndef EV_HAVE_EV_TIME
488ev_tstamp 708ev_tstamp
489ev_time (void) 709ev_time (void)
490{ 710{
491#if EV_USE_REALTIME 711#if EV_USE_REALTIME
712 if (expect_true (have_realtime))
713 {
492 struct timespec ts; 714 struct timespec ts;
493 clock_gettime (CLOCK_REALTIME, &ts); 715 clock_gettime (CLOCK_REALTIME, &ts);
494 return ts.tv_sec + ts.tv_nsec * 1e-9; 716 return ts.tv_sec + ts.tv_nsec * 1e-9;
495#else 717 }
718#endif
719
496 struct timeval tv; 720 struct timeval tv;
497 gettimeofday (&tv, 0); 721 gettimeofday (&tv, 0);
498 return tv.tv_sec + tv.tv_usec * 1e-6; 722 return tv.tv_sec + tv.tv_usec * 1e-6;
499#endif
500} 723}
724#endif
501 725
502ev_tstamp inline_size 726inline_size ev_tstamp
503get_clock (void) 727get_clock (void)
504{ 728{
505#if EV_USE_MONOTONIC 729#if EV_USE_MONOTONIC
506 if (expect_true (have_monotonic)) 730 if (expect_true (have_monotonic))
507 { 731 {
… …
540 struct timeval tv; 764 struct timeval tv;
541 765
542 tv.tv_sec = (time_t)delay; 766 tv.tv_sec = (time_t)delay;
543 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 767 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
544 768
769 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
770 /* something not guaranteed by newer posix versions, but guaranteed */
771 /* by older ones */
545 select (0, 0, 0, 0, &tv); 772 select (0, 0, 0, 0, &tv);
546#endif 773#endif
547 } 774 }
548} 775}
549 776
550/*****************************************************************************/ 777/*****************************************************************************/
551 778
552#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 */
553 780
554int 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
555array_nextsize (int elem, int cur, int cnt) 784array_nextsize (int elem, int cur, int cnt)
556{ 785{
557 int ncur = cur + 1; 786 int ncur = cur + 1;
558 787
559 do 788 do
… …
576array_realloc (int elem, void *base, int *cur, int cnt) 805array_realloc (int elem, void *base, int *cur, int cnt)
577{ 806{
578 *cur = array_nextsize (elem, *cur, cnt); 807 *cur = array_nextsize (elem, *cur, cnt);
579 return ev_realloc (base, elem * *cur); 808 return ev_realloc (base, elem * *cur);
580} 809}
810
811#define array_init_zero(base,count) \
812 memset ((void *)(base), 0, sizeof (*(base)) * (count))
581 813
582#define array_needsize(type,base,cur,cnt,init) \ 814#define array_needsize(type,base,cur,cnt,init) \
583 if (expect_false ((cnt) > (cur))) \ 815 if (expect_false ((cnt) > (cur))) \
584 { \ 816 { \
585 int ocur_ = (cur); \ 817 int ocur_ = (cur); \
… …
597 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 829 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
598 } 830 }
599#endif 831#endif
600 832
601#define array_free(stem, idx) \ 833#define array_free(stem, idx) \
602 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
603 835
604/*****************************************************************************/ 836/*****************************************************************************/
837
838/* dummy callback for pending events */
839static void noinline
840pendingcb (EV_P_ ev_prepare *w, int revents)
841{
842}
605 843
606void noinline 844void noinline
607ev_feed_event (EV_P_ void *w, int revents) 845ev_feed_event (EV_P_ void *w, int revents)
608{ 846{
609 W w_ = (W)w; 847 W w_ = (W)w;
… …
618 pendings [pri][w_->pending - 1].w = w_; 856 pendings [pri][w_->pending - 1].w = w_;
619 pendings [pri][w_->pending - 1].events = revents; 857 pendings [pri][w_->pending - 1].events = revents;
620 } 858 }
621} 859}
622 860
623void 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
624queue_events (EV_P_ W *events, int eventcnt, int type) 877queue_events (EV_P_ W *events, int eventcnt, int type)
625{ 878{
626 int i; 879 int i;
627 880
628 for (i = 0; i < eventcnt; ++i) 881 for (i = 0; i < eventcnt; ++i)
629 ev_feed_event (EV_A_ events [i], type); 882 ev_feed_event (EV_A_ events [i], type);
630} 883}
631 884
632/*****************************************************************************/ 885/*****************************************************************************/
633 886
634void inline_size 887inline_speed void
635anfds_init (ANFD *base, int count)
636{
637 while (count--)
638 {
639 base->head = 0;
640 base->events = EV_NONE;
641 base->reify = 0;
642
643 ++base;
644 }
645}
646
647void inline_speed
648fd_event (EV_P_ int fd, int revents) 888fd_event_nocheck (EV_P_ int fd, int revents)
649{ 889{
650 ANFD *anfd = anfds + fd; 890 ANFD *anfd = anfds + fd;
651 ev_io *w; 891 ev_io *w;
652 892
653 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)
… …
657 if (ev) 897 if (ev)
658 ev_feed_event (EV_A_ (W)w, ev); 898 ev_feed_event (EV_A_ (W)w, ev);
659 } 899 }
660} 900}
661 901
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
662void 913void
663ev_feed_fd_event (EV_P_ int fd, int revents) 914ev_feed_fd_event (EV_P_ int fd, int revents)
664{ 915{
665 if (fd >= 0 && fd < anfdmax) 916 if (fd >= 0 && fd < anfdmax)
666 fd_event (EV_A_ fd, revents); 917 fd_event_nocheck (EV_A_ fd, revents);
667} 918}
668 919
669void inline_size 920/* make sure the external fd watch events are in-sync */
921/* with the kernel/libev internal state */
922inline_size void
670fd_reify (EV_P) 923fd_reify (EV_P)
671{ 924{
672 int i; 925 int i;
673 926
674 for (i = 0; i < fdchangecnt; ++i) 927 for (i = 0; i < fdchangecnt; ++i)
… …
683 events |= (unsigned char)w->events; 936 events |= (unsigned char)w->events;
684 937
685#if EV_SELECT_IS_WINSOCKET 938#if EV_SELECT_IS_WINSOCKET
686 if (events) 939 if (events)
687 { 940 {
688 unsigned long argp; 941 unsigned long arg;
689 #ifdef EV_FD_TO_WIN32_HANDLE
690 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 942 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
691 #else
692 anfd->handle = _get_osfhandle (fd);
693 #endif
694 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 943 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
695 } 944 }
696#endif 945#endif
697 946
698 { 947 {
699 unsigned char o_events = anfd->events; 948 unsigned char o_events = anfd->events;
700 unsigned char o_reify = anfd->reify; 949 unsigned char o_reify = anfd->reify;
701 950
702 anfd->reify = 0; 951 anfd->reify = 0;
703 anfd->events = events; 952 anfd->events = events;
704 953
705 if (o_events != events || o_reify & EV_IOFDSET) 954 if (o_events != events || o_reify & EV__IOFDSET)
706 backend_modify (EV_A_ fd, o_events, events); 955 backend_modify (EV_A_ fd, o_events, events);
707 } 956 }
708 } 957 }
709 958
710 fdchangecnt = 0; 959 fdchangecnt = 0;
711} 960}
712 961
713void inline_size 962/* something about the given fd changed */
963inline_size void
714fd_change (EV_P_ int fd, int flags) 964fd_change (EV_P_ int fd, int flags)
715{ 965{
716 unsigned char reify = anfds [fd].reify; 966 unsigned char reify = anfds [fd].reify;
717 anfds [fd].reify |= flags; 967 anfds [fd].reify |= flags;
718 968
… …
722 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 972 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
723 fdchanges [fdchangecnt - 1] = fd; 973 fdchanges [fdchangecnt - 1] = fd;
724 } 974 }
725} 975}
726 976
727void inline_speed 977/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
978inline_speed void
728fd_kill (EV_P_ int fd) 979fd_kill (EV_P_ int fd)
729{ 980{
730 ev_io *w; 981 ev_io *w;
731 982
732 while ((w = (ev_io *)anfds [fd].head)) 983 while ((w = (ev_io *)anfds [fd].head))
… …
734 ev_io_stop (EV_A_ w); 985 ev_io_stop (EV_A_ w);
735 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);
736 } 987 }
737} 988}
738 989
739int inline_size 990/* check whether the given fd is actually valid, for error recovery */
991inline_size int
740fd_valid (int fd) 992fd_valid (int fd)
741{ 993{
742#ifdef _WIN32 994#ifdef _WIN32
743 return _get_osfhandle (fd) != -1; 995 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
744#else 996#else
745 return fcntl (fd, F_GETFD) != -1; 997 return fcntl (fd, F_GETFD) != -1;
746#endif 998#endif
747} 999}
748 1000
… …
752{ 1004{
753 int fd; 1005 int fd;
754 1006
755 for (fd = 0; fd < anfdmax; ++fd) 1007 for (fd = 0; fd < anfdmax; ++fd)
756 if (anfds [fd].events) 1008 if (anfds [fd].events)
757 if (!fd_valid (fd) == -1 && errno == EBADF) 1009 if (!fd_valid (fd) && errno == EBADF)
758 fd_kill (EV_A_ fd); 1010 fd_kill (EV_A_ fd);
759} 1011}
760 1012
761/* called on ENOMEM in select/poll to kill some fds and retry */ 1013/* called on ENOMEM in select/poll to kill some fds and retry */
762static void noinline 1014static void noinline
… …
766 1018
767 for (fd = anfdmax; fd--; ) 1019 for (fd = anfdmax; fd--; )
768 if (anfds [fd].events) 1020 if (anfds [fd].events)
769 { 1021 {
770 fd_kill (EV_A_ fd); 1022 fd_kill (EV_A_ fd);
771 return; 1023 break;
772 } 1024 }
773} 1025}
774 1026
775/* 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 */
776static void noinline 1028static void noinline
… …
780 1032
781 for (fd = 0; fd < anfdmax; ++fd) 1033 for (fd = 0; fd < anfdmax; ++fd)
782 if (anfds [fd].events) 1034 if (anfds [fd].events)
783 { 1035 {
784 anfds [fd].events = 0; 1036 anfds [fd].events = 0;
1037 anfds [fd].emask = 0;
785 fd_change (EV_A_ fd, EV_IOFDSET | 1); 1038 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
786 } 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
787} 1054}
788 1055
789/*****************************************************************************/ 1056/*****************************************************************************/
790 1057
791/* 1058/*
… …
803#if EV_USE_4HEAP 1070#if EV_USE_4HEAP
804 1071
805#define DHEAP 4 1072#define DHEAP 4
806#define HEAP0 (DHEAP - 1) /* index of first element in heap */ 1073#define HEAP0 (DHEAP - 1) /* index of first element in heap */
807#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) 1074#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
808 1075#define UPHEAP_DONE(p,k) ((p) == (k))
809/* towards the root */
810void inline_speed
811upheap (ANHE *heap, int k)
812{
813 ANHE he = heap [k];
814
815 for (;;)
816 {
817 int p = HPARENT (k);
818
819 if (p == k || ANHE_at (heap [p]) <= ANHE_at (he))
820 break;
821
822 heap [k] = heap [p];
823 ev_active (ANHE_w (heap [k])) = k;
824 k = p;
825 }
826
827 heap [k] = he;
828 ev_active (ANHE_w (he)) = k;
829}
830 1076
831/* away from the root */ 1077/* away from the root */
832void inline_speed 1078inline_speed void
833downheap (ANHE *heap, int N, int k) 1079downheap (ANHE *heap, int N, int k)
834{ 1080{
835 ANHE he = heap [k]; 1081 ANHE he = heap [k];
836 ANHE *E = heap + N + HEAP0; 1082 ANHE *E = heap + N + HEAP0;
837 1083
838 for (;;) 1084 for (;;)
839 { 1085 {
840 ev_tstamp minat; 1086 ev_tstamp minat;
841 ANHE *minpos; 1087 ANHE *minpos;
842 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; 1088 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
843 1089
844 // find minimum child 1090 /* find minimum child */
845 if (expect_true (pos + DHEAP - 1 < E)) 1091 if (expect_true (pos + DHEAP - 1 < E))
846 { 1092 {
847 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 1093 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
