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Comparing libev/ev.c (file contents):
Revision 1.342 by root, Mon Mar 29 12:40:57 2010 UTC vs.
Revision 1.441 by root, Wed May 30 15:45:40 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 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 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP EV_FEATURE_OS 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H
92# define EV_USE_SELECT EV_FEATURE_BACKENDS 104# define EV_USE_POLL EV_FEATURE_BACKENDS
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL EV_FEATURE_BACKENDS
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
112# ifndef EV_USE_EPOLL
108# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
109# else
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE
116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
117# else
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
130# ifndef EV_USE_PORT
124# define EV_USE_PORT EV_FEATURE_BACKENDS 131# define EV_USE_PORT EV_FEATURE_BACKENDS
125# else
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
139# ifndef EV_USE_INOTIFY
132# define EV_USE_INOTIFY EV_FEATURE_OS 140# define EV_USE_INOTIFY EV_FEATURE_OS
133# else
134# define EV_USE_INOTIFY 0
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
148# ifndef EV_USE_SIGNALFD
140# define EV_USE_SIGNALFD EV_FEATURE_OS 149# define EV_USE_SIGNALFD EV_FEATURE_OS
141# else
142# define EV_USE_SIGNALFD 0
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD EV_FEATURE_OS 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
171 181
172#ifdef EV_H 182#ifdef EV_H
173# include EV_H 183# include EV_H
174#else 184#else
175# include "ev.h" 185# include "ev.h"
186#endif
187
188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
176#endif 197#endif
177 198
178#ifndef _WIN32 199#ifndef _WIN32
179# include <sys/time.h> 200# include <sys/time.h>
180# include <sys/wait.h> 201# include <sys/wait.h>
181# include <unistd.h> 202# include <unistd.h>
182#else 203#else
183# include <io.h> 204# include <io.h>
184# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
185# include <windows.h> 207# include <windows.h>
186# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
188# endif 210# endif
189# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
190#endif 212#endif
191 213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221
192/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
193 223
194/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 225#if defined EV_NSIG
196/* use what's provided */ 226/* use what's provided */
197#elif defined (NSIG) 227#elif defined NSIG
198# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
199#elif defined(_NSIG) 229#elif defined _NSIG
200# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
201#elif defined (SIGMAX) 231#elif defined SIGMAX
202# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
203#elif defined (SIG_MAX) 233#elif defined SIG_MAX
204# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
205#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
206# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
207#elif defined (MAXSIG) 237#elif defined MAXSIG
208# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 239#elif defined MAX_SIG
210# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
212# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 243#elif defined _sys_nsig
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 245#else
216# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line, */ 247/* to make it compile regardless, just remove the above line, */
218/* but consider reporting it, too! :) */ 248/* but consider reporting it, too! :) */
219# define EV_NSIG 65 249# define EV_NSIG 65
220#endif 250#endif
221 251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
254#endif
255
222#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
223# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
224# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
225# else 259# else
226# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
227# endif 261# endif
228#endif 262#endif
229 263
230#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
231# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
232# define EV_USE_MONOTONIC EV_FEATURE_OS 266# define EV_USE_MONOTONIC EV_FEATURE_OS
233# else 267# else
234# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
235# endif 269# endif
236#endif 270#endif
… …
326#endif 360#endif
327 361
328/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* 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. */ 363/* which makes programs even slower. might work on other unices, too. */
330#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
331# include <syscall.h> 365# include <sys/syscall.h>
332# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
333# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
334# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
335# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
336# else 370# else
… …
361# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
362# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
363#endif 397#endif
364 398
365#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
366# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
367# include <sys/select.h> 402# include <sys/select.h>
368# endif 403# endif
369#endif 404#endif
370 405
371#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
372# include <sys/utsname.h>
373# include <sys/statfs.h> 407# include <sys/statfs.h>
374# include <sys/inotify.h> 408# include <sys/inotify.h>
375/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
376# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
377# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
378# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
379# endif 413# endif
380#endif
381
382#if EV_SELECT_IS_WINSOCKET
383# include <winsock.h>
384#endif 414#endif
385 415
386#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
387/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
388# include <stdint.h> 418# include <stdint.h>
… …
394# define EFD_CLOEXEC O_CLOEXEC 424# define EFD_CLOEXEC O_CLOEXEC
395# else 425# else
396# define EFD_CLOEXEC 02000000 426# define EFD_CLOEXEC 02000000
397# endif 427# endif
398# endif 428# endif
399# ifdef __cplusplus
400extern "C" {
401# endif
402int (eventfd) (unsigned int initval, int flags); 429EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
403# ifdef __cplusplus
404}
405# endif
406#endif 430#endif
407 431
408#if EV_USE_SIGNALFD 432#if EV_USE_SIGNALFD
409/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
410# include <stdint.h> 434# include <stdint.h>
… …
416# define SFD_CLOEXEC O_CLOEXEC 440# define SFD_CLOEXEC O_CLOEXEC
417# else 441# else
418# define SFD_CLOEXEC 02000000 442# define SFD_CLOEXEC 02000000
419# endif 443# endif
420# endif 444# endif
421# ifdef __cplusplus
422extern "C" {
423# endif
424int signalfd (int fd, const sigset_t *mask, int flags); 445EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
425 446
426struct signalfd_siginfo 447struct signalfd_siginfo
427{ 448{
428 uint32_t ssi_signo; 449 uint32_t ssi_signo;
429 char pad[128 - sizeof (uint32_t)]; 450 char pad[128 - sizeof (uint32_t)];
430}; 451};
431# ifdef __cplusplus
432}
433# endif 452#endif
434#endif
435
436 453
437/**/ 454/**/
438 455
439#if EV_VERIFY >= 3 456#if EV_VERIFY >= 3
440# define EV_FREQUENT_CHECK ev_verify (EV_A) 457# define EV_FREQUENT_CHECK ev_verify (EV_A)
441#else 458#else
442# define EV_FREQUENT_CHECK do { } while (0) 459# define EV_FREQUENT_CHECK do { } while (0)
443#endif 460#endif
444 461
445/* 462/*
446 * This is used to avoid floating point rounding problems. 463 * This is used to work around floating point rounding problems.
447 * It is added to ev_rt_now when scheduling periodics
448 * to ensure progress, time-wise, even when rounding
449 * errors are against us.
450 * This value is good at least till the year 4000. 464 * This value is good at least till the year 4000.
451 * Better solutions welcome.
452 */ 465 */
453#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 466#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
467/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
454 468
455#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 469#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
456#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 470#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
457 471
472#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
473#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
474
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */
477/*
478 * libecb - http://software.schmorp.de/pkg/libecb
479 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved.
483 *
484 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met:
486 *
487 * 1. Redistributions of source code must retain the above copyright notice,
488 * this list of conditions and the following disclaimer.
489 *
490 * 2. Redistributions in binary form must reproduce the above copyright
491 * notice, this list of conditions and the following disclaimer in the
492 * documentation and/or other materials provided with the distribution.
493 *
494 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
495 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
496 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
497 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
498 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE.
504 */
505
506#ifndef ECB_H
507#define ECB_H
508
509/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001
511
512#ifdef _WIN32
513 typedef signed char int8_t;
514 typedef unsigned char uint8_t;
515 typedef signed short int16_t;
516 typedef unsigned short uint16_t;
517 typedef signed int int32_t;
518 typedef unsigned int uint32_t;
458#if __GNUC__ >= 4 519 #if __GNUC__
459# define expect(expr,value) __builtin_expect ((expr),(value)) 520 typedef signed long long int64_t;
460# define noinline __attribute__ ((noinline)) 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t;
525 #endif
526 #ifdef _WIN64
527 #define ECB_PTRSIZE 8
528 typedef uint64_t uintptr_t;
529 typedef int64_t intptr_t;
530 #else
531 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t;
534 #endif
535 typedef intptr_t ptrdiff_t;
461#else 536#else
462# define expect(expr,value) (expr) 537 #include <inttypes.h>
463# define noinline 538 #if UINTMAX_MAX > 0xffffffffU
464# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 539 #define ECB_PTRSIZE 8
465# define inline 540 #else
541 #define ECB_PTRSIZE 4
542 #endif
466# endif 543#endif
544
545/* many compilers define _GNUC_ to some versions but then only implement
546 * what their idiot authors think are the "more important" extensions,
547 * causing enormous grief in return for some better fake benchmark numbers.
548 * or so.
549 * we try to detect these and simply assume they are not gcc - if they have
550 * an issue with that they should have done it right in the first place.
551 */
552#ifndef ECB_GCC_VERSION
553 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
554 #define ECB_GCC_VERSION(major,minor) 0
555 #else
556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
467#endif 557 #endif
558#endif
468 559
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
561#define ECB_C99 (__STDC_VERSION__ >= 199901L)
562#define ECB_C11 (__STDC_VERSION__ >= 201112L)
563#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP98 (__cplusplus >= 199711L)
565#define ECB_CPP11 (__cplusplus >= 201103L)
566
567/*****************************************************************************/
568
569/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
570/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
571
572#if ECB_NO_THREADS
573 #define ECB_NO_SMP 1
574#endif
575
576#if ECB_NO_SMP
577 #define ECB_MEMORY_FENCE do { } while (0)
578#endif
579
580#ifndef ECB_MEMORY_FENCE
581 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
582 #if __i386 || __i386__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
584 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
585 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
586 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
587 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
588 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
589 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
590 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
591 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
592 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
593 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
594 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
595 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
596 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
597 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
598 #elif __sparc || __sparc__
599 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
601 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
602 #elif defined __s390__ || defined __s390x__
603 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
604 #elif defined __mips__
605 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
606 #elif defined __alpha__
607 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
608 #elif defined __hppa__
609 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
610 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
611 #elif defined __ia64__
612 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
613 #endif
614 #endif
615#endif
616
617#ifndef ECB_MEMORY_FENCE
618 #if ECB_GCC_VERSION(4,7)
619 /* see comment below about the C11 memory model. in short - avoid */
620 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
621 #elif defined __clang && __has_feature (cxx_atomic)
622 /* see above */
623 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
624 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
625 #define ECB_MEMORY_FENCE __sync_synchronize ()
626 #elif _MSC_VER >= 1400 /* VC++ 2005 */
627 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
628 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
629 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
630 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
631 #elif defined _WIN32
632 #include <WinNT.h>
633 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
634 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
635 #include <mbarrier.h>
636 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
637 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
638 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
639 #elif __xlC__
640 #define ECB_MEMORY_FENCE __sync ()
641 #endif
642#endif
643
644#ifndef ECB_MEMORY_FENCE
645 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
646 /* we assume that these memory fences work on all variables/all memory accesses, */
647 /* not just C11 atomics and atomic accesses */
648 #include <stdatomic.h>
649 /* unfortunately, the C11 memory model seems to be very limited, and unable to express */
650 /* simple barrier semantics. That means we need to take out thor's hammer. */
651 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
652 #endif
653#endif
654
655#ifndef ECB_MEMORY_FENCE
656 #if !ECB_AVOID_PTHREADS
657 /*
658 * if you get undefined symbol references to pthread_mutex_lock,
659 * or failure to find pthread.h, then you should implement
660 * the ECB_MEMORY_FENCE operations for your cpu/compiler
661 * OR provide pthread.h and link against the posix thread library
662 * of your system.
