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Comparing libev/ev.c (file contents):
Revision 1.339 by root, Tue Mar 16 00:43:22 2010 UTC vs.
Revision 1.443 by root, Thu May 31 17:53:26 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_loop_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_CPP11 (__cplusplus >= 201103L)
565
566/*****************************************************************************/
567
568/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
569/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
570
571#if ECB_NO_THREADS
572 #define ECB_NO_SMP 1
573#endif
574
575#if ECB_NO_SMP
576 #define ECB_MEMORY_FENCE do { } while (0)
577#endif
578
579#ifndef ECB_MEMORY_FENCE
580 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
581 #if __i386 || __i386__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
583 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
584 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
585 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
587 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
588 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
589 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
590 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
591 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
592 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
593 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
594 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
595 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
596 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
597 #elif __sparc || __sparc__
598 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
599 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
600 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
601 #elif defined __s390__ || defined __s390x__
602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
603 #elif defined __mips__
604 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
605 #elif defined __alpha__
606 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
607 #elif defined __hppa__
608 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610 #elif defined __ia64__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
612 #endif
613 #endif
614#endif
615
616#ifndef ECB_MEMORY_FENCE
617 #if ECB_GCC_VERSION(4,7)
618 /* see comment below (stdatomic.h) about the C11 memory model. */
619 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
620 #elif defined __clang && __has_feature (cxx_atomic)
621 /* see comment below (stdatomic.h) about the C11 memory model. */
622 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
623 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
624 #define ECB_MEMORY_FENCE __sync_synchronize ()
625 #elif _MSC_VER >= 1400 /* VC++ 2005 */
626 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
627 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
628 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
629 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
630 #elif defined _WIN32
631 #include <WinNT.h>
632 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
633 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
634 #include <mbarrier.h>
635 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
636 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
637 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
638 #elif __xlC__
639 #define ECB_MEMORY_FENCE __sync ()
640 #endif
641#endif
642
643#ifndef ECB_MEMORY_FENCE
644 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
645 /* we assume that these memory fences work on all variables/all memory accesses, */
646 /* not just C11 atomics and atomic accesses */
647 #include <stdatomic.h>
648 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
649 /* any fence other than seq_cst, which isn't very efficient for us. */
650 /* Why that is, we don't know - either the C11 memory model is quite useless */
651 /* for most usages, or gcc and clang have a bug */
652 /* I *currently* lean towards the latter, and inefficiently implement */
653 /* all three of ecb's fences as a seq_cst fence */
654 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
655 #endif
656#endif
657
658#ifndef ECB_MEMORY_FENCE
659 #if !ECB_AVOID_PTHREADS
660 /*
661 * if you get undefined symbol references to pthread_mutex_lock,
662 * or failure to find pthread.h, then you should implement
663 * the ECB_MEMORY_FENCE operations for your cpu/compiler
664 * OR provide pthread.h and link against the posix thread library
665 * of your system.
666 */
667 #include <pthread.h>
668 #define ECB_NEEDS_PTHREADS 1
669 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
670
671 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
672 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
673 #endif
674#endif
675
676#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
677 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
678#endif
679
680#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
681 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
682#endif
683
684/*****************************************************************************/
685
686#if __cplusplus
687 #define ecb_inline static inline
688#elif ECB_GCC_VERSION(2,5)
689 #define ecb_inline static __inline__
690#elif ECB_C99
691 #define ecb_inline static inline
692#else
693 #define ecb_inline static
694#endif
695
696#if ECB_GCC_VERSION(3,3)
697 #define ecb_restrict __restrict__
698#elif ECB_C99
699 #define ecb_restrict restrict
700#else
701 #define ecb_restrict
702#endif
703
704typedef int ecb_bool;
705
706#define ECB_CONCAT_(a, b) a ## b
707#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
708#define ECB_STRINGIFY_(a) # a
709#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
710
711#define ecb_function_ ecb_inline
712
713#if ECB_GCC_VERSION(3,1)
714 #define ecb_attribute(attrlist) __attribute__(attrlist)
715 #define ecb_is_constant(expr) __builtin_constant_p (expr)
716 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
717 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
718#else
719 #define ecb_attribute(attrlist)
720 #define ecb_is_constant(expr) 0
721 #define ecb_expect(expr,value) (expr)
722 #define ecb_prefetch(addr,rw,locality)
723#endif
724
725/* no emulation for ecb_decltype */
726#if ECB_GCC_VERSION(4,5)
727 #define ecb_decltype(x) __decltype(x)
728#elif ECB_GCC_VERSION(3,0)
729 #define ecb_decltype(x) __typeof(x)
730#endif
731
732#define ecb_noinline ecb_attribute ((__noinline__))
733#define ecb_unused ecb_attribute ((__unused__))
734#define ecb_const ecb_attribute ((__const__))
735#define ecb_pure ecb_attribute ((__pure__))
736
737#if ECB_C11
738 #define ecb_noreturn _Noreturn
739#else
740 #define ecb_noreturn ecb_attribute ((__noreturn__))
741#endif
742
743#if ECB_GCC_VERSION(4,3)
744 #define ecb_artificial ecb_attribute ((__artificial__))
745 #define ecb_hot ecb_attribute ((__hot__))
746 #define ecb_cold ecb_attribute ((__cold__))
747#else
748 #define ecb_artificial
749 #define ecb_hot
750 #define ecb_cold
751#endif
752
753/* put around conditional expressions if you are very sure that the */
754/* expression is mostly true or mostly false. note that these return */
755/* booleans, not the expression. */
469#define expect_false(expr) expect ((expr) != 0, 0) 756#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
470#define expect_true(expr) expect ((expr) != 0, 1) 757#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
758/* for compatibility to the rest of the world */
759#define ecb_likely(expr) ecb_expect_true (expr)
760#define ecb_unlikely(expr) ecb_expect_false (expr)
761
762/* count trailing zero bits and count # of one bits */
763#if ECB_GCC_VERSION(3,4)
764 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
765 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
766 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
767 #define ecb_ctz32(x) __builtin_ctz (x)
768 #define ecb_ctz64(x) __builtin_ctzll (x)
769 #define ecb_popcount32(x) __builtin_popcount (x)
770 /* no popcountll */
771#else
772 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
773 ecb_function_ int
774 ecb_ctz32 (uint32_t x)
775 {
776 int r = 0;
777
778 x &= ~x + 1; /* this isolates the lowest bit */
779
780#if ECB_branchless_on_i386
781 r += !!(x & 0xaaaaaaaa) << 0;
782 r += !!(x & 0xcccccccc) << 1;
783 r += !!(x & 0xf0f0f0f0) << 2;
784 r += !!(x & 0xff00ff00) << 3;
785 r += !!(x & 0xffff0000) << 4;
786#else
787 if (x & 0xaaaaaaaa) r += 1;
788 if (x & 0xcccccccc) r += 2;
789 if (x & 0xf0f0f0f0) r += 4;
790 if (x & 0xff00ff00) r += 8;
791 if (x & 0xffff0000) r += 16;
792#endif
793
794 return r;
795 }
796
797 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
798 ecb_function_ int
799 ecb_ctz64 (uint64_t x)
800 {
801 int shift = x & 0xffffffffU ? 0 : 32;
802 return ecb_ctz32 (x >> shift) + shift;
803 }
804
805 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
806 ecb_function_ int
807 ecb_popcount32 (uint32_t x)
808 {
809 x -= (x >> 1) & 0x55555555;
810 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
811 x = ((x >> 4) + x) & 0x0f0f0f0f;
812 x *= 0x01010101;
813
814 return x >> 24;
815 }
816
817 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
818 ecb_function_ int ecb_ld32 (uint32_t x)
819 {
820 int r = 0;
821
822 if (x >> 16) { x >>= 16; r += 16; }
823 if (x >> 8) { x >>= 8; r += 8; }
824 if (x >> 4) { x >>= 4; r += 4; }
825 if (x >> 2) { x >>= 2; r += 2; }
826 if (x >> 1) { r += 1; }
827
828 return r;
829 }
830
831 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
832 ecb_function_ int ecb_ld64 (uint64_t x)
833 {
834 int r = 0;
835
836 if (x >> 32) { x >>= 32; r += 32; }
837
838 return r + ecb_ld32 (x);
839 }
840#endif
841
842ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
843ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
844ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
845ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
846
847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
849{
850 return ( (x * 0x0802U & 0x22110U)
851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
852}
853
854ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
855ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
856{
857 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
858 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
859 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
860 x = ( x >> 8 ) | ( x << 8);
861
862 return x;
863}
864
865ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
866ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
867{
868 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
869 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
870 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
871 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
872 x = ( x >> 16 ) | ( x << 16);
873
874 return x;
875}
876
877/* popcount64 is only available on 64 bit cpus as gcc builtin */
878/* so for this version we are lazy */
879ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
880ecb_function_ int
881ecb_popcount64 (uint64_t x)
882{
883 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
884}
885
886ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
887ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
888ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
889ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
890ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
891ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
892ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
893ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
894
895ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
896ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
897ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
898ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
899ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
900ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
901ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
902ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
903
904#if ECB_GCC_VERSION(4,3)
905 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
906 #define ecb_bswap32(x) __builtin_bswap32 (x)
907 #define ecb_bswap64(x) __builtin_bswap64 (x)
908#else
909 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
910 ecb_function_ uint16_t
911 ecb_bswap16 (uint16_t x)
912 {
913 return ecb_rotl16 (x, 8);
914 }
915
916 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
917 ecb_function_ uint32_t
918 ecb_bswap32 (uint32_t x)
919 {
920 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
921 }
922
923 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
924 ecb_function_ uint64_t
925 ecb_bswap64 (uint64_t x)
926 {
927 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
928 }
929#endif
930
931#if ECB_GCC_VERSION(4,5)
932 #define ecb_unreachable() __builtin_unreachable ()
933#else
934 /* this seems to work fine, but gcc always emits a warning for it :/ */
935 ecb_inline void ecb_unreachable (void) ecb_noreturn;
936 ecb_inline void ecb_unreachable (void) { }
937#endif
938
939/* try to tell the compiler that some condition is definitely true */
940#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
941
942ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
943ecb_inline unsigned char
944ecb_byteorder_helper (void)
945{
946 const uint32_t u = 0x11223344;
947 return *(unsigned char *)&u;
948}
949
950ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
951ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
952ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
953ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
954
955#if ECB_GCC_VERSION(3,0) || ECB_C99
956 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
957#else
958 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
959#endif
960
961#if __cplusplus
962 template<typename T>
963 static inline T ecb_div_rd (T val, T div)
964 {
965 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
966 }
967 template<typename T>
968 static inline T ecb_div_ru (T val, T div)
969 {
970 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
971 }
972#else
973 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
974 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
975#endif
976
977#if ecb_cplusplus_does_not_suck
978 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
979 template<typename T, int N>
980 static inline int ecb_array_length (const T (&arr)[N])
981 {
982 return N;
983 }
984#else
985 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
986#endif
987
988#endif
989
990/* ECB.H END */
991
992#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
993/* if your architecture doesn't need memory fences, e.g. because it is
994 * single-cpu/core, or if you use libev in a project that doesn't use libev
995 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
996 * libev, in which cases the memory fences become nops.
997 * alternatively, you can remove this #error and link against libpthread,
998 * which will then provide the memory fences.