848 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 1094 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos));
849 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 1095 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos));
… …
870 1116
871 heap [k] = he; 1117 heap [k] = he;
872 ev_active (ANHE_w (he)) = k; 1118 ev_active (ANHE_w (he)) = k;
873} 1119}
874 1120
875#else // 4HEAP 1121#else /* 4HEAP */
876 1122
877#define HEAP0 1 1123#define HEAP0 1
878#define HPARENT(k) ((k) >> 1) 1124#define HPARENT(k) ((k) >> 1)
1125#define UPHEAP_DONE(p,k) (!(p))
879 1126
880/* towards the root */ 1127/* away from the root */
881void inline_speed 1128inline_speed void
882upheap (ANHE *heap, int k) 1129downheap (ANHE *heap, int N, int k)
883{ 1130{
884 ANHE he = heap [k]; 1131 ANHE he = heap [k];
885 1132
886 for (;;) 1133 for (;;)
887 { 1134 {
888 int p = HPARENT (k); 1135 int c = k << 1;
889 1136
890 /* maybe we could use a dummy element at heap [0]? */ 1137 if (c >= N + HEAP0)
891 if (!p || ANHE_at (heap [p]) <= ANHE_at (he))
892 break; 1138 break;
893 1139
894 heap [k] = heap [p];
895 ev_active (ANHE_w (heap [k])) = k;
896 k = p;
897 }
898
899 heap [k] = he;
900 ev_active (ANHE_w (heap [k])) = k;
901}
902
903/* away from the root */
904void inline_speed
905downheap (ANHE *heap, int N, int k)
906{
907 ANHE he = heap [k];
908
909 for (;;)
910 {
911 int c = k << 1;
912
913 if (c > N)
914 break;
915
916 c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1140 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
917 ? 1 : 0; 1141 ? 1 : 0;
918 1142
919 if (ANHE_at (he) <= ANHE_at (heap [c])) 1143 if (ANHE_at (he) <= ANHE_at (heap [c]))
920 break; 1144 break;
921 1145
… …
928 heap [k] = he; 1152 heap [k] = he;
929 ev_active (ANHE_w (he)) = k; 1153 ev_active (ANHE_w (he)) = k;
930} 1154}
931#endif 1155#endif
932 1156
933void inline_size 1157/* towards the root */
1158inline_speed void
1159upheap (ANHE *heap, int k)
1160{
1161 ANHE he = heap [k];
1162
1163 for (;;)
1164 {
1165 int p = HPARENT (k);
1166
1167 if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he))
1168 break;
1169
1170 heap [k] = heap [p];
1171 ev_active (ANHE_w (heap [k])) = k;
1172 k = p;
1173 }
1174
1175 heap [k] = he;
1176 ev_active (ANHE_w (he)) = k;
1177}
1178
1179/* move an element suitably so it is in a correct place */
1180inline_size void
934adjustheap (ANHE *heap, int N, int k) 1181adjustheap (ANHE *heap, int N, int k)
935{ 1182{
936 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)]))
937 upheap (heap, k); 1184 upheap (heap, k);
938 else 1185 else
939 downheap (heap, N, k); 1186 downheap (heap, N, k);
940} 1187}
941 1188
1189/* rebuild the heap: this function is used only once and executed rarely */
1190inline_size void
1191reheap (ANHE *heap, int N)
1192{
1193 int i;
1194
1195 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
1196 /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */
1197 for (i = 0; i < N; ++i)
1198 upheap (heap, i + HEAP0);
1199}
1200
942/*****************************************************************************/ 1201/*****************************************************************************/
943 1202
1203/* associate signal watchers to a signal signal */
944typedef struct 1204typedef struct
945{ 1205{
1206 EV_ATOMIC_T pending;
1207#if EV_MULTIPLICITY
1208 EV_P;
1209#endif
946 WL head; 1210 WL head;
947 EV_ATOMIC_T gotsig;
948} ANSIG; 1211} ANSIG;
949 1212
950static ANSIG *signals; 1213static ANSIG signals [EV_NSIG - 1];
951static int signalmax;
952
953static EV_ATOMIC_T gotsig;
954
955void inline_size
956signals_init (ANSIG *base, int count)
957{
958 while (count--)
959 {
960 base->head = 0;
961 base->gotsig = 0;
962
963 ++base;
964 }
965}
966 1214
967/*****************************************************************************/ 1215/*****************************************************************************/
968 1216
969void inline_speed 1217#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
970fd_intern (int fd)
971{
972#ifdef _WIN32
973 int arg = 1;
974 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
975#else
976 fcntl (fd, F_SETFD, FD_CLOEXEC);
977 fcntl (fd, F_SETFL, O_NONBLOCK);
978#endif
979}
980 1218
981static void noinline 1219static void noinline
982evpipe_init (EV_P) 1220evpipe_init (EV_P)
983{ 1221{
984 if (!ev_is_active (&pipeev)) 1222 if (!ev_is_active (&pipe_w))
985 { 1223 {
986#if EV_USE_EVENTFD 1224# if EV_USE_EVENTFD
1225 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1226 if (evfd < 0 && errno == EINVAL)
987 if ((evfd = eventfd (0, 0)) >= 0) 1227 evfd = eventfd (0, 0);
1228
1229 if (evfd >= 0)
988 { 1230 {
989 evpipe [0] = -1; 1231 evpipe [0] = -1;
990 fd_intern (evfd); 1232 fd_intern (evfd); /* doing it twice doesn't hurt */
991 ev_io_set (&pipeev, evfd, EV_READ); 1233 ev_io_set (&pipe_w, evfd, EV_READ);
992 } 1234 }
993 else 1235 else
994#endif 1236# endif
995 { 1237 {
996 while (pipe (evpipe)) 1238 while (pipe (evpipe))
997 syserr ("(libev) error creating signal/async pipe"); 1239 ev_syserr ("(libev) error creating signal/async pipe");
998 1240
999 fd_intern (evpipe [0]); 1241 fd_intern (evpipe [0]);
1000 fd_intern (evpipe [1]); 1242 fd_intern (evpipe [1]);
1001 ev_io_set (&pipeev, evpipe [0], EV_READ); 1243 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1002 } 1244 }
1003 1245
1004 ev_io_start (EV_A_ &pipeev); 1246 ev_io_start (EV_A_ &pipe_w);
1005 ev_unref (EV_A); /* watcher should not keep loop alive */ 1247 ev_unref (EV_A); /* watcher should not keep loop alive */
1006 } 1248 }
1007} 1249}
1008 1250
1009void inline_size 1251inline_size void
1010evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1252evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1011{ 1253{
1012 if (!*flag) 1254 if (!*flag)
1013 { 1255 {
1014 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;
1015 1258
1016 *flag = 1; 1259 *flag = 1;
1017 1260
1018#if EV_USE_EVENTFD 1261#if EV_USE_EVENTFD
1019 if (evfd >= 0) 1262 if (evfd >= 0)
… …
1021 uint64_t counter = 1; 1264 uint64_t counter = 1;
1022 write (evfd, &counter, sizeof (uint64_t)); 1265 write (evfd, &counter, sizeof (uint64_t));
1023 } 1266 }
1024 else 1267 else
1025#endif 1268#endif
1026 write (evpipe [1], &old_errno, 1); 1269 write (evpipe [1], &dummy, 1);
1027 1270
1028 errno = old_errno; 1271 errno = old_errno;
1029 } 1272 }
1030} 1273}
1031 1274
1275/* called whenever the libev signal pipe */
1276/* got some events (signal, async) */
1032static void 1277static void
1033pipecb (EV_P_ ev_io *iow, int revents) 1278pipecb (EV_P_ ev_io *iow, int revents)
1034{ 1279{
1280 int i;
1281
1035#if EV_USE_EVENTFD 1282#if EV_USE_EVENTFD
1036 if (evfd >= 0) 1283 if (evfd >= 0)
1037 { 1284 {
1038 uint64_t counter; 1285 uint64_t counter;
1039 read (evfd, &counter, sizeof (uint64_t)); 1286 read (evfd, &counter, sizeof (uint64_t));
… …
1043 { 1290 {
1044 char dummy; 1291 char dummy;
1045 read (evpipe [0], &dummy, 1); 1292 read (evpipe [0], &dummy, 1);
1046 } 1293 }
1047 1294
1048 if (gotsig && ev_is_default_loop (EV_A)) 1295 if (sig_pending)
1049 { 1296 {
1050 int signum; 1297 sig_pending = 0;
1051 gotsig = 0;
1052 1298
1053 for (signum = signalmax; signum--; ) 1299 for (i = EV_NSIG - 1; i--; )
1054 if (signals [signum].gotsig) 1300 if (expect_false (signals [i].pending))
1055 ev_feed_signal_event (EV_A_ signum + 1); 1301 ev_feed_signal_event (EV_A_ i + 1);
1056 } 1302 }
1057 1303
1058#if EV_ASYNC_ENABLE 1304#if EV_ASYNC_ENABLE
1059 if (gotasync) 1305 if (async_pending)
1060 { 1306 {
1061 int i; 1307 async_pending = 0;
1062 gotasync = 0;
1063 1308
1064 for (i = asynccnt; i--; ) 1309 for (i = asynccnt; i--; )
1065 if (asyncs [i]->sent) 1310 if (asyncs [i]->sent)
1066 { 1311 {
1067 asyncs [i]->sent = 0; 1312 asyncs [i]->sent = 0;
… …
1075 1320
1076static void 1321static void
1077ev_sighandler (int signum) 1322ev_sighandler (int signum)
1078{ 1323{
1079#if EV_MULTIPLICITY 1324#if EV_MULTIPLICITY
1080 struct ev_loop *loop = &default_loop_struct; 1325 EV_P = signals [signum - 1].loop;
1081#endif 1326#endif
1082 1327
1083#if _WIN32 1328#ifdef _WIN32
1084 signal (signum, ev_sighandler); 1329 signal (signum, ev_sighandler);
1085#endif 1330#endif
1086 1331
1087 signals [signum - 1].gotsig = 1; 1332 signals [signum - 1].pending = 1;
1088 evpipe_write (EV_A_ &gotsig); 1333 evpipe_write (EV_A_ &sig_pending);
1089} 1334}
1090 1335
1091void noinline 1336void noinline
1092ev_feed_signal_event (EV_P_ int signum) 1337ev_feed_signal_event (EV_P_ int signum)
1093{ 1338{
1094 WL w; 1339 WL w;
1095 1340
1341 if (expect_false (signum <= 0 || signum > EV_NSIG))
1342 return;
1343
1344 --signum;
1345
1096#if EV_MULTIPLICITY 1346#if EV_MULTIPLICITY
1097 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 */
1098#endif 1348 /* or, likely more useful, feeding a signal nobody is waiting for */
1099 1349
1100 --signum; 1350 if (expect_false (signals [signum].loop != EV_A))
1101
1102 if (signum < 0 || signum >= signalmax)
1103 return; 1351 return;
1352#endif
1104 1353
1105 signals [signum].gotsig = 0; 1354 signals [signum].pending = 0;
1106 1355
1107 for (w = signals [signum].head; w; w = w->next) 1356 for (w = signals [signum].head; w; w = w->next)
1108 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1357 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1109} 1358}
1110 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
1111/*****************************************************************************/ 1382/*****************************************************************************/
1112 1383
1384#if EV_CHILD_ENABLE
1113static WL childs [EV_PID_HASHSIZE]; 1385static WL childs [EV_PID_HASHSIZE];
1114
1115#ifndef _WIN32
1116 1386
1117static ev_signal childev; 1387static ev_signal childev;
1118 1388
1119#ifndef WIFCONTINUED 1389#ifndef WIFCONTINUED
1120# define WIFCONTINUED(status) 0 1390# define WIFCONTINUED(status) 0
1121#endif 1391#endif
1122 1392
1123void inline_speed 1393/* handle a single child status event */
1394inline_speed void
1124child_reap (EV_P_ int chain, int pid, int status) 1395child_reap (EV_P_ int chain, int pid, int status)
1125{ 1396{
1126 ev_child *w; 1397 ev_child *w;
1127 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1398 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1128 1399
1129 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)
1130 { 1401 {
1131 if ((w->pid == pid || !w->pid) 1402 if ((w->pid == pid || !w->pid)
1132 && (!traced || (w->flags & 1))) 1403 && (!traced || (w->flags & 1)))
1133 { 1404 {
1134 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 */
… …
1141 1412
1142#ifndef WCONTINUED 1413#ifndef WCONTINUED
1143# define WCONTINUED 0 1414# define WCONTINUED 0
1144#endif 1415#endif
1145 1416
1417/* called on sigchld etc., calls waitpid */
1146static void 1418static void
1147childcb (EV_P_ ev_signal *sw, int revents) 1419childcb (EV_P_ ev_signal *sw, int revents)
1148{ 1420{
1149 int pid, status; 1421 int pid, status;
1150 1422
… …
1158 /* 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 */
1159 /* 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 */