663 */
664 #include <pthread.h>
665 #define ECB_NEEDS_PTHREADS 1
666 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
667
668 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
669 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
670 #endif
671#endif
672
673#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
674 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
675#endif
676
677#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
678 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
679#endif
680
681/*****************************************************************************/
682
683#if __cplusplus
684 #define ecb_inline static inline
685#elif ECB_GCC_VERSION(2,5)
686 #define ecb_inline static __inline__
687#elif ECB_C99
688 #define ecb_inline static inline
689#else
690 #define ecb_inline static
691#endif
692
693#if ECB_GCC_VERSION(3,3)
694 #define ecb_restrict __restrict__
695#elif ECB_C99
696 #define ecb_restrict restrict
697#else
698 #define ecb_restrict
699#endif
700
701typedef int ecb_bool;
702
703#define ECB_CONCAT_(a, b) a ## b
704#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
705#define ECB_STRINGIFY_(a) # a
706#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
707
708#define ecb_function_ ecb_inline
709
710#if ECB_GCC_VERSION(3,1)
711 #define ecb_attribute(attrlist) __attribute__(attrlist)
712 #define ecb_is_constant(expr) __builtin_constant_p (expr)
713 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
714 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
715#else
716 #define ecb_attribute(attrlist)
717 #define ecb_is_constant(expr) 0
718 #define ecb_expect(expr,value) (expr)
719 #define ecb_prefetch(addr,rw,locality)
720#endif
721
722/* no emulation for ecb_decltype */
723#if ECB_GCC_VERSION(4,5)
724 #define ecb_decltype(x) __decltype(x)
725#elif ECB_GCC_VERSION(3,0)
726 #define ecb_decltype(x) __typeof(x)
727#endif
728
729#define ecb_noinline ecb_attribute ((__noinline__))
730#define ecb_unused ecb_attribute ((__unused__))
731#define ecb_const ecb_attribute ((__const__))
732#define ecb_pure ecb_attribute ((__pure__))
733
734#if ECB_C11
735 #define ecb_noreturn _Noreturn
736#else
737 #define ecb_noreturn ecb_attribute ((__noreturn__))
738#endif
739
740#if ECB_GCC_VERSION(4,3)
741 #define ecb_artificial ecb_attribute ((__artificial__))
742 #define ecb_hot ecb_attribute ((__hot__))
743 #define ecb_cold ecb_attribute ((__cold__))
744#else
745 #define ecb_artificial
746 #define ecb_hot
747 #define ecb_cold
748#endif
749
750/* put around conditional expressions if you are very sure that the */
751/* expression is mostly true or mostly false. note that these return */
752/* booleans, not the expression. */
469#define expect_false(expr) expect ((expr) != 0, 0) 753#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
470#define expect_true(expr) expect ((expr) != 0, 1) 754#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
755/* for compatibility to the rest of the world */
756#define ecb_likely(expr) ecb_expect_true (expr)
757#define ecb_unlikely(expr) ecb_expect_false (expr)
758
759/* count trailing zero bits and count # of one bits */
760#if ECB_GCC_VERSION(3,4)
761 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
762 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
763 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
764 #define ecb_ctz32(x) __builtin_ctz (x)
765 #define ecb_ctz64(x) __builtin_ctzll (x)
766 #define ecb_popcount32(x) __builtin_popcount (x)
767 /* no popcountll */
768#else
769 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
770 ecb_function_ int
771 ecb_ctz32 (uint32_t x)
772 {
773 int r = 0;
774
775 x &= ~x + 1; /* this isolates the lowest bit */
776
777#if ECB_branchless_on_i386
778 r += !!(x & 0xaaaaaaaa) << 0;
779 r += !!(x & 0xcccccccc) << 1;
780 r += !!(x & 0xf0f0f0f0) << 2;
781 r += !!(x & 0xff00ff00) << 3;
782 r += !!(x & 0xffff0000) << 4;
783#else
784 if (x & 0xaaaaaaaa) r += 1;
785 if (x & 0xcccccccc) r += 2;
786 if (x & 0xf0f0f0f0) r += 4;
787 if (x & 0xff00ff00) r += 8;
788 if (x & 0xffff0000) r += 16;
789#endif
790
791 return r;
792 }
793
794 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
795 ecb_function_ int
796 ecb_ctz64 (uint64_t x)
797 {
798 int shift = x & 0xffffffffU ? 0 : 32;
799 return ecb_ctz32 (x >> shift) + shift;
800 }
801
802 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
803 ecb_function_ int
804 ecb_popcount32 (uint32_t x)
805 {
806 x -= (x >> 1) & 0x55555555;
807 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
808 x = ((x >> 4) + x) & 0x0f0f0f0f;
809 x *= 0x01010101;
810
811 return x >> 24;
812 }
813
814 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
815 ecb_function_ int ecb_ld32 (uint32_t x)
816 {
817 int r = 0;
818
819 if (x >> 16) { x >>= 16; r += 16; }
820 if (x >> 8) { x >>= 8; r += 8; }
821 if (x >> 4) { x >>= 4; r += 4; }
822 if (x >> 2) { x >>= 2; r += 2; }
823 if (x >> 1) { r += 1; }
824
825 return r;
826 }
827
828 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
829 ecb_function_ int ecb_ld64 (uint64_t x)
830 {
831 int r = 0;
832
833 if (x >> 32) { x >>= 32; r += 32; }
834
835 return r + ecb_ld32 (x);
836 }
837#endif
838
839ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
840ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
841ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
842ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
843
844ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
845ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
846{
847 return ( (x * 0x0802U & 0x22110U)
848 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
849}
850
851ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
852ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
853{
854 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
855 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
856 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
857 x = ( x >> 8 ) | ( x << 8);
858
859 return x;
860}
861
862ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
863ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
864{
865 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
866 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
867 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
868 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
869 x = ( x >> 16 ) | ( x << 16);
870
871 return x;
872}
873
874/* popcount64 is only available on 64 bit cpus as gcc builtin */
875/* so for this version we are lazy */
876ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
877ecb_function_ int
878ecb_popcount64 (uint64_t x)
879{
880 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
881}
882
883ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
884ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
885ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
886ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
887ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
888ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
889ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
890ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
891
892ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
893ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
894ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
895ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
896ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
897ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
898ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
899ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
900
901#if ECB_GCC_VERSION(4,3)
902 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
903 #define ecb_bswap32(x) __builtin_bswap32 (x)
904 #define ecb_bswap64(x) __builtin_bswap64 (x)
905#else
906 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
907 ecb_function_ uint16_t
908 ecb_bswap16 (uint16_t x)
909 {
910 return ecb_rotl16 (x, 8);
911 }
912
913 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
914 ecb_function_ uint32_t
915 ecb_bswap32 (uint32_t x)
916 {
917 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
918 }
919
920 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
921 ecb_function_ uint64_t
922 ecb_bswap64 (uint64_t x)
923 {
924 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
925 }
926#endif
927
928#if ECB_GCC_VERSION(4,5)
929 #define ecb_unreachable() __builtin_unreachable ()
930#else
931 /* this seems to work fine, but gcc always emits a warning for it :/ */
932 ecb_inline void ecb_unreachable (void) ecb_noreturn;
933 ecb_inline void ecb_unreachable (void) { }
934#endif
935
936/* try to tell the compiler that some condition is definitely true */
937#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
938
939ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
940ecb_inline unsigned char
941ecb_byteorder_helper (void)
942{
943 const uint32_t u = 0x11223344;
944 return *(unsigned char *)&u;
945}
946
947ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
948ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
949ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
950ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
951
952#if ECB_GCC_VERSION(3,0) || ECB_C99
953 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
954#else
955 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
956#endif
957
958#if __cplusplus
959 template<typename T>
960 static inline T ecb_div_rd (T val, T div)
961 {
962 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
963 }
964 template<typename T>
965 static inline T ecb_div_ru (T val, T div)
966 {
967 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
968 }
969#else
970 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
971 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
972#endif
973
974#if ecb_cplusplus_does_not_suck
975 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
976 template<typename T, int N>
977 static inline int ecb_array_length (const T (&arr)[N])
978 {
979 return N;
980 }
981#else
982 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
983#endif
984
985#endif
986
987/* ECB.H END */
988
989#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
990/* if your architecture doesn't need memory fences, e.g. because it is
991 * single-cpu/core, or if you use libev in a project that doesn't use libev
992 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
993 * libev, in which cases the memory fences become nops.
994 * alternatively, you can remove this #error and link against libpthread,
995 * which will then provide the memory fences.
996 */
997# error "memory fences not defined for your architecture, please report"
998#endif
999
1000#ifndef ECB_MEMORY_FENCE
1001# define ECB_MEMORY_FENCE do { } while (0)
1002# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1003# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1004#endif
1005
1006#define expect_false(cond) ecb_expect_false (cond)
1007#define expect_true(cond) ecb_expect_true (cond)
1008#define noinline ecb_noinline
1009
471#define inline_size static inline 1010#define inline_size ecb_inline
472 1011
473#if EV_FEATURE_CODE 1012#if EV_FEATURE_CODE
474# define inline_speed static inline 1013# define inline_speed ecb_inline
475#else 1014#else
476# define inline_speed static noinline 1015# define inline_speed static noinline
477#endif 1016#endif
478 1017
479#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1018#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
… …
494#define ev_active(w) ((W)(w))->active 1033#define ev_active(w) ((W)(w))->active
495#define ev_at(w) ((WT)(w))->at 1034#define ev_at(w) ((WT)(w))->at
496 1035
497#if EV_USE_REALTIME 1036#if EV_USE_REALTIME
498/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 1037/* sig_atomic_t is used to avoid per-thread variables or locking but still */
499/* giving it a reasonably high chance of working on typical architetcures */ 1038/* giving it a reasonably high chance of working on typical architectures */
500static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1039static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
501#endif 1040#endif
502 1041
503#if EV_USE_MONOTONIC 1042#if EV_USE_MONOTONIC
504static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1043static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
518# include "ev_win32.c" 1057# include "ev_win32.c"
519#endif 1058#endif
520 1059
521/*****************************************************************************/ 1060/*****************************************************************************/
522 1061
1062/* define a suitable floor function (only used by periodics atm) */
1063
1064#if EV_USE_FLOOR
1065# include <math.h>
1066# define ev_floor(v) floor (v)
1067#else
1068
1069#include <float.h>
1070
1071/* a floor() replacement function, should be independent of ev_tstamp type */
1072static ev_tstamp noinline
1073ev_floor (ev_tstamp v)
1074{
1075 /* the choice of shift factor is not terribly important */
1076#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1077 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1078#else
1079 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1080#endif
1081
1082 /* argument too large for an unsigned long? */
1083 if (expect_false (v >= shift))
1084 {
1085 ev_tstamp f;
1086
1087 if (v == v - 1.)
1088 return v; /* very large number */
1089
1090 f = shift * ev_floor (v * (1. / shift));
1091 return f + ev_floor (v - f);
1092 }
1093
1094 /* special treatment for negative args? */
1095 if (expect_false (v < 0.))
1096 {
1097 ev_tstamp f = -ev_floor (-v);
1098
1099 return f - (f == v ? 0 : 1);
1100 }
1101
1102 /* fits into an unsigned long */
1103 return (unsigned long)v;
1104}
1105
1106#endif
1107
1108/*****************************************************************************/
1109
1110#ifdef __linux
1111# include <sys/utsname.h>
1112#endif
1113
1114static unsigned int noinline ecb_cold
1115ev_linux_version (void)
1116{
1117#ifdef __linux
1118 unsigned int v = 0;
1119 struct utsname buf;
1120 int i;
1121 char *p = buf.release;
1122
1123 if (uname (&buf))
1124 return 0;
1125
1126 for (i = 3+1; --i; )
1127 {
1128 unsigned int c = 0;
1129
1130 for (;;)
1131 {
1132 if (*p >= '0' && *p <= '9')
1133 c = c * 10 + *p++ - '0';
1134 else
1135 {
1136 p += *p == '.';
1137 break;
1138 }
1139 }
1140
1141 v = (v << 8) | c;
1142 }
1143
1144 return v;
1145#else
1146 return 0;
1147#endif
1148}
1149
1150/*****************************************************************************/
1151
523#if EV_AVOID_STDIO 1152#if EV_AVOID_STDIO
524static void noinline 1153static void noinline ecb_cold
525ev_printerr (const char *msg) 1154ev_printerr (const char *msg)
526{ 1155{
527 write (STDERR_FILENO, msg, strlen (msg)); 1156 write (STDERR_FILENO, msg, strlen (msg));
528} 1157}
529#endif 1158#endif
530 1159
531static void (*syserr_cb)(const char *msg); 1160static void (*syserr_cb)(const char *msg) EV_THROW;
532 1161
533void 1162void ecb_cold
534ev_set_syserr_cb (void (*cb)(const char *msg)) 1163ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
535{ 1164{
536 syserr_cb = cb; 1165 syserr_cb = cb;
537} 1166}
538 1167
539static void noinline 1168static void noinline ecb_cold
540ev_syserr (const char *msg) 1169ev_syserr (const char *msg)
541{ 1170{
542 if (!msg) 1171 if (!msg)
543 msg = "(libev) system error"; 1172 msg = "(libev) system error";
544 1173
545 if (syserr_cb) 1174 if (syserr_cb)
546 syserr_cb (msg); 1175 syserr_cb (msg);
547 else 1176 else
548 { 1177 {
549#if EV_AVOID_STDIO 1178#if EV_AVOID_STDIO
550 const char *err = strerror (errno);
551
552 ev_printerr (msg); 1179 ev_printerr (msg);
553 ev_printerr (": "); 1180 ev_printerr (": ");
554 ev_printerr (err); 1181 ev_printerr (strerror (errno));
555 ev_printerr ("\n"); 1182 ev_printerr ("\n");
556#else 1183#else
557 perror (msg); 1184 perror (msg);
558#endif 1185#endif
559 abort (); 1186 abort ();
560 } 1187 }
561} 1188}
562 1189
563static void * 1190static void *
564ev_realloc_emul (void *ptr, long size) 1191ev_realloc_emul (void *ptr, long size) EV_THROW
565{ 1192{
566#if __GLIBC__ 1193#if __GLIBC__
567 return realloc (ptr, size); 1194 return realloc (ptr, size);
568#else 1195#else
569 /* some systems, notably openbsd and darwin, fail to properly 1196 /* some systems, notably openbsd and darwin, fail to properly
… …
577 free (ptr); 1204 free (ptr);
578 return 0; 1205 return 0;
579#endif 1206#endif
580} 1207}
581 1208
582static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1209static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
583 1210
584void 1211void ecb_cold
585ev_set_allocator (void *(*cb)(void *ptr, long size)) 1212ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
586{ 1213{
587 alloc = cb; 1214 alloc = cb;
588} 1215}
589 1216
590inline_speed void * 1217inline_speed void *
… …
593 ptr = alloc (ptr, size); 1220 ptr = alloc (ptr, size);
594 1221
595 if (!ptr && size) 1222 if (!ptr && size)
596 { 1223 {
597#if EV_AVOID_STDIO 1224#if EV_AVOID_STDIO
598 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1225 ev_printerr ("(libev) memory allocation failed, aborting.\n");
599#else 1226#else
600 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1227 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
601#endif 1228#endif
602 abort (); 1229 abort ();
603 } 1230 }
604 1231
605 return ptr; 1232 return ptr;
… …
622 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1249 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
623 unsigned char unused; 1250 unsigned char unused;
624#if EV_USE_EPOLL 1251#if EV_USE_EPOLL
625 unsigned int egen; /* generation counter to counter epoll bugs */ 1252 unsigned int egen; /* generation counter to counter epoll bugs */
626#endif 1253#endif
627#if EV_SELECT_IS_WINSOCKET 1254#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
628 SOCKET handle; 1255 SOCKET handle;
1256#endif
1257#if EV_USE_IOCP
1258 OVERLAPPED or, ow;
629#endif 1259#endif
630} ANFD; 1260} ANFD;
631 1261
632/* stores the pending event set for a given watcher */ 1262/* stores the pending event set for a given watcher */
633typedef struct 1263typedef struct
… …
675 #undef VAR 1305 #undef VAR
676 }; 1306 };
677 #include "ev_wrap.h" 1307 #include "ev_wrap.h"
678 1308
679 static struct ev_loop default_loop_struct; 1309 static struct ev_loop default_loop_struct;
680 struct ev_loop *ev_default_loop_ptr; 1310 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
681 1311
682#else 1312#else
683 1313
684 ev_tstamp ev_rt_now; 1314 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
685 #define VAR(name,decl) static decl; 1315 #define VAR(name,decl) static decl;
686 #include "ev_vars.h" 1316 #include "ev_vars.h"
687 #undef VAR 1317 #undef VAR
688 1318
689 static int ev_default_loop_ptr; 1319 static int ev_default_loop_ptr;
… …
698# define EV_RELEASE_CB (void)0 1328# define EV_RELEASE_CB (void)0
699# define EV_ACQUIRE_CB (void)0 1329# define EV_ACQUIRE_CB (void)0
700# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1330# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
701#endif 1331#endif
702 1332
703#define EVUNLOOP_RECURSE 0x80 1333#define EVBREAK_RECURSE 0x80
704 1334
705/*****************************************************************************/ 1335/*****************************************************************************/
706 1336
707#ifndef EV_HAVE_EV_TIME 1337#ifndef EV_HAVE_EV_TIME
708ev_tstamp 1338ev_tstamp
709ev_time (void) 1339ev_time (void) EV_THROW
710{ 1340{
711#if EV_USE_REALTIME 1341#if EV_USE_REALTIME
712 if (expect_true (have_realtime)) 1342 if (expect_true (have_realtime))
713 { 1343 {
714 struct timespec ts; 1344 struct timespec ts;
… …
738 return ev_time (); 1368 return ev_time ();
739} 1369}
740 1370
741#if EV_MULTIPLICITY 1371#if EV_MULTIPLICITY
742ev_tstamp 1372ev_tstamp
743ev_now (EV_P) 1373ev_now (EV_P) EV_THROW
744{ 1374{
745 return ev_rt_now; 1375 return ev_rt_now;
746} 1376}
747#endif 1377#endif
748 1378
749void 1379void
750ev_sleep (ev_tstamp delay) 1380ev_sleep (ev_tstamp delay) EV_THROW
751{ 1381{
752 if (delay > 0.) 1382 if (delay > 0.)