999 */
1000# error "memory fences not defined for your architecture, please report"
1001#endif
1002
1003#ifndef ECB_MEMORY_FENCE
1004# define ECB_MEMORY_FENCE do { } while (0)
1005# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1006# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1007#endif
1008
1009#define expect_false(cond) ecb_expect_false (cond)
1010#define expect_true(cond) ecb_expect_true (cond)
1011#define noinline ecb_noinline
1012
471#define inline_size static inline 1013#define inline_size ecb_inline
472 1014
473#if EV_FEATURE_CODE 1015#if EV_FEATURE_CODE
474# define inline_speed static inline 1016# define inline_speed ecb_inline
475#else 1017#else
476# define inline_speed static noinline 1018# define inline_speed static noinline
477#endif 1019#endif
478 1020
479#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1021#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
… …
494#define ev_active(w) ((W)(w))->active 1036#define ev_active(w) ((W)(w))->active
495#define ev_at(w) ((WT)(w))->at 1037#define ev_at(w) ((WT)(w))->at
496 1038
497#if EV_USE_REALTIME 1039#if EV_USE_REALTIME
498/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 1040/* 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 */ 1041/* giving it a reasonably high chance of working on typical architectures */
500static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 1042static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
501#endif 1043#endif
502 1044
503#if EV_USE_MONOTONIC 1045#if EV_USE_MONOTONIC
504static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 1046static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
518# include "ev_win32.c" 1060# include "ev_win32.c"
519#endif 1061#endif
520 1062
521/*****************************************************************************/ 1063/*****************************************************************************/
522 1064
1065/* define a suitable floor function (only used by periodics atm) */
1066
1067#if EV_USE_FLOOR
1068# include <math.h>
1069# define ev_floor(v) floor (v)
1070#else
1071
1072#include <float.h>
1073
1074/* a floor() replacement function, should be independent of ev_tstamp type */
1075static ev_tstamp noinline
1076ev_floor (ev_tstamp v)
1077{
1078 /* the choice of shift factor is not terribly important */
1079#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1080 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1081#else
1082 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1083#endif
1084
1085 /* argument too large for an unsigned long? */
1086 if (expect_false (v >= shift))
1087 {
1088 ev_tstamp f;
1089
1090 if (v == v - 1.)
1091 return v; /* very large number */
1092
1093 f = shift * ev_floor (v * (1. / shift));
1094 return f + ev_floor (v - f);
1095 }
1096
1097 /* special treatment for negative args? */
1098 if (expect_false (v < 0.))
1099 {
1100 ev_tstamp f = -ev_floor (-v);
1101
1102 return f - (f == v ? 0 : 1);
1103 }
1104
1105 /* fits into an unsigned long */
1106 return (unsigned long)v;
1107}
1108
1109#endif
1110
1111/*****************************************************************************/
1112
1113#ifdef __linux
1114# include <sys/utsname.h>
1115#endif
1116
1117static unsigned int noinline ecb_cold
1118ev_linux_version (void)
1119{
1120#ifdef __linux
1121 unsigned int v = 0;
1122 struct utsname buf;
1123 int i;
1124 char *p = buf.release;
1125
1126 if (uname (&buf))
1127 return 0;
1128
1129 for (i = 3+1; --i; )
1130 {
1131 unsigned int c = 0;
1132
1133 for (;;)
1134 {
1135 if (*p >= '0' && *p <= '9')
1136 c = c * 10 + *p++ - '0';
1137 else
1138 {
1139 p += *p == '.';
1140 break;
1141 }
1142 }
1143
1144 v = (v << 8) | c;
1145 }
1146
1147 return v;
1148#else
1149 return 0;
1150#endif
1151}
1152
1153/*****************************************************************************/
1154
523#if EV_AVOID_STDIO 1155#if EV_AVOID_STDIO
524static void noinline 1156static void noinline ecb_cold
525ev_printerr (const char *msg) 1157ev_printerr (const char *msg)
526{ 1158{
527 write (STDERR_FILENO, msg, strlen (msg)); 1159 write (STDERR_FILENO, msg, strlen (msg));
528} 1160}
529#endif 1161#endif
530 1162
531static void (*syserr_cb)(const char *msg); 1163static void (*syserr_cb)(const char *msg) EV_THROW;
532 1164
533void 1165void ecb_cold
534ev_set_syserr_cb (void (*cb)(const char *msg)) 1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
535{ 1167{
536 syserr_cb = cb; 1168 syserr_cb = cb;
537} 1169}
538 1170
539static void noinline 1171static void noinline ecb_cold
540ev_syserr (const char *msg) 1172ev_syserr (const char *msg)
541{ 1173{
542 if (!msg) 1174 if (!msg)
543 msg = "(libev) system error"; 1175 msg = "(libev) system error";
544 1176
545 if (syserr_cb) 1177 if (syserr_cb)
546 syserr_cb (msg); 1178 syserr_cb (msg);
547 else 1179 else
548 { 1180 {
549#if EV_AVOID_STDIO 1181#if EV_AVOID_STDIO
550 const char *err = strerror (errno);
551
552 ev_printerr (msg); 1182 ev_printerr (msg);
553 ev_printerr (": "); 1183 ev_printerr (": ");
554 ev_printerr (err); 1184 ev_printerr (strerror (errno));
555 ev_printerr ("\n"); 1185 ev_printerr ("\n");
556#else 1186#else
557 perror (msg); 1187 perror (msg);
558#endif 1188#endif
559 abort (); 1189 abort ();
560 } 1190 }
561} 1191}
562 1192
563static void * 1193static void *
564ev_realloc_emul (void *ptr, long size) 1194ev_realloc_emul (void *ptr, long size) EV_THROW
565{ 1195{
566#if __GLIBC__ 1196#if __GLIBC__
567 return realloc (ptr, size); 1197 return realloc (ptr, size);
568#else 1198#else
569 /* some systems, notably openbsd and darwin, fail to properly 1199 /* some systems, notably openbsd and darwin, fail to properly
… …
577 free (ptr); 1207 free (ptr);
578 return 0; 1208 return 0;
579#endif 1209#endif
580} 1210}
581 1211
582static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1212static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
583 1213
584void 1214void ecb_cold
585ev_set_allocator (void *(*cb)(void *ptr, long size)) 1215ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
586{ 1216{
587 alloc = cb; 1217 alloc = cb;
588} 1218}
589 1219
590inline_speed void * 1220inline_speed void *
… …
593 ptr = alloc (ptr, size); 1223 ptr = alloc (ptr, size);
594 1224
595 if (!ptr && size) 1225 if (!ptr && size)
596 { 1226 {
597#if EV_AVOID_STDIO 1227#if EV_AVOID_STDIO
598 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1228 ev_printerr ("(libev) memory allocation failed, aborting.\n");
599#else 1229#else
600 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1230 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
601#endif 1231#endif
602 abort (); 1232 abort ();
603 } 1233 }
604 1234
605 return ptr; 1235 return ptr;
… …
622 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1252 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
623 unsigned char unused; 1253 unsigned char unused;
624#if EV_USE_EPOLL 1254#if EV_USE_EPOLL
625 unsigned int egen; /* generation counter to counter epoll bugs */ 1255 unsigned int egen; /* generation counter to counter epoll bugs */
626#endif 1256#endif
627#if EV_SELECT_IS_WINSOCKET 1257#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
628 SOCKET handle; 1258 SOCKET handle;
1259#endif
1260#if EV_USE_IOCP
1261 OVERLAPPED or, ow;
629#endif 1262#endif
630} ANFD; 1263} ANFD;
631 1264
632/* stores the pending event set for a given watcher */ 1265/* stores the pending event set for a given watcher */
633typedef struct 1266typedef struct
… …
675 #undef VAR 1308 #undef VAR
676 }; 1309 };
677 #include "ev_wrap.h" 1310 #include "ev_wrap.h"
678 1311
679 static struct ev_loop default_loop_struct; 1312 static struct ev_loop default_loop_struct;
680 struct ev_loop *ev_default_loop_ptr; 1313 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
681 1314
682#else 1315#else
683 1316
684 ev_tstamp ev_rt_now; 1317 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; 1318 #define VAR(name,decl) static decl;
686 #include "ev_vars.h" 1319 #include "ev_vars.h"
687 #undef VAR 1320 #undef VAR
688 1321
689 static int ev_default_loop_ptr; 1322 static int ev_default_loop_ptr;
… …
698# define EV_RELEASE_CB (void)0 1331# define EV_RELEASE_CB (void)0
699# define EV_ACQUIRE_CB (void)0 1332# define EV_ACQUIRE_CB (void)0
700# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1333# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
701#endif 1334#endif
702 1335
703#define EVUNLOOP_RECURSE 0x80 1336#define EVBREAK_RECURSE 0x80
704 1337
705/*****************************************************************************/ 1338/*****************************************************************************/
706 1339
707#ifndef EV_HAVE_EV_TIME 1340#ifndef EV_HAVE_EV_TIME
708ev_tstamp 1341ev_tstamp
709ev_time (void) 1342ev_time (void) EV_THROW
710{ 1343{
711#if EV_USE_REALTIME 1344#if EV_USE_REALTIME
712 if (expect_true (have_realtime)) 1345 if (expect_true (have_realtime))
713 { 1346 {
714 struct timespec ts; 1347 struct timespec ts;
… …
738 return ev_time (); 1371 return ev_time ();
739} 1372}
740 1373
741#if EV_MULTIPLICITY 1374#if EV_MULTIPLICITY
742ev_tstamp 1375ev_tstamp
743ev_now (EV_P) 1376ev_now (EV_P) EV_THROW
744{ 1377{
745 return ev_rt_now; 1378 return ev_rt_now;
746} 1379}
747#endif 1380#endif
748 1381
749void 1382void
750ev_sleep (ev_tstamp delay) 1383ev_sleep (ev_tstamp delay) EV_THROW
751{ 1384{
752 if (delay > 0.) 1385 if (delay > 0.)