1160 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1432 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1161 1433
1162 child_reap (EV_A_ pid, pid, status); 1434 child_reap (EV_A_ pid, pid, status);
1163 if (EV_PID_HASHSIZE > 1) 1435 if ((EV_PID_HASHSIZE) > 1)
1164 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 */
1165} 1437}
1166 1438
1167#endif 1439#endif
1168 1440
… …
1231 /* kqueue is borked on everything but netbsd apparently */ 1503 /* kqueue is borked on everything but netbsd apparently */
1232 /* 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 */
1233 flags &= ~EVBACKEND_KQUEUE; 1505 flags &= ~EVBACKEND_KQUEUE;
1234#endif 1506#endif
1235#ifdef __APPLE__ 1507#ifdef __APPLE__
1236 // flags &= ~EVBACKEND_KQUEUE; for documentation 1508 /* only select works correctly on that "unix-certified" platform */
1237 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) */
1238#endif 1514#endif
1239 1515
1240 return flags; 1516 return flags;
1241} 1517}
1242 1518
… …
1256ev_backend (EV_P) 1532ev_backend (EV_P)
1257{ 1533{
1258 return backend; 1534 return backend;
1259} 1535}
1260 1536
1537#if EV_FEATURE_API
1261unsigned int 1538unsigned int
1262ev_loop_count (EV_P) 1539ev_iteration (EV_P)
1263{ 1540{
1264 return loop_count; 1541 return loop_count;
1265} 1542}
1266 1543
1544unsigned int
1545ev_depth (EV_P)
1546{
1547 return loop_depth;
1548}
1549
1267void 1550void
1268ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1551ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1269{ 1552{
1270 io_blocktime = interval; 1553 io_blocktime = interval;
1271} 1554}
… …
1274ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1557ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1275{ 1558{
1276 timeout_blocktime = interval; 1559 timeout_blocktime = interval;
1277} 1560}
1278 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 */
1279static void noinline 1587static void noinline
1280loop_init (EV_P_ unsigned int flags) 1588loop_init (EV_P_ unsigned int flags)
1281{ 1589{
1282 if (!backend) 1590 if (!backend)
1283 { 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
1284#if EV_USE_MONOTONIC 1602#if EV_USE_MONOTONIC
1603 if (!have_monotonic)
1285 { 1604 {
1286 struct timespec ts; 1605 struct timespec ts;
1606
1287 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1607 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1288 have_monotonic = 1; 1608 have_monotonic = 1;
1289 } 1609 }
1290#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"));
1291 1622
1292 ev_rt_now = ev_time (); 1623 ev_rt_now = ev_time ();
1293 mn_now = get_clock (); 1624 mn_now = get_clock ();
1294 now_floor = mn_now; 1625 now_floor = mn_now;
1295 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
1296 1630
1297 io_blocktime = 0.; 1631 io_blocktime = 0.;
1298 timeout_blocktime = 0.; 1632 timeout_blocktime = 0.;
1299 backend = 0; 1633 backend = 0;
1300 backend_fd = -1; 1634 backend_fd = -1;
1301 gotasync = 0; 1635 sig_pending = 0;
1636#if EV_ASYNC_ENABLE
1637 async_pending = 0;
1638#endif
1302#if EV_USE_INOTIFY 1639#if EV_USE_INOTIFY
1303 fs_fd = -2; 1640 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1304#endif 1641#endif
1305 1642#if EV_USE_SIGNALFD
1306 /* pid check not overridable via env */ 1643 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1307#ifndef _WIN32
1308 if (flags & EVFLAG_FORKCHECK)
1309 curpid = getpid ();
1310#endif 1644#endif
1311
1312 if (!(flags & EVFLAG_NOENV)
1313 && !enable_secure ()
1314 && getenv ("LIBEV_FLAGS"))
1315 flags = atoi (getenv ("LIBEV_FLAGS"));
1316 1645
1317 if (!(flags & 0x0000ffffU)) 1646 if (!(flags & 0x0000ffffU))
1318 flags |= ev_recommended_backends (); 1647 flags |= ev_recommended_backends ();
1319 1648
1320#if EV_USE_PORT 1649#if EV_USE_PORT
… …
1331#endif 1660#endif
1332#if EV_USE_SELECT 1661#if EV_USE_SELECT
1333 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1662 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1334#endif 1663#endif
1335 1664
1665 ev_prepare_init (&pending_w, pendingcb);
1666
1667#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1336 ev_init (&pipeev, pipecb); 1668 ev_init (&pipe_w, pipecb);
1337 ev_set_priority (&pipeev, EV_MAXPRI); 1669 ev_set_priority (&pipe_w, EV_MAXPRI);
1670#endif
1338 } 1671 }
1339} 1672}
1340 1673
1674/* free up a loop structure */
1341static void noinline 1675static void noinline
1342loop_destroy (EV_P) 1676loop_destroy (EV_P)
1343{ 1677{
1344 int i; 1678 int i;
1345 1679
1346 if (ev_is_active (&pipeev)) 1680 if (ev_is_active (&pipe_w))
1347 { 1681 {
1348 ev_ref (EV_A); /* signal watcher */ 1682 /*ev_ref (EV_A);*/
1349 ev_io_stop (EV_A_ &pipeev); 1683 /*ev_io_stop (EV_A_ &pipe_w);*/
1350 1684
1351#if EV_USE_EVENTFD 1685#if EV_USE_EVENTFD
1352 if (evfd >= 0) 1686 if (evfd >= 0)
1353 close (evfd); 1687 close (evfd);
1354#endif 1688#endif
1355 1689
1356 if (evpipe [0] >= 0) 1690 if (evpipe [0] >= 0)
1357 { 1691 {
1358 close (evpipe [0]); 1692 EV_WIN32_CLOSE_FD (evpipe [0]);
1359 close (evpipe [1]); 1693 EV_WIN32_CLOSE_FD (evpipe [1]);
1360 } 1694 }
1361 } 1695 }
1696
1697#if EV_USE_SIGNALFD
1698 if (ev_is_active (&sigfd_w))
1699 close (sigfd);
1700#endif
1362 1701
1363#if EV_USE_INOTIFY 1702#if EV_USE_INOTIFY
1364 if (fs_fd >= 0) 1703 if (fs_fd >= 0)
1365 close (fs_fd); 1704 close (fs_fd);
1366#endif 1705#endif
… …
1390#if EV_IDLE_ENABLE 1729#if EV_IDLE_ENABLE
1391 array_free (idle, [i]); 1730 array_free (idle, [i]);
1392#endif 1731#endif
1393 } 1732 }
1394 1733
1395 ev_free (anfds); anfdmax = 0; 1734 ev_free (anfds); anfds = 0; anfdmax = 0;
1396 1735
1397 /* 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);
1398 array_free (fdchange, EMPTY); 1738 array_free (fdchange, EMPTY);
1399 array_free (timer, EMPTY); 1739 array_free (timer, EMPTY);
1400#if EV_PERIODIC_ENABLE 1740#if EV_PERIODIC_ENABLE
1401 array_free (periodic, EMPTY); 1741 array_free (periodic, EMPTY);
1402#endif 1742#endif
… …
1411 1751
1412 backend = 0; 1752 backend = 0;
1413} 1753}
1414 1754
1415#if EV_USE_INOTIFY 1755#if EV_USE_INOTIFY
1416void inline_size infy_fork (EV_P); 1756inline_size void infy_fork (EV_P);
1417#endif 1757#endif
1418 1758
1419void inline_size 1759inline_size void
1420loop_fork (EV_P) 1760loop_fork (EV_P)
1421{ 1761{
1422#if EV_USE_PORT 1762#if EV_USE_PORT
1423 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1763 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1424#endif 1764#endif
… …
1430#endif 1770#endif
1431#if EV_USE_INOTIFY 1771#if EV_USE_INOTIFY
1432 infy_fork (EV_A); 1772 infy_fork (EV_A);
1433#endif 1773#endif
1434 1774
1435 if (ev_is_active (&pipeev)) 1775 if (ev_is_active (&pipe_w))
1436 { 1776 {
1437 /* this "locks" the handlers against writing to the pipe */ 1777 /* this "locks" the handlers against writing to the pipe */
1438 /* while we modify the fd vars */ 1778 /* while we modify the fd vars */
1439 gotsig = 1; 1779 sig_pending = 1;
1440#if EV_ASYNC_ENABLE 1780#if EV_ASYNC_ENABLE
1441 gotasync = 1; 1781 async_pending = 1;
1442#endif 1782#endif
1443 1783
1444 ev_ref (EV_A); 1784 ev_ref (EV_A);
1445 ev_io_stop (EV_A_ &pipeev); 1785 ev_io_stop (EV_A_ &pipe_w);
1446 1786
1447#if EV_USE_EVENTFD 1787#if EV_USE_EVENTFD
1448 if (evfd >= 0) 1788 if (evfd >= 0)
1449 close (evfd); 1789 close (evfd);
1450#endif 1790#endif
1451 1791
1452 if (evpipe [0] >= 0) 1792 if (evpipe [0] >= 0)
1453 { 1793 {
1454 close (evpipe [0]); 1794 EV_WIN32_CLOSE_FD (evpipe [0]);
1455 close (evpipe [1]); 1795 EV_WIN32_CLOSE_FD (evpipe [1]);
1456 } 1796 }
1457 1797
1798#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1458 evpipe_init (EV_A); 1799 evpipe_init (EV_A);
1459 /* now iterate over everything, in case we missed something */ 1800 /* now iterate over everything, in case we missed something */
1460 pipecb (EV_A_ &pipeev, EV_READ); 1801 pipecb (EV_A_ &pipe_w, EV_READ);
1802#endif
1461 } 1803 }
1462 1804
1463 postfork = 0; 1805 postfork = 0;
1464} 1806}
1465 1807
1466#if EV_MULTIPLICITY 1808#if EV_MULTIPLICITY
1809
1467struct ev_loop * 1810struct ev_loop *
1468ev_loop_new (unsigned int flags) 1811ev_loop_new (unsigned int flags)
1469{ 1812{
1470 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));
1471 1814
1472 memset (loop, 0, sizeof (struct ev_loop)); 1815 memset (EV_A, 0, sizeof (struct ev_loop));
1473
1474 loop_init (EV_A_ flags); 1816 loop_init (EV_A_ flags);
1475 1817
1476 if (ev_backend (EV_A)) 1818 if (ev_backend (EV_A))
1477 return loop; 1819 return EV_A;
1478 1820
1479 return 0; 1821 return 0;
1480} 1822}
1481 1823
1482void 1824void
… …
1488 1830
1489void 1831void
1490ev_loop_fork (EV_P) 1832ev_loop_fork (EV_P)
1491{ 1833{
1492 postfork = 1; /* must be in line with ev_default_fork */ 1834 postfork = 1; /* must be in line with ev_default_fork */
1835}
1836#endif /* multiplicity */
1837
1838#if EV_VERIFY
1839static void noinline
1840verify_watcher (EV_P_ W w)
1841{
1842 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1843
1844 if (w->pending)
1845 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1846}
1847
1848static void noinline
1849verify_heap (EV_P_ ANHE *heap, int N)
1850{
1851 int i;
1852
1853 for (i = HEAP0; i < N + HEAP0; ++i)
1854 {
1855 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1856 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1857 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1858
1859 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1860 }
1861}
1862
1863static void noinline
1864array_verify (EV_P_ W *ws, int cnt)
1865{
1866 while (cnt--)
1867 {
1868 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1869 verify_watcher (EV_A_ ws [cnt]);
1870 }
1871}
1872#endif
1873
1874#if EV_FEATURE_API
1875void
1876ev_verify (EV_P)
1877{
1878#if EV_VERIFY
1879 int i;
1880 WL w;
1881
1882 assert (activecnt >= -1);
1883
1884 assert (fdchangemax >= fdchangecnt);
1885 for (i = 0; i < fdchangecnt; ++i)
1886 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1887
1888 assert (anfdmax >= 0);
1889 for (i = 0; i < anfdmax; ++i)
1890 for (w = anfds [i].head; w; w = w->next)
1891 {
1892 verify_watcher (EV_A_ (W)w);
1893 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1894 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1895 }
1896
1897 assert (timermax >= timercnt);
1898 verify_heap (EV_A_ timers, timercnt);
1899
1900#if EV_PERIODIC_ENABLE
1901 assert (periodicmax >= periodiccnt);
1902 verify_heap (EV_A_ periodics, periodiccnt);
1903#endif
1904
1905 for (i = NUMPRI; i--; )
1906 {
1907 assert (pendingmax [i] >= pendingcnt [i]);
1908#if EV_IDLE_ENABLE
1909 assert (idleall >= 0);
1910 assert (idlemax [i] >= idlecnt [i]);
1911 array_verify (EV_A_ (W *)idles [i], idlecnt [i]);
1912#endif
1913 }
1914
1915#if EV_FORK_ENABLE
1916 assert (forkmax >= forkcnt);
1917 array_verify (EV_A_ (W *)forks, forkcnt);
1918#endif
1919
1920#if EV_ASYNC_ENABLE
1921 assert (asyncmax >= asynccnt);
1922 array_verify (EV_A_ (W *)asyncs, asynccnt);
1923#endif
1924
1925#if EV_PREPARE_ENABLE
1926 assert (preparemax >= preparecnt);
1927 array_verify (EV_A_ (W *)prepares, preparecnt);
1928#endif
1929
1930#if EV_CHECK_ENABLE
1931 assert (checkmax >= checkcnt);
1932 array_verify (EV_A_ (W *)checks, checkcnt);
1933#endif
1934
