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1.17 |
/* |
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1.36 |
* libev event processing core, watcher management |
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* |
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1.17 |
* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials provided |
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* with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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1.59 |
#ifndef EV_STANDALONE |
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1.133 |
# ifdef EV_CONFIG_H |
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# include EV_CONFIG_H |
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# else |
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# include "config.h" |
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# endif |
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1.60 |
|
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# if HAVE_CLOCK_GETTIME |
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1.97 |
# ifndef EV_USE_MONOTONIC |
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# define EV_USE_MONOTONIC 1 |
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# endif |
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# ifndef EV_USE_REALTIME |
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# define EV_USE_REALTIME 1 |
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# endif |
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1.126 |
# else |
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# ifndef EV_USE_MONOTONIC |
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# define EV_USE_MONOTONIC 0 |
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# endif |
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# ifndef EV_USE_REALTIME |
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# define EV_USE_REALTIME 0 |
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# endif |
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1.60 |
# endif |
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1.127 |
# ifndef EV_USE_SELECT |
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# if HAVE_SELECT && HAVE_SYS_SELECT_H |
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# define EV_USE_SELECT 1 |
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# else |
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# define EV_USE_SELECT 0 |
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# endif |
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1.60 |
# endif |
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# ifndef EV_USE_POLL |
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# if HAVE_POLL && HAVE_POLL_H |
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# define EV_USE_POLL 1 |
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# else |
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# define EV_USE_POLL 0 |
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# endif |
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# endif |
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1.127 |
|
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# ifndef EV_USE_EPOLL |
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# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
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# define EV_USE_EPOLL 1 |
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# else |
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# define EV_USE_EPOLL 0 |
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# endif |
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1.60 |
# endif |
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1.127 |
|
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# ifndef EV_USE_KQUEUE |
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# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
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# define EV_USE_KQUEUE 1 |
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# else |
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# define EV_USE_KQUEUE 0 |
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# endif |
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1.60 |
# endif |
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1.127 |
|
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# ifndef EV_USE_PORT |
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# if HAVE_PORT_H && HAVE_PORT_CREATE |
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# define EV_USE_PORT 1 |
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# else |
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# define EV_USE_PORT 0 |
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# endif |
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# endif |
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# ifndef EV_USE_INOTIFY |
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# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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# define EV_USE_INOTIFY 1 |
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# else |
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# define EV_USE_INOTIFY 0 |
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# endif |
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# endif |
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1.29 |
#endif |
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1.17 |
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#include <math.h> |
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#include <stdlib.h> |
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#include <fcntl.h> |
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1.16 |
#include <stddef.h> |
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#include <stdio.h> |
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1.4 |
#include <assert.h> |
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1.1 |
#include <errno.h> |
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1.22 |
#include <sys/types.h> |
119 |
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1.71 |
#include <time.h> |
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#include <signal.h> |
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|
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1.152 |
#ifdef EV_H |
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# include EV_H |
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#else |
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# include "ev.h" |
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#endif |