753 { 1386 {
754#if EV_USE_NANOSLEEP 1387#if EV_USE_NANOSLEEP
755 struct timespec ts; 1388 struct timespec ts;
756 1389
757 ts.tv_sec = (time_t)delay; 1390 EV_TS_SET (ts, delay);
758 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
759
760 nanosleep (&ts, 0); 1391 nanosleep (&ts, 0);
761#elif defined(_WIN32) 1392#elif defined _WIN32
762 Sleep ((unsigned long)(delay * 1e3)); 1393 Sleep ((unsigned long)(delay * 1e3));
763#else 1394#else
764 struct timeval tv; 1395 struct timeval tv;
765 1396
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 */ 1397 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
770 /* something not guaranteed by newer posix versions, but guaranteed */ 1398 /* something not guaranteed by newer posix versions, but guaranteed */
771 /* by older ones */ 1399 /* by older ones */
1400 EV_TV_SET (tv, delay);
772 select (0, 0, 0, 0, &tv); 1401 select (0, 0, 0, 0, &tv);
773#endif 1402#endif
774 } 1403 }
775} 1404}
776 1405
777/*****************************************************************************/ 1406/*****************************************************************************/
778 1407
779#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1408#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
780 1409
781/* find a suitable new size for the given array, */ 1410/* find a suitable new size for the given array, */
782/* hopefully by rounding to a ncie-to-malloc size */ 1411/* hopefully by rounding to a nice-to-malloc size */
783inline_size int 1412inline_size int
784array_nextsize (int elem, int cur, int cnt) 1413array_nextsize (int elem, int cur, int cnt)
785{ 1414{
786 int ncur = cur + 1; 1415 int ncur = cur + 1;
787 1416
788 do 1417 do
789 ncur <<= 1; 1418 ncur <<= 1;
790 while (cnt > ncur); 1419 while (cnt > ncur);
791 1420
792 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1421 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
793 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1422 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
794 { 1423 {
795 ncur *= elem; 1424 ncur *= elem;
796 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1425 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
797 ncur = ncur - sizeof (void *) * 4; 1426 ncur = ncur - sizeof (void *) * 4;
… …
799 } 1428 }
800 1429
801 return ncur; 1430 return ncur;
802} 1431}
803 1432
804static noinline void * 1433static void * noinline ecb_cold
805array_realloc (int elem, void *base, int *cur, int cnt) 1434array_realloc (int elem, void *base, int *cur, int cnt)
806{ 1435{
807 *cur = array_nextsize (elem, *cur, cnt); 1436 *cur = array_nextsize (elem, *cur, cnt);
808 return ev_realloc (base, elem * *cur); 1437 return ev_realloc (base, elem * *cur);
809} 1438}
… …
812 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1441 memset ((void *)(base), 0, sizeof (*(base)) * (count))
813 1442
814#define array_needsize(type,base,cur,cnt,init) \ 1443#define array_needsize(type,base,cur,cnt,init) \
815 if (expect_false ((cnt) > (cur))) \ 1444 if (expect_false ((cnt) > (cur))) \
816 { \ 1445 { \
817 int ocur_ = (cur); \ 1446 int ecb_unused ocur_ = (cur); \
818 (base) = (type *)array_realloc \ 1447 (base) = (type *)array_realloc \
819 (sizeof (type), (base), &(cur), (cnt)); \ 1448 (sizeof (type), (base), &(cur), (cnt)); \
820 init ((base) + (ocur_), (cur) - ocur_); \ 1449 init ((base) + (ocur_), (cur) - ocur_); \
821 } 1450 }
822 1451
… …
840pendingcb (EV_P_ ev_prepare *w, int revents) 1469pendingcb (EV_P_ ev_prepare *w, int revents)
841{ 1470{
842} 1471}
843 1472
844void noinline 1473void noinline
845ev_feed_event (EV_P_ void *w, int revents) 1474ev_feed_event (EV_P_ void *w, int revents) EV_THROW
846{ 1475{
847 W w_ = (W)w; 1476 W w_ = (W)w;
848 int pri = ABSPRI (w_); 1477 int pri = ABSPRI (w_);
849 1478
850 if (expect_false (w_->pending)) 1479 if (expect_false (w_->pending))
… …
854 w_->pending = ++pendingcnt [pri]; 1483 w_->pending = ++pendingcnt [pri];
855 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1484 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
856 pendings [pri][w_->pending - 1].w = w_; 1485 pendings [pri][w_->pending - 1].w = w_;
857 pendings [pri][w_->pending - 1].events = revents; 1486 pendings [pri][w_->pending - 1].events = revents;
858 } 1487 }
1488
1489 pendingpri = NUMPRI - 1;
859} 1490}
860 1491
861inline_speed void 1492inline_speed void
862feed_reverse (EV_P_ W w) 1493feed_reverse (EV_P_ W w)
863{ 1494{
… …
909 if (expect_true (!anfd->reify)) 1540 if (expect_true (!anfd->reify))
910 fd_event_nocheck (EV_A_ fd, revents); 1541 fd_event_nocheck (EV_A_ fd, revents);
911} 1542}
912 1543
913void 1544void
914ev_feed_fd_event (EV_P_ int fd, int revents) 1545ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
915{ 1546{
916 if (fd >= 0 && fd < anfdmax) 1547 if (fd >= 0 && fd < anfdmax)
917 fd_event_nocheck (EV_A_ fd, revents); 1548 fd_event_nocheck (EV_A_ fd, revents);
918} 1549}
919 1550
… …
922inline_size void 1553inline_size void
923fd_reify (EV_P) 1554fd_reify (EV_P)
924{ 1555{
925 int i; 1556 int i;
926 1557
1558#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1559 for (i = 0; i < fdchangecnt; ++i)
1560 {
1561 int fd = fdchanges [i];
1562 ANFD *anfd = anfds + fd;
1563
1564 if (anfd->reify & EV__IOFDSET && anfd->head)
1565 {
1566 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1567
1568 if (handle != anfd->handle)
1569 {
1570 unsigned long arg;
1571
1572 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1573
1574 /* handle changed, but fd didn't - we need to do it in two steps */
1575 backend_modify (EV_A_ fd, anfd->events, 0);
1576 anfd->events = 0;
1577 anfd->handle = handle;
1578 }
1579 }
1580 }
1581#endif
1582
927 for (i = 0; i < fdchangecnt; ++i) 1583 for (i = 0; i < fdchangecnt; ++i)
928 { 1584 {
929 int fd = fdchanges [i]; 1585 int fd = fdchanges [i];
930 ANFD *anfd = anfds + fd; 1586 ANFD *anfd = anfds + fd;
931 ev_io *w; 1587 ev_io *w;
932 1588
933 unsigned char events = 0; 1589 unsigned char o_events = anfd->events;
1590 unsigned char o_reify = anfd->reify;
934 1591
935 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1592 anfd->reify = 0;
936 events |= (unsigned char)w->events;
937 1593
938#if EV_SELECT_IS_WINSOCKET 1594 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
939 if (events)
940 { 1595 {
941 unsigned long arg; 1596 anfd->events = 0;
942 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1597
943 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1598 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1599 anfd->events |= (unsigned char)w->events;
1600
1601 if (o_events != anfd->events)
1602 o_reify = EV__IOFDSET; /* actually |= */
944 } 1603 }
945#endif
946 1604
947 { 1605 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); 1606 backend_modify (EV_A_ fd, o_events, anfd->events);
956 }
957 } 1607 }
958 1608
959 fdchangecnt = 0; 1609 fdchangecnt = 0;
960} 1610}
961 1611
… …
973 fdchanges [fdchangecnt - 1] = fd; 1623 fdchanges [fdchangecnt - 1] = fd;
974 } 1624 }
975} 1625}
976 1626
977/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1627/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
978inline_speed void 1628inline_speed void ecb_cold
979fd_kill (EV_P_ int fd) 1629fd_kill (EV_P_ int fd)
980{ 1630{
981 ev_io *w; 1631 ev_io *w;
982 1632
983 while ((w = (ev_io *)anfds [fd].head)) 1633 while ((w = (ev_io *)anfds [fd].head))
… …
986 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1636 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
987 } 1637 }
988} 1638}
989 1639
990/* check whether the given fd is actually valid, for error recovery */ 1640/* check whether the given fd is actually valid, for error recovery */
991inline_size int 1641inline_size int ecb_cold
992fd_valid (int fd) 1642fd_valid (int fd)
993{ 1643{
994#ifdef _WIN32 1644#ifdef _WIN32
995 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1645 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
996#else 1646#else
997 return fcntl (fd, F_GETFD) != -1; 1647 return fcntl (fd, F_GETFD) != -1;
998#endif 1648#endif
999} 1649}
1000 1650
1001/* called on EBADF to verify fds */ 1651/* called on EBADF to verify fds */
1002static void noinline 1652static void noinline ecb_cold
1003fd_ebadf (EV_P) 1653fd_ebadf (EV_P)
1004{ 1654{
1005 int fd; 1655 int fd;
1006 1656
1007 for (fd = 0; fd < anfdmax; ++fd) 1657 for (fd = 0; fd < anfdmax; ++fd)
… …
1009 if (!fd_valid (fd) && errno == EBADF) 1659 if (!fd_valid (fd) && errno == EBADF)
1010 fd_kill (EV_A_ fd); 1660 fd_kill (EV_A_ fd);
1011} 1661}
1012 1662
1013/* called on ENOMEM in select/poll to kill some fds and retry */ 1663/* called on ENOMEM in select/poll to kill some fds and retry */
1014static void noinline 1664static void noinline ecb_cold
1015fd_enomem (EV_P) 1665fd_enomem (EV_P)
1016{ 1666{
1017 int fd; 1667 int fd;
1018 1668
1019 for (fd = anfdmax; fd--; ) 1669 for (fd = anfdmax; fd--; )
… …
1054} 1704}
1055 1705
1056/*****************************************************************************/ 1706/*****************************************************************************/
1057 1707
1058/* 1708/*
1059 * the heap functions want a real array index. array index 0 uis guaranteed to not 1709 * 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 1710 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1061 * the branching factor of the d-tree. 1711 * the branching factor of the d-tree.
1062 */ 1712 */
1063 1713
1064/* 1714/*
… …
1214 1864
1215/*****************************************************************************/ 1865/*****************************************************************************/
1216 1866
1217#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 1867#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1218 1868
1219static void noinline 1869static void noinline ecb_cold
1220evpipe_init (EV_P) 1870evpipe_init (EV_P)
1221{ 1871{
1222 if (!ev_is_active (&pipe_w)) 1872 if (!ev_is_active (&pipe_w))
1223 { 1873 {
1224# if EV_USE_EVENTFD 1874# if EV_USE_EVENTFD
… …
1246 ev_io_start (EV_A_ &pipe_w); 1896 ev_io_start (EV_A_ &pipe_w);
1247 ev_unref (EV_A); /* watcher should not keep loop alive */ 1897 ev_unref (EV_A); /* watcher should not keep loop alive */
1248 } 1898 }
1249} 1899}
1250 1900
1251inline_size void 1901inline_speed void
1252evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1902evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1253{ 1903{
1254 if (!*flag) 1904 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1905
1906 if (expect_true (*flag))
1907 return;
1908
1909 *flag = 1;
1910 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1911
1912 pipe_write_skipped = 1;
1913
1914 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1915
1916 if (pipe_write_wanted)
1255 { 1917 {
1918 int old_errno;
1919
1920 pipe_write_skipped = 0;
1921 ECB_MEMORY_FENCE_RELEASE;
1922
1256 int old_errno = errno; /* save errno because write might clobber it */ 1923 old_errno = errno; /* save errno because write will clobber it */
1257 char dummy;
1258
1259 *flag = 1;
1260 1924
1261#if EV_USE_EVENTFD 1925#if EV_USE_EVENTFD
1262 if (evfd >= 0) 1926 if (evfd >= 0)
1263 { 1927 {
1264 uint64_t counter = 1; 1928 uint64_t counter = 1;
1265 write (evfd, &counter, sizeof (uint64_t)); 1929 write (evfd, &counter, sizeof (uint64_t));
1266 } 1930 }
1267 else 1931 else
1268#endif 1932#endif
1933 {
1934#ifdef _WIN32
1935 WSABUF buf;
1936 DWORD sent;
1937 buf.buf = &buf;
1938 buf.len = 1;
1939 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1940#else
1269 write (evpipe [1], &dummy, 1); 1941 write (evpipe [1], &(evpipe [1]), 1);
1942#endif
1943 }
1270 1944
1271 errno = old_errno; 1945 errno = old_errno;
1272 } 1946 }
1273} 1947}
1274 1948
… …
1277static void 1951static void
1278pipecb (EV_P_ ev_io *iow, int revents) 1952pipecb (EV_P_ ev_io *iow, int revents)
1279{ 1953{
1280 int i; 1954 int i;
1281 1955
1956 if (revents & EV_READ)
1957 {
1282#if EV_USE_EVENTFD 1958#if EV_USE_EVENTFD
1283 if (evfd >= 0) 1959 if (evfd >= 0)
1284 { 1960 {
1285 uint64_t counter; 1961 uint64_t counter;
1286 read (evfd, &counter, sizeof (uint64_t)); 1962 read (evfd, &counter, sizeof (uint64_t));
1287 } 1963 }
1288 else 1964 else
1289#endif 1965#endif
1290 { 1966 {
1291 char dummy; 1967 char dummy[4];
1968#ifdef _WIN32
1969 WSABUF buf;
1970 DWORD recvd;
1971 DWORD flags = 0;
1972 buf.buf = dummy;
1973 buf.len = sizeof (dummy);
1974 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1975#else
1292 read (evpipe [0], &dummy, 1); 1976 read (evpipe [0], &dummy, sizeof (dummy));
1977#endif
1978 }
1293 } 1979 }
1294 1980
1981 pipe_write_skipped = 0;
1982
1983 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1984
1985#if EV_SIGNAL_ENABLE
1295 if (sig_pending) 1986 if (sig_pending)
1296 { 1987 {
1297 sig_pending = 0; 1988 sig_pending = 0;
1989
1990 ECB_MEMORY_FENCE;
1298 1991
1299 for (i = EV_NSIG - 1; i--; ) 1992 for (i = EV_NSIG - 1; i--; )
1300 if (expect_false (signals [i].pending)) 1993 if (expect_false (signals [i].pending))
1301 ev_feed_signal_event (EV_A_ i + 1); 1994 ev_feed_signal_event (EV_A_ i + 1);
1302 } 1995 }
1996#endif
1303 1997