1935# if 0
1936#if EV_CHILD_ENABLE
1937 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1938 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1939#endif
1940# endif
1941#endif
1493} 1942}
1494#endif 1943#endif
1495 1944
1496#if EV_MULTIPLICITY 1945#if EV_MULTIPLICITY
1497struct ev_loop * 1946struct ev_loop *
… …
1502#endif 1951#endif
1503{ 1952{
1504 if (!ev_default_loop_ptr) 1953 if (!ev_default_loop_ptr)
1505 { 1954 {
1506#if EV_MULTIPLICITY 1955#if EV_MULTIPLICITY
1507 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1956 EV_P = ev_default_loop_ptr = &default_loop_struct;
1508#else 1957#else
1509 ev_default_loop_ptr = 1; 1958 ev_default_loop_ptr = 1;
1510#endif 1959#endif
1511 1960
1512 loop_init (EV_A_ flags); 1961 loop_init (EV_A_ flags);
1513 1962
1514 if (ev_backend (EV_A)) 1963 if (ev_backend (EV_A))
1515 { 1964 {
1516#ifndef _WIN32 1965#if EV_CHILD_ENABLE
1517 ev_signal_init (&childev, childcb, SIGCHLD); 1966 ev_signal_init (&childev, childcb, SIGCHLD);
1518 ev_set_priority (&childev, EV_MAXPRI); 1967 ev_set_priority (&childev, EV_MAXPRI);
1519 ev_signal_start (EV_A_ &childev); 1968 ev_signal_start (EV_A_ &childev);
1520 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1969 ev_unref (EV_A); /* child watcher should not keep loop alive */
1521#endif 1970#endif
… …
1529 1978
1530void 1979void
1531ev_default_destroy (void) 1980ev_default_destroy (void)
1532{ 1981{
1533#if EV_MULTIPLICITY 1982#if EV_MULTIPLICITY
1534 struct ev_loop *loop = ev_default_loop_ptr; 1983 EV_P = ev_default_loop_ptr;
1535#endif 1984#endif
1536 1985
1537#ifndef _WIN32 1986 ev_default_loop_ptr = 0;
1987
1988#if EV_CHILD_ENABLE
1538 ev_ref (EV_A); /* child watcher */ 1989 ev_ref (EV_A); /* child watcher */
1539 ev_signal_stop (EV_A_ &childev); 1990 ev_signal_stop (EV_A_ &childev);
1540#endif 1991#endif
1541 1992
1542 loop_destroy (EV_A); 1993 loop_destroy (EV_A);
… …
1544 1995
1545void 1996void
1546ev_default_fork (void) 1997ev_default_fork (void)
1547{ 1998{
1548#if EV_MULTIPLICITY 1999#if EV_MULTIPLICITY
1549 struct ev_loop *loop = ev_default_loop_ptr; 2000 EV_P = ev_default_loop_ptr;
1550#endif 2001#endif
1551 2002
1552 if (backend)
1553 postfork = 1; /* must be in line with ev_loop_fork */ 2003 postfork = 1; /* must be in line with ev_loop_fork */
1554} 2004}
1555 2005
1556/*****************************************************************************/ 2006/*****************************************************************************/
1557 2007
1558void 2008void
1559ev_invoke (EV_P_ void *w, int revents) 2009ev_invoke (EV_P_ void *w, int revents)
1560{ 2010{
1561 EV_CB_INVOKE ((W)w, revents); 2011 EV_CB_INVOKE ((W)w, revents);
1562} 2012}
1563 2013
1564void inline_speed 2014unsigned int
1565call_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)
1566{ 2028{
1567 int pri; 2029 int pri;
1568 2030
1569 for (pri = NUMPRI; pri--; ) 2031 for (pri = NUMPRI; pri--; )
1570 while (pendingcnt [pri]) 2032 while (pendingcnt [pri])
1571 { 2033 {
1572 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2034 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1573 2035
1574 if (expect_true (p->w))
1575 {
1576 /*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 */
1577 2038
1578 p->w->pending = 0; 2039 p->w->pending = 0;
1579 EV_CB_INVOKE (p->w, p->events); 2040 EV_CB_INVOKE (p->w, p->events);
1580 } 2041 EV_FREQUENT_CHECK;
1581 } 2042 }
1582} 2043}
1583 2044
1584#if EV_IDLE_ENABLE 2045#if EV_IDLE_ENABLE
1585void inline_size 2046/* make idle watchers pending. this handles the "call-idle */
2047/* only when higher priorities are idle" logic */
2048inline_size void
1586idle_reify (EV_P) 2049idle_reify (EV_P)
1587{ 2050{
1588 if (expect_false (idleall)) 2051 if (expect_false (idleall))
1589 { 2052 {
1590 int pri; 2053 int pri;
… …
1602 } 2065 }
1603 } 2066 }
1604} 2067}
1605#endif 2068#endif
1606 2069
1607void inline_size 2070/* make timers pending */
2071inline_size void
1608timers_reify (EV_P) 2072timers_reify (EV_P)
1609{ 2073{
2074 EV_FREQUENT_CHECK;
2075
1610 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) 2076 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1611 { 2077 {
1612 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); 2078 do
1613
1614 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1615
1616 /* first reschedule or stop timer */
1617 if (w->repeat)
1618 { 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 {
1619 ev_at (w) += w->repeat; 2087 ev_at (w) += w->repeat;
1620 if (ev_at (w) < mn_now) 2088 if (ev_at (w) < mn_now)
1621 ev_at (w) = mn_now; 2089 ev_at (w) = mn_now;
1622 2090
1623 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.));
1624 2092
1625 ANHE_at_set (timers [HEAP0]); 2093 ANHE_at_cache (timers [HEAP0]);
1626 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);
1627 } 2101 }
1628 else 2102 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1629 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1630 2103
1631 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 2104 feed_reverse_done (EV_A_ EV_TIMER);
1632 } 2105 }
1633} 2106}
1634 2107
1635#if EV_PERIODIC_ENABLE 2108#if EV_PERIODIC_ENABLE
1636void inline_size 2109/* make periodics pending */
2110inline_size void
1637periodics_reify (EV_P) 2111periodics_reify (EV_P)
1638{ 2112{
2113 EV_FREQUENT_CHECK;
2114
1639 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2115 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1640 { 2116 {
1641 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2117 int feed_count = 0;
1642 2118
1643 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 2119 do
1644
1645 /* first reschedule or stop timer */
1646 if (w->reschedule_cb)
1647 { 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 {
1648 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2128 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1649 2129
1650 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));
1651 2131
1652 ANHE_at_set (periodics [HEAP0]); 2132 ANHE_at_cache (periodics [HEAP0]);
1653 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);
1654 } 2159 }
1655 else if (w->interval) 2160 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1656 {
1657 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1658 /* if next trigger time is not sufficiently in the future, put it there */
1659 /* this might happen because of floating point inexactness */
1660 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1661 {
1662 ev_at (w) += w->interval;
1663 2161
1664 /* if interval is unreasonably low we might still have a time in the past */
1665 /* so correct this. this will make the periodic very inexact, but the user */
1666 /* has effectively asked to get triggered more often than possible */
1667 if (ev_at (w) < ev_rt_now)
1668 ev_at (w) = ev_rt_now;
1669 }
1670
1671 ANHE_at_set (periodics [HEAP0]);
1672 downheap (periodics, periodiccnt, HEAP0);
1673 }
1674 else
1675 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1676
1677 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 2162 feed_reverse_done (EV_A_ EV_PERIODIC);
1678 } 2163 }
1679} 2164}
1680 2165
2166/* simply recalculate all periodics */
2167/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1681static void noinline 2168static void noinline
1682periodics_reschedule (EV_P) 2169periodics_reschedule (EV_P)
1683{ 2170{
1684 int i; 2171 int i;
1685 2172
… …
1691 if (w->reschedule_cb) 2178 if (w->reschedule_cb)
1692 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2179 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1693 else if (w->interval) 2180 else if (w->interval)
1694 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2181 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1695 2182
1696 ANHE_at_set (periodics [i]); 2183 ANHE_at_cache (periodics [i]);
1697 } 2184 }
1698 2185
1699 /* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */ 2186 reheap (periodics, periodiccnt);
1700 /* also, this is easy and corretc for both 2-heaps and 4-heaps */ 2187}
2188#endif
2189
2190/* adjust all timers by a given offset */
2191static void noinline
2192timers_reschedule (EV_P_ ev_tstamp adjust)
2193{
2194 int i;
2195
1701 for (i = 0; i < periodiccnt; ++i) 2196 for (i = 0; i < timercnt; ++i)
1702 upheap (periodics, i + HEAP0); 2197 {
2198 ANHE *he = timers + i + HEAP0;
2199 ANHE_w (*he)->at += adjust;
2200 ANHE_at_cache (*he);
2201 }
1703} 2202}
1704#endif
1705 2203
1706void inline_speed 2204/* fetch new monotonic and realtime times from the kernel */
2205/* also detect if there was a timejump, and act accordingly */
2206inline_speed void
1707time_update (EV_P_ ev_tstamp max_block) 2207time_update (EV_P_ ev_tstamp max_block)
1708{ 2208{
1709 int i;
1710
1711#if EV_USE_MONOTONIC 2209#if EV_USE_MONOTONIC
1712 if (expect_true (have_monotonic)) 2210 if (expect_true (have_monotonic))
1713 { 2211 {
2212 int i;
1714 ev_tstamp odiff = rtmn_diff; 2213 ev_tstamp odiff = rtmn_diff;
1715 2214
1716 mn_now = get_clock (); 2215 mn_now = get_clock ();
1717 2216
1718 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2217 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1744 ev_rt_now = ev_time (); 2243 ev_rt_now = ev_time ();
1745 mn_now = get_clock (); 2244 mn_now = get_clock ();
1746 now_floor = mn_now; 2245 now_floor = mn_now;
1747 } 2246 }
1748 2247
2248 /* no timer adjustment, as the monotonic clock doesn't jump */
2249 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1749# if EV_PERIODIC_ENABLE 2250# if EV_PERIODIC_ENABLE
1750 periodics_reschedule (EV_A); 2251 periodics_reschedule (EV_A);
1751# endif 2252# endif
1752 /* no timer adjustment, as the monotonic clock doesn't jump */
1753 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1754 } 2253 }
1755 else 2254 else
1756#endif 2255#endif
1757 { 2256 {
1758 ev_rt_now = ev_time (); 2257 ev_rt_now = ev_time ();
1759 2258
1760 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))
1761 { 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);
1762#if EV_PERIODIC_ENABLE 2263#if EV_PERIODIC_ENABLE
1763 periodics_reschedule (EV_A); 2264 periodics_reschedule (EV_A);
1764#endif 2265#endif
1765 /* adjust timers. this is easy, as the offset is the same for all of them */
1766 for (i = 0; i < timercnt; ++i)
1767 {
1768 ANHE *he = timers + i + HEAP0;
1769 ANHE_w (*he)->at += ev_rt_now - mn_now;
1770 ANHE_at_set (*he);
1771 }
1772 } 2266 }
1773 2267
1774 mn_now = ev_rt_now; 2268 mn_now = ev_rt_now;
1775 } 2269 }
1776} 2270}
1777 2271
1778void 2272void
1779ev_ref (EV_P)
1780{
1781 ++activecnt;
1782}
1783
1784void
1785ev_unref (EV_P)
1786{
1787 --activecnt;
1788}
1789
1790static int loop_done;
1791
1792void
1793ev_loop (EV_P_ int flags) 2273ev_loop (EV_P_ int flags)
1794{ 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
1795 loop_done = EVUNLOOP_CANCEL; 2281 loop_done = EVUNLOOP_CANCEL;
1796 2282
1797 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 */
1798 2284
1799 do 2285 do
1800 { 2286 {
2287#if EV_VERIFY >= 2
2288 ev_verify (EV_A);
2289#endif
2290
1801#ifndef _WIN32 2291#ifndef _WIN32
1802 if (expect_false (curpid)) /* penalise the forking check even more */ 2292 if (expect_false (curpid)) /* penalise the forking check even more */