753 { 1383 {
754#if EV_USE_NANOSLEEP 1384#if EV_USE_NANOSLEEP
755 struct timespec ts; 1385 struct timespec ts;
756 1386
757 ts.tv_sec = (time_t)delay; 1387 EV_TS_SET (ts, delay);
758 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
759
760 nanosleep (&ts, 0); 1388 nanosleep (&ts, 0);
761#elif defined(_WIN32) 1389#elif defined _WIN32
762 Sleep ((unsigned long)(delay * 1e3)); 1390 Sleep ((unsigned long)(delay * 1e3));
763#else 1391#else
764 struct timeval tv; 1392 struct timeval tv;
765 1393
766 tv.tv_sec = (time_t)delay;
767 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
768
769 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1394 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
770 /* something not guaranteed by newer posix versions, but guaranteed */ 1395 /* something not guaranteed by newer posix versions, but guaranteed */
771 /* by older ones */ 1396 /* by older ones */
1397 EV_TV_SET (tv, delay);
772 select (0, 0, 0, 0, &tv); 1398 select (0, 0, 0, 0, &tv);
773#endif 1399#endif
774 } 1400 }
775} 1401}
776 1402
777/*****************************************************************************/ 1403/*****************************************************************************/
778 1404
779#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1405#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
780 1406
781/* find a suitable new size for the given array, */ 1407/* find a suitable new size for the given array, */
782/* hopefully by rounding to a ncie-to-malloc size */ 1408/* hopefully by rounding to a nice-to-malloc size */
783inline_size int 1409inline_size int
784array_nextsize (int elem, int cur, int cnt) 1410array_nextsize (int elem, int cur, int cnt)
785{ 1411{
786 int ncur = cur + 1; 1412 int ncur = cur + 1;
787 1413
788 do 1414 do
789 ncur <<= 1; 1415 ncur <<= 1;
790 while (cnt > ncur); 1416 while (cnt > ncur);
791 1417
792 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1418 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
793 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1419 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
794 { 1420 {
795 ncur *= elem; 1421 ncur *= elem;
796 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1422 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
797 ncur = ncur - sizeof (void *) * 4; 1423 ncur = ncur - sizeof (void *) * 4;
… …
799 } 1425 }
800 1426
801 return ncur; 1427 return ncur;
802} 1428}
803 1429
804static noinline void * 1430static void * noinline ecb_cold
805array_realloc (int elem, void *base, int *cur, int cnt) 1431array_realloc (int elem, void *base, int *cur, int cnt)
806{ 1432{
807 *cur = array_nextsize (elem, *cur, cnt); 1433 *cur = array_nextsize (elem, *cur, cnt);
808 return ev_realloc (base, elem * *cur); 1434 return ev_realloc (base, elem * *cur);
809} 1435}
… …
812 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1438 memset ((void *)(base), 0, sizeof (*(base)) * (count))
813 1439
814#define array_needsize(type,base,cur,cnt,init) \ 1440#define array_needsize(type,base,cur,cnt,init) \
815 if (expect_false ((cnt) > (cur))) \ 1441 if (expect_false ((cnt) > (cur))) \
816 { \ 1442 { \
817 int ocur_ = (cur); \ 1443 int ecb_unused ocur_ = (cur); \
818 (base) = (type *)array_realloc \ 1444 (base) = (type *)array_realloc \
819 (sizeof (type), (base), &(cur), (cnt)); \ 1445 (sizeof (type), (base), &(cur), (cnt)); \
820 init ((base) + (ocur_), (cur) - ocur_); \ 1446 init ((base) + (ocur_), (cur) - ocur_); \
821 } 1447 }
822 1448
… …
840pendingcb (EV_P_ ev_prepare *w, int revents) 1466pendingcb (EV_P_ ev_prepare *w, int revents)
841{ 1467{
842} 1468}
843 1469
844void noinline 1470void noinline
845ev_feed_event (EV_P_ void *w, int revents) 1471ev_feed_event (EV_P_ void *w, int revents) EV_THROW
846{ 1472{
847 W w_ = (W)w; 1473 W w_ = (W)w;
848 int pri = ABSPRI (w_); 1474 int pri = ABSPRI (w_);
849 1475
850 if (expect_false (w_->pending)) 1476 if (expect_false (w_->pending))
… …
854 w_->pending = ++pendingcnt [pri]; 1480 w_->pending = ++pendingcnt [pri];
855 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1481 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
856 pendings [pri][w_->pending - 1].w = w_; 1482 pendings [pri][w_->pending - 1].w = w_;
857 pendings [pri][w_->pending - 1].events = revents; 1483 pendings [pri][w_->pending - 1].events = revents;
858 } 1484 }
1485
1486 pendingpri = NUMPRI - 1;
859} 1487}
860 1488
861inline_speed void 1489inline_speed void
862feed_reverse (EV_P_ W w) 1490feed_reverse (EV_P_ W w)
863{ 1491{
… …
909 if (expect_true (!anfd->reify)) 1537 if (expect_true (!anfd->reify))
910 fd_event_nocheck (EV_A_ fd, revents); 1538 fd_event_nocheck (EV_A_ fd, revents);
911} 1539}
912 1540
913void 1541void
914ev_feed_fd_event (EV_P_ int fd, int revents) 1542ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
915{ 1543{
916 if (fd >= 0 && fd < anfdmax) 1544 if (fd >= 0 && fd < anfdmax)
917 fd_event_nocheck (EV_A_ fd, revents); 1545 fd_event_nocheck (EV_A_ fd, revents);
918} 1546}
919 1547
… …
922inline_size void 1550inline_size void
923fd_reify (EV_P) 1551fd_reify (EV_P)
924{ 1552{
925 int i; 1553 int i;
926 1554
1555#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1556 for (i = 0; i < fdchangecnt; ++i)
1557 {
1558 int fd = fdchanges [i];
1559 ANFD *anfd = anfds + fd;
1560
1561 if (anfd->reify & EV__IOFDSET && anfd->head)
1562 {
1563 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1564
1565 if (handle != anfd->handle)
1566 {
1567 unsigned long arg;
1568
1569 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1570
1571 /* handle changed, but fd didn't - we need to do it in two steps */
1572 backend_modify (EV_A_ fd, anfd->events, 0);
1573 anfd->events = 0;
1574 anfd->handle = handle;
1575 }
1576 }
1577 }
1578#endif
1579
927 for (i = 0; i < fdchangecnt; ++i) 1580 for (i = 0; i < fdchangecnt; ++i)
928 { 1581 {
929 int fd = fdchanges [i]; 1582 int fd = fdchanges [i];
930 ANFD *anfd = anfds + fd; 1583 ANFD *anfd = anfds + fd;
931 ev_io *w; 1584 ev_io *w;
932 1585
933 unsigned char events = 0; 1586 unsigned char o_events = anfd->events;
1587 unsigned char o_reify = anfd->reify;
934 1588
935 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1589 anfd->reify = 0;
936 events |= (unsigned char)w->events;
937 1590
938#if EV_SELECT_IS_WINSOCKET 1591 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
939 if (events)
940 { 1592 {
941 unsigned long arg; 1593 anfd->events = 0;
942 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1594
943 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1595 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1596 anfd->events |= (unsigned char)w->events;
1597
1598 if (o_events != anfd->events)
1599 o_reify = EV__IOFDSET; /* actually |= */
944 } 1600 }
945#endif
946 1601
947 { 1602 if (o_reify & EV__IOFDSET)
948 unsigned char o_events = anfd->events;
949 unsigned char o_reify = anfd->reify;
950
951 anfd->reify = 0;
952 anfd->events = events;
953
954 if (o_events != events || o_reify & EV__IOFDSET)
955 backend_modify (EV_A_ fd, o_events, events); 1603 backend_modify (EV_A_ fd, o_events, anfd->events);
956 }
957 } 1604 }
958 1605
959 fdchangecnt = 0; 1606 fdchangecnt = 0;
960} 1607}
961 1608
… …
973 fdchanges [fdchangecnt - 1] = fd; 1620 fdchanges [fdchangecnt - 1] = fd;
974 } 1621 }
975} 1622}
976 1623
977/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1624/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
978inline_speed void 1625inline_speed void ecb_cold
979fd_kill (EV_P_ int fd) 1626fd_kill (EV_P_ int fd)
980{ 1627{
981 ev_io *w; 1628 ev_io *w;
982 1629
983 while ((w = (ev_io *)anfds [fd].head)) 1630 while ((w = (ev_io *)anfds [fd].head))
… …
986 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1633 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
987 } 1634 }
988} 1635}
989 1636
990/* check whether the given fd is actually valid, for error recovery */ 1637/* check whether the given fd is actually valid, for error recovery */
991inline_size int 1638inline_size int ecb_cold
992fd_valid (int fd) 1639fd_valid (int fd)
993{ 1640{
994#ifdef _WIN32 1641#ifdef _WIN32
995 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1642 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
996#else 1643#else
997 return fcntl (fd, F_GETFD) != -1; 1644 return fcntl (fd, F_GETFD) != -1;
998#endif 1645#endif
999} 1646}
1000 1647
1001/* called on EBADF to verify fds */ 1648/* called on EBADF to verify fds */
1002static void noinline 1649static void noinline ecb_cold
1003fd_ebadf (EV_P) 1650fd_ebadf (EV_P)
1004{ 1651{
1005 int fd; 1652 int fd;
1006 1653
1007 for (fd = 0; fd < anfdmax; ++fd) 1654 for (fd = 0; fd < anfdmax; ++fd)
… …
1009 if (!fd_valid (fd) && errno == EBADF) 1656 if (!fd_valid (fd) && errno == EBADF)
1010 fd_kill (EV_A_ fd); 1657 fd_kill (EV_A_ fd);
1011} 1658}
1012 1659
1013/* called on ENOMEM in select/poll to kill some fds and retry */ 1660/* called on ENOMEM in select/poll to kill some fds and retry */
1014static void noinline 1661static void noinline ecb_cold
1015fd_enomem (EV_P) 1662fd_enomem (EV_P)
1016{ 1663{
1017 int fd; 1664 int fd;
1018 1665
1019 for (fd = anfdmax; fd--; ) 1666 for (fd = anfdmax; fd--; )
… …
1054} 1701}
1055 1702
1056/*****************************************************************************/ 1703/*****************************************************************************/
1057 1704
1058/* 1705/*
1059 * the heap functions want a real array index. array index 0 uis guaranteed to not 1706 * the heap functions want a real array index. array index 0 is guaranteed to not
1060 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1707 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1061 * the branching factor of the d-tree. 1708 * the branching factor of the d-tree.