1304#if EV_ASYNC_ENABLE 1998#if EV_ASYNC_ENABLE
1305 if (async_pending) 1999 if (async_pending)
1306 { 2000 {
1307 async_pending = 0; 2001 async_pending = 0;
2002
2003 ECB_MEMORY_FENCE;
1308 2004
1309 for (i = asynccnt; i--; ) 2005 for (i = asynccnt; i--; )
1310 if (asyncs [i]->sent) 2006 if (asyncs [i]->sent)
1311 { 2007 {
1312 asyncs [i]->sent = 0; 2008 asyncs [i]->sent = 0;
2009 ECB_MEMORY_FENCE_RELEASE;
1313 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2010 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1314 } 2011 }
1315 } 2012 }
1316#endif 2013#endif
1317} 2014}
1318 2015
1319/*****************************************************************************/ 2016/*****************************************************************************/
1320 2017
2018void
2019ev_feed_signal (int signum) EV_THROW
2020{
2021#if EV_MULTIPLICITY
2022 EV_P = signals [signum - 1].loop;
2023
2024 if (!EV_A)
2025 return;
2026#endif
2027
2028 if (!ev_active (&pipe_w))
2029 return;
2030
2031 signals [signum - 1].pending = 1;
2032 evpipe_write (EV_A_ &sig_pending);
2033}
2034
1321static void 2035static void
1322ev_sighandler (int signum) 2036ev_sighandler (int signum)
1323{ 2037{
1324#if EV_MULTIPLICITY
1325 EV_P = signals [signum - 1].loop;
1326#endif
1327
1328#ifdef _WIN32 2038#ifdef _WIN32
1329 signal (signum, ev_sighandler); 2039 signal (signum, ev_sighandler);
1330#endif 2040#endif
1331 2041
1332 signals [signum - 1].pending = 1; 2042 ev_feed_signal (signum);
1333 evpipe_write (EV_A_ &sig_pending);
1334} 2043}
1335 2044
1336void noinline 2045void noinline
1337ev_feed_signal_event (EV_P_ int signum) 2046ev_feed_signal_event (EV_P_ int signum) EV_THROW
1338{ 2047{
1339 WL w; 2048 WL w;
1340 2049
1341 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2050 if (expect_false (signum <= 0 || signum > EV_NSIG))
1342 return; 2051 return;
… …
1350 if (expect_false (signals [signum].loop != EV_A)) 2059 if (expect_false (signals [signum].loop != EV_A))
1351 return; 2060 return;
1352#endif 2061#endif
1353 2062
1354 signals [signum].pending = 0; 2063 signals [signum].pending = 0;
2064 ECB_MEMORY_FENCE_RELEASE;
1355 2065
1356 for (w = signals [signum].head; w; w = w->next) 2066 for (w = signals [signum].head; w; w = w->next)
1357 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2067 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1358} 2068}
1359 2069
… …
1438 2148
1439#endif 2149#endif
1440 2150
1441/*****************************************************************************/ 2151/*****************************************************************************/
1442 2152
2153#if EV_USE_IOCP
2154# include "ev_iocp.c"
2155#endif
1443#if EV_USE_PORT 2156#if EV_USE_PORT
1444# include "ev_port.c" 2157# include "ev_port.c"
1445#endif 2158#endif
1446#if EV_USE_KQUEUE 2159#if EV_USE_KQUEUE
1447# include "ev_kqueue.c" 2160# include "ev_kqueue.c"
… …
1454#endif 2167#endif
1455#if EV_USE_SELECT 2168#if EV_USE_SELECT
1456# include "ev_select.c" 2169# include "ev_select.c"
1457#endif 2170#endif
1458 2171
1459int 2172int ecb_cold
1460ev_version_major (void) 2173ev_version_major (void) EV_THROW
1461{ 2174{
1462 return EV_VERSION_MAJOR; 2175 return EV_VERSION_MAJOR;
1463} 2176}
1464 2177
1465int 2178int ecb_cold
1466ev_version_minor (void) 2179ev_version_minor (void) EV_THROW
1467{ 2180{
1468 return EV_VERSION_MINOR; 2181 return EV_VERSION_MINOR;
1469} 2182}
1470 2183
1471/* return true if we are running with elevated privileges and should ignore env variables */ 2184/* return true if we are running with elevated privileges and should ignore env variables */
1472int inline_size 2185int inline_size ecb_cold
1473enable_secure (void) 2186enable_secure (void)
1474{ 2187{
1475#ifdef _WIN32 2188#ifdef _WIN32
1476 return 0; 2189 return 0;
1477#else 2190#else
1478 return getuid () != geteuid () 2191 return getuid () != geteuid ()
1479 || getgid () != getegid (); 2192 || getgid () != getegid ();
1480#endif 2193#endif
1481} 2194}
1482 2195
1483unsigned int 2196unsigned int ecb_cold
1484ev_supported_backends (void) 2197ev_supported_backends (void) EV_THROW
1485{ 2198{
1486 unsigned int flags = 0; 2199 unsigned int flags = 0;
1487 2200
1488 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2201 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1489 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2202 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1492 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2205 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1493 2206
1494 return flags; 2207 return flags;
1495} 2208}
1496 2209
1497unsigned int 2210unsigned int ecb_cold
1498ev_recommended_backends (void) 2211ev_recommended_backends (void) EV_THROW
1499{ 2212{
1500 unsigned int flags = ev_supported_backends (); 2213 unsigned int flags = ev_supported_backends ();
1501 2214
1502#ifndef __NetBSD__ 2215#ifndef __NetBSD__
1503 /* kqueue is borked on everything but netbsd apparently */ 2216 /* kqueue is borked on everything but netbsd apparently */
… …
1507#ifdef __APPLE__ 2220#ifdef __APPLE__
1508 /* only select works correctly on that "unix-certified" platform */ 2221 /* only select works correctly on that "unix-certified" platform */
1509 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2222 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1510 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2223 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1511#endif 2224#endif
2225#ifdef __FreeBSD__
2226 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2227#endif
1512 2228
1513 return flags; 2229 return flags;
1514} 2230}
1515 2231
2232unsigned int ecb_cold
2233ev_embeddable_backends (void) EV_THROW
2234{
2235 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2236
2237 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2238 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2239 flags &= ~EVBACKEND_EPOLL;
2240
2241 return flags;
2242}
2243
1516unsigned int 2244unsigned int
1517ev_embeddable_backends (void)
1518{
1519 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1520
1521 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1522 /* please fix it and tell me how to detect the fix */
1523 flags &= ~EVBACKEND_EPOLL;
1524
1525 return flags;
1526}
1527
1528unsigned int
1529ev_backend (EV_P) 2245ev_backend (EV_P) EV_THROW
1530{ 2246{
1531 return backend; 2247 return backend;
1532} 2248}
1533 2249
1534#if EV_FEATURE_API 2250#if EV_FEATURE_API
1535unsigned int 2251unsigned int
1536ev_loop_count (EV_P) 2252ev_iteration (EV_P) EV_THROW
1537{ 2253{
1538 return loop_count; 2254 return loop_count;
1539} 2255}
1540 2256
1541unsigned int 2257unsigned int
1542ev_loop_depth (EV_P) 2258ev_depth (EV_P) EV_THROW
1543{ 2259{
1544 return loop_depth; 2260 return loop_depth;
1545} 2261}
1546 2262
1547void 2263void
1548ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2264ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1549{ 2265{
1550 io_blocktime = interval; 2266 io_blocktime = interval;
1551} 2267}
1552 2268
1553void 2269void
1554ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2270ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1555{ 2271{
1556 timeout_blocktime = interval; 2272 timeout_blocktime = interval;
1557} 2273}
1558 2274
1559void 2275void
1560ev_set_userdata (EV_P_ void *data) 2276ev_set_userdata (EV_P_ void *data) EV_THROW
1561{ 2277{
1562 userdata = data; 2278 userdata = data;
1563} 2279}
1564 2280
1565void * 2281void *
1566ev_userdata (EV_P) 2282ev_userdata (EV_P) EV_THROW
1567{ 2283{
1568 return userdata; 2284 return userdata;
1569} 2285}
1570 2286
2287void
1571void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2288ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1572{ 2289{
1573 invoke_cb = invoke_pending_cb; 2290 invoke_cb = invoke_pending_cb;
1574} 2291}
1575 2292
2293void
1576void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2294ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1577{ 2295{
1578 release_cb = release; 2296 release_cb = release;
1579 acquire_cb = acquire; 2297 acquire_cb = acquire;
1580} 2298}
1581#endif 2299#endif
1582 2300
1583/* initialise a loop structure, must be zero-initialised */ 2301/* initialise a loop structure, must be zero-initialised */
1584static void noinline 2302static void noinline ecb_cold
1585loop_init (EV_P_ unsigned int flags) 2303loop_init (EV_P_ unsigned int flags) EV_THROW
1586{ 2304{
1587 if (!backend) 2305 if (!backend)
1588 { 2306 {
2307 origflags = flags;
2308
1589#if EV_USE_REALTIME 2309#if EV_USE_REALTIME
1590 if (!have_realtime) 2310 if (!have_realtime)
1591 { 2311 {
1592 struct timespec ts; 2312 struct timespec ts;
1593 2313
… …
1615 if (!(flags & EVFLAG_NOENV) 2335 if (!(flags & EVFLAG_NOENV)
1616 && !enable_secure () 2336 && !enable_secure ()
1617 && getenv ("LIBEV_FLAGS")) 2337 && getenv ("LIBEV_FLAGS"))
1618 flags = atoi (getenv ("LIBEV_FLAGS")); 2338 flags = atoi (getenv ("LIBEV_FLAGS"));
1619 2339
1620 ev_rt_now = ev_time (); 2340 ev_rt_now = ev_time ();
1621 mn_now = get_clock (); 2341 mn_now = get_clock ();
1622 now_floor = mn_now; 2342 now_floor = mn_now;
1623 rtmn_diff = ev_rt_now - mn_now; 2343 rtmn_diff = ev_rt_now - mn_now;
1624#if EV_FEATURE_API 2344#if EV_FEATURE_API
1625 invoke_cb = ev_invoke_pending; 2345 invoke_cb = ev_invoke_pending;
1626#endif 2346#endif
1627 2347
1628 io_blocktime = 0.; 2348 io_blocktime = 0.;
1629 timeout_blocktime = 0.; 2349 timeout_blocktime = 0.;
1630 backend = 0; 2350 backend = 0;
1631 backend_fd = -1; 2351 backend_fd = -1;
1632 sig_pending = 0; 2352 sig_pending = 0;
1633#if EV_ASYNC_ENABLE 2353#if EV_ASYNC_ENABLE
1634 async_pending = 0; 2354 async_pending = 0;
1635#endif 2355#endif
2356 pipe_write_skipped = 0;
2357 pipe_write_wanted = 0;
1636#if EV_USE_INOTIFY 2358#if EV_USE_INOTIFY
1637 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2359 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1638#endif 2360#endif
1639#if EV_USE_SIGNALFD 2361#if EV_USE_SIGNALFD
1640 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2362 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1641#endif 2363#endif
1642 2364
1643 if (!(flags & 0x0000ffffU)) 2365 if (!(flags & EVBACKEND_MASK))
1644 flags |= ev_recommended_backends (); 2366 flags |= ev_recommended_backends ();
1645 2367
2368#if EV_USE_IOCP
2369 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2370#endif
1646#if EV_USE_PORT 2371#if EV_USE_PORT
1647 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2372 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1648#endif 2373#endif
1649#if EV_USE_KQUEUE 2374#if EV_USE_KQUEUE
1650 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2375 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1667#endif 2392#endif
1668 } 2393 }
1669} 2394}
1670 2395
1671/* free up a loop structure */ 2396/* free up a loop structure */
1672static void noinline 2397void ecb_cold
1673loop_destroy (EV_P) 2398ev_loop_destroy (EV_P)
1674{ 2399{
1675 int i; 2400 int i;
2401
2402#if EV_MULTIPLICITY
2403 /* mimic free (0) */
2404 if (!EV_A)
2405 return;
2406#endif
2407
2408#if EV_CLEANUP_ENABLE
2409 /* queue cleanup watchers (and execute them) */
2410 if (expect_false (cleanupcnt))
2411 {
2412 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2413 EV_INVOKE_PENDING;
2414 }
2415#endif
2416
2417#if EV_CHILD_ENABLE
2418 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2419 {
2420 ev_ref (EV_A); /* child watcher */
2421 ev_signal_stop (EV_A_ &childev);
2422 }
2423#endif
1676 2424
1677 if (ev_is_active (&pipe_w)) 2425 if (ev_is_active (&pipe_w))
1678 { 2426 {
1679 /*ev_ref (EV_A);*/ 2427 /*ev_ref (EV_A);*/
1680 /*ev_io_stop (EV_A_ &pipe_w);*/ 2428 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1702#endif 2450#endif
1703 2451
1704 if (backend_fd >= 0) 2452 if (backend_fd >= 0)
1705 close (backend_fd); 2453 close (backend_fd);
1706 2454
2455#if EV_USE_IOCP
2456 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2457#endif
1707#if EV_USE_PORT 2458#if EV_USE_PORT
1708 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2459 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1709#endif 2460#endif
1710#if EV_USE_KQUEUE 2461#if EV_USE_KQUEUE
1711 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2462 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1738 array_free (periodic, EMPTY); 2489 array_free (periodic, EMPTY);
1739#endif 2490#endif
1740#if EV_FORK_ENABLE 2491#if EV_FORK_ENABLE
1741 array_free (fork, EMPTY); 2492 array_free (fork, EMPTY);
1742#endif 2493#endif
2494#if EV_CLEANUP_ENABLE
2495 array_free (cleanup, EMPTY);
2496#endif
1743 array_free (prepare, EMPTY); 2497 array_free (prepare, EMPTY);
1744 array_free (check, EMPTY); 2498 array_free (check, EMPTY);
1745#if EV_ASYNC_ENABLE 2499#if EV_ASYNC_ENABLE
1746 array_free (async, EMPTY); 2500 array_free (async, EMPTY);
1747#endif 2501#endif
1748 2502
1749 backend = 0; 2503 backend = 0;
2504
2505#if EV_MULTIPLICITY
2506 if (ev_is_default_loop (EV_A))
2507#endif
2508 ev_default_loop_ptr = 0;
2509#if EV_MULTIPLICITY
2510 else
2511 ev_free (EV_A);
2512#endif
1750} 2513}
1751 2514