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#ifndef _WIN32 |
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# include <sys/time.h> |
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# include <sys/wait.h> |
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# include <unistd.h> |
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1.103 |
#else |
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# define WIN32_LEAN_AND_MEAN |
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# include <windows.h> |
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# ifndef EV_SELECT_IS_WINSOCKET |
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# define EV_SELECT_IS_WINSOCKET 1 |
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# endif |
139 |
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1.45 |
#endif |
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1.103 |
|
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1.40 |
/**/ |
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143 |
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1.29 |
#ifndef EV_USE_MONOTONIC |
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1.121 |
# define EV_USE_MONOTONIC 0 |
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1.37 |
#endif |
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1.118 |
#ifndef EV_USE_REALTIME |
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1.121 |
# define EV_USE_REALTIME 0 |
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1.118 |
#endif |
150 |
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1.29 |
#ifndef EV_USE_SELECT |
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# define EV_USE_SELECT 1 |
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1.10 |
#endif |
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1.59 |
#ifndef EV_USE_POLL |
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1.104 |
# ifdef _WIN32 |
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# define EV_USE_POLL 0 |
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# else |
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# define EV_USE_POLL 1 |
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# endif |
161 |
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1.41 |
#endif |
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1.29 |
#ifndef EV_USE_EPOLL |
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# define EV_USE_EPOLL 0 |
165 |
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1.10 |
#endif |
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1.44 |
#ifndef EV_USE_KQUEUE |
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# define EV_USE_KQUEUE 0 |
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#endif |
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1.118 |
#ifndef EV_USE_PORT |
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# define EV_USE_PORT 0 |
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1.40 |
#endif |
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1.152 |
#ifndef EV_USE_INOTIFY |
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# define EV_USE_INOTIFY 0 |
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#endif |
178 |
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179 |
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1.149 |
#ifndef EV_PID_HASHSIZE |
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# if EV_MINIMAL |
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# define EV_PID_HASHSIZE 1 |
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# else |
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# define EV_PID_HASHSIZE 16 |
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# endif |
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#endif |
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#ifndef EV_INOTIFY_HASHSIZE |
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# if EV_MINIMAL |
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# define EV_INOTIFY_HASHSIZE 1 |
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# else |
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# define EV_INOTIFY_HASHSIZE 16 |
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# endif |
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#endif |
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1.40 |
/**/ |
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#ifndef CLOCK_MONOTONIC |
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# undef EV_USE_MONOTONIC |
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# define EV_USE_MONOTONIC 0 |
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#endif |
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202 |
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1.31 |
#ifndef CLOCK_REALTIME |
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# undef EV_USE_REALTIME |
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1.31 |
# define EV_USE_REALTIME 0 |
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#endif |
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|
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1.103 |
#if EV_SELECT_IS_WINSOCKET |
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# include <winsock.h> |
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#endif |
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#if !EV_STAT_ENABLE |
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# define EV_USE_INOTIFY 0 |
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#endif |
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#if EV_USE_INOTIFY |
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# include <sys/inotify.h> |
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#endif |
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1.40 |
/**/ |
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1.1 |
|
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1.4 |
#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
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#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
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/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
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1.1 |
|
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1.40 |
#if __GNUC__ >= 3 |
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# define expect(expr,value) __builtin_expect ((expr),(value)) |
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# define noinline __attribute__ ((noinline)) |
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1.40 |
#else |
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# define expect(expr,value) (expr) |