1062 */ 1709 */
1063 1710
1064/* 1711/*
… …
1214 1861
1215/*****************************************************************************/ 1862/*****************************************************************************/
1216 1863
1217#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 1864#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1218 1865
1219static void noinline 1866static void noinline ecb_cold
1220evpipe_init (EV_P) 1867evpipe_init (EV_P)
1221{ 1868{
1222 if (!ev_is_active (&pipe_w)) 1869 if (!ev_is_active (&pipe_w))
1223 { 1870 {
1224# if EV_USE_EVENTFD 1871# if EV_USE_EVENTFD
… …
1246 ev_io_start (EV_A_ &pipe_w); 1893 ev_io_start (EV_A_ &pipe_w);
1247 ev_unref (EV_A); /* watcher should not keep loop alive */ 1894 ev_unref (EV_A); /* watcher should not keep loop alive */
1248 } 1895 }
1249} 1896}
1250 1897
1251inline_size void 1898inline_speed void
1252evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1899evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1253{ 1900{
1254 if (!*flag) 1901 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1902
1903 if (expect_true (*flag))
1904 return;
1905
1906 *flag = 1;
1907 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1908
1909 pipe_write_skipped = 1;
1910
1911 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1912
1913 if (pipe_write_wanted)
1255 { 1914 {
1915 int old_errno;
1916
1917 pipe_write_skipped = 0;
1918 ECB_MEMORY_FENCE_RELEASE;
1919
1256 int old_errno = errno; /* save errno because write might clobber it */ 1920 old_errno = errno; /* save errno because write will clobber it */
1257 char dummy;
1258
1259 *flag = 1;
1260 1921
1261#if EV_USE_EVENTFD 1922#if EV_USE_EVENTFD
1262 if (evfd >= 0) 1923 if (evfd >= 0)
1263 { 1924 {
1264 uint64_t counter = 1; 1925 uint64_t counter = 1;
1265 write (evfd, &counter, sizeof (uint64_t)); 1926 write (evfd, &counter, sizeof (uint64_t));
1266 } 1927 }
1267 else 1928 else
1268#endif 1929#endif
1930 {
1931#ifdef _WIN32
1932 WSABUF buf;
1933 DWORD sent;
1934 buf.buf = &buf;
1935 buf.len = 1;
1936 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1937#else
1269 write (evpipe [1], &dummy, 1); 1938 write (evpipe [1], &(evpipe [1]), 1);
1939#endif
1940 }
1270 1941
1271 errno = old_errno; 1942 errno = old_errno;
1272 } 1943 }
1273} 1944}
1274 1945
… …
1277static void 1948static void
1278pipecb (EV_P_ ev_io *iow, int revents) 1949pipecb (EV_P_ ev_io *iow, int revents)
1279{ 1950{
1280 int i; 1951 int i;
1281 1952
1953 if (revents & EV_READ)
1954 {
1282#if EV_USE_EVENTFD 1955#if EV_USE_EVENTFD
1283 if (evfd >= 0) 1956 if (evfd >= 0)
1284 { 1957 {
1285 uint64_t counter; 1958 uint64_t counter;
1286 read (evfd, &counter, sizeof (uint64_t)); 1959 read (evfd, &counter, sizeof (uint64_t));
1287 } 1960 }
1288 else 1961 else
1289#endif 1962#endif
1290 { 1963 {
1291 char dummy; 1964 char dummy[4];
1965#ifdef _WIN32
1966 WSABUF buf;
1967 DWORD recvd;
1968 DWORD flags = 0;
1969 buf.buf = dummy;
1970 buf.len = sizeof (dummy);
1971 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1972#else
1292 read (evpipe [0], &dummy, 1); 1973 read (evpipe [0], &dummy, sizeof (dummy));
1974#endif
1975 }
1293 } 1976 }
1294 1977
1978 pipe_write_skipped = 0;
1979
1980 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1981
1982#if EV_SIGNAL_ENABLE
1295 if (sig_pending) 1983 if (sig_pending)
1296 { 1984 {
1297 sig_pending = 0; 1985 sig_pending = 0;
1986
1987 ECB_MEMORY_FENCE;
1298 1988
1299 for (i = EV_NSIG - 1; i--; ) 1989 for (i = EV_NSIG - 1; i--; )
1300 if (expect_false (signals [i].pending)) 1990 if (expect_false (signals [i].pending))
1301 ev_feed_signal_event (EV_A_ i + 1); 1991 ev_feed_signal_event (EV_A_ i + 1);
1302 } 1992 }
1993#endif
1303 1994
1304#if EV_ASYNC_ENABLE 1995#if EV_ASYNC_ENABLE
1305 if (async_pending) 1996 if (async_pending)
1306 { 1997 {
1307 async_pending = 0; 1998 async_pending = 0;
1999
2000 ECB_MEMORY_FENCE;
1308 2001
1309 for (i = asynccnt; i--; ) 2002 for (i = asynccnt; i--; )
1310 if (asyncs [i]->sent) 2003 if (asyncs [i]->sent)
1311 { 2004 {
1312 asyncs [i]->sent = 0; 2005 asyncs [i]->sent = 0;
2006 ECB_MEMORY_FENCE_RELEASE;
1313 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2007 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1314 } 2008 }
1315 } 2009 }
1316#endif 2010#endif
1317} 2011}
1318 2012
1319/*****************************************************************************/ 2013/*****************************************************************************/
1320 2014
2015void
2016ev_feed_signal (int signum) EV_THROW
2017{
2018#if EV_MULTIPLICITY
2019 EV_P = signals [signum - 1].loop;
2020
2021 if (!EV_A)
2022 return;
2023#endif
2024
2025 if (!ev_active (&pipe_w))
2026 return;
2027
2028 signals [signum - 1].pending = 1;
2029 evpipe_write (EV_A_ &sig_pending);
2030}
2031
1321static void 2032static void
1322ev_sighandler (int signum) 2033ev_sighandler (int signum)
1323{ 2034{
1324#if EV_MULTIPLICITY
1325 EV_P = signals [signum - 1].loop;
1326#endif
1327
1328#ifdef _WIN32 2035#ifdef _WIN32
1329 signal (signum, ev_sighandler); 2036 signal (signum, ev_sighandler);
1330#endif 2037#endif
1331 2038
1332 signals [signum - 1].pending = 1; 2039 ev_feed_signal (signum);
1333 evpipe_write (EV_A_ &sig_pending);
1334} 2040}
1335 2041
1336void noinline 2042void noinline
1337ev_feed_signal_event (EV_P_ int signum) 2043ev_feed_signal_event (EV_P_ int signum) EV_THROW
1338{ 2044{
1339 WL w; 2045 WL w;
1340 2046
1341 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2047 if (expect_false (signum <= 0 || signum > EV_NSIG))
1342 return; 2048 return;
… …
1350 if (expect_false (signals [signum].loop != EV_A)) 2056 if (expect_false (signals [signum].loop != EV_A))
1351 return; 2057 return;
1352#endif 2058#endif
1353 2059
1354 signals [signum].pending = 0; 2060 signals [signum].pending = 0;
2061 ECB_MEMORY_FENCE_RELEASE;
1355 2062
1356 for (w = signals [signum].head; w; w = w->next) 2063 for (w = signals [signum].head; w; w = w->next)
1357 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2064 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1358} 2065}
1359 2066
… …
1438 2145
1439#endif 2146#endif
1440 2147
1441/*****************************************************************************/ 2148/*****************************************************************************/
1442 2149
2150#if EV_USE_IOCP
2151# include "ev_iocp.c"
2152#endif
1443#if EV_USE_PORT 2153#if EV_USE_PORT
1444# include "ev_port.c" 2154# include "ev_port.c"
1445#endif 2155#endif
1446#if EV_USE_KQUEUE 2156#if EV_USE_KQUEUE
1447# include "ev_kqueue.c" 2157# include "ev_kqueue.c"
… …
1454#endif 2164#endif
1455#if EV_USE_SELECT 2165#if EV_USE_SELECT
1456# include "ev_select.c" 2166# include "ev_select.c"
1457#endif 2167#endif
1458 2168
1459int 2169int ecb_cold
1460ev_version_major (void) 2170ev_version_major (void) EV_THROW
1461{ 2171{
1462 return EV_VERSION_MAJOR; 2172 return EV_VERSION_MAJOR;
1463} 2173}
1464 2174
1465int 2175int ecb_cold
1466ev_version_minor (void) 2176ev_version_minor (void) EV_THROW
1467{ 2177{
1468 return EV_VERSION_MINOR; 2178 return EV_VERSION_MINOR;
1469} 2179}
1470 2180
1471/* return true if we are running with elevated privileges and should ignore env variables */ 2181/* return true if we are running with elevated privileges and should ignore env variables */
1472int inline_size 2182int inline_size ecb_cold
1473enable_secure (void) 2183enable_secure (void)
1474{ 2184{
1475#ifdef _WIN32 2185#ifdef _WIN32
1476 return 0; 2186 return 0;
1477#else 2187#else
1478 return getuid () != geteuid () 2188 return getuid () != geteuid ()
1479 || getgid () != getegid (); 2189 || getgid () != getegid ();
1480#endif 2190#endif
1481} 2191}
1482 2192
1483unsigned int 2193unsigned int ecb_cold
1484ev_supported_backends (void) 2194ev_supported_backends (void) EV_THROW
1485{ 2195{
1486 unsigned int flags = 0; 2196 unsigned int flags = 0;
1487 2197
1488 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2198 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1489 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2199 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1492 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2202 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1493 2203
1494 return flags; 2204 return flags;
1495} 2205}
1496 2206
1497unsigned int 2207unsigned int ecb_cold
1498ev_recommended_backends (void) 2208ev_recommended_backends (void) EV_THROW
1499{ 2209{
1500 unsigned int flags = ev_supported_backends (); 2210 unsigned int flags = ev_supported_backends ();
1501 2211
1502#ifndef __NetBSD__ 2212#ifndef __NetBSD__
1503 /* kqueue is borked on everything but netbsd apparently */ 2213 /* kqueue is borked on everything but netbsd apparently */
… …
1514#endif 2224#endif
1515 2225
1516 return flags; 2226 return flags;
1517} 2227}
1518 2228
2229unsigned int ecb_cold
2230ev_embeddable_backends (void) EV_THROW
2231{
2232 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2233
2234 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2235 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2236 flags &= ~EVBACKEND_EPOLL;
2237
2238 return flags;
2239}
2240
1519unsigned int 2241unsigned int
1520ev_embeddable_backends (void)
1521{
1522 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1523
1524 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1525 /* please fix it and tell me how to detect the fix */
1526 flags &= ~EVBACKEND_EPOLL;
1527
1528 return flags;
1529}
1530
1531unsigned int
1532ev_backend (EV_P) 2242ev_backend (EV_P) EV_THROW
1533{ 2243{
1534 return backend; 2244 return backend;
1535} 2245}
1536 2246
1537#if EV_FEATURE_API 2247#if EV_FEATURE_API
1538unsigned int 2248unsigned int
1539ev_iteration (EV_P) 2249ev_iteration (EV_P) EV_THROW
1540{ 2250{
1541 return loop_count; 2251 return loop_count;
1542} 2252}
1543 2253
1544unsigned int 2254unsigned int
1545ev_depth (EV_P) 2255ev_depth (EV_P) EV_THROW
1546{ 2256{
1547 return loop_depth; 2257 return loop_depth;
1548} 2258}
1549 2259
1550void 2260void
1551ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2261ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1552{ 2262{
1553 io_blocktime = interval; 2263 io_blocktime = interval;
1554} 2264}
1555 2265
1556void 2266void
1557ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2267ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1558{ 2268{
1559 timeout_blocktime = interval; 2269 timeout_blocktime = interval;
1560} 2270}
1561 2271
1562void 2272void
1563ev_set_userdata (EV_P_ void *data) 2273ev_set_userdata (EV_P_ void *data) EV_THROW
1564{ 2274{
1565 userdata = data; 2275 userdata = data;
1566} 2276}
1567 2277
1568void * 2278void *