1752#if EV_USE_INOTIFY 2515#if EV_USE_INOTIFY
1753inline_size void infy_fork (EV_P); 2516inline_size void infy_fork (EV_P);
1754#endif 2517#endif
… …
1769 infy_fork (EV_A); 2532 infy_fork (EV_A);
1770#endif 2533#endif
1771 2534
1772 if (ev_is_active (&pipe_w)) 2535 if (ev_is_active (&pipe_w))
1773 { 2536 {
1774 /* this "locks" the handlers against writing to the pipe */ 2537 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1775 /* while we modify the fd vars */
1776 sig_pending = 1;
1777#if EV_ASYNC_ENABLE
1778 async_pending = 1;
1779#endif
1780 2538
1781 ev_ref (EV_A); 2539 ev_ref (EV_A);
1782 ev_io_stop (EV_A_ &pipe_w); 2540 ev_io_stop (EV_A_ &pipe_w);
1783 2541
1784#if EV_USE_EVENTFD 2542#if EV_USE_EVENTFD
… …
1792 EV_WIN32_CLOSE_FD (evpipe [1]); 2550 EV_WIN32_CLOSE_FD (evpipe [1]);
1793 } 2551 }
1794 2552
1795#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2553#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1796 evpipe_init (EV_A); 2554 evpipe_init (EV_A);
1797 /* now iterate over everything, in case we missed something */ 2555 /* iterate over everything, in case we missed something before */
1798 pipecb (EV_A_ &pipe_w, EV_READ); 2556 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1799#endif 2557#endif
1800 } 2558 }
1801 2559
1802 postfork = 0; 2560 postfork = 0;
1803} 2561}
1804 2562
1805#if EV_MULTIPLICITY 2563#if EV_MULTIPLICITY
1806 2564
1807struct ev_loop * 2565struct ev_loop * ecb_cold
1808ev_loop_new (unsigned int flags) 2566ev_loop_new (unsigned int flags) EV_THROW
1809{ 2567{
1810 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2568 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1811 2569
1812 memset (EV_A, 0, sizeof (struct ev_loop)); 2570 memset (EV_A, 0, sizeof (struct ev_loop));
1813 loop_init (EV_A_ flags); 2571 loop_init (EV_A_ flags);
1814 2572
1815 if (ev_backend (EV_A)) 2573 if (ev_backend (EV_A))
1816 return EV_A; 2574 return EV_A;
1817 2575
2576 ev_free (EV_A);
1818 return 0; 2577 return 0;
1819} 2578}
1820 2579
1821void
1822ev_loop_destroy (EV_P)
1823{
1824 loop_destroy (EV_A);
1825 ev_free (loop);
1826}
1827
1828void
1829ev_loop_fork (EV_P)
1830{
1831 postfork = 1; /* must be in line with ev_default_fork */
1832}
1833#endif /* multiplicity */ 2580#endif /* multiplicity */
1834 2581
1835#if EV_VERIFY 2582#if EV_VERIFY
1836static void noinline 2583static void noinline ecb_cold
1837verify_watcher (EV_P_ W w) 2584verify_watcher (EV_P_ W w)
1838{ 2585{
1839 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2586 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1840 2587
1841 if (w->pending) 2588 if (w->pending)
1842 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2589 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1843} 2590}
1844 2591
1845static void noinline 2592static void noinline ecb_cold
1846verify_heap (EV_P_ ANHE *heap, int N) 2593verify_heap (EV_P_ ANHE *heap, int N)
1847{ 2594{
1848 int i; 2595 int i;
1849 2596
1850 for (i = HEAP0; i < N + HEAP0; ++i) 2597 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1855 2602
1856 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2603 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1857 } 2604 }
1858} 2605}
1859 2606
1860static void noinline 2607static void noinline ecb_cold
1861array_verify (EV_P_ W *ws, int cnt) 2608array_verify (EV_P_ W *ws, int cnt)
1862{ 2609{
1863 while (cnt--) 2610 while (cnt--)
1864 { 2611 {
1865 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2612 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
1867 } 2614 }
1868} 2615}
1869#endif 2616#endif
1870 2617
1871#if EV_FEATURE_API 2618#if EV_FEATURE_API
1872void 2619void ecb_cold
1873ev_loop_verify (EV_P) 2620ev_verify (EV_P) EV_THROW
1874{ 2621{
1875#if EV_VERIFY 2622#if EV_VERIFY
1876 int i; 2623 int i;
1877 WL w; 2624 WL w, w2;
1878 2625
1879 assert (activecnt >= -1); 2626 assert (activecnt >= -1);
1880 2627
1881 assert (fdchangemax >= fdchangecnt); 2628 assert (fdchangemax >= fdchangecnt);
1882 for (i = 0; i < fdchangecnt; ++i) 2629 for (i = 0; i < fdchangecnt; ++i)
1883 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2630 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1884 2631
1885 assert (anfdmax >= 0); 2632 assert (anfdmax >= 0);
1886 for (i = 0; i < anfdmax; ++i) 2633 for (i = 0; i < anfdmax; ++i)
2634 {
2635 int j = 0;
2636
1887 for (w = anfds [i].head; w; w = w->next) 2637 for (w = w2 = anfds [i].head; w; w = w->next)
1888 { 2638 {
1889 verify_watcher (EV_A_ (W)w); 2639 verify_watcher (EV_A_ (W)w);
2640
2641 if (j++ & 1)
2642 {
2643 assert (("libev: io watcher list contains a loop", w != w2));
2644 w2 = w2->next;
2645 }
2646
1890 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2647 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1891 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2648 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1892 } 2649 }
2650 }
1893 2651
1894 assert (timermax >= timercnt); 2652 assert (timermax >= timercnt);
1895 verify_heap (EV_A_ timers, timercnt); 2653 verify_heap (EV_A_ timers, timercnt);
1896 2654
1897#if EV_PERIODIC_ENABLE 2655#if EV_PERIODIC_ENABLE
… …
1912#if EV_FORK_ENABLE 2670#if EV_FORK_ENABLE
1913 assert (forkmax >= forkcnt); 2671 assert (forkmax >= forkcnt);
1914 array_verify (EV_A_ (W *)forks, forkcnt); 2672 array_verify (EV_A_ (W *)forks, forkcnt);
1915#endif 2673#endif
1916 2674
2675#if EV_CLEANUP_ENABLE
2676 assert (cleanupmax >= cleanupcnt);
2677 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2678#endif
2679
1917#if EV_ASYNC_ENABLE 2680#if EV_ASYNC_ENABLE
1918 assert (asyncmax >= asynccnt); 2681 assert (asyncmax >= asynccnt);
1919 array_verify (EV_A_ (W *)asyncs, asynccnt); 2682 array_verify (EV_A_ (W *)asyncs, asynccnt);
1920#endif 2683#endif
1921 2684
… …
1938#endif 2701#endif
1939} 2702}
1940#endif 2703#endif
1941 2704
1942#if EV_MULTIPLICITY 2705#if EV_MULTIPLICITY
1943struct ev_loop * 2706struct ev_loop * ecb_cold
1944ev_default_loop_init (unsigned int flags)
1945#else 2707#else
1946int 2708int
2709#endif
1947ev_default_loop (unsigned int flags) 2710ev_default_loop (unsigned int flags) EV_THROW
1948#endif
1949{ 2711{
1950 if (!ev_default_loop_ptr) 2712 if (!ev_default_loop_ptr)
1951 { 2713 {
1952#if EV_MULTIPLICITY 2714#if EV_MULTIPLICITY
1953 EV_P = ev_default_loop_ptr = &default_loop_struct; 2715 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1972 2734
1973 return ev_default_loop_ptr; 2735 return ev_default_loop_ptr;
1974} 2736}
1975 2737
1976void 2738void
1977ev_default_destroy (void) 2739ev_loop_fork (EV_P) EV_THROW
1978{ 2740{
1979#if EV_MULTIPLICITY 2741 postfork = 1;
1980 EV_P = ev_default_loop_ptr;
1981#endif
1982
1983 ev_default_loop_ptr = 0;
1984
1985#if EV_CHILD_ENABLE
1986 ev_ref (EV_A); /* child watcher */
1987 ev_signal_stop (EV_A_ &childev);
1988#endif
1989
1990 loop_destroy (EV_A);
1991}
1992
1993void
1994ev_default_fork (void)
1995{
1996#if EV_MULTIPLICITY
1997 EV_P = ev_default_loop_ptr;
1998#endif
1999
2000 postfork = 1; /* must be in line with ev_loop_fork */
2001} 2742}
2002 2743
2003/*****************************************************************************/ 2744/*****************************************************************************/
2004 2745
2005void 2746void
… …
2007{ 2748{
2008 EV_CB_INVOKE ((W)w, revents); 2749 EV_CB_INVOKE ((W)w, revents);
2009} 2750}
2010 2751
2011unsigned int 2752unsigned int
2012ev_pending_count (EV_P) 2753ev_pending_count (EV_P) EV_THROW
2013{ 2754{
2014 int pri; 2755 int pri;
2015 unsigned int count = 0; 2756 unsigned int count = 0;
2016 2757
2017 for (pri = NUMPRI; pri--; ) 2758 for (pri = NUMPRI; pri--; )
… …
2021} 2762}
2022 2763
2023void noinline 2764void noinline
2024ev_invoke_pending (EV_P) 2765ev_invoke_pending (EV_P)
2025{ 2766{
2026 int pri; 2767 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2027
2028 for (pri = NUMPRI; pri--; )
2029 while (pendingcnt [pri]) 2768 while (pendingcnt [pendingpri])
2030 { 2769 {
2031 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2770 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2032
2033 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2034 /* ^ this is no longer true, as pending_w could be here */
2035 2771
2036 p->w->pending = 0; 2772 p->w->pending = 0;
2037 EV_CB_INVOKE (p->w, p->events); 2773 EV_CB_INVOKE (p->w, p->events);
2038 EV_FREQUENT_CHECK; 2774 EV_FREQUENT_CHECK;
2039 } 2775 }
… …
2096 EV_FREQUENT_CHECK; 2832 EV_FREQUENT_CHECK;
2097 feed_reverse (EV_A_ (W)w); 2833 feed_reverse (EV_A_ (W)w);
2098 } 2834 }
2099 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2835 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2100 2836
2101 feed_reverse_done (EV_A_ EV_TIMEOUT); 2837 feed_reverse_done (EV_A_ EV_TIMER);
2102 } 2838 }
2103} 2839}
2104 2840
2105#if EV_PERIODIC_ENABLE 2841#if EV_PERIODIC_ENABLE
2842
2843static void noinline
2844periodic_recalc (EV_P_ ev_periodic *w)
2845{
2846 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2847 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2848
2849 /* the above almost always errs on the low side */
2850 while (at <= ev_rt_now)
2851 {
2852 ev_tstamp nat = at + w->interval;
2853
2854 /* when resolution fails us, we use ev_rt_now */
2855 if (expect_false (nat == at))
2856 {
2857 at = ev_rt_now;
2858 break;
2859 }
2860
2861 at = nat;
2862 }
2863
2864 ev_at (w) = at;
2865}
2866
2106/* make periodics pending */ 2867/* make periodics pending */
2107inline_size void 2868inline_size void
2108periodics_reify (EV_P) 2869periodics_reify (EV_P)
2109{ 2870{
2110 EV_FREQUENT_CHECK; 2871 EV_FREQUENT_CHECK;
2111 2872
2112 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2873 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2113 { 2874 {
2114 int feed_count = 0;
2115
2116 do 2875 do
2117 { 2876 {
2118 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2877 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2119 2878
2120 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2879 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2129 ANHE_at_cache (periodics [HEAP0]); 2888 ANHE_at_cache (periodics [HEAP0]);
2130 downheap (periodics, periodiccnt, HEAP0); 2889 downheap (periodics, periodiccnt, HEAP0);
2131 } 2890 }
2132 else if (w->interval) 2891 else if (w->interval)
2133 { 2892 {
2134 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2893 periodic_recalc (EV_A_ w);
2135 /* if next trigger time is not sufficiently in the future, put it there */
2136 /* this might happen because of floating point inexactness */
2137 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2138 {
2139 ev_at (w) += w->interval;
2140
2141 /* if interval is unreasonably low we might still have a time in the past */
2142 /* so correct this. this will make the periodic very inexact, but the user */
2143 /* has effectively asked to get triggered more often than possible */
2144 if (ev_at (w) < ev_rt_now)
2145 ev_at (w) = ev_rt_now;
2146 }
2147
2148 ANHE_at_cache (periodics [HEAP0]); 2894 ANHE_at_cache (periodics [HEAP0]);
2149 downheap (periodics, periodiccnt, HEAP0); 2895 downheap (periodics, periodiccnt, HEAP0);
2150 } 2896 }
2151 else 2897 else
2152 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2898 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2159 feed_reverse_done (EV_A_ EV_PERIODIC); 2905 feed_reverse_done (EV_A_ EV_PERIODIC);
2160 } 2906 }
2161} 2907}
2162 2908
2163/* simply recalculate all periodics */ 2909/* simply recalculate all periodics */
2164/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2910/* TODO: maybe ensure that at least one event happens when jumping forward? */
2165static void noinline 2911static void noinline ecb_cold
2166periodics_reschedule (EV_P) 2912periodics_reschedule (EV_P)
2167{ 2913{
2168 int i; 2914 int i;
2169 2915
2170 /* adjust periodics after time jump */ 2916 /* adjust periodics after time jump */
… …
2173 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2919 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2174 2920
2175 if (w->reschedule_cb) 2921 if (w->reschedule_cb)
2176 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2922 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2177 else if (w->interval) 2923 else if (w->interval)
2178 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2924 periodic_recalc (EV_A_ w);
2179 2925
2180 ANHE_at_cache (periodics [i]); 2926 ANHE_at_cache (periodics [i]);
2181 } 2927 }
2182 2928
2183 reheap (periodics, periodiccnt); 2929 reheap (periodics, periodiccnt);
2184} 2930}
2185#endif 2931#endif
2186 2932
2187/* adjust all timers by a given offset */ 2933/* adjust all timers by a given offset */
2188static void noinline 2934static void noinline ecb_cold
2189timers_reschedule (EV_P_ ev_tstamp adjust) 2935timers_reschedule (EV_P_ ev_tstamp adjust)
2190{ 2936{
2191 int i; 2937 int i;
2192 2938
2193 for (i = 0; i < timercnt; ++i) 2939 for (i = 0; i < timercnt; ++i)
… …
2230 * doesn't hurt either as we only do this on time-jumps or 2976 * doesn't hurt either as we only do this on time-jumps or
2231 * in the unlikely event of having been preempted here. 2977 * in the unlikely event of having been preempted here.