1803 if (expect_false (getpid () != curpid)) 2293 if (expect_false (getpid () != curpid))
1804 { 2294 {
1805 curpid = getpid (); 2295 curpid = getpid ();
… …
1811 /* we might have forked, so queue fork handlers */ 2301 /* we might have forked, so queue fork handlers */
1812 if (expect_false (postfork)) 2302 if (expect_false (postfork))
1813 if (forkcnt) 2303 if (forkcnt)
1814 { 2304 {
1815 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2305 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1816 call_pending (EV_A); 2306 EV_INVOKE_PENDING;
1817 } 2307 }
1818#endif 2308#endif
1819 2309
2310#if EV_PREPARE_ENABLE
1820 /* queue prepare watchers (and execute them) */ 2311 /* queue prepare watchers (and execute them) */
1821 if (expect_false (preparecnt)) 2312 if (expect_false (preparecnt))
1822 { 2313 {
1823 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2314 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1824 call_pending (EV_A); 2315 EV_INVOKE_PENDING;
1825 } 2316 }
2317#endif
1826 2318
1827 if (expect_false (!activecnt)) 2319 if (expect_false (loop_done))
1828 break; 2320 break;
1829 2321
1830 /* we might have forked, so reify kernel state if necessary */ 2322 /* we might have forked, so reify kernel state if necessary */
1831 if (expect_false (postfork)) 2323 if (expect_false (postfork))
1832 loop_fork (EV_A); 2324 loop_fork (EV_A);
… …
1839 ev_tstamp waittime = 0.; 2331 ev_tstamp waittime = 0.;
1840 ev_tstamp sleeptime = 0.; 2332 ev_tstamp sleeptime = 0.;
1841 2333
1842 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2334 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1843 { 2335 {
2336 /* remember old timestamp for io_blocktime calculation */
2337 ev_tstamp prev_mn_now = mn_now;
2338
1844 /* update time to cancel out callback processing overhead */ 2339 /* update time to cancel out callback processing overhead */
1845 time_update (EV_A_ 1e100); 2340 time_update (EV_A_ 1e100);
1846 2341
1847 waittime = MAX_BLOCKTIME; 2342 waittime = MAX_BLOCKTIME;
1848 2343
… …
1858 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;
1859 if (waittime > to) waittime = to; 2354 if (waittime > to) waittime = to;
1860 } 2355 }
1861#endif 2356#endif
1862 2357
2358 /* don't let timeouts decrease the waittime below timeout_blocktime */
1863 if (expect_false (waittime < timeout_blocktime)) 2359 if (expect_false (waittime < timeout_blocktime))
1864 waittime = timeout_blocktime; 2360 waittime = timeout_blocktime;
1865 2361
1866 sleeptime = waittime - backend_fudge; 2362 /* extra check because io_blocktime is commonly 0 */
1867
1868 if (expect_true (sleeptime > io_blocktime)) 2363 if (expect_false (io_blocktime))
1869 sleeptime = io_blocktime;
1870
1871 if (sleeptime)
1872 { 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 {
1873 ev_sleep (sleeptime); 2372 ev_sleep (sleeptime);
1874 waittime -= sleeptime; 2373 waittime -= sleeptime;
2374 }
1875 } 2375 }
1876 } 2376 }
1877 2377
2378#if EV_FEATURE_API
1878 ++loop_count; 2379 ++loop_count;
2380#endif
2381 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
1879 backend_poll (EV_A_ waittime); 2382 backend_poll (EV_A_ waittime);
2383 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
1880 2384
1881 /* update ev_rt_now, do magic */ 2385 /* update ev_rt_now, do magic */
1882 time_update (EV_A_ waittime + sleeptime); 2386 time_update (EV_A_ waittime + sleeptime);
1883 } 2387 }
1884 2388
… …
1891#if EV_IDLE_ENABLE 2395#if EV_IDLE_ENABLE
1892 /* queue idle watchers unless other events are pending */ 2396 /* queue idle watchers unless other events are pending */
1893 idle_reify (EV_A); 2397 idle_reify (EV_A);
1894#endif 2398#endif
1895 2399
2400#if EV_CHECK_ENABLE
1896 /* queue check watchers, to be executed first */ 2401 /* queue check watchers, to be executed first */
1897 if (expect_false (checkcnt)) 2402 if (expect_false (checkcnt))
1898 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2403 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2404#endif
1899 2405
1900 call_pending (EV_A); 2406 EV_INVOKE_PENDING;
1901 } 2407 }
1902 while (expect_true ( 2408 while (expect_true (
1903 activecnt 2409 activecnt
1904 && !loop_done 2410 && !loop_done
1905 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2411 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
1906 )); 2412 ));
1907 2413
1908 if (loop_done == EVUNLOOP_ONE) 2414 if (loop_done == EVUNLOOP_ONE)
1909 loop_done = EVUNLOOP_CANCEL; 2415 loop_done = EVUNLOOP_CANCEL;
2416
2417#if EV_FEATURE_API
2418 --loop_depth;
2419#endif
1910} 2420}
1911 2421
1912void 2422void
1913ev_unloop (EV_P_ int how) 2423ev_unloop (EV_P_ int how)
1914{ 2424{
1915 loop_done = how; 2425 loop_done = how;
1916} 2426}
1917 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
1918/*****************************************************************************/ 2465/*****************************************************************************/
2466/* singly-linked list management, used when the expected list length is short */
1919 2467
1920void inline_size 2468inline_size void
1921wlist_add (WL *head, WL elem) 2469wlist_add (WL *head, WL elem)
1922{ 2470{
1923 elem->next = *head; 2471 elem->next = *head;
1924 *head = elem; 2472 *head = elem;
1925} 2473}
1926 2474
1927void inline_size 2475inline_size void
1928wlist_del (WL *head, WL elem) 2476wlist_del (WL *head, WL elem)
1929{ 2477{
1930 while (*head) 2478 while (*head)
1931 { 2479 {
1932 if (*head == elem) 2480 if (expect_true (*head == elem))
1933 { 2481 {
1934 *head = elem->next; 2482 *head = elem->next;
1935 return; 2483 break;
1936 } 2484 }
1937 2485
1938 head = &(*head)->next; 2486 head = &(*head)->next;
1939 } 2487 }
1940} 2488}
1941 2489
1942void inline_speed 2490/* internal, faster, version of ev_clear_pending */
2491inline_speed void
1943clear_pending (EV_P_ W w) 2492clear_pending (EV_P_ W w)
1944{ 2493{
1945 if (w->pending) 2494 if (w->pending)
1946 { 2495 {
1947 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2496 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
1948 w->pending = 0; 2497 w->pending = 0;
1949 } 2498 }
1950} 2499}
1951 2500
1952int 2501int
… …
1956 int pending = w_->pending; 2505 int pending = w_->pending;
1957 2506
1958 if (expect_true (pending)) 2507 if (expect_true (pending))
1959 { 2508 {
1960 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2509 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2510 p->w = (W)&pending_w;
1961 w_->pending = 0; 2511 w_->pending = 0;
1962 p->w = 0;
1963 return p->events; 2512 return p->events;
1964 } 2513 }
1965 else 2514 else
1966 return 0; 2515 return 0;
1967} 2516}
1968 2517
1969void inline_size 2518inline_size void
1970pri_adjust (EV_P_ W w) 2519pri_adjust (EV_P_ W w)
1971{ 2520{
1972 int pri = w->priority; 2521 int pri = ev_priority (w);
1973 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2522 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1974 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2523 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1975 w->priority = pri; 2524 ev_set_priority (w, pri);
1976} 2525}
1977 2526
1978void inline_speed 2527inline_speed void
1979ev_start (EV_P_ W w, int active) 2528ev_start (EV_P_ W w, int active)
1980{ 2529{
1981 pri_adjust (EV_A_ w); 2530 pri_adjust (EV_A_ w);
1982 w->active = active; 2531 w->active = active;
1983 ev_ref (EV_A); 2532 ev_ref (EV_A);
1984} 2533}
1985 2534
1986void inline_size 2535inline_size void
1987ev_stop (EV_P_ W w) 2536ev_stop (EV_P_ W w)
1988{ 2537{
1989 ev_unref (EV_A); 2538 ev_unref (EV_A);
1990 w->active = 0; 2539 w->active = 0;
1991} 2540}
… …
1998 int fd = w->fd; 2547 int fd = w->fd;
1999 2548
2000 if (expect_false (ev_is_active (w))) 2549 if (expect_false (ev_is_active (w)))
2001 return; 2550 return;
2002 2551
2003 assert (("ev_io_start called with negative fd", fd >= 0)); 2552 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2553 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2554
2555 EV_FREQUENT_CHECK;
2004 2556
2005 ev_start (EV_A_ (W)w, 1); 2557 ev_start (EV_A_ (W)w, 1);
2006 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2558 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2007 wlist_add (&anfds[fd].head, (WL)w); 2559 wlist_add (&anfds[fd].head, (WL)w);
2008 2560
2009 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2561 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2010 w->events &= ~EV_IOFDSET; 2562 w->events &= ~EV__IOFDSET;
2563
2564 EV_FREQUENT_CHECK;
2011} 2565}
2012 2566
2013void noinline 2567void noinline
2014ev_io_stop (EV_P_ ev_io *w) 2568ev_io_stop (EV_P_ ev_io *w)
2015{ 2569{
2016 clear_pending (EV_A_ (W)w); 2570 clear_pending (EV_A_ (W)w);
2017 if (expect_false (!ev_is_active (w))) 2571 if (expect_false (!ev_is_active (w)))
2018 return; 2572 return;
2019 2573
2020 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));
2575
2576 EV_FREQUENT_CHECK;
2021 2577
2022 wlist_del (&anfds[w->fd].head, (WL)w); 2578 wlist_del (&anfds[w->fd].head, (WL)w);
2023 ev_stop (EV_A_ (W)w); 2579 ev_stop (EV_A_ (W)w);
2024 2580
2025 fd_change (EV_A_ w->fd, 1); 2581 fd_change (EV_A_ w->fd, 1);
2582
2583 EV_FREQUENT_CHECK;
2026} 2584}
2027 2585
2028void noinline 2586void noinline
2029ev_timer_start (EV_P_ ev_timer *w) 2587ev_timer_start (EV_P_ ev_timer *w)
2030{ 2588{
2031 if (expect_false (ev_is_active (w))) 2589 if (expect_false (ev_is_active (w)))
2032 return; 2590 return;
2033 2591
2034 ev_at (w) += mn_now; 2592 ev_at (w) += mn_now;
2035 2593
2036 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.));
2037 2595
2596 EV_FREQUENT_CHECK;
2597
2598 ++timercnt;
2038 ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); 2599 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
2039 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 2600 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2);
2040 ANHE_w (timers [ev_active (w)]) = (WT)w; 2601 ANHE_w (timers [ev_active (w)]) = (WT)w;
2041 ANHE_at_set (timers [ev_active (w)]); 2602 ANHE_at_cache (timers [ev_active (w)]);
2042 upheap (timers, ev_active (w)); 2603 upheap (timers, ev_active (w));
2043 2604
2605 EV_FREQUENT_CHECK;
2606
2044 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 2607 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2045} 2608}
2046 2609
2047void noinline 2610void noinline
2048ev_timer_stop (EV_P_ ev_timer *w) 2611ev_timer_stop (EV_P_ ev_timer *w)
2049{ 2612{
2050 clear_pending (EV_A_ (W)w); 2613 clear_pending (EV_A_ (W)w);
2051 if (expect_false (!ev_is_active (w))) 2614 if (expect_false (!ev_is_active (w)))
2052 return; 2615 return;
2053 2616
2617 EV_FREQUENT_CHECK;
2618
2054 { 2619 {
2055 int active = ev_active (w); 2620 int active = ev_active (w);
2056 2621
2057 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 2622 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2058 2623
2624 --timercnt;
2625
2059 if (expect_true (active < timercnt + HEAP0 - 1)) 2626 if (expect_true (active < timercnt + HEAP0))
2060 { 2627 {
2061 timers [active] = timers [timercnt + HEAP0 - 1]; 2628 timers [active] = timers [timercnt + HEAP0];