1569ev_userdata (EV_P) 2279ev_userdata (EV_P) EV_THROW
1570{ 2280{
1571 return userdata; 2281 return userdata;
1572} 2282}
1573 2283
2284void
1574void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2285ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1575{ 2286{
1576 invoke_cb = invoke_pending_cb; 2287 invoke_cb = invoke_pending_cb;
1577} 2288}
1578 2289
2290void
1579void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2291ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1580{ 2292{
1581 release_cb = release; 2293 release_cb = release;
1582 acquire_cb = acquire; 2294 acquire_cb = acquire;
1583} 2295}
1584#endif 2296#endif
1585 2297
1586/* initialise a loop structure, must be zero-initialised */ 2298/* initialise a loop structure, must be zero-initialised */
1587static void noinline 2299static void noinline ecb_cold
1588loop_init (EV_P_ unsigned int flags) 2300loop_init (EV_P_ unsigned int flags) EV_THROW
1589{ 2301{
1590 if (!backend) 2302 if (!backend)
1591 { 2303 {
2304 origflags = flags;
2305
1592#if EV_USE_REALTIME 2306#if EV_USE_REALTIME
1593 if (!have_realtime) 2307 if (!have_realtime)
1594 { 2308 {
1595 struct timespec ts; 2309 struct timespec ts;
1596 2310
… …
1618 if (!(flags & EVFLAG_NOENV) 2332 if (!(flags & EVFLAG_NOENV)
1619 && !enable_secure () 2333 && !enable_secure ()
1620 && getenv ("LIBEV_FLAGS")) 2334 && getenv ("LIBEV_FLAGS"))
1621 flags = atoi (getenv ("LIBEV_FLAGS")); 2335 flags = atoi (getenv ("LIBEV_FLAGS"));
1622 2336
1623 ev_rt_now = ev_time (); 2337 ev_rt_now = ev_time ();
1624 mn_now = get_clock (); 2338 mn_now = get_clock ();
1625 now_floor = mn_now; 2339 now_floor = mn_now;
1626 rtmn_diff = ev_rt_now - mn_now; 2340 rtmn_diff = ev_rt_now - mn_now;
1627#if EV_FEATURE_API 2341#if EV_FEATURE_API
1628 invoke_cb = ev_invoke_pending; 2342 invoke_cb = ev_invoke_pending;
1629#endif 2343#endif
1630 2344
1631 io_blocktime = 0.; 2345 io_blocktime = 0.;
1632 timeout_blocktime = 0.; 2346 timeout_blocktime = 0.;
1633 backend = 0; 2347 backend = 0;
1634 backend_fd = -1; 2348 backend_fd = -1;
1635 sig_pending = 0; 2349 sig_pending = 0;
1636#if EV_ASYNC_ENABLE 2350#if EV_ASYNC_ENABLE
1637 async_pending = 0; 2351 async_pending = 0;
1638#endif 2352#endif
2353 pipe_write_skipped = 0;
2354 pipe_write_wanted = 0;
1639#if EV_USE_INOTIFY 2355#if EV_USE_INOTIFY
1640 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2356 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1641#endif 2357#endif
1642#if EV_USE_SIGNALFD 2358#if EV_USE_SIGNALFD
1643 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2359 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1644#endif 2360#endif
1645 2361
1646 if (!(flags & 0x0000ffffU)) 2362 if (!(flags & EVBACKEND_MASK))
1647 flags |= ev_recommended_backends (); 2363 flags |= ev_recommended_backends ();
1648 2364
2365#if EV_USE_IOCP
2366 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2367#endif
1649#if EV_USE_PORT 2368#if EV_USE_PORT
1650 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2369 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1651#endif 2370#endif
1652#if EV_USE_KQUEUE 2371#if EV_USE_KQUEUE
1653 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2372 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1670#endif 2389#endif
1671 } 2390 }
1672} 2391}
1673 2392
1674/* free up a loop structure */ 2393/* free up a loop structure */
1675static void noinline 2394void ecb_cold
1676loop_destroy (EV_P) 2395ev_loop_destroy (EV_P)
1677{ 2396{
1678 int i; 2397 int i;
2398
2399#if EV_MULTIPLICITY
2400 /* mimic free (0) */
2401 if (!EV_A)
2402 return;
2403#endif
2404
2405#if EV_CLEANUP_ENABLE
2406 /* queue cleanup watchers (and execute them) */
2407 if (expect_false (cleanupcnt))
2408 {
2409 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2410 EV_INVOKE_PENDING;
2411 }
2412#endif
2413
2414#if EV_CHILD_ENABLE
2415 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2416 {
2417 ev_ref (EV_A); /* child watcher */
2418 ev_signal_stop (EV_A_ &childev);
2419 }
2420#endif
1679 2421
1680 if (ev_is_active (&pipe_w)) 2422 if (ev_is_active (&pipe_w))
1681 { 2423 {
1682 /*ev_ref (EV_A);*/ 2424 /*ev_ref (EV_A);*/
1683 /*ev_io_stop (EV_A_ &pipe_w);*/ 2425 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1705#endif 2447#endif
1706 2448
1707 if (backend_fd >= 0) 2449 if (backend_fd >= 0)
1708 close (backend_fd); 2450 close (backend_fd);
1709 2451
2452#if EV_USE_IOCP
2453 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2454#endif
1710#if EV_USE_PORT 2455#if EV_USE_PORT
1711 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2456 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1712#endif 2457#endif
1713#if EV_USE_KQUEUE 2458#if EV_USE_KQUEUE
1714 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2459 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1741 array_free (periodic, EMPTY); 2486 array_free (periodic, EMPTY);
1742#endif 2487#endif
1743#if EV_FORK_ENABLE 2488#if EV_FORK_ENABLE
1744 array_free (fork, EMPTY); 2489 array_free (fork, EMPTY);
1745#endif 2490#endif
2491#if EV_CLEANUP_ENABLE
2492 array_free (cleanup, EMPTY);
2493#endif
1746 array_free (prepare, EMPTY); 2494 array_free (prepare, EMPTY);
1747 array_free (check, EMPTY); 2495 array_free (check, EMPTY);
1748#if EV_ASYNC_ENABLE 2496#if EV_ASYNC_ENABLE
1749 array_free (async, EMPTY); 2497 array_free (async, EMPTY);
1750#endif 2498#endif
1751 2499
1752 backend = 0; 2500 backend = 0;
2501
2502#if EV_MULTIPLICITY
2503 if (ev_is_default_loop (EV_A))
2504#endif
2505 ev_default_loop_ptr = 0;
2506#if EV_MULTIPLICITY
2507 else
2508 ev_free (EV_A);
2509#endif
1753} 2510}
1754 2511
1755#if EV_USE_INOTIFY 2512#if EV_USE_INOTIFY
1756inline_size void infy_fork (EV_P); 2513inline_size void infy_fork (EV_P);
1757#endif 2514#endif
… …
1772 infy_fork (EV_A); 2529 infy_fork (EV_A);
1773#endif 2530#endif
1774 2531
1775 if (ev_is_active (&pipe_w)) 2532 if (ev_is_active (&pipe_w))
1776 { 2533 {
1777 /* this "locks" the handlers against writing to the pipe */ 2534 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1778 /* while we modify the fd vars */
1779 sig_pending = 1;
1780#if EV_ASYNC_ENABLE
1781 async_pending = 1;
1782#endif
1783 2535
1784 ev_ref (EV_A); 2536 ev_ref (EV_A);
1785 ev_io_stop (EV_A_ &pipe_w); 2537 ev_io_stop (EV_A_ &pipe_w);
1786 2538
1787#if EV_USE_EVENTFD 2539#if EV_USE_EVENTFD
… …
1805 postfork = 0; 2557 postfork = 0;
1806} 2558}
1807 2559
1808#if EV_MULTIPLICITY 2560#if EV_MULTIPLICITY
1809 2561
1810struct ev_loop * 2562struct ev_loop * ecb_cold
1811ev_loop_new (unsigned int flags) 2563ev_loop_new (unsigned int flags) EV_THROW
1812{ 2564{
1813 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2565 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1814 2566
1815 memset (EV_A, 0, sizeof (struct ev_loop)); 2567 memset (EV_A, 0, sizeof (struct ev_loop));
1816 loop_init (EV_A_ flags); 2568 loop_init (EV_A_ flags);
1817 2569
1818 if (ev_backend (EV_A)) 2570 if (ev_backend (EV_A))
1819 return EV_A; 2571 return EV_A;
1820 2572
2573 ev_free (EV_A);
1821 return 0; 2574 return 0;
1822} 2575}
1823 2576
1824void
1825ev_loop_destroy (EV_P)
1826{
1827 loop_destroy (EV_A);
1828 ev_free (loop);
1829}
1830
1831void
1832ev_loop_fork (EV_P)
1833{
1834 postfork = 1; /* must be in line with ev_default_fork */
1835}
1836#endif /* multiplicity */ 2577#endif /* multiplicity */
1837 2578
1838#if EV_VERIFY 2579#if EV_VERIFY
1839static void noinline 2580static void noinline ecb_cold
1840verify_watcher (EV_P_ W w) 2581verify_watcher (EV_P_ W w)
1841{ 2582{
1842 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2583 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1843 2584
1844 if (w->pending) 2585 if (w->pending)
1845 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2586 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1846} 2587}
1847 2588
1848static void noinline 2589static void noinline ecb_cold
1849verify_heap (EV_P_ ANHE *heap, int N) 2590verify_heap (EV_P_ ANHE *heap, int N)
1850{ 2591{
1851 int i; 2592 int i;
1852 2593
1853 for (i = HEAP0; i < N + HEAP0; ++i) 2594 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1858 2599
1859 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2600 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1860 } 2601 }
1861} 2602}
1862 2603
1863static void noinline 2604static void noinline ecb_cold
1864array_verify (EV_P_ W *ws, int cnt) 2605array_verify (EV_P_ W *ws, int cnt)
1865{ 2606{
1866 while (cnt--) 2607 while (cnt--)
1867 { 2608 {
1868 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2609 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
1870 } 2611 }
1871} 2612}
1872#endif 2613#endif
1873 2614
1874#if EV_FEATURE_API 2615#if EV_FEATURE_API
1875void 2616void ecb_cold
1876ev_verify (EV_P) 2617ev_verify (EV_P) EV_THROW
1877{ 2618{
1878#if EV_VERIFY 2619#if EV_VERIFY
1879 int i; 2620 int i;
1880 WL w; 2621 WL w, w2;
1881 2622
1882 assert (activecnt >= -1); 2623 assert (activecnt >= -1);
1883 2624
1884 assert (fdchangemax >= fdchangecnt); 2625 assert (fdchangemax >= fdchangecnt);
1885 for (i = 0; i < fdchangecnt; ++i) 2626 for (i = 0; i < fdchangecnt; ++i)
1886 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2627 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1887 2628
1888 assert (anfdmax >= 0); 2629 assert (anfdmax >= 0);
1889 for (i = 0; i < anfdmax; ++i) 2630 for (i = 0; i < anfdmax; ++i)
2631 {
2632 int j = 0;
2633
1890 for (w = anfds [i].head; w; w = w->next) 2634 for (w = w2 = anfds [i].head; w; w = w->next)
1891 { 2635 {
1892 verify_watcher (EV_A_ (W)w); 2636 verify_watcher (EV_A_ (W)w);
2637
2638 if (j++ & 1)
2639 {
2640 assert (("libev: io watcher list contains a loop", w != w2));
2641 w2 = w2->next;
2642 }
2643
1893 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2644 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)); 2645 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1895 } 2646 }
2647 }
1896 2648
1897 assert (timermax >= timercnt); 2649 assert (timermax >= timercnt);
1898 verify_heap (EV_A_ timers, timercnt); 2650 verify_heap (EV_A_ timers, timercnt);
1899 2651
1900#if EV_PERIODIC_ENABLE 2652#if EV_PERIODIC_ENABLE
… …
1915#if EV_FORK_ENABLE 2667#if EV_FORK_ENABLE
1916 assert (forkmax >= forkcnt); 2668 assert (forkmax >= forkcnt);
1917 array_verify (EV_A_ (W *)forks, forkcnt); 2669 array_verify (EV_A_ (W *)forks, forkcnt);
1918#endif 2670#endif
1919 2671
2672#if EV_CLEANUP_ENABLE
2673 assert (cleanupmax >= cleanupcnt);
2674 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2675#endif
2676
1920#if EV_ASYNC_ENABLE 2677#if EV_ASYNC_ENABLE
1921 assert (asyncmax >= asynccnt); 2678 assert (asyncmax >= asynccnt);