2232 */ 2978 */
2233 for (i = 4; --i; ) 2979 for (i = 4; --i; )
2234 { 2980 {
2981 ev_tstamp diff;
2235 rtmn_diff = ev_rt_now - mn_now; 2982 rtmn_diff = ev_rt_now - mn_now;
2236 2983
2984 diff = odiff - rtmn_diff;
2985
2237 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2986 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2238 return; /* all is well */ 2987 return; /* all is well */
2239 2988
2240 ev_rt_now = ev_time (); 2989 ev_rt_now = ev_time ();
2241 mn_now = get_clock (); 2990 mn_now = get_clock ();
2242 now_floor = mn_now; 2991 now_floor = mn_now;
… …
2264 3013
2265 mn_now = ev_rt_now; 3014 mn_now = ev_rt_now;
2266 } 3015 }
2267} 3016}
2268 3017
2269void 3018int
2270ev_loop (EV_P_ int flags) 3019ev_run (EV_P_ int flags)
2271{ 3020{
2272#if EV_FEATURE_API 3021#if EV_FEATURE_API
2273 ++loop_depth; 3022 ++loop_depth;
2274#endif 3023#endif
2275 3024
2276 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 3025 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2277 3026
2278 loop_done = EVUNLOOP_CANCEL; 3027 loop_done = EVBREAK_CANCEL;
2279 3028
2280 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 3029 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2281 3030
2282 do 3031 do
2283 { 3032 {
2284#if EV_VERIFY >= 2 3033#if EV_VERIFY >= 2
2285 ev_loop_verify (EV_A); 3034 ev_verify (EV_A);
2286#endif 3035#endif
2287 3036
2288#ifndef _WIN32 3037#ifndef _WIN32
2289 if (expect_false (curpid)) /* penalise the forking check even more */ 3038 if (expect_false (curpid)) /* penalise the forking check even more */
2290 if (expect_false (getpid () != curpid)) 3039 if (expect_false (getpid () != curpid))
… …
2326 /* calculate blocking time */ 3075 /* calculate blocking time */
2327 { 3076 {
2328 ev_tstamp waittime = 0.; 3077 ev_tstamp waittime = 0.;
2329 ev_tstamp sleeptime = 0.; 3078 ev_tstamp sleeptime = 0.;
2330 3079
3080 /* remember old timestamp for io_blocktime calculation */
3081 ev_tstamp prev_mn_now = mn_now;
3082
3083 /* update time to cancel out callback processing overhead */
3084 time_update (EV_A_ 1e100);
3085
3086 /* from now on, we want a pipe-wake-up */
3087 pipe_write_wanted = 1;
3088
3089 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3090
2331 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3091 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2332 { 3092 {
2333 /* remember old timestamp for io_blocktime calculation */
2334 ev_tstamp prev_mn_now = mn_now;
2335
2336 /* update time to cancel out callback processing overhead */
2337 time_update (EV_A_ 1e100);
2338
2339 waittime = MAX_BLOCKTIME; 3093 waittime = MAX_BLOCKTIME;
2340 3094
2341 if (timercnt) 3095 if (timercnt)
2342 { 3096 {
2343 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3097 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2344 if (waittime > to) waittime = to; 3098 if (waittime > to) waittime = to;
2345 } 3099 }
2346 3100
2347#if EV_PERIODIC_ENABLE 3101#if EV_PERIODIC_ENABLE
2348 if (periodiccnt) 3102 if (periodiccnt)
2349 { 3103 {
2350 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3104 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2351 if (waittime > to) waittime = to; 3105 if (waittime > to) waittime = to;
2352 } 3106 }
2353#endif 3107#endif
2354 3108
2355 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3109 /* don't let timeouts decrease the waittime below timeout_blocktime */
2356 if (expect_false (waittime < timeout_blocktime)) 3110 if (expect_false (waittime < timeout_blocktime))
2357 waittime = timeout_blocktime; 3111 waittime = timeout_blocktime;
3112
3113 /* at this point, we NEED to wait, so we have to ensure */
3114 /* to pass a minimum nonzero value to the backend */
3115 if (expect_false (waittime < backend_mintime))
3116 waittime = backend_mintime;
2358 3117
2359 /* extra check because io_blocktime is commonly 0 */ 3118 /* extra check because io_blocktime is commonly 0 */
2360 if (expect_false (io_blocktime)) 3119 if (expect_false (io_blocktime))
2361 { 3120 {
2362 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3121 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2363 3122
2364 if (sleeptime > waittime - backend_fudge) 3123 if (sleeptime > waittime - backend_mintime)
2365 sleeptime = waittime - backend_fudge; 3124 sleeptime = waittime - backend_mintime;
2366 3125
2367 if (expect_true (sleeptime > 0.)) 3126 if (expect_true (sleeptime > 0.))
2368 { 3127 {
2369 ev_sleep (sleeptime); 3128 ev_sleep (sleeptime);
2370 waittime -= sleeptime; 3129 waittime -= sleeptime;
… …
2373 } 3132 }
2374 3133
2375#if EV_FEATURE_API 3134#if EV_FEATURE_API
2376 ++loop_count; 3135 ++loop_count;
2377#endif 3136#endif
2378 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3137 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2379 backend_poll (EV_A_ waittime); 3138 backend_poll (EV_A_ waittime);
2380 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3139 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3140
3141 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3142
3143 ECB_MEMORY_FENCE_ACQUIRE;
3144 if (pipe_write_skipped)
3145 {
3146 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3147 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3148 }
3149
2381 3150
2382 /* update ev_rt_now, do magic */ 3151 /* update ev_rt_now, do magic */
2383 time_update (EV_A_ waittime + sleeptime); 3152 time_update (EV_A_ waittime + sleeptime);
2384 } 3153 }
2385 3154
… …
2403 EV_INVOKE_PENDING; 3172 EV_INVOKE_PENDING;
2404 } 3173 }
2405 while (expect_true ( 3174 while (expect_true (
2406 activecnt 3175 activecnt
2407 && !loop_done 3176 && !loop_done
2408 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3177 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2409 )); 3178 ));
2410 3179
2411 if (loop_done == EVUNLOOP_ONE) 3180 if (loop_done == EVBREAK_ONE)
2412 loop_done = EVUNLOOP_CANCEL; 3181 loop_done = EVBREAK_CANCEL;
2413 3182
2414#if EV_FEATURE_API 3183#if EV_FEATURE_API
2415 --loop_depth; 3184 --loop_depth;
2416#endif 3185#endif
3186
3187 return activecnt;
2417} 3188}
2418 3189
2419void 3190void
2420ev_unloop (EV_P_ int how) 3191ev_break (EV_P_ int how) EV_THROW
2421{ 3192{
2422 loop_done = how; 3193 loop_done = how;
2423} 3194}
2424 3195
2425void 3196void
2426ev_ref (EV_P) 3197ev_ref (EV_P) EV_THROW
2427{ 3198{
2428 ++activecnt; 3199 ++activecnt;
2429} 3200}
2430 3201
2431void 3202void
2432ev_unref (EV_P) 3203ev_unref (EV_P) EV_THROW
2433{ 3204{
2434 --activecnt; 3205 --activecnt;
2435} 3206}
2436 3207
2437void 3208void
2438ev_now_update (EV_P) 3209ev_now_update (EV_P) EV_THROW
2439{ 3210{
2440 time_update (EV_A_ 1e100); 3211 time_update (EV_A_ 1e100);
2441} 3212}
2442 3213
2443void 3214void
2444ev_suspend (EV_P) 3215ev_suspend (EV_P) EV_THROW
2445{ 3216{
2446 ev_now_update (EV_A); 3217 ev_now_update (EV_A);
2447} 3218}
2448 3219
2449void 3220void
2450ev_resume (EV_P) 3221ev_resume (EV_P) EV_THROW
2451{ 3222{
2452 ev_tstamp mn_prev = mn_now; 3223 ev_tstamp mn_prev = mn_now;
2453 3224
2454 ev_now_update (EV_A); 3225 ev_now_update (EV_A);
2455 timers_reschedule (EV_A_ mn_now - mn_prev); 3226 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2494 w->pending = 0; 3265 w->pending = 0;
2495 } 3266 }
2496} 3267}
2497 3268
2498int 3269int
2499ev_clear_pending (EV_P_ void *w) 3270ev_clear_pending (EV_P_ void *w) EV_THROW
2500{ 3271{
2501 W w_ = (W)w; 3272 W w_ = (W)w;
2502 int pending = w_->pending; 3273 int pending = w_->pending;
2503 3274
2504 if (expect_true (pending)) 3275 if (expect_true (pending))
… …
2537} 3308}
2538 3309
2539/*****************************************************************************/ 3310/*****************************************************************************/
2540 3311
2541void noinline 3312void noinline
2542ev_io_start (EV_P_ ev_io *w) 3313ev_io_start (EV_P_ ev_io *w) EV_THROW
2543{ 3314{
2544 int fd = w->fd; 3315 int fd = w->fd;
2545 3316
2546 if (expect_false (ev_is_active (w))) 3317 if (expect_false (ev_is_active (w)))
2547 return; 3318 return;
… …
2553 3324
2554 ev_start (EV_A_ (W)w, 1); 3325 ev_start (EV_A_ (W)w, 1);
2555 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3326 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2556 wlist_add (&anfds[fd].head, (WL)w); 3327 wlist_add (&anfds[fd].head, (WL)w);
2557 3328
3329 /* common bug, apparently */
3330 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3331
2558 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3332 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2559 w->events &= ~EV__IOFDSET; 3333 w->events &= ~EV__IOFDSET;
2560 3334
2561 EV_FREQUENT_CHECK; 3335 EV_FREQUENT_CHECK;
2562} 3336}
2563 3337
2564void noinline 3338void noinline
2565ev_io_stop (EV_P_ ev_io *w) 3339ev_io_stop (EV_P_ ev_io *w) EV_THROW
2566{ 3340{
2567 clear_pending (EV_A_ (W)w); 3341 clear_pending (EV_A_ (W)w);
2568 if (expect_false (!ev_is_active (w))) 3342 if (expect_false (!ev_is_active (w)))
2569 return; 3343 return;
2570 3344
… …
2573 EV_FREQUENT_CHECK; 3347 EV_FREQUENT_CHECK;
2574 3348
2575 wlist_del (&anfds[w->fd].head, (WL)w); 3349 wlist_del (&anfds[w->fd].head, (WL)w);
2576 ev_stop (EV_A_ (W)w); 3350 ev_stop (EV_A_ (W)w);
2577 3351
2578 fd_change (EV_A_ w->fd, 1); 3352 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2579 3353
2580 EV_FREQUENT_CHECK; 3354 EV_FREQUENT_CHECK;
2581} 3355}
2582 3356
2583void noinline 3357void noinline
2584ev_timer_start (EV_P_ ev_timer *w) 3358ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2585{ 3359{
2586 if (expect_false (ev_is_active (w))) 3360 if (expect_false (ev_is_active (w)))