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1.140 |
# define noinline |
231 |
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# if __STDC_VERSION__ < 199901L |
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# define inline |
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# endif |
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1.40 |
#endif |
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#define expect_false(expr) expect ((expr) != 0, 0) |
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#define expect_true(expr) expect ((expr) != 0, 1) |
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1.169 |
#define inline_size static inline |
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#if EV_MINIMAL |
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# define inline_speed static noinline |
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#else |
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# define inline_speed static inline |
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#endif |
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1.40 |
|
246 |
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1.42 |
#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
247 |
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1.164 |
#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
248 |
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1.42 |
|
249 |
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1.164 |
#define EMPTY /* required for microsofts broken pseudo-c compiler */ |
250 |
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1.114 |
#define EMPTY2(a,b) /* used to suppress some warnings */ |
251 |
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1.103 |
|
252 |
root |
1.136 |
typedef ev_watcher *W; |
253 |
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typedef ev_watcher_list *WL; |
254 |
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typedef ev_watcher_time *WT; |
255 |
root |
1.10 |
|
256 |
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1.54 |
static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
257 |
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258 |
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1.103 |
#ifdef _WIN32 |
259 |
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1.98 |
# include "ev_win32.c" |
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#endif |
261 |
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1.67 |
|
262 |
root |
1.53 |
/*****************************************************************************/ |
263 |
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1.1 |
|
264 |
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1.70 |
static void (*syserr_cb)(const char *msg); |
265 |
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1.69 |
|
266 |
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1.141 |
void |
267 |
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ev_set_syserr_cb (void (*cb)(const char *msg)) |
268 |
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1.69 |
{ |
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syserr_cb = cb; |
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} |
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272 |
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1.141 |
static void noinline |
273 |
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1.70 |
syserr (const char *msg) |
274 |
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1.69 |
{ |
275 |
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1.70 |
if (!msg) |
276 |
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msg = "(libev) system error"; |
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|
278 |
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1.69 |
if (syserr_cb) |
279 |
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1.70 |
syserr_cb (msg); |
280 |
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1.69 |
else |
281 |
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{ |
282 |
root |
1.70 |
perror (msg); |
283 |
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1.69 |
abort (); |
284 |
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} |
285 |
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} |
286 |
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|
287 |
root |
1.155 |
static void *(*alloc)(void *ptr, long size); |
288 |
root |
1.69 |
|
289 |
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1.141 |
void |
290 |
root |
1.155 |
ev_set_allocator (void *(*cb)(void *ptr, long size)) |
291 |
root |
1.69 |
{ |
292 |
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alloc = cb; |
293 |
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} |
294 |
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295 |
root |
1.150 |
inline_speed void * |
296 |
root |
1.155 |
ev_realloc (void *ptr, long size) |
297 |
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1.69 |
{ |
298 |
root |
1.155 |
ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
299 |
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1.69 |
|
300 |
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if (!ptr && size) |
301 |
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{ |
302 |
root |
1.155 |
fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
303 |
root |
1.69 |
abort (); |
304 |
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} |
305 |
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306 |
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return ptr; |
307 |
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} |
308 |
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309 |
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#define ev_malloc(size) ev_realloc (0, (size)) |
310 |
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#define ev_free(ptr) ev_realloc ((ptr), 0) |
311 |
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312 |
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/*****************************************************************************/ |
313 |
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314 |
root |
1.53 |
typedef struct |
315 |
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{ |
316 |
root |
1.68 |
WL head; |
317 |
root |
1.53 |
unsigned char events; |
318 |
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unsigned char reify; |
319 |
root |
1.103 |
#if EV_SELECT_IS_WINSOCKET |
320 |
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SOCKET handle; |
321 |
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#endif |
322 |
root |
1.53 |
} ANFD; |
323 |
root |
1.1 |
|
324 |
root |
1.53 |
typedef struct |
325 |
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{ |