1922 array_verify (EV_A_ (W *)asyncs, asynccnt); 2679 array_verify (EV_A_ (W *)asyncs, asynccnt);
1923#endif 2680#endif
1924 2681
… …
1941#endif 2698#endif
1942} 2699}
1943#endif 2700#endif
1944 2701
1945#if EV_MULTIPLICITY 2702#if EV_MULTIPLICITY
1946struct ev_loop * 2703struct ev_loop * ecb_cold
1947ev_default_loop_init (unsigned int flags)
1948#else 2704#else
1949int 2705int
2706#endif
1950ev_default_loop (unsigned int flags) 2707ev_default_loop (unsigned int flags) EV_THROW
1951#endif
1952{ 2708{
1953 if (!ev_default_loop_ptr) 2709 if (!ev_default_loop_ptr)
1954 { 2710 {
1955#if EV_MULTIPLICITY 2711#if EV_MULTIPLICITY
1956 EV_P = ev_default_loop_ptr = &default_loop_struct; 2712 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1975 2731
1976 return ev_default_loop_ptr; 2732 return ev_default_loop_ptr;
1977} 2733}
1978 2734
1979void 2735void
1980ev_default_destroy (void) 2736ev_loop_fork (EV_P) EV_THROW
1981{ 2737{
1982#if EV_MULTIPLICITY 2738 postfork = 1;
1983 EV_P = ev_default_loop_ptr;
1984#endif
1985
1986 ev_default_loop_ptr = 0;
1987
1988#if EV_CHILD_ENABLE
1989 ev_ref (EV_A); /* child watcher */
1990 ev_signal_stop (EV_A_ &childev);
1991#endif
1992
1993 loop_destroy (EV_A);
1994}
1995
1996void
1997ev_default_fork (void)
1998{
1999#if EV_MULTIPLICITY
2000 EV_P = ev_default_loop_ptr;
2001#endif
2002
2003 postfork = 1; /* must be in line with ev_loop_fork */
2004} 2739}
2005 2740
2006/*****************************************************************************/ 2741/*****************************************************************************/
2007 2742
2008void 2743void
… …
2010{ 2745{
2011 EV_CB_INVOKE ((W)w, revents); 2746 EV_CB_INVOKE ((W)w, revents);
2012} 2747}
2013 2748
2014unsigned int 2749unsigned int
2015ev_pending_count (EV_P) 2750ev_pending_count (EV_P) EV_THROW
2016{ 2751{
2017 int pri; 2752 int pri;
2018 unsigned int count = 0; 2753 unsigned int count = 0;
2019 2754
2020 for (pri = NUMPRI; pri--; ) 2755 for (pri = NUMPRI; pri--; )
… …
2024} 2759}
2025 2760
2026void noinline 2761void noinline
2027ev_invoke_pending (EV_P) 2762ev_invoke_pending (EV_P)
2028{ 2763{
2029 int pri; 2764 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2030
2031 for (pri = NUMPRI; pri--; )
2032 while (pendingcnt [pri]) 2765 while (pendingcnt [pendingpri])
2033 { 2766 {
2034 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2767 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2035
2036 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2037 /* ^ this is no longer true, as pending_w could be here */
2038 2768
2039 p->w->pending = 0; 2769 p->w->pending = 0;
2040 EV_CB_INVOKE (p->w, p->events); 2770 EV_CB_INVOKE (p->w, p->events);
2041 EV_FREQUENT_CHECK; 2771 EV_FREQUENT_CHECK;
2042 } 2772 }
… …
2104 feed_reverse_done (EV_A_ EV_TIMER); 2834 feed_reverse_done (EV_A_ EV_TIMER);
2105 } 2835 }
2106} 2836}
2107 2837
2108#if EV_PERIODIC_ENABLE 2838#if EV_PERIODIC_ENABLE
2839
2840static void noinline
2841periodic_recalc (EV_P_ ev_periodic *w)
2842{
2843 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2844 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2845
2846 /* the above almost always errs on the low side */
2847 while (at <= ev_rt_now)
2848 {
2849 ev_tstamp nat = at + w->interval;
2850
2851 /* when resolution fails us, we use ev_rt_now */
2852 if (expect_false (nat == at))
2853 {
2854 at = ev_rt_now;
2855 break;
2856 }
2857
2858 at = nat;
2859 }
2860
2861 ev_at (w) = at;
2862}
2863
2109/* make periodics pending */ 2864/* make periodics pending */
2110inline_size void 2865inline_size void
2111periodics_reify (EV_P) 2866periodics_reify (EV_P)
2112{ 2867{
2113 EV_FREQUENT_CHECK; 2868 EV_FREQUENT_CHECK;
2114 2869
2115 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2870 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2116 { 2871 {
2117 int feed_count = 0;
2118
2119 do 2872 do
2120 { 2873 {
2121 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2874 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2122 2875
2123 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2876 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2132 ANHE_at_cache (periodics [HEAP0]); 2885 ANHE_at_cache (periodics [HEAP0]);
2133 downheap (periodics, periodiccnt, HEAP0); 2886 downheap (periodics, periodiccnt, HEAP0);
2134 } 2887 }
2135 else if (w->interval) 2888 else if (w->interval)
2136 { 2889 {
2137 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2890 periodic_recalc (EV_A_ w);
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]); 2891 ANHE_at_cache (periodics [HEAP0]);
2152 downheap (periodics, periodiccnt, HEAP0); 2892 downheap (periodics, periodiccnt, HEAP0);
2153 } 2893 }
2154 else 2894 else
2155 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2895 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2162 feed_reverse_done (EV_A_ EV_PERIODIC); 2902 feed_reverse_done (EV_A_ EV_PERIODIC);
2163 } 2903 }
2164} 2904}
2165 2905
2166/* simply recalculate all periodics */ 2906/* simply recalculate all periodics */
2167/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2907/* TODO: maybe ensure that at least one event happens when jumping forward? */
2168static void noinline 2908static void noinline ecb_cold
2169periodics_reschedule (EV_P) 2909periodics_reschedule (EV_P)
2170{ 2910{
2171 int i; 2911 int i;
2172 2912
2173 /* adjust periodics after time jump */ 2913 /* adjust periodics after time jump */
… …
2176 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2916 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2177 2917
2178 if (w->reschedule_cb) 2918 if (w->reschedule_cb)
2179 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2919 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2180 else if (w->interval) 2920 else if (w->interval)
2181 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2921 periodic_recalc (EV_A_ w);
2182 2922
2183 ANHE_at_cache (periodics [i]); 2923 ANHE_at_cache (periodics [i]);
2184 } 2924 }
2185 2925
2186 reheap (periodics, periodiccnt); 2926 reheap (periodics, periodiccnt);
2187} 2927}
2188#endif 2928#endif
2189 2929
2190/* adjust all timers by a given offset */ 2930/* adjust all timers by a given offset */
2191static void noinline 2931static void noinline ecb_cold
2192timers_reschedule (EV_P_ ev_tstamp adjust) 2932timers_reschedule (EV_P_ ev_tstamp adjust)
2193{ 2933{
2194 int i; 2934 int i;
2195 2935
2196 for (i = 0; i < timercnt; ++i) 2936 for (i = 0; i < timercnt; ++i)
… …
2233 * doesn't hurt either as we only do this on time-jumps or 2973 * doesn't hurt either as we only do this on time-jumps or
2234 * in the unlikely event of having been preempted here. 2974 * in the unlikely event of having been preempted here.
2235 */ 2975 */
2236 for (i = 4; --i; ) 2976 for (i = 4; --i; )
2237 { 2977 {
2978 ev_tstamp diff;
2238 rtmn_diff = ev_rt_now - mn_now; 2979 rtmn_diff = ev_rt_now - mn_now;
2239 2980
2981 diff = odiff - rtmn_diff;
2982
2240 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2983 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2241 return; /* all is well */ 2984 return; /* all is well */
2242 2985
2243 ev_rt_now = ev_time (); 2986 ev_rt_now = ev_time ();
2244 mn_now = get_clock (); 2987 mn_now = get_clock ();
2245 now_floor = mn_now; 2988 now_floor = mn_now;
… …
2267 3010
2268 mn_now = ev_rt_now; 3011 mn_now = ev_rt_now;
2269 } 3012 }
2270} 3013}
2271 3014
2272void 3015int
2273ev_loop (EV_P_ int flags) 3016ev_run (EV_P_ int flags)
2274{ 3017{
2275#if EV_FEATURE_API 3018#if EV_FEATURE_API
2276 ++loop_depth; 3019 ++loop_depth;
2277#endif 3020#endif
2278 3021
2279 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 3022 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2280 3023
2281 loop_done = EVUNLOOP_CANCEL; 3024 loop_done = EVBREAK_CANCEL;
2282 3025
2283 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 3026 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2284 3027
2285 do 3028 do
2286 { 3029 {
… …
2329 /* calculate blocking time */ 3072 /* calculate blocking time */
2330 { 3073 {
2331 ev_tstamp waittime = 0.; 3074 ev_tstamp waittime = 0.;
2332 ev_tstamp sleeptime = 0.; 3075 ev_tstamp sleeptime = 0.;
2333 3076
3077 /* remember old timestamp for io_blocktime calculation */
3078 ev_tstamp prev_mn_now = mn_now;
3079
3080 /* update time to cancel out callback processing overhead */
3081 time_update (EV_A_ 1e100);
3082
3083 /* from now on, we want a pipe-wake-up */
3084 pipe_write_wanted = 1;
3085
3086 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3087
2334 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3088 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2335 { 3089 {
2336 /* remember old timestamp for io_blocktime calculation */
2337 ev_tstamp prev_mn_now = mn_now;
2338
2339 /* update time to cancel out callback processing overhead */
2340 time_update (EV_A_ 1e100);
2341
2342 waittime = MAX_BLOCKTIME; 3090 waittime = MAX_BLOCKTIME;
2343 3091
2344 if (timercnt) 3092 if (timercnt)
2345 { 3093 {
2346 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3094 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2347 if (waittime > to) waittime = to; 3095 if (waittime > to) waittime = to;
2348 } 3096 }
2349 3097
2350#if EV_PERIODIC_ENABLE 3098#if EV_PERIODIC_ENABLE
2351 if (periodiccnt) 3099 if (periodiccnt)
2352 { 3100 {
2353 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3101 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2354 if (waittime > to) waittime = to; 3102 if (waittime > to) waittime = to;
2355 } 3103 }
2356#endif 3104#endif
2357 3105
2358 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3106 /* don't let timeouts decrease the waittime below timeout_blocktime */
2359 if (expect_false (waittime < timeout_blocktime)) 3107 if (expect_false (waittime < timeout_blocktime))
2360 waittime = timeout_blocktime; 3108 waittime = timeout_blocktime;
3109
3110 /* at this point, we NEED to wait, so we have to ensure */
3111 /* to pass a minimum nonzero value to the backend */
3112 if (expect_false (waittime < backend_mintime))
3113 waittime = backend_mintime;
2361 3114
2362 /* extra check because io_blocktime is commonly 0 */ 3115 /* extra check because io_blocktime is commonly 0 */
2363 if (expect_false (io_blocktime)) 3116 if (expect_false (io_blocktime))
2364 { 3117 {
2365 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3118 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2366 3119
2367 if (sleeptime > waittime - backend_fudge) 3120 if (sleeptime > waittime - backend_mintime)
2368 sleeptime = waittime - backend_fudge; 3121 sleeptime = waittime - backend_mintime;
2369 3122
2370 if (expect_true (sleeptime > 0.)) 3123 if (expect_true (sleeptime > 0.))