2587 return; 3361 return;
2588 3362
2589 ev_at (w) += mn_now; 3363 ev_at (w) += mn_now;
… …
2603 3377
2604 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3378 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2605} 3379}
2606 3380
2607void noinline 3381void noinline
2608ev_timer_stop (EV_P_ ev_timer *w) 3382ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2609{ 3383{
2610 clear_pending (EV_A_ (W)w); 3384 clear_pending (EV_A_ (W)w);
2611 if (expect_false (!ev_is_active (w))) 3385 if (expect_false (!ev_is_active (w)))
2612 return; 3386 return;
2613 3387
… …
2633 3407
2634 EV_FREQUENT_CHECK; 3408 EV_FREQUENT_CHECK;
2635} 3409}
2636 3410
2637void noinline 3411void noinline
2638ev_timer_again (EV_P_ ev_timer *w) 3412ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2639{ 3413{
2640 EV_FREQUENT_CHECK; 3414 EV_FREQUENT_CHECK;
3415
3416 clear_pending (EV_A_ (W)w);
2641 3417
2642 if (ev_is_active (w)) 3418 if (ev_is_active (w))
2643 { 3419 {
2644 if (w->repeat) 3420 if (w->repeat)
2645 { 3421 {
… …
2658 3434
2659 EV_FREQUENT_CHECK; 3435 EV_FREQUENT_CHECK;
2660} 3436}
2661 3437
2662ev_tstamp 3438ev_tstamp
2663ev_timer_remaining (EV_P_ ev_timer *w) 3439ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2664{ 3440{
2665 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3441 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2666} 3442}
2667 3443
2668#if EV_PERIODIC_ENABLE 3444#if EV_PERIODIC_ENABLE
2669void noinline 3445void noinline
2670ev_periodic_start (EV_P_ ev_periodic *w) 3446ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2671{ 3447{
2672 if (expect_false (ev_is_active (w))) 3448 if (expect_false (ev_is_active (w)))
2673 return; 3449 return;
2674 3450
2675 if (w->reschedule_cb) 3451 if (w->reschedule_cb)
2676 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3452 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2677 else if (w->interval) 3453 else if (w->interval)
2678 { 3454 {
2679 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3455 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2680 /* this formula differs from the one in periodic_reify because we do not always round up */ 3456 periodic_recalc (EV_A_ w);
2681 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2682 } 3457 }
2683 else 3458 else
2684 ev_at (w) = w->offset; 3459 ev_at (w) = w->offset;
2685 3460
2686 EV_FREQUENT_CHECK; 3461 EV_FREQUENT_CHECK;
… …
2696 3471
2697 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3472 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2698} 3473}
2699 3474
2700void noinline 3475void noinline
2701ev_periodic_stop (EV_P_ ev_periodic *w) 3476ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2702{ 3477{
2703 clear_pending (EV_A_ (W)w); 3478 clear_pending (EV_A_ (W)w);
2704 if (expect_false (!ev_is_active (w))) 3479 if (expect_false (!ev_is_active (w)))
2705 return; 3480 return;
2706 3481
… …
2724 3499
2725 EV_FREQUENT_CHECK; 3500 EV_FREQUENT_CHECK;
2726} 3501}
2727 3502
2728void noinline 3503void noinline
2729ev_periodic_again (EV_P_ ev_periodic *w) 3504ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2730{ 3505{
2731 /* TODO: use adjustheap and recalculation */ 3506 /* TODO: use adjustheap and recalculation */
2732 ev_periodic_stop (EV_A_ w); 3507 ev_periodic_stop (EV_A_ w);
2733 ev_periodic_start (EV_A_ w); 3508 ev_periodic_start (EV_A_ w);
2734} 3509}
… …
2739#endif 3514#endif
2740 3515
2741#if EV_SIGNAL_ENABLE 3516#if EV_SIGNAL_ENABLE
2742 3517
2743void noinline 3518void noinline
2744ev_signal_start (EV_P_ ev_signal *w) 3519ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2745{ 3520{
2746 if (expect_false (ev_is_active (w))) 3521 if (expect_false (ev_is_active (w)))
2747 return; 3522 return;
2748 3523
2749 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3524 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2807 sa.sa_handler = ev_sighandler; 3582 sa.sa_handler = ev_sighandler;
2808 sigfillset (&sa.sa_mask); 3583 sigfillset (&sa.sa_mask);
2809 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3584 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2810 sigaction (w->signum, &sa, 0); 3585 sigaction (w->signum, &sa, 0);
2811 3586
3587 if (origflags & EVFLAG_NOSIGMASK)
3588 {
2812 sigemptyset (&sa.sa_mask); 3589 sigemptyset (&sa.sa_mask);
2813 sigaddset (&sa.sa_mask, w->signum); 3590 sigaddset (&sa.sa_mask, w->signum);
2814 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3591 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3592 }
2815#endif 3593#endif
2816 } 3594 }
2817 3595
2818 EV_FREQUENT_CHECK; 3596 EV_FREQUENT_CHECK;
2819} 3597}
2820 3598
2821void noinline 3599void noinline
2822ev_signal_stop (EV_P_ ev_signal *w) 3600ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2823{ 3601{
2824 clear_pending (EV_A_ (W)w); 3602 clear_pending (EV_A_ (W)w);
2825 if (expect_false (!ev_is_active (w))) 3603 if (expect_false (!ev_is_active (w)))
2826 return; 3604 return;
2827 3605
… …
2858#endif 3636#endif
2859 3637
2860#if EV_CHILD_ENABLE 3638#if EV_CHILD_ENABLE
2861 3639
2862void 3640void
2863ev_child_start (EV_P_ ev_child *w) 3641ev_child_start (EV_P_ ev_child *w) EV_THROW
2864{ 3642{
2865#if EV_MULTIPLICITY 3643#if EV_MULTIPLICITY
2866 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3644 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2867#endif 3645#endif
2868 if (expect_false (ev_is_active (w))) 3646 if (expect_false (ev_is_active (w)))
… …
2875 3653
2876 EV_FREQUENT_CHECK; 3654 EV_FREQUENT_CHECK;
2877} 3655}
2878 3656
2879void 3657void
2880ev_child_stop (EV_P_ ev_child *w) 3658ev_child_stop (EV_P_ ev_child *w) EV_THROW
2881{ 3659{
2882 clear_pending (EV_A_ (W)w); 3660 clear_pending (EV_A_ (W)w);
2883 if (expect_false (!ev_is_active (w))) 3661 if (expect_false (!ev_is_active (w)))
2884 return; 3662 return;
2885 3663
… …
2960 if (!pend || pend == path) 3738 if (!pend || pend == path)
2961 break; 3739 break;
2962 3740
2963 *pend = 0; 3741 *pend = 0;
2964 w->wd = inotify_add_watch (fs_fd, path, mask); 3742 w->wd = inotify_add_watch (fs_fd, path, mask);
2965 } 3743 }
2966 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3744 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2967 } 3745 }
2968 } 3746 }
2969 3747
2970 if (w->wd >= 0) 3748 if (w->wd >= 0)
… …
3037 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3815 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3038 ofs += sizeof (struct inotify_event) + ev->len; 3816 ofs += sizeof (struct inotify_event) + ev->len;
3039 } 3817 }
3040} 3818}
3041 3819
3042inline_size unsigned int
3043ev_linux_version (void)
3044{
3045 struct utsname buf;
3046 unsigned int v;
3047 int i;
3048 char *p = buf.release;
3049
3050 if (uname (&buf))
3051 return 0;
3052
3053 for (i = 3+1; --i; )
3054 {
3055 unsigned int c = 0;
3056
3057 for (;;)
3058 {
3059 if (*p >= '0' && *p <= '9')
3060 c = c * 10 + *p++ - '0';
3061 else
3062 {
3063 p += *p == '.';
3064 break;
3065 }
3066 }
3067
3068 v = (v << 8) | c;
3069 }
3070
3071 return v;
3072}
3073
3074inline_size void 3820inline_size void ecb_cold
3075ev_check_2625 (EV_P) 3821ev_check_2625 (EV_P)
3076{ 3822{
3077 /* kernels < 2.6.25 are borked 3823 /* kernels < 2.6.25 are borked
3078 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3824 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3079 */ 3825 */
… …
3084} 3830}
3085 3831
3086inline_size int 3832inline_size int
3087infy_newfd (void) 3833infy_newfd (void)
3088{ 3834{
3089#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3835#if defined IN_CLOEXEC && defined IN_NONBLOCK
3090 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3836 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3091 if (fd >= 0) 3837 if (fd >= 0)
3092 return fd; 3838 return fd;
3093#endif 3839#endif
3094 return inotify_init (); 3840 return inotify_init ();
… …
3169#else 3915#else
3170# define EV_LSTAT(p,b) lstat (p, b) 3916# define EV_LSTAT(p,b) lstat (p, b)
3171#endif 3917#endif
3172 3918
3173void 3919void
3174ev_stat_stat (EV_P_ ev_stat *w) 3920ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3175{ 3921{
3176 if (lstat (w->path, &w->attr) < 0) 3922 if (lstat (w->path, &w->attr) < 0)
3177 w->attr.st_nlink = 0; 3923 w->attr.st_nlink = 0;
3178 else if (!w->attr.st_nlink) 3924 else if (!w->attr.st_nlink)
3179 w->attr.st_nlink = 1; 3925 w->attr.st_nlink = 1;
… …
3218 ev_feed_event (EV_A_ w, EV_STAT); 3964 ev_feed_event (EV_A_ w, EV_STAT);
3219 } 3965 }
3220} 3966}
3221 3967
3222void 3968void
3223ev_stat_start (EV_P_ ev_stat *w) 3969ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3224{ 3970{
3225 if (expect_false (ev_is_active (w))) 3971 if (expect_false (ev_is_active (w)))
3226 return; 3972 return;
3227 3973
3228 ev_stat_stat (EV_A_ w); 3974 ev_stat_stat (EV_A_ w);
… …
3249 3995
3250 EV_FREQUENT_CHECK; 3996 EV_FREQUENT_CHECK;
3251} 3997}
3252 3998
3253void 3999void
3254ev_stat_stop (EV_P_ ev_stat *w) 4000ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3255{ 4001{
3256 clear_pending (EV_A_ (W)w); 4002 clear_pending (EV_A_ (W)w);
3257 if (expect_false (!ev_is_active (w))) 4003 if (expect_false (!ev_is_active (w)))
3258 return; 4004 return;
3259 4005
… …
3275} 4021}
3276#endif 4022#endif
3277 4023
3278#if EV_IDLE_ENABLE 4024#if EV_IDLE_ENABLE
3279void 4025void
3280ev_idle_start (EV_P_ ev_idle *w) 4026ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3281{ 4027{
3282 if (expect_false (ev_is_active (w))) 4028 if (expect_false (ev_is_active (w)))
3283 return; 4029 return;
3284 4030
3285 pri_adjust (EV_A_ (W)w); 4031 pri_adjust (EV_A_ (W)w);