2062 adjustheap (timers, timercnt, active); 2629 adjustheap (timers, timercnt, active);
2063 } 2630 }
2064
2065 --timercnt;
2066 } 2631 }
2067 2632
2068 ev_at (w) -= mn_now; 2633 ev_at (w) -= mn_now;
2069 2634
2070 ev_stop (EV_A_ (W)w); 2635 ev_stop (EV_A_ (W)w);
2636
2637 EV_FREQUENT_CHECK;
2071} 2638}
2072 2639
2073void noinline 2640void noinline
2074ev_timer_again (EV_P_ ev_timer *w) 2641ev_timer_again (EV_P_ ev_timer *w)
2075{ 2642{
2643 EV_FREQUENT_CHECK;
2644
2076 if (ev_is_active (w)) 2645 if (ev_is_active (w))
2077 { 2646 {
2078 if (w->repeat) 2647 if (w->repeat)
2079 { 2648 {
2080 ev_at (w) = mn_now + w->repeat; 2649 ev_at (w) = mn_now + w->repeat;
2081 ANHE_at_set (timers [ev_active (w)]); 2650 ANHE_at_cache (timers [ev_active (w)]);
2082 adjustheap (timers, timercnt, ev_active (w)); 2651 adjustheap (timers, timercnt, ev_active (w));
2083 } 2652 }
2084 else 2653 else
2085 ev_timer_stop (EV_A_ w); 2654 ev_timer_stop (EV_A_ w);
2086 } 2655 }
2087 else if (w->repeat) 2656 else if (w->repeat)
2088 { 2657 {
2089 ev_at (w) = w->repeat; 2658 ev_at (w) = w->repeat;
2090 ev_timer_start (EV_A_ w); 2659 ev_timer_start (EV_A_ w);
2091 } 2660 }
2661
2662 EV_FREQUENT_CHECK;
2663}
2664
2665ev_tstamp
2666ev_timer_remaining (EV_P_ ev_timer *w)
2667{
2668 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2092} 2669}
2093 2670
2094#if EV_PERIODIC_ENABLE 2671#if EV_PERIODIC_ENABLE
2095void noinline 2672void noinline
2096ev_periodic_start (EV_P_ ev_periodic *w) 2673ev_periodic_start (EV_P_ ev_periodic *w)
… …
2100 2677
2101 if (w->reschedule_cb) 2678 if (w->reschedule_cb)
2102 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2679 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2103 else if (w->interval) 2680 else if (w->interval)
2104 { 2681 {
2105 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.));
2106 /* 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 */
2107 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;
2108 } 2685 }
2109 else 2686 else
2110 ev_at (w) = w->offset; 2687 ev_at (w) = w->offset;
2111 2688
2689 EV_FREQUENT_CHECK;
2690
2691 ++periodiccnt;
2112 ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); 2692 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
2113 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 2693 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2);
2114 ANHE_w (periodics [ev_active (w)]) = (WT)w; 2694 ANHE_w (periodics [ev_active (w)]) = (WT)w;
2115 ANHE_at_set (periodics [ev_active (w)]); 2695 ANHE_at_cache (periodics [ev_active (w)]);
2116 upheap (periodics, ev_active (w)); 2696 upheap (periodics, ev_active (w));
2117 2697
2698 EV_FREQUENT_CHECK;
2699
2118 /*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));*/
2119} 2701}
2120 2702
2121void noinline 2703void noinline
2122ev_periodic_stop (EV_P_ ev_periodic *w) 2704ev_periodic_stop (EV_P_ ev_periodic *w)
2123{ 2705{
2124 clear_pending (EV_A_ (W)w); 2706 clear_pending (EV_A_ (W)w);
2125 if (expect_false (!ev_is_active (w))) 2707 if (expect_false (!ev_is_active (w)))
2126 return; 2708 return;
2127 2709
2710 EV_FREQUENT_CHECK;
2711
2128 { 2712 {
2129 int active = ev_active (w); 2713 int active = ev_active (w);
2130 2714
2131 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 2715 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2132 2716
2717 --periodiccnt;
2718
2133 if (expect_true (active < periodiccnt + HEAP0 - 1)) 2719 if (expect_true (active < periodiccnt + HEAP0))
2134 { 2720 {
2135 periodics [active] = periodics [periodiccnt + HEAP0 - 1]; 2721 periodics [active] = periodics [periodiccnt + HEAP0];
2136 adjustheap (periodics, periodiccnt, active); 2722 adjustheap (periodics, periodiccnt, active);
2137 } 2723 }
2138
2139 --periodiccnt;
2140 } 2724 }
2141 2725
2142 ev_stop (EV_A_ (W)w); 2726 ev_stop (EV_A_ (W)w);
2727
2728 EV_FREQUENT_CHECK;
2143} 2729}
2144 2730
2145void noinline 2731void noinline
2146ev_periodic_again (EV_P_ ev_periodic *w) 2732ev_periodic_again (EV_P_ ev_periodic *w)
2147{ 2733{
… …
2153 2739
2154#ifndef SA_RESTART 2740#ifndef SA_RESTART
2155# define SA_RESTART 0 2741# define SA_RESTART 0
2156#endif 2742#endif
2157 2743
2744#if EV_SIGNAL_ENABLE
2745
2158void noinline 2746void noinline
2159ev_signal_start (EV_P_ ev_signal *w) 2747ev_signal_start (EV_P_ ev_signal *w)
2160{ 2748{
2161#if EV_MULTIPLICITY
2162 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2163#endif
2164 if (expect_false (ev_is_active (w))) 2749 if (expect_false (ev_is_active (w)))
2165 return; 2750 return;
2166 2751
2167 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));
2168 2753
2169 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));
2170 2757
2758 signals [w->signum - 1].loop = EV_A;
2759#endif
2760
2761 EV_FREQUENT_CHECK;
2762
2763#if EV_USE_SIGNALFD
2764 if (sigfd == -2)
2171 { 2765 {
2172#ifndef _WIN32 2766 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2173 sigset_t full, prev; 2767 if (sigfd < 0 && errno == EINVAL)
2174 sigfillset (&full); 2768 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2175 sigprocmask (SIG_SETMASK, &full, &prev);
2176#endif
2177 2769
2178 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2770 if (sigfd >= 0)
2771 {
2772 fd_intern (sigfd); /* doing it twice will not hurt */
2179 2773
2180#ifndef _WIN32 2774 sigemptyset (&sigfd_set);
2181 sigprocmask (SIG_SETMASK, &prev, 0); 2775
2182#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 }
2183 } 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
2184 2792
2185 ev_start (EV_A_ (W)w, 1); 2793 ev_start (EV_A_ (W)w, 1);
2186 wlist_add (&signals [w->signum - 1].head, (WL)w); 2794 wlist_add (&signals [w->signum - 1].head, (WL)w);
2187 2795
2188 if (!((WL)w)->next) 2796 if (!((WL)w)->next)
2797# if EV_USE_SIGNALFD
2798 if (sigfd < 0) /*TODO*/
2799# endif
2189 { 2800 {
2190#if _WIN32 2801# ifdef _WIN32
2802 evpipe_init (EV_A);
2803
2191 signal (w->signum, ev_sighandler); 2804 signal (w->signum, ev_sighandler);
2192#else 2805# else
2193 struct sigaction sa; 2806 struct sigaction sa;
2807
2808 evpipe_init (EV_A);
2809
2194 sa.sa_handler = ev_sighandler; 2810 sa.sa_handler = ev_sighandler;
2195 sigfillset (&sa.sa_mask); 2811 sigfillset (&sa.sa_mask);
2196 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 */
2197 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);
2198#endif 2818#endif
2199 } 2819 }
2820
2821 EV_FREQUENT_CHECK;
2200} 2822}
2201 2823
2202void noinline 2824void noinline
2203ev_signal_stop (EV_P_ ev_signal *w) 2825ev_signal_stop (EV_P_ ev_signal *w)
2204{ 2826{
2205 clear_pending (EV_A_ (W)w); 2827 clear_pending (EV_A_ (W)w);
2206 if (expect_false (!ev_is_active (w))) 2828 if (expect_false (!ev_is_active (w)))
2207 return; 2829 return;
2208 2830
2831 EV_FREQUENT_CHECK;
2832
2209 wlist_del (&signals [w->signum - 1].head, (WL)w); 2833 wlist_del (&signals [w->signum - 1].head, (WL)w);
2210 ev_stop (EV_A_ (W)w); 2834 ev_stop (EV_A_ (W)w);
2211 2835
2212 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
2213 signal (w->signum, SIG_DFL); 2855 signal (w->signum, SIG_DFL);
2856 }
2857
2858 EV_FREQUENT_CHECK;
2214} 2859}
2860
2861#endif
2862
2863#if EV_CHILD_ENABLE
2215 2864
2216void 2865void
2217ev_child_start (EV_P_ ev_child *w) 2866ev_child_start (EV_P_ ev_child *w)
2218{ 2867{
2219#if EV_MULTIPLICITY 2868#if EV_MULTIPLICITY
2220 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));
2221#endif 2870#endif
2222 if (expect_false (ev_is_active (w))) 2871 if (expect_false (ev_is_active (w)))
2223 return; 2872 return;
2224 2873
2874 EV_FREQUENT_CHECK;
2875
2225 ev_start (EV_A_ (W)w, 1); 2876 ev_start (EV_A_ (W)w, 1);
2226 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2877 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2878
2879 EV_FREQUENT_CHECK;
2227} 2880}
2228 2881
2229void 2882void
2230ev_child_stop (EV_P_ ev_child *w) 2883ev_child_stop (EV_P_ ev_child *w)
2231{ 2884{
2232 clear_pending (EV_A_ (W)w); 2885 clear_pending (EV_A_ (W)w);
2233 if (expect_false (!ev_is_active (w))) 2886 if (expect_false (!ev_is_active (w)))
2234 return; 2887 return;
2235 2888
2889 EV_FREQUENT_CHECK;
2890
2236 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2891 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2237 ev_stop (EV_A_ (W)w); 2892 ev_stop (EV_A_ (W)w);
2893
2894 EV_FREQUENT_CHECK;
2238} 2895}
2896
2897#endif
2239 2898
2240#if EV_STAT_ENABLE 2899#if EV_STAT_ENABLE
2241 2900
2242# ifdef _WIN32 2901# ifdef _WIN32
2243# undef lstat 2902# undef lstat
2244# define lstat(a,b) _stati64 (a,b) 2903# define lstat(a,b) _stati64 (a,b)
2245# endif 2904# endif
2246 2905
2247#define DEF_STAT_INTERVAL 5.0074891 2906#define DEF_STAT_INTERVAL 5.0074891
2907#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2248#define MIN_STAT_INTERVAL 0.1074891 2908#define MIN_STAT_INTERVAL 0.1074891
2249 2909
2250static 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);
2251 2911
2252#if EV_USE_INOTIFY 2912#if EV_USE_INOTIFY
2253# 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)
2254 2916
2255static void noinline 2917static void noinline
2256infy_add (EV_P_ ev_stat *w) 2918infy_add (EV_P_ ev_stat *w)
2257{ 2919{
2258 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);
2259 2921
2260 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 */
2261 { 2942 }
2262 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2943 else
2944 {
2945 /* can't use inotify, continue to stat */
2946 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2263 2947
2264 /* monitor some parent directory for speedup hints */ 2948 /* if path is not there, monitor some parent directory for speedup hints */
2265 /* note that exceeding the hardcoded limit is not a correctness issue, */ 2949 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2266 /* but an efficiency issue only */ 2950 /* but an efficiency issue only */
2267 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2951 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2268 { 2952 {
2269 char path [4096]; 2953 char path [4096];
2270 strcpy (path, w->path); 2954 strcpy (path, w->path);
… …
2274 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2958 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2275 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2959 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2276 2960
2277 char *pend = strrchr (path, '/'); 2961 char *pend = strrchr (path, '/');
2278 2962
2279 if (!pend) 2963 if (!pend || pend == path)
2280 break; /* whoops, no '/', complain to your admin */ 2964 break;
2281 2965
2282 *pend = 0; 2966 *pend = 0;
2283 w->wd = inotify_add_watch (fs_fd, path, mask); 2967 w->wd = inotify_add_watch (fs_fd, path, mask);
2284 } 2968 }
2285 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2969 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2286 } 2970 }
2287 } 2971 }
2288 else
2289 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2290 2972
2291 if (w->wd >= 0) 2973 if (w->wd >= 0)
2292 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);
2975
2976 /* now re-arm timer, if required */
2977 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2978 ev_timer_again (EV_A_ &w->timer);