2371 { 3124 {
2372 ev_sleep (sleeptime); 3125 ev_sleep (sleeptime);
2373 waittime -= sleeptime; 3126 waittime -= sleeptime;
… …
2376 } 3129 }
2377 3130
2378#if EV_FEATURE_API 3131#if EV_FEATURE_API
2379 ++loop_count; 3132 ++loop_count;
2380#endif 3133#endif
2381 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3134 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2382 backend_poll (EV_A_ waittime); 3135 backend_poll (EV_A_ waittime);
2383 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3136 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3137
3138 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3139
3140 MEMORY_FENCE_ACQUIRE;
3141 if (pipe_write_skipped)
3142 {
3143 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3144 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3145 }
3146
2384 3147
2385 /* update ev_rt_now, do magic */ 3148 /* update ev_rt_now, do magic */
2386 time_update (EV_A_ waittime + sleeptime); 3149 time_update (EV_A_ waittime + sleeptime);
2387 } 3150 }
2388 3151
… …
2406 EV_INVOKE_PENDING; 3169 EV_INVOKE_PENDING;
2407 } 3170 }
2408 while (expect_true ( 3171 while (expect_true (
2409 activecnt 3172 activecnt
2410 && !loop_done 3173 && !loop_done
2411 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3174 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2412 )); 3175 ));
2413 3176
2414 if (loop_done == EVUNLOOP_ONE) 3177 if (loop_done == EVBREAK_ONE)
2415 loop_done = EVUNLOOP_CANCEL; 3178 loop_done = EVBREAK_CANCEL;
2416 3179
2417#if EV_FEATURE_API 3180#if EV_FEATURE_API
2418 --loop_depth; 3181 --loop_depth;
2419#endif 3182#endif
3183
3184 return activecnt;
2420} 3185}
2421 3186
2422void 3187void
2423ev_unloop (EV_P_ int how) 3188ev_break (EV_P_ int how) EV_THROW
2424{ 3189{
2425 loop_done = how; 3190 loop_done = how;
2426} 3191}
2427 3192
2428void 3193void
2429ev_ref (EV_P) 3194ev_ref (EV_P) EV_THROW
2430{ 3195{
2431 ++activecnt; 3196 ++activecnt;
2432} 3197}
2433 3198
2434void 3199void
2435ev_unref (EV_P) 3200ev_unref (EV_P) EV_THROW
2436{ 3201{
2437 --activecnt; 3202 --activecnt;
2438} 3203}
2439 3204
2440void 3205void
2441ev_now_update (EV_P) 3206ev_now_update (EV_P) EV_THROW
2442{ 3207{
2443 time_update (EV_A_ 1e100); 3208 time_update (EV_A_ 1e100);
2444} 3209}
2445 3210
2446void 3211void
2447ev_suspend (EV_P) 3212ev_suspend (EV_P) EV_THROW
2448{ 3213{
2449 ev_now_update (EV_A); 3214 ev_now_update (EV_A);
2450} 3215}
2451 3216
2452void 3217void
2453ev_resume (EV_P) 3218ev_resume (EV_P) EV_THROW
2454{ 3219{
2455 ev_tstamp mn_prev = mn_now; 3220 ev_tstamp mn_prev = mn_now;
2456 3221
2457 ev_now_update (EV_A); 3222 ev_now_update (EV_A);
2458 timers_reschedule (EV_A_ mn_now - mn_prev); 3223 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2497 w->pending = 0; 3262 w->pending = 0;
2498 } 3263 }
2499} 3264}
2500 3265
2501int 3266int
2502ev_clear_pending (EV_P_ void *w) 3267ev_clear_pending (EV_P_ void *w) EV_THROW
2503{ 3268{
2504 W w_ = (W)w; 3269 W w_ = (W)w;
2505 int pending = w_->pending; 3270 int pending = w_->pending;
2506 3271
2507 if (expect_true (pending)) 3272 if (expect_true (pending))
… …
2540} 3305}
2541 3306
2542/*****************************************************************************/ 3307/*****************************************************************************/
2543 3308
2544void noinline 3309void noinline
2545ev_io_start (EV_P_ ev_io *w) 3310ev_io_start (EV_P_ ev_io *w) EV_THROW
2546{ 3311{
2547 int fd = w->fd; 3312 int fd = w->fd;
2548 3313
2549 if (expect_false (ev_is_active (w))) 3314 if (expect_false (ev_is_active (w)))
2550 return; 3315 return;
… …
2556 3321
2557 ev_start (EV_A_ (W)w, 1); 3322 ev_start (EV_A_ (W)w, 1);
2558 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3323 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2559 wlist_add (&anfds[fd].head, (WL)w); 3324 wlist_add (&anfds[fd].head, (WL)w);
2560 3325
3326 /* common bug, apparently */
3327 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3328
2561 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3329 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2562 w->events &= ~EV__IOFDSET; 3330 w->events &= ~EV__IOFDSET;
2563 3331
2564 EV_FREQUENT_CHECK; 3332 EV_FREQUENT_CHECK;
2565} 3333}
2566 3334
2567void noinline 3335void noinline
2568ev_io_stop (EV_P_ ev_io *w) 3336ev_io_stop (EV_P_ ev_io *w) EV_THROW
2569{ 3337{
2570 clear_pending (EV_A_ (W)w); 3338 clear_pending (EV_A_ (W)w);
2571 if (expect_false (!ev_is_active (w))) 3339 if (expect_false (!ev_is_active (w)))
2572 return; 3340 return;
2573 3341
… …
2576 EV_FREQUENT_CHECK; 3344 EV_FREQUENT_CHECK;
2577 3345
2578 wlist_del (&anfds[w->fd].head, (WL)w); 3346 wlist_del (&anfds[w->fd].head, (WL)w);
2579 ev_stop (EV_A_ (W)w); 3347 ev_stop (EV_A_ (W)w);
2580 3348
2581 fd_change (EV_A_ w->fd, 1); 3349 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2582 3350
2583 EV_FREQUENT_CHECK; 3351 EV_FREQUENT_CHECK;
2584} 3352}
2585 3353
2586void noinline 3354void noinline
2587ev_timer_start (EV_P_ ev_timer *w) 3355ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2588{ 3356{
2589 if (expect_false (ev_is_active (w))) 3357 if (expect_false (ev_is_active (w)))
2590 return; 3358 return;
2591 3359
2592 ev_at (w) += mn_now; 3360 ev_at (w) += mn_now;
… …
2606 3374
2607 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3375 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2608} 3376}
2609 3377
2610void noinline 3378void noinline
2611ev_timer_stop (EV_P_ ev_timer *w) 3379ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2612{ 3380{
2613 clear_pending (EV_A_ (W)w); 3381 clear_pending (EV_A_ (W)w);
2614 if (expect_false (!ev_is_active (w))) 3382 if (expect_false (!ev_is_active (w)))
2615 return; 3383 return;
2616 3384
… …
2636 3404
2637 EV_FREQUENT_CHECK; 3405 EV_FREQUENT_CHECK;
2638} 3406}
2639 3407
2640void noinline 3408void noinline
2641ev_timer_again (EV_P_ ev_timer *w) 3409ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2642{ 3410{
2643 EV_FREQUENT_CHECK; 3411 EV_FREQUENT_CHECK;
3412
3413 clear_pending (EV_A_ (W)w);
2644 3414
2645 if (ev_is_active (w)) 3415 if (ev_is_active (w))
2646 { 3416 {
2647 if (w->repeat) 3417 if (w->repeat)
2648 { 3418 {
… …
2661 3431
2662 EV_FREQUENT_CHECK; 3432 EV_FREQUENT_CHECK;
2663} 3433}
2664 3434
2665ev_tstamp 3435ev_tstamp
2666ev_timer_remaining (EV_P_ ev_timer *w) 3436ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2667{ 3437{
2668 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3438 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2669} 3439}
2670 3440
2671#if EV_PERIODIC_ENABLE 3441#if EV_PERIODIC_ENABLE
2672void noinline 3442void noinline
2673ev_periodic_start (EV_P_ ev_periodic *w) 3443ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2674{ 3444{
2675 if (expect_false (ev_is_active (w))) 3445 if (expect_false (ev_is_active (w)))
2676 return; 3446 return;
2677 3447
2678 if (w->reschedule_cb) 3448 if (w->reschedule_cb)
2679 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3449 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2680 else if (w->interval) 3450 else if (w->interval)
2681 { 3451 {
2682 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3452 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2683 /* this formula differs from the one in periodic_reify because we do not always round up */ 3453 periodic_recalc (EV_A_ w);
2684 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2685 } 3454 }
2686 else 3455 else
2687 ev_at (w) = w->offset; 3456 ev_at (w) = w->offset;
2688 3457
2689 EV_FREQUENT_CHECK; 3458 EV_FREQUENT_CHECK;
… …
2699 3468
2700 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3469 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2701} 3470}
2702 3471
2703void noinline 3472void noinline
2704ev_periodic_stop (EV_P_ ev_periodic *w) 3473ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2705{ 3474{
2706 clear_pending (EV_A_ (W)w); 3475 clear_pending (EV_A_ (W)w);
2707 if (expect_false (!ev_is_active (w))) 3476 if (expect_false (!ev_is_active (w)))
2708 return; 3477 return;
2709 3478
… …
2727 3496
2728 EV_FREQUENT_CHECK; 3497 EV_FREQUENT_CHECK;
2729} 3498}
2730 3499
2731void noinline 3500void noinline
2732ev_periodic_again (EV_P_ ev_periodic *w) 3501ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2733{ 3502{
2734 /* TODO: use adjustheap and recalculation */ 3503 /* TODO: use adjustheap and recalculation */
2735 ev_periodic_stop (EV_A_ w); 3504 ev_periodic_stop (EV_A_ w);
2736 ev_periodic_start (EV_A_ w); 3505 ev_periodic_start (EV_A_ w);
2737} 3506}
… …
2742#endif 3511#endif
2743 3512
2744#if EV_SIGNAL_ENABLE 3513#if EV_SIGNAL_ENABLE
2745 3514
2746void noinline 3515void noinline
2747ev_signal_start (EV_P_ ev_signal *w) 3516ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2748{ 3517{
2749 if (expect_false (ev_is_active (w))) 3518 if (expect_false (ev_is_active (w)))
2750 return; 3519 return;
2751 3520
2752 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3521 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2810 sa.sa_handler = ev_sighandler; 3579 sa.sa_handler = ev_sighandler;
2811 sigfillset (&sa.sa_mask); 3580 sigfillset (&sa.sa_mask);
2812 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3581 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2813 sigaction (w->signum, &sa, 0); 3582 sigaction (w->signum, &sa, 0);
2814 3583
3584 if (origflags & EVFLAG_NOSIGMASK)
3585 {
2815 sigemptyset (&sa.sa_mask); 3586 sigemptyset (&sa.sa_mask);
2816 sigaddset (&sa.sa_mask, w->signum); 3587 sigaddset (&sa.sa_mask, w->signum);
2817 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3588 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3589 }
2818#endif 3590#endif
2819 } 3591 }
2820 3592
2821 EV_FREQUENT_CHECK; 3593 EV_FREQUENT_CHECK;
2822} 3594}
2823 3595
2824void noinline 3596void noinline
2825ev_signal_stop (EV_P_ ev_signal *w) 3597ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2826{ 3598{
2827 clear_pending (EV_A_ (W)w); 3599 clear_pending (EV_A_ (W)w);
2828 if (expect_false (!ev_is_active (w))) 3600 if (expect_false (!ev_is_active (w)))
2829 return; 3601 return;
2830 3602
… …
2861#endif 3633#endif
2862 3634
2863#if EV_CHILD_ENABLE 3635#if EV_CHILD_ENABLE
2864 3636
2865void 3637void
2866ev_child_start (EV_P_ ev_child *w) 3638ev_child_start (EV_P_ ev_child *w) EV_THROW
2867{ 3639{
2868#if EV_MULTIPLICITY 3640#if EV_MULTIPLICITY
2869 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3641 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2870#endif 3642#endif
2871 if (expect_false (ev_is_active (w))) 3643 if (expect_false (ev_is_active (w)))
… …
2878 3650
2879 EV_FREQUENT_CHECK; 3651 EV_FREQUENT_CHECK;
2880} 3652}
2881 3653
2882void 3654void
2883ev_child_stop (EV_P_ ev_child *w) 3655ev_child_stop (EV_P_ ev_child *w) EV_THROW
2884{ 3656{
2885 clear_pending (EV_A_ (W)w); 3657 clear_pending (EV_A_ (W)w);
2886 if (expect_false (!ev_is_active (w))) 3658 if (expect_false (!ev_is_active (w)))
2887 return; 3659 return;
2888 3660
… …
2963 if (!pend || pend == path) 3735 if (!pend || pend == path)
2964 break; 3736 break;
2965 3737
2966 *pend = 0; 3738 *pend = 0;
2967 w->wd = inotify_add_watch (fs_fd, path, mask); 3739 w->wd = inotify_add_watch (fs_fd, path, mask);
2968 } 3740 }
2969 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3741 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2970 } 3742 }
2971 } 3743 }
2972 3744
2973 if (w->wd >= 0) 3745 if (w->wd >= 0)
… …
3040 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3812 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3041 ofs += sizeof (struct inotify_event) + ev->len; 3813 ofs += sizeof (struct inotify_event) + ev->len;
3042 } 3814 }
3043} 3815}
3044 3816
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 3817inline_size void ecb_cold