… …
3298 4044
3299 EV_FREQUENT_CHECK; 4045 EV_FREQUENT_CHECK;
3300} 4046}
3301 4047
3302void 4048void
3303ev_idle_stop (EV_P_ ev_idle *w) 4049ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3304{ 4050{
3305 clear_pending (EV_A_ (W)w); 4051 clear_pending (EV_A_ (W)w);
3306 if (expect_false (!ev_is_active (w))) 4052 if (expect_false (!ev_is_active (w)))
3307 return; 4053 return;
3308 4054
… …
3322} 4068}
3323#endif 4069#endif
3324 4070
3325#if EV_PREPARE_ENABLE 4071#if EV_PREPARE_ENABLE
3326void 4072void
3327ev_prepare_start (EV_P_ ev_prepare *w) 4073ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3328{ 4074{
3329 if (expect_false (ev_is_active (w))) 4075 if (expect_false (ev_is_active (w)))
3330 return; 4076 return;
3331 4077
3332 EV_FREQUENT_CHECK; 4078 EV_FREQUENT_CHECK;
… …
3337 4083
3338 EV_FREQUENT_CHECK; 4084 EV_FREQUENT_CHECK;
3339} 4085}
3340 4086
3341void 4087void
3342ev_prepare_stop (EV_P_ ev_prepare *w) 4088ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3343{ 4089{
3344 clear_pending (EV_A_ (W)w); 4090 clear_pending (EV_A_ (W)w);
3345 if (expect_false (!ev_is_active (w))) 4091 if (expect_false (!ev_is_active (w)))
3346 return; 4092 return;
3347 4093
… …
3360} 4106}
3361#endif 4107#endif
3362 4108
3363#if EV_CHECK_ENABLE 4109#if EV_CHECK_ENABLE
3364void 4110void
3365ev_check_start (EV_P_ ev_check *w) 4111ev_check_start (EV_P_ ev_check *w) EV_THROW
3366{ 4112{
3367 if (expect_false (ev_is_active (w))) 4113 if (expect_false (ev_is_active (w)))
3368 return; 4114 return;
3369 4115
3370 EV_FREQUENT_CHECK; 4116 EV_FREQUENT_CHECK;
… …
3375 4121
3376 EV_FREQUENT_CHECK; 4122 EV_FREQUENT_CHECK;
3377} 4123}
3378 4124
3379void 4125void
3380ev_check_stop (EV_P_ ev_check *w) 4126ev_check_stop (EV_P_ ev_check *w) EV_THROW
3381{ 4127{
3382 clear_pending (EV_A_ (W)w); 4128 clear_pending (EV_A_ (W)w);
3383 if (expect_false (!ev_is_active (w))) 4129 if (expect_false (!ev_is_active (w)))
3384 return; 4130 return;
3385 4131
… …
3398} 4144}
3399#endif 4145#endif
3400 4146
3401#if EV_EMBED_ENABLE 4147#if EV_EMBED_ENABLE
3402void noinline 4148void noinline
3403ev_embed_sweep (EV_P_ ev_embed *w) 4149ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3404{ 4150{
3405 ev_loop (w->other, EVLOOP_NONBLOCK); 4151 ev_run (w->other, EVRUN_NOWAIT);
3406} 4152}
3407 4153
3408static void 4154static void
3409embed_io_cb (EV_P_ ev_io *io, int revents) 4155embed_io_cb (EV_P_ ev_io *io, int revents)
3410{ 4156{
3411 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4157 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3412 4158
3413 if (ev_cb (w)) 4159 if (ev_cb (w))
3414 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4160 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3415 else 4161 else
3416 ev_loop (w->other, EVLOOP_NONBLOCK); 4162 ev_run (w->other, EVRUN_NOWAIT);
3417} 4163}
3418 4164
3419static void 4165static void
3420embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4166embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3421{ 4167{
… …
3425 EV_P = w->other; 4171 EV_P = w->other;
3426 4172
3427 while (fdchangecnt) 4173 while (fdchangecnt)
3428 { 4174 {
3429 fd_reify (EV_A); 4175 fd_reify (EV_A);
3430 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4176 ev_run (EV_A_ EVRUN_NOWAIT);
3431 } 4177 }
3432 } 4178 }
3433} 4179}
3434 4180
3435static void 4181static void
… …
3441 4187
3442 { 4188 {
3443 EV_P = w->other; 4189 EV_P = w->other;
3444 4190
3445 ev_loop_fork (EV_A); 4191 ev_loop_fork (EV_A);
3446 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4192 ev_run (EV_A_ EVRUN_NOWAIT);
3447 } 4193 }
3448 4194
3449 ev_embed_start (EV_A_ w); 4195 ev_embed_start (EV_A_ w);
3450} 4196}
3451 4197
… …
3456 ev_idle_stop (EV_A_ idle); 4202 ev_idle_stop (EV_A_ idle);
3457} 4203}
3458#endif 4204#endif
3459 4205
3460void 4206void
3461ev_embed_start (EV_P_ ev_embed *w) 4207ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3462{ 4208{
3463 if (expect_false (ev_is_active (w))) 4209 if (expect_false (ev_is_active (w)))
3464 return; 4210 return;
3465 4211
3466 { 4212 {
… …
3487 4233
3488 EV_FREQUENT_CHECK; 4234 EV_FREQUENT_CHECK;
3489} 4235}
3490 4236
3491void 4237void
3492ev_embed_stop (EV_P_ ev_embed *w) 4238ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3493{ 4239{
3494 clear_pending (EV_A_ (W)w); 4240 clear_pending (EV_A_ (W)w);
3495 if (expect_false (!ev_is_active (w))) 4241 if (expect_false (!ev_is_active (w)))
3496 return; 4242 return;
3497 4243
… …
3507} 4253}
3508#endif 4254#endif
3509 4255
3510#if EV_FORK_ENABLE 4256#if EV_FORK_ENABLE
3511void 4257void
3512ev_fork_start (EV_P_ ev_fork *w) 4258ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3513{ 4259{
3514 if (expect_false (ev_is_active (w))) 4260 if (expect_false (ev_is_active (w)))
3515 return; 4261 return;
3516 4262
3517 EV_FREQUENT_CHECK; 4263 EV_FREQUENT_CHECK;
… …
3522 4268
3523 EV_FREQUENT_CHECK; 4269 EV_FREQUENT_CHECK;
3524} 4270}
3525 4271
3526void 4272void
3527ev_fork_stop (EV_P_ ev_fork *w) 4273ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3528{ 4274{
3529 clear_pending (EV_A_ (W)w); 4275 clear_pending (EV_A_ (W)w);
3530 if (expect_false (!ev_is_active (w))) 4276 if (expect_false (!ev_is_active (w)))
3531 return; 4277 return;
3532 4278
… …
3543 4289
3544 EV_FREQUENT_CHECK; 4290 EV_FREQUENT_CHECK;
3545} 4291}
3546#endif 4292#endif
3547 4293
4294#if EV_CLEANUP_ENABLE
4295void
4296ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4297{
4298 if (expect_false (ev_is_active (w)))
4299 return;
4300
4301 EV_FREQUENT_CHECK;
4302
4303 ev_start (EV_A_ (W)w, ++cleanupcnt);
4304 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4305 cleanups [cleanupcnt - 1] = w;
4306
4307 /* cleanup watchers should never keep a refcount on the loop */
4308 ev_unref (EV_A);
4309 EV_FREQUENT_CHECK;
4310}
4311
4312void
4313ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4314{
4315 clear_pending (EV_A_ (W)w);
4316 if (expect_false (!ev_is_active (w)))
4317 return;
4318
4319 EV_FREQUENT_CHECK;
4320 ev_ref (EV_A);
4321
4322 {
4323 int active = ev_active (w);
4324
4325 cleanups [active - 1] = cleanups [--cleanupcnt];
4326 ev_active (cleanups [active - 1]) = active;
4327 }
4328
4329 ev_stop (EV_A_ (W)w);
4330
4331 EV_FREQUENT_CHECK;
4332}
4333#endif
4334
3548#if EV_ASYNC_ENABLE 4335#if EV_ASYNC_ENABLE
3549void 4336void
3550ev_async_start (EV_P_ ev_async *w) 4337ev_async_start (EV_P_ ev_async *w) EV_THROW
3551{ 4338{
3552 if (expect_false (ev_is_active (w))) 4339 if (expect_false (ev_is_active (w)))
3553 return; 4340 return;
4341
4342 w->sent = 0;
3554 4343
3555 evpipe_init (EV_A); 4344 evpipe_init (EV_A);
3556 4345
3557 EV_FREQUENT_CHECK; 4346 EV_FREQUENT_CHECK;
3558 4347
… …
3562 4351
3563 EV_FREQUENT_CHECK; 4352 EV_FREQUENT_CHECK;
3564} 4353}
3565 4354
3566void 4355void
3567ev_async_stop (EV_P_ ev_async *w) 4356ev_async_stop (EV_P_ ev_async *w) EV_THROW
3568{ 4357{
3569 clear_pending (EV_A_ (W)w); 4358 clear_pending (EV_A_ (W)w);
3570 if (expect_false (!ev_is_active (w))) 4359 if (expect_false (!ev_is_active (w)))
3571 return; 4360 return;
3572 4361
… …
3583 4372
3584 EV_FREQUENT_CHECK; 4373 EV_FREQUENT_CHECK;
3585} 4374}
3586 4375
3587void 4376void
3588ev_async_send (EV_P_ ev_async *w) 4377ev_async_send (EV_P_ ev_async *w) EV_THROW
3589{ 4378{
3590 w->sent = 1; 4379 w->sent = 1;
3591 evpipe_write (EV_A_ &async_pending); 4380 evpipe_write (EV_A_ &async_pending);
3592} 4381}
3593#endif 4382#endif
… …
3630 4419
3631 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4420 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3632} 4421}
3633 4422
3634void 4423void
3635ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4424ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3636{ 4425{
3637 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4426 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3638 4427
3639 if (expect_false (!once)) 4428 if (expect_false (!once))
3640 { 4429 {
3641 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4430 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3642 return; 4431 return;
3643 } 4432 }
3644 4433
3645 once->cb = cb; 4434 once->cb = cb;
3646 once->arg = arg; 4435 once->arg = arg;
… …
3661} 4450}
3662 4451
3663/*****************************************************************************/ 4452/*****************************************************************************/
3664 4453
3665#if EV_WALK_ENABLE 4454#if EV_WALK_ENABLE
3666void 4455void ecb_cold
3667ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4456ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3668{ 4457{
3669 int i, j; 4458 int i, j;
3670 ev_watcher_list *wl, *wn; 4459 ev_watcher_list *wl, *wn;
3671 4460
3672 if (types & (EV_IO | EV_EMBED)) 4461 if (types & (EV_IO | EV_EMBED))
… …
3715 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4504 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3716#endif 4505#endif
3717 4506
3718#if EV_IDLE_ENABLE 4507#if EV_IDLE_ENABLE
3719 if (types & EV_IDLE) 4508 if (types & EV_IDLE)
3720 for (j = NUMPRI; i--; ) 4509 for (j = NUMPRI; j--; )
3721 for (i = idlecnt [j]; i--; ) 4510 for (i = idlecnt [j]; i--; )
3722 cb (EV_A_ EV_IDLE, idles [j][i]); 4511 cb (EV_A_ EV_IDLE, idles [j][i]);
3723#endif 4512#endif
3724 4513
3725#if EV_FORK_ENABLE 4514#if EV_FORK_ENABLE
… …
3778 4567
3779#if EV_MULTIPLICITY 4568#if EV_MULTIPLICITY
3780 #include "ev_wrap.h" 4569 #include "ev_wrap.h"
3781#endif 4570#endif
3782 4571
3783#ifdef __cplusplus
3784}
3785#endif
3786

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