2979 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2293} 2980}
2294 2981
2295static void noinline 2982static void noinline
2296infy_del (EV_P_ ev_stat *w) 2983infy_del (EV_P_ ev_stat *w)
2297{ 2984{
… …
2300 2987
2301 if (wd < 0) 2988 if (wd < 0)
2302 return; 2989 return;
2303 2990
2304 w->wd = -2; 2991 w->wd = -2;
2305 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 2992 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2306 wlist_del (&fs_hash [slot].head, (WL)w); 2993 wlist_del (&fs_hash [slot].head, (WL)w);
2307 2994
2308 /* remove this watcher, if others are watching it, they will rearm */ 2995 /* remove this watcher, if others are watching it, they will rearm */
2309 inotify_rm_watch (fs_fd, wd); 2996 inotify_rm_watch (fs_fd, wd);
2310} 2997}
2311 2998
2312static void noinline 2999static void noinline
2313infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3000infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2314{ 3001{
2315 if (slot < 0) 3002 if (slot < 0)
2316 /* overflow, need to check for all hahs slots */ 3003 /* overflow, need to check for all hash slots */
2317 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3004 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2318 infy_wd (EV_A_ slot, wd, ev); 3005 infy_wd (EV_A_ slot, wd, ev);
2319 else 3006 else
2320 { 3007 {
2321 WL w_; 3008 WL w_;
2322 3009
2323 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3010 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2324 { 3011 {
2325 ev_stat *w = (ev_stat *)w_; 3012 ev_stat *w = (ev_stat *)w_;
2326 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 */
2327 3014
2328 if (w->wd == wd || wd == -1) 3015 if (w->wd == wd || wd == -1)
2329 { 3016 {
2330 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3017 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2331 { 3018 {
3019 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2332 w->wd = -1; 3020 w->wd = -1;
2333 infy_add (EV_A_ w); /* re-add, no matter what */ 3021 infy_add (EV_A_ w); /* re-add, no matter what */
2334 } 3022 }
2335 3023
2336 stat_timer_cb (EV_A_ &w->timer, 0); 3024 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2341 3029
2342static void 3030static void
2343infy_cb (EV_P_ ev_io *w, int revents) 3031infy_cb (EV_P_ ev_io *w, int revents)
2344{ 3032{
2345 char buf [EV_INOTIFY_BUFSIZE]; 3033 char buf [EV_INOTIFY_BUFSIZE];
2346 struct inotify_event *ev = (struct inotify_event *)buf;
2347 int ofs; 3034 int ofs;
2348 int len = read (fs_fd, buf, sizeof (buf)); 3035 int len = read (fs_fd, buf, sizeof (buf));
2349 3036
2350 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);
2351 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 }
2352} 3043}
2353 3044
2354void 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
3078ev_check_2625 (EV_P)
3079{
3080 /* kernels < 2.6.25 are borked
3081 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3082 */
3083 if (ev_linux_version () < 0x020619)
3084 return;
3085
3086 fs_2625 = 1;
3087}
3088
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
2355infy_init (EV_P) 3101infy_init (EV_P)
2356{ 3102{
2357 if (fs_fd != -2) 3103 if (fs_fd != -2)
2358 return; 3104 return;
2359 3105
3106 fs_fd = -1;
3107
3108 ev_check_2625 (EV_A);
3109
2360 fs_fd = inotify_init (); 3110 fs_fd = infy_newfd ();
2361 3111
2362 if (fs_fd >= 0) 3112 if (fs_fd >= 0)
2363 { 3113 {
3114 fd_intern (fs_fd);
2364 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3115 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2365 ev_set_priority (&fs_w, EV_MAXPRI); 3116 ev_set_priority (&fs_w, EV_MAXPRI);
2366 ev_io_start (EV_A_ &fs_w); 3117 ev_io_start (EV_A_ &fs_w);
3118 ev_unref (EV_A);
2367 } 3119 }
2368} 3120}
2369 3121
2370void inline_size 3122inline_size void
2371infy_fork (EV_P) 3123infy_fork (EV_P)
2372{ 3124{
2373 int slot; 3125 int slot;
2374 3126
2375 if (fs_fd < 0) 3127 if (fs_fd < 0)
2376 return; 3128 return;
2377 3129
3130 ev_ref (EV_A);
3131 ev_io_stop (EV_A_ &fs_w);
2378 close (fs_fd); 3132 close (fs_fd);
2379 fs_fd = inotify_init (); 3133 fs_fd = infy_newfd ();
2380 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
2381 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3143 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2382 { 3144 {
2383 WL w_ = fs_hash [slot].head; 3145 WL w_ = fs_hash [slot].head;
2384 fs_hash [slot].head = 0; 3146 fs_hash [slot].head = 0;
2385 3147
2386 while (w_) 3148 while (w_)
… …
2391 w->wd = -1; 3153 w->wd = -1;
2392 3154
2393 if (fs_fd >= 0) 3155 if (fs_fd >= 0)
2394 infy_add (EV_A_ w); /* re-add, no matter what */ 3156 infy_add (EV_A_ w); /* re-add, no matter what */
2395 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);
2396 ev_timer_start (EV_A_ &w->timer); 3161 ev_timer_again (EV_A_ &w->timer);
3162 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3163 }
2397 } 3164 }
2398
2399 } 3165 }
2400} 3166}
2401 3167
3168#endif
3169
3170#ifdef _WIN32
3171# define EV_LSTAT(p,b) _stati64 (p, b)
3172#else
3173# define EV_LSTAT(p,b) lstat (p, b)
2402#endif 3174#endif
2403 3175
2404void 3176void
2405ev_stat_stat (EV_P_ ev_stat *w) 3177ev_stat_stat (EV_P_ ev_stat *w)
2406{ 3178{
… …
2413static void noinline 3185static void noinline
2414stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3186stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2415{ 3187{
2416 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3188 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2417 3189
2418 /* we copy this here each the time so that */ 3190 ev_statdata prev = w->attr;
2419 /* prev has the old value when the callback gets invoked */
2420 w->prev = w->attr;
2421 ev_stat_stat (EV_A_ w); 3191 ev_stat_stat (EV_A_ w);
2422 3192
2423 /* 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 */
2424 if ( 3194 if (
2425 w->prev.st_dev != w->attr.st_dev 3195 prev.st_dev != w->attr.st_dev
2426 || w->prev.st_ino != w->attr.st_ino 3196 || prev.st_ino != w->attr.st_ino
2427 || w->prev.st_mode != w->attr.st_mode 3197 || prev.st_mode != w->attr.st_mode
2428 || w->prev.st_nlink != w->attr.st_nlink 3198 || prev.st_nlink != w->attr.st_nlink
2429 || w->prev.st_uid != w->attr.st_uid 3199 || prev.st_uid != w->attr.st_uid
2430 || w->prev.st_gid != w->attr.st_gid 3200 || prev.st_gid != w->attr.st_gid
2431 || w->prev.st_rdev != w->attr.st_rdev 3201 || prev.st_rdev != w->attr.st_rdev
2432 || w->prev.st_size != w->attr.st_size 3202 || prev.st_size != w->attr.st_size
2433 || w->prev.st_atime != w->attr.st_atime 3203 || prev.st_atime != w->attr.st_atime
2434 || w->prev.st_mtime != w->attr.st_mtime 3204 || prev.st_mtime != w->attr.st_mtime
2435 || w->prev.st_ctime != w->attr.st_ctime 3205 || prev.st_ctime != w->attr.st_ctime
2436 ) { 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
2437 #if EV_USE_INOTIFY 3212 #if EV_USE_INOTIFY
3213 if (fs_fd >= 0)
3214 {
2438 infy_del (EV_A_ w); 3215 infy_del (EV_A_ w);
2439 infy_add (EV_A_ w); 3216 infy_add (EV_A_ w);
2440 ev_stat_stat (EV_A_ w); /* avoid race... */ 3217 ev_stat_stat (EV_A_ w); /* avoid race... */
3218 }
2441 #endif 3219 #endif
2442 3220
2443 ev_feed_event (EV_A_ w, EV_STAT); 3221 ev_feed_event (EV_A_ w, EV_STAT);
2444 } 3222 }
2445} 3223}
… …
2448ev_stat_start (EV_P_ ev_stat *w) 3226ev_stat_start (EV_P_ ev_stat *w)
2449{ 3227{
2450 if (expect_false (ev_is_active (w))) 3228 if (expect_false (ev_is_active (w)))
2451 return; 3229 return;
2452 3230
2453 /* since we use memcmp, we need to clear any padding data etc. */
2454 memset (&w->prev, 0, sizeof (ev_statdata));
2455 memset (&w->attr, 0, sizeof (ev_statdata));
2456
2457 ev_stat_stat (EV_A_ w); 3231 ev_stat_stat (EV_A_ w);
2458 3232
3233 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2459 if (w->interval < MIN_STAT_INTERVAL) 3234 w->interval = MIN_STAT_INTERVAL;
2460 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2461 3235
2462 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 3236 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2463 ev_set_priority (&w->timer, ev_priority (w)); 3237 ev_set_priority (&w->timer, ev_priority (w));
2464 3238
2465#if EV_USE_INOTIFY 3239#if EV_USE_INOTIFY
2466 infy_init (EV_A); 3240 infy_init (EV_A);
2467 3241
2468 if (fs_fd >= 0) 3242 if (fs_fd >= 0)
2469 infy_add (EV_A_ w); 3243 infy_add (EV_A_ w);
2470 else 3244 else
2471#endif 3245#endif
3246 {
2472 ev_timer_start (EV_A_ &w->timer); 3247 ev_timer_again (EV_A_ &w->timer);
3248 ev_unref (EV_A);
3249 }
2473 3250
2474 ev_start (EV_A_ (W)w, 1); 3251 ev_start (EV_A_ (W)w, 1);
3252
3253 EV_FREQUENT_CHECK;
2475} 3254}
2476 3255
2477void 3256void
2478ev_stat_stop (EV_P_ ev_stat *w) 3257ev_stat_stop (EV_P_ ev_stat *w)
2479{ 3258{
2480 clear_pending (EV_A_ (W)w); 3259 clear_pending (EV_A_ (W)w);
2481 if (expect_false (!ev_is_active (w))) 3260 if (expect_false (!ev_is_active (w)))
2482 return; 3261 return;
2483 3262
3263 EV_FREQUENT_CHECK;
3264
2484#if EV_USE_INOTIFY 3265#if EV_USE_INOTIFY
2485 infy_del (EV_A_ w); 3266 infy_del (EV_A_ w);
2486#endif 3267#endif
3268
3269 if (ev_is_active (&w->timer))
3270 {
3271 ev_ref (EV_A);
2487 ev_timer_stop (EV_A_ &w->timer); 3272 ev_timer_stop (EV_A_ &w->timer);
3273 }
2488 3274
2489 ev_stop (EV_A_ (W)w); 3275 ev_stop (EV_A_ (W)w);
3276
3277 EV_FREQUENT_CHECK;
2490} 3278}
2491#endif 3279#endif
2492 3280
2493#if EV_IDLE_ENABLE 3281#if EV_IDLE_ENABLE
2494void 3282void
… …
2496{ 3284{
2497 if (expect_false (ev_is_active (w))) 3285 if (expect_false (ev_is_active (w)))
2498 return; 3286 return;
2499 3287
2500 pri_adjust (EV_A_ (W)w); 3288 pri_adjust (EV_A_ (W)w);
3289
3290 EV_FREQUENT_CHECK;
2501 3291
2502 { 3292 {
2503 int active = ++idlecnt [ABSPRI (w)]; 3293 int active = ++idlecnt [ABSPRI (w)];
2504 3294
2505 ++idleall; 3295 ++idleall;
2506 ev_start (EV_A_ (W)w, active); 3296 ev_start (EV_A_ (W)w, active);
2507 3297
2508 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 3298 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2509 idles [ABSPRI (w)][active - 1] = w; 3299 idles [ABSPRI (w)][active - 1] = w;
2510 } 3300 }
3301
3302 EV_FREQUENT_CHECK;
2511} 3303}
2512 3304
2513void 3305void
2514ev_idle_stop (EV_P_ ev_idle *w) 3306ev_idle_stop (EV_P_ ev_idle *w)
2515{ 3307{
2516 clear_pending (EV_A_ (W)w); 3308 clear_pending (EV_A_ (W)w);
2517 if (expect_false (!ev_is_active (w))) 3309 if (expect_false (!ev_is_active (w)))
2518 return; 3310 return;
2519 3311
3312 EV_FREQUENT_CHECK;
3313
2520 { 3314 {
2521 int active = ev_active (w); 3315 int active = ev_active (w);
2522 3316
2523 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; 3317 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2524 ev_active (idles [ABSPRI (w)][active - 1]) = active; 3318 ev_active (idles [ABSPRI (w)][active - 1]) = active;
2525 3319
2526 ev_stop (EV_A_ (W)w); 3320 ev_stop (EV_A_ (W)w);
2527 --idleall; 3321 --idleall;
2528 } 3322 }
2529}
2530#endif
2531 3323
3324 EV_FREQUENT_CHECK;
3325}
3326#endif
3327
3328#if EV_PREPARE_ENABLE
2532void 3329void
2533ev_prepare_start (EV_P_ ev_prepare *w) 3330ev_prepare_start (EV_P_ ev_prepare *w)
2534{ 3331{
2535 if (expect_false (ev_is_active (w))) 3332 if (expect_false (ev_is_active (w)))