3078ev_check_2625 (EV_P) 3818ev_check_2625 (EV_P)
3079{ 3819{
3080 /* kernels < 2.6.25 are borked 3820 /* kernels < 2.6.25 are borked
3081 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3821 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3082 */ 3822 */
… …
3087} 3827}
3088 3828
3089inline_size int 3829inline_size int
3090infy_newfd (void) 3830infy_newfd (void)
3091{ 3831{
3092#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3832#if defined IN_CLOEXEC && defined IN_NONBLOCK
3093 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3833 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3094 if (fd >= 0) 3834 if (fd >= 0)
3095 return fd; 3835 return fd;
3096#endif 3836#endif
3097 return inotify_init (); 3837 return inotify_init ();
… …
3172#else 3912#else
3173# define EV_LSTAT(p,b) lstat (p, b) 3913# define EV_LSTAT(p,b) lstat (p, b)
3174#endif 3914#endif
3175 3915
3176void 3916void
3177ev_stat_stat (EV_P_ ev_stat *w) 3917ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3178{ 3918{
3179 if (lstat (w->path, &w->attr) < 0) 3919 if (lstat (w->path, &w->attr) < 0)
3180 w->attr.st_nlink = 0; 3920 w->attr.st_nlink = 0;
3181 else if (!w->attr.st_nlink) 3921 else if (!w->attr.st_nlink)
3182 w->attr.st_nlink = 1; 3922 w->attr.st_nlink = 1;
… …
3221 ev_feed_event (EV_A_ w, EV_STAT); 3961 ev_feed_event (EV_A_ w, EV_STAT);
3222 } 3962 }
3223} 3963}
3224 3964
3225void 3965void
3226ev_stat_start (EV_P_ ev_stat *w) 3966ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3227{ 3967{
3228 if (expect_false (ev_is_active (w))) 3968 if (expect_false (ev_is_active (w)))
3229 return; 3969 return;
3230 3970
3231 ev_stat_stat (EV_A_ w); 3971 ev_stat_stat (EV_A_ w);
… …
3252 3992
3253 EV_FREQUENT_CHECK; 3993 EV_FREQUENT_CHECK;
3254} 3994}
3255 3995
3256void 3996void
3257ev_stat_stop (EV_P_ ev_stat *w) 3997ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3258{ 3998{
3259 clear_pending (EV_A_ (W)w); 3999 clear_pending (EV_A_ (W)w);
3260 if (expect_false (!ev_is_active (w))) 4000 if (expect_false (!ev_is_active (w)))
3261 return; 4001 return;
3262 4002
… …
3278} 4018}
3279#endif 4019#endif
3280 4020
3281#if EV_IDLE_ENABLE 4021#if EV_IDLE_ENABLE
3282void 4022void
3283ev_idle_start (EV_P_ ev_idle *w) 4023ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3284{ 4024{
3285 if (expect_false (ev_is_active (w))) 4025 if (expect_false (ev_is_active (w)))
3286 return; 4026 return;
3287 4027
3288 pri_adjust (EV_A_ (W)w); 4028 pri_adjust (EV_A_ (W)w);
… …
3301 4041
3302 EV_FREQUENT_CHECK; 4042 EV_FREQUENT_CHECK;
3303} 4043}
3304 4044
3305void 4045void
3306ev_idle_stop (EV_P_ ev_idle *w) 4046ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3307{ 4047{
3308 clear_pending (EV_A_ (W)w); 4048 clear_pending (EV_A_ (W)w);
3309 if (expect_false (!ev_is_active (w))) 4049 if (expect_false (!ev_is_active (w)))
3310 return; 4050 return;
3311 4051
… …
3325} 4065}
3326#endif 4066#endif
3327 4067
3328#if EV_PREPARE_ENABLE 4068#if EV_PREPARE_ENABLE
3329void 4069void
3330ev_prepare_start (EV_P_ ev_prepare *w) 4070ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3331{ 4071{
3332 if (expect_false (ev_is_active (w))) 4072 if (expect_false (ev_is_active (w)))
3333 return; 4073 return;
3334 4074
3335 EV_FREQUENT_CHECK; 4075 EV_FREQUENT_CHECK;
… …
3340 4080
3341 EV_FREQUENT_CHECK; 4081 EV_FREQUENT_CHECK;
3342} 4082}
3343 4083
3344void 4084void
3345ev_prepare_stop (EV_P_ ev_prepare *w) 4085ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3346{ 4086{
3347 clear_pending (EV_A_ (W)w); 4087 clear_pending (EV_A_ (W)w);
3348 if (expect_false (!ev_is_active (w))) 4088 if (expect_false (!ev_is_active (w)))
3349 return; 4089 return;
3350 4090
… …
3363} 4103}
3364#endif 4104#endif
3365 4105
3366#if EV_CHECK_ENABLE 4106#if EV_CHECK_ENABLE
3367void 4107void
3368ev_check_start (EV_P_ ev_check *w) 4108ev_check_start (EV_P_ ev_check *w) EV_THROW
3369{ 4109{
3370 if (expect_false (ev_is_active (w))) 4110 if (expect_false (ev_is_active (w)))
3371 return; 4111 return;
3372 4112
3373 EV_FREQUENT_CHECK; 4113 EV_FREQUENT_CHECK;
… …
3378 4118
3379 EV_FREQUENT_CHECK; 4119 EV_FREQUENT_CHECK;
3380} 4120}
3381 4121
3382void 4122void
3383ev_check_stop (EV_P_ ev_check *w) 4123ev_check_stop (EV_P_ ev_check *w) EV_THROW
3384{ 4124{
3385 clear_pending (EV_A_ (W)w); 4125 clear_pending (EV_A_ (W)w);
3386 if (expect_false (!ev_is_active (w))) 4126 if (expect_false (!ev_is_active (w)))
3387 return; 4127 return;
3388 4128
… …
3401} 4141}
3402#endif 4142#endif
3403 4143
3404#if EV_EMBED_ENABLE 4144#if EV_EMBED_ENABLE
3405void noinline 4145void noinline
3406ev_embed_sweep (EV_P_ ev_embed *w) 4146ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3407{ 4147{
3408 ev_loop (w->other, EVLOOP_NONBLOCK); 4148 ev_run (w->other, EVRUN_NOWAIT);
3409} 4149}
3410 4150
3411static void 4151static void
3412embed_io_cb (EV_P_ ev_io *io, int revents) 4152embed_io_cb (EV_P_ ev_io *io, int revents)
3413{ 4153{
3414 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4154 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3415 4155
3416 if (ev_cb (w)) 4156 if (ev_cb (w))
3417 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4157 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3418 else 4158 else
3419 ev_loop (w->other, EVLOOP_NONBLOCK); 4159 ev_run (w->other, EVRUN_NOWAIT);
3420} 4160}
3421 4161
3422static void 4162static void
3423embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4163embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3424{ 4164{
… …
3428 EV_P = w->other; 4168 EV_P = w->other;
3429 4169
3430 while (fdchangecnt) 4170 while (fdchangecnt)
3431 { 4171 {
3432 fd_reify (EV_A); 4172 fd_reify (EV_A);
3433 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4173 ev_run (EV_A_ EVRUN_NOWAIT);
3434 } 4174 }
3435 } 4175 }
3436} 4176}
3437 4177
3438static void 4178static void
… …
3444 4184
3445 { 4185 {
3446 EV_P = w->other; 4186 EV_P = w->other;
3447 4187
3448 ev_loop_fork (EV_A); 4188 ev_loop_fork (EV_A);
3449 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4189 ev_run (EV_A_ EVRUN_NOWAIT);
3450 } 4190 }
3451 4191
3452 ev_embed_start (EV_A_ w); 4192 ev_embed_start (EV_A_ w);
3453} 4193}
3454 4194
… …
3459 ev_idle_stop (EV_A_ idle); 4199 ev_idle_stop (EV_A_ idle);
3460} 4200}
3461#endif 4201#endif
3462 4202
3463void 4203void
3464ev_embed_start (EV_P_ ev_embed *w) 4204ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3465{ 4205{
3466 if (expect_false (ev_is_active (w))) 4206 if (expect_false (ev_is_active (w)))
3467 return; 4207 return;
3468 4208
3469 { 4209 {
… …
3490 4230
3491 EV_FREQUENT_CHECK; 4231 EV_FREQUENT_CHECK;
3492} 4232}
3493 4233
3494void 4234void
3495ev_embed_stop (EV_P_ ev_embed *w) 4235ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3496{ 4236{
3497 clear_pending (EV_A_ (W)w); 4237 clear_pending (EV_A_ (W)w);
3498 if (expect_false (!ev_is_active (w))) 4238 if (expect_false (!ev_is_active (w)))
3499 return; 4239 return;
3500 4240
… …
3510} 4250}
3511#endif 4251#endif
3512 4252
3513#if EV_FORK_ENABLE 4253#if EV_FORK_ENABLE
3514void 4254void
3515ev_fork_start (EV_P_ ev_fork *w) 4255ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3516{ 4256{
3517 if (expect_false (ev_is_active (w))) 4257 if (expect_false (ev_is_active (w)))
3518 return; 4258 return;
3519 4259
3520 EV_FREQUENT_CHECK; 4260 EV_FREQUENT_CHECK;
… …
3525 4265
3526 EV_FREQUENT_CHECK; 4266 EV_FREQUENT_CHECK;
3527} 4267}
3528 4268
3529void 4269void
3530ev_fork_stop (EV_P_ ev_fork *w) 4270ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3531{ 4271{
3532 clear_pending (EV_A_ (W)w); 4272 clear_pending (EV_A_ (W)w);
3533 if (expect_false (!ev_is_active (w))) 4273 if (expect_false (!ev_is_active (w)))
3534 return; 4274 return;
3535 4275
… …
3546 4286
3547 EV_FREQUENT_CHECK; 4287 EV_FREQUENT_CHECK;
3548} 4288}
3549#endif 4289#endif
3550 4290
4291#if EV_CLEANUP_ENABLE
4292void
4293ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4294{
4295 if (expect_false (ev_is_active (w)))
4296 return;
4297
4298 EV_FREQUENT_CHECK;
4299
4300 ev_start (EV_A_ (W)w, ++cleanupcnt);
4301 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4302 cleanups [cleanupcnt - 1] = w;
4303
4304 /* cleanup watchers should never keep a refcount on the loop */
4305 ev_unref (EV_A);
4306 EV_FREQUENT_CHECK;
4307}
4308
4309void
4310ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4311{
4312 clear_pending (EV_A_ (W)w);
4313 if (expect_false (!ev_is_active (w)))
4314 return;
4315
4316 EV_FREQUENT_CHECK;
4317 ev_ref (EV_A);
4318
4319 {
4320 int active = ev_active (w);
4321
4322 cleanups [active - 1] = cleanups [--cleanupcnt];
4323 ev_active (cleanups [active - 1]) = active;
4324 }
4325
4326 ev_stop (EV_A_ (W)w);
4327
4328 EV_FREQUENT_CHECK;
4329}
4330#endif
4331
3551#if EV_ASYNC_ENABLE 4332#if EV_ASYNC_ENABLE
3552void 4333void
3553ev_async_start (EV_P_ ev_async *w) 4334ev_async_start (EV_P_ ev_async *w) EV_THROW
3554{ 4335{
3555 if (expect_false (ev_is_active (w))) 4336 if (expect_false (ev_is_active (w)))
3556 return; 4337 return;
4338
4339 w->sent = 0;
3557 4340
3558 evpipe_init (EV_A); 4341 evpipe_init (EV_A);
3559 4342
3560 EV_FREQUENT_CHECK; 4343 EV_FREQUENT_CHECK;
3561 4344
… …
3565 4348
3566 EV_FREQUENT_CHECK; 4349 EV_FREQUENT_CHECK;
3567} 4350}
3568 4351
3569void 4352void
3570ev_async_stop (EV_P_ ev_async *w) 4353ev_async_stop (EV_P_ ev_async *w) EV_THROW
3571{ 4354{
3572 clear_pending (EV_A_ (W)w); 4355 clear_pending (EV_A_ (W)w);
3573 if (expect_false (!ev_is_active (w))) 4356 if (expect_false (!ev_is_active (w)))
3574 return; 4357 return;
3575 4358
… …
3586 4369
3587 EV_FREQUENT_CHECK; 4370 EV_FREQUENT_CHECK;
3588} 4371}
3589 4372
3590void 4373void
3591ev_async_send (EV_P_ ev_async *w) 4374ev_async_send (EV_P_ ev_async *w) EV_THROW
3592{ 4375{
3593 w->sent = 1; 4376 w->sent = 1;
3594 evpipe_write (EV_A_ &async_pending); 4377 evpipe_write (EV_A_ &async_pending);
3595} 4378}
3596#endif 4379#endif
… …
3633 4416
3634 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4417 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3635} 4418}
3636 4419
3637void 4420void
3638ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4421ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3639{ 4422{
3640 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4423 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3641 4424
3642 if (expect_false (!once)) 4425 if (expect_false (!once))
3643 { 4426 {
… …
3664} 4447}
3665 4448
3666/*****************************************************************************/ 4449/*****************************************************************************/
3667 4450
3668#if EV_WALK_ENABLE 4451#if EV_WALK_ENABLE
3669void 4452void ecb_cold
3670ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4453ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3671{ 4454{
3672 int i, j; 4455 int i, j;
3673 ev_watcher_list *wl, *wn; 4456 ev_watcher_list *wl, *wn;
3674 4457
3675 if (types & (EV_IO | EV_EMBED)) 4458 if (types & (EV_IO | EV_EMBED))
… …
3718 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4501 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3719#endif 4502#endif
3720 4503
3721#if EV_IDLE_ENABLE 4504#if EV_IDLE_ENABLE
3722 if (types & EV_IDLE) 4505 if (types & EV_IDLE)
3723 for (j = NUMPRI; i--; ) 4506 for (j = NUMPRI; j--; )
3724 for (i = idlecnt [j]; i--; ) 4507 for (i = idlecnt [j]; i--; )
3725 cb (EV_A_ EV_IDLE, idles [j][i]); 4508 cb (EV_A_ EV_IDLE, idles [j][i]);
3726#endif 4509#endif
3727 4510
3728#if EV_FORK_ENABLE 4511#if EV_FORK_ENABLE
… …
3781 4564
3782#if EV_MULTIPLICITY 4565#if EV_MULTIPLICITY
3783 #include "ev_wrap.h" 4566 #include "ev_wrap.h"
3784#endif 4567#endif
3785 4568
3786#ifdef __cplusplus
3787}
3788#endif
3789

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