2536 return; 3333 return;
3334
3335 EV_FREQUENT_CHECK;
2537 3336
2538 ev_start (EV_A_ (W)w, ++preparecnt); 3337 ev_start (EV_A_ (W)w, ++preparecnt);
2539 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 3338 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2540 prepares [preparecnt - 1] = w; 3339 prepares [preparecnt - 1] = w;
3340
3341 EV_FREQUENT_CHECK;
2541} 3342}
2542 3343
2543void 3344void
2544ev_prepare_stop (EV_P_ ev_prepare *w) 3345ev_prepare_stop (EV_P_ ev_prepare *w)
2545{ 3346{
2546 clear_pending (EV_A_ (W)w); 3347 clear_pending (EV_A_ (W)w);
2547 if (expect_false (!ev_is_active (w))) 3348 if (expect_false (!ev_is_active (w)))
2548 return; 3349 return;
2549 3350
3351 EV_FREQUENT_CHECK;
3352
2550 { 3353 {
2551 int active = ev_active (w); 3354 int active = ev_active (w);
2552 3355
2553 prepares [active - 1] = prepares [--preparecnt]; 3356 prepares [active - 1] = prepares [--preparecnt];
2554 ev_active (prepares [active - 1]) = active; 3357 ev_active (prepares [active - 1]) = active;
2555 } 3358 }
2556 3359
2557 ev_stop (EV_A_ (W)w); 3360 ev_stop (EV_A_ (W)w);
2558}
2559 3361
3362 EV_FREQUENT_CHECK;
3363}
3364#endif
3365
3366#if EV_CHECK_ENABLE
2560void 3367void
2561ev_check_start (EV_P_ ev_check *w) 3368ev_check_start (EV_P_ ev_check *w)
2562{ 3369{
2563 if (expect_false (ev_is_active (w))) 3370 if (expect_false (ev_is_active (w)))
2564 return; 3371 return;
3372
3373 EV_FREQUENT_CHECK;
2565 3374
2566 ev_start (EV_A_ (W)w, ++checkcnt); 3375 ev_start (EV_A_ (W)w, ++checkcnt);
2567 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 3376 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2568 checks [checkcnt - 1] = w; 3377 checks [checkcnt - 1] = w;
3378
3379 EV_FREQUENT_CHECK;
2569} 3380}
2570 3381
2571void 3382void
2572ev_check_stop (EV_P_ ev_check *w) 3383ev_check_stop (EV_P_ ev_check *w)
2573{ 3384{
2574 clear_pending (EV_A_ (W)w); 3385 clear_pending (EV_A_ (W)w);
2575 if (expect_false (!ev_is_active (w))) 3386 if (expect_false (!ev_is_active (w)))
2576 return; 3387 return;
2577 3388
3389 EV_FREQUENT_CHECK;
3390
2578 { 3391 {
2579 int active = ev_active (w); 3392 int active = ev_active (w);
2580 3393
2581 checks [active - 1] = checks [--checkcnt]; 3394 checks [active - 1] = checks [--checkcnt];
2582 ev_active (checks [active - 1]) = active; 3395 ev_active (checks [active - 1]) = active;
2583 } 3396 }
2584 3397
2585 ev_stop (EV_A_ (W)w); 3398 ev_stop (EV_A_ (W)w);
3399
3400 EV_FREQUENT_CHECK;
2586} 3401}
3402#endif
2587 3403
2588#if EV_EMBED_ENABLE 3404#if EV_EMBED_ENABLE
2589void noinline 3405void noinline
2590ev_embed_sweep (EV_P_ ev_embed *w) 3406ev_embed_sweep (EV_P_ ev_embed *w)
2591{ 3407{
… …
2607embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3423embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2608{ 3424{
2609 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3425 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2610 3426
2611 { 3427 {
2612 struct ev_loop *loop = w->other; 3428 EV_P = w->other;
2613 3429
2614 while (fdchangecnt) 3430 while (fdchangecnt)
2615 { 3431 {
2616 fd_reify (EV_A); 3432 fd_reify (EV_A);
2617 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3433 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2618 } 3434 }
2619 } 3435 }
2620} 3436}
2621 3437
3438static void
3439embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
3440{
3441 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3442
3443 ev_embed_stop (EV_A_ w);
3444
3445 {
3446 EV_P = w->other;
3447
3448 ev_loop_fork (EV_A);
3449 ev_loop (EV_A_ EVLOOP_NONBLOCK);
3450 }
3451
3452 ev_embed_start (EV_A_ w);
3453}
3454
2622#if 0 3455#if 0
2623static void 3456static void
2624embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3457embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2625{ 3458{
2626 ev_idle_stop (EV_A_ idle); 3459 ev_idle_stop (EV_A_ idle);
… …
2632{ 3465{
2633 if (expect_false (ev_is_active (w))) 3466 if (expect_false (ev_is_active (w)))
2634 return; 3467 return;
2635 3468
2636 { 3469 {
2637 struct ev_loop *loop = w->other; 3470 EV_P = w->other;
2638 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 ()));
2639 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);
2640 } 3473 }
3474
3475 EV_FREQUENT_CHECK;
2641 3476
2642 ev_set_priority (&w->io, ev_priority (w)); 3477 ev_set_priority (&w->io, ev_priority (w));
2643 ev_io_start (EV_A_ &w->io); 3478 ev_io_start (EV_A_ &w->io);
2644 3479
2645 ev_prepare_init (&w->prepare, embed_prepare_cb); 3480 ev_prepare_init (&w->prepare, embed_prepare_cb);
2646 ev_set_priority (&w->prepare, EV_MINPRI); 3481 ev_set_priority (&w->prepare, EV_MINPRI);
2647 ev_prepare_start (EV_A_ &w->prepare); 3482 ev_prepare_start (EV_A_ &w->prepare);
2648 3483
3484 ev_fork_init (&w->fork, embed_fork_cb);
3485 ev_fork_start (EV_A_ &w->fork);
3486
2649 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 3487 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2650 3488
2651 ev_start (EV_A_ (W)w, 1); 3489 ev_start (EV_A_ (W)w, 1);
3490
3491 EV_FREQUENT_CHECK;
2652} 3492}
2653 3493
2654void 3494void
2655ev_embed_stop (EV_P_ ev_embed *w) 3495ev_embed_stop (EV_P_ ev_embed *w)
2656{ 3496{
2657 clear_pending (EV_A_ (W)w); 3497 clear_pending (EV_A_ (W)w);
2658 if (expect_false (!ev_is_active (w))) 3498 if (expect_false (!ev_is_active (w)))
2659 return; 3499 return;
2660 3500
3501 EV_FREQUENT_CHECK;
3502
2661 ev_io_stop (EV_A_ &w->io); 3503 ev_io_stop (EV_A_ &w->io);
2662 ev_prepare_stop (EV_A_ &w->prepare); 3504 ev_prepare_stop (EV_A_ &w->prepare);
3505 ev_fork_stop (EV_A_ &w->fork);
2663 3506
2664 ev_stop (EV_A_ (W)w); 3507 ev_stop (EV_A_ (W)w);
3508
3509 EV_FREQUENT_CHECK;
2665} 3510}
2666#endif 3511#endif
2667 3512
2668#if EV_FORK_ENABLE 3513#if EV_FORK_ENABLE
2669void 3514void
2670ev_fork_start (EV_P_ ev_fork *w) 3515ev_fork_start (EV_P_ ev_fork *w)
2671{ 3516{
2672 if (expect_false (ev_is_active (w))) 3517 if (expect_false (ev_is_active (w)))
2673 return; 3518 return;
3519
3520 EV_FREQUENT_CHECK;
2674 3521
2675 ev_start (EV_A_ (W)w, ++forkcnt); 3522 ev_start (EV_A_ (W)w, ++forkcnt);
2676 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 3523 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2677 forks [forkcnt - 1] = w; 3524 forks [forkcnt - 1] = w;
3525
3526 EV_FREQUENT_CHECK;
2678} 3527}
2679 3528
2680void 3529void
2681ev_fork_stop (EV_P_ ev_fork *w) 3530ev_fork_stop (EV_P_ ev_fork *w)
2682{ 3531{
2683 clear_pending (EV_A_ (W)w); 3532 clear_pending (EV_A_ (W)w);
2684 if (expect_false (!ev_is_active (w))) 3533 if (expect_false (!ev_is_active (w)))
2685 return; 3534 return;
2686 3535
3536 EV_FREQUENT_CHECK;
3537
2687 { 3538 {
2688 int active = ev_active (w); 3539 int active = ev_active (w);
2689 3540
2690 forks [active - 1] = forks [--forkcnt]; 3541 forks [active - 1] = forks [--forkcnt];
2691 ev_active (forks [active - 1]) = active; 3542 ev_active (forks [active - 1]) = active;
2692 } 3543 }
2693 3544
2694 ev_stop (EV_A_ (W)w); 3545 ev_stop (EV_A_ (W)w);
3546
3547 EV_FREQUENT_CHECK;
2695} 3548}
2696#endif 3549#endif
2697 3550
2698#if EV_ASYNC_ENABLE 3551#if EV_ASYNC_ENABLE
2699void 3552void
… …
2701{ 3554{
2702 if (expect_false (ev_is_active (w))) 3555 if (expect_false (ev_is_active (w)))
2703 return; 3556 return;
2704 3557
2705 evpipe_init (EV_A); 3558 evpipe_init (EV_A);
3559
3560 EV_FREQUENT_CHECK;
2706 3561
2707 ev_start (EV_A_ (W)w, ++asynccnt); 3562 ev_start (EV_A_ (W)w, ++asynccnt);
2708 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 3563 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2);
2709 asyncs [asynccnt - 1] = w; 3564 asyncs [asynccnt - 1] = w;
3565
3566 EV_FREQUENT_CHECK;
2710} 3567}
2711 3568
2712void 3569void
2713ev_async_stop (EV_P_ ev_async *w) 3570ev_async_stop (EV_P_ ev_async *w)
2714{ 3571{
2715 clear_pending (EV_A_ (W)w); 3572 clear_pending (EV_A_ (W)w);
2716 if (expect_false (!ev_is_active (w))) 3573 if (expect_false (!ev_is_active (w)))
2717 return; 3574 return;
2718 3575
3576 EV_FREQUENT_CHECK;
3577
2719 { 3578 {
2720 int active = ev_active (w); 3579 int active = ev_active (w);
2721 3580
2722 asyncs [active - 1] = asyncs [--asynccnt]; 3581 asyncs [active - 1] = asyncs [--asynccnt];
2723 ev_active (asyncs [active - 1]) = active; 3582 ev_active (asyncs [active - 1]) = active;
2724 } 3583 }
2725 3584
2726 ev_stop (EV_A_ (W)w); 3585 ev_stop (EV_A_ (W)w);
3586
3587 EV_FREQUENT_CHECK;
2727} 3588}
2728 3589
2729void 3590void
2730ev_async_send (EV_P_ ev_async *w) 3591ev_async_send (EV_P_ ev_async *w)
2731{ 3592{
2732 w->sent = 1; 3593 w->sent = 1;
2733 evpipe_write (EV_A_ &gotasync); 3594 evpipe_write (EV_A_ &async_pending);
2734} 3595}
2735#endif 3596#endif
2736 3597
2737/*****************************************************************************/ 3598/*****************************************************************************/
2738 3599
… …
2748once_cb (EV_P_ struct ev_once *once, int revents) 3609once_cb (EV_P_ struct ev_once *once, int revents)
2749{ 3610{
2750 void (*cb)(int revents, void *arg) = once->cb; 3611 void (*cb)(int revents, void *arg) = once->cb;
2751 void *arg = once->arg; 3612 void *arg = once->arg;
2752 3613
2753 ev_io_stop (EV_A_ &once->io); 3614 ev_io_stop (EV_A_ &once->io);
2754 ev_timer_stop (EV_A_ &once->to); 3615 ev_timer_stop (EV_A_ &once->to);
2755 ev_free (once); 3616 ev_free (once);
2756 3617
2757 cb (revents, arg); 3618 cb (revents, arg);
2758} 3619}
2759 3620
2760static void 3621static void
2761once_cb_io (EV_P_ ev_io *w, int revents) 3622once_cb_io (EV_P_ ev_io *w, int revents)
2762{ 3623{
2763 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3624 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3625
3626 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2764} 3627}
2765 3628
2766static void 3629static void
2767once_cb_to (EV_P_ ev_timer *w, int revents) 3630once_cb_to (EV_P_ ev_timer *w, int revents)
2768{ 3631{
2769 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3632 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3633
3634 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2770} 3635}
2771 3636
2772void 3637void
2773ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3638ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2774{ 3639{
2775 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));
2776 3641
2777 if (expect_false (!once)) 3642 if (expect_false (!once))
2778 { 3643 {
2779 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3644 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
2780 return; 3645 return;
2781 } 3646 }
2782 3647
2783 once->cb = cb; 3648 once->cb = cb;
2784 once->arg = arg; 3649 once->arg = arg;
… …
2796 ev_timer_set (&once->to, timeout, 0.); 3661 ev_timer_set (&once->to, timeout, 0.);
2797 ev_timer_start (EV_A_ &once->to); 3662 ev_timer_start (EV_A_ &once->to);
2798 } 3663 }
2799} 3664}
2800 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
2801#if EV_MULTIPLICITY 3782#if EV_MULTIPLICITY
2802 #include "ev_wrap.h" 3783 #include "ev_wrap.h"
2803#endif 3784#endif
2804 3785
2805#ifdef __cplusplus 3786#ifdef __cplusplus

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