326 |
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W w; |
327 |
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int events; |
328 |
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} ANPENDING; |
329 |
root |
1.51 |
|
330 |
root |
1.155 |
#if EV_USE_INOTIFY |
331 |
root |
1.152 |
typedef struct |
332 |
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{ |
333 |
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WL head; |
334 |
root |
1.155 |
} ANFS; |
335 |
root |
1.152 |
#endif |
336 |
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|
337 |
root |
1.55 |
#if EV_MULTIPLICITY |
338 |
root |
1.54 |
|
339 |
root |
1.80 |
struct ev_loop |
340 |
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{ |
341 |
root |
1.86 |
ev_tstamp ev_rt_now; |
342 |
root |
1.99 |
#define ev_rt_now ((loop)->ev_rt_now) |
343 |
root |
1.80 |
#define VAR(name,decl) decl; |
344 |
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#include "ev_vars.h" |
345 |
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#undef VAR |
346 |
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}; |
347 |
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#include "ev_wrap.h" |
348 |
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|
349 |
root |
1.116 |
static struct ev_loop default_loop_struct; |
350 |
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struct ev_loop *ev_default_loop_ptr; |
351 |
root |
1.54 |
|
352 |
root |
1.53 |
#else |
353 |
root |
1.54 |
|
354 |
root |
1.86 |
ev_tstamp ev_rt_now; |
355 |
root |
1.80 |
#define VAR(name,decl) static decl; |
356 |
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#include "ev_vars.h" |
357 |
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#undef VAR |
358 |
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|
359 |
root |
1.116 |
static int ev_default_loop_ptr; |
360 |
root |
1.54 |
|
361 |
root |
1.51 |
#endif |
362 |
root |
1.1 |
|
363 |
root |
1.8 |
/*****************************************************************************/ |
364 |
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|
365 |
root |
1.141 |
ev_tstamp |
366 |
root |
1.1 |
ev_time (void) |
367 |
|
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{ |
368 |
root |
1.29 |
#if EV_USE_REALTIME |
369 |
root |
1.1 |
struct timespec ts; |
370 |
|
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clock_gettime (CLOCK_REALTIME, &ts); |
371 |
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return ts.tv_sec + ts.tv_nsec * 1e-9; |
372 |
|
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#else |
373 |
|
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struct timeval tv; |
374 |
|
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gettimeofday (&tv, 0); |
375 |
|
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return tv.tv_sec + tv.tv_usec * 1e-6; |
376 |
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#endif |
377 |
|
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} |
378 |
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|
379 |
root |
1.140 |
ev_tstamp inline_size |
380 |
root |
1.1 |
get_clock (void) |
381 |
|
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{ |
382 |
root |
1.29 |
#if EV_USE_MONOTONIC |
383 |
root |
1.40 |
if (expect_true (have_monotonic)) |
384 |
root |
1.1 |
{ |
385 |
|
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struct timespec ts; |
386 |
|
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clock_gettime (CLOCK_MONOTONIC, &ts); |
387 |
|
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return ts.tv_sec + ts.tv_nsec * 1e-9; |
388 |
|
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} |
389 |
|
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#endif |
390 |
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|
391 |
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return ev_time (); |
392 |
|
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} |
393 |
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|
394 |
root |
1.85 |
#if EV_MULTIPLICITY |
395 |
root |
1.51 |
ev_tstamp |
396 |
|
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ev_now (EV_P) |
397 |
|
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{ |
398 |
root |
1.85 |
return ev_rt_now; |
399 |
root |
1.51 |
} |
400 |
root |
1.85 |
#endif |
401 |
root |
1.51 |
|
402 |
root |
1.163 |
int inline_size |
403 |
|
|
array_nextsize (int elem, int cur, int cnt) |
404 |
|
|
{ |
405 |
|
|
int ncur = cur + 1; |
406 |
|
|
|
407 |
|
|
do |
408 |
|
|
ncur <<= 1; |
409 |
|
|
while (cnt > ncur); |
410 |
|
|
|
411 |
|
|
/* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
412 |
|
|
if (elem * ncur > 4096) |
413 |
|
|
{ |
414 |
|
|
ncur *= elem; |
415 |
|
|
ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
416 |
|
|
ncur = ncur - sizeof (void *) * 4; |
417 |
|
|
ncur /= elem; |
418 |
|
|
} |
419 |
|
|
|
420 |
|
|
return ncur; |
421 |
|
|
} |
422 |
|
|
|
423 |
|
|
inline_speed void * |
424 |
|
|
array_realloc (int elem, void *base, int *cur, int cnt) |
425 |
|
|
{ |
426 |
|
|
*cur = array_nextsize (elem, *cur, cnt); |
427 |
|
|
return ev_realloc (base, elem * *cur); |
428 |
|
|
} |
429 |
root |
1.29 |
|
430 |
root |
1.74 |
#define array_needsize(type,base,cur,cnt,init) \ |
431 |
root |
1.163 |
if (expect_false ((cnt) > (cur))) \ |
432 |
root |
1.69 |
{ \ |
433 |
root |
1.163 |
int ocur_ = (cur); \ |
434 |
|
|
(base) = (type *)array_realloc \ |
435 |
|
|
(sizeof (type), (base), &(cur), (cnt)); \ |
436 |
|
|
init ((base) + (ocur_), (cur) - ocur_); \ |
437 |
root |
1.1 |
} |
438 |
|
|
|
439 |
root |
1.163 |
#if 0 |
440 |
root |
1.74 |
#define array_slim(type,stem) \ |
441 |
root |
1.67 |
if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
442 |
|
|
{ \ |
443 |
|
|
stem ## max = array_roundsize (stem ## cnt >> 1); \ |
444 |
root |
1.74 |
base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
445 |
root |
1.67 |
fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
446 |
|
|
} |
447 |
root |
1.163 |
#endif |
448 |
root |
1.67 |
|
449 |
root |
1.65 |
#define array_free(stem, idx) \ |
450 |
root |
1.69 |
ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
451 |
root |
1.65 |
|
452 |
root |
1.8 |
/*****************************************************************************/ |
453 |
|
|
|
454 |
root |
1.140 |
void noinline |
455 |
root |
1.78 |
ev_feed_event (EV_P_ void *w, int revents) |
456 |
root |
1.1 |
{ |
457 |
root |
1.78 |
W w_ = (W)w; |
458 |
|
|
|
459 |
root |
1.123 |
if (expect_false (w_->pending)) |
460 |
root |
1.32 |
{ |
461 |
root |
1.78 |
pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
462 |
root |
1.32 |
return; |
463 |
|
|
} |
464 |
|
|
|
465 |
root |
1.78 |
w_->pending = ++pendingcnt [ABSPRI (w_)]; |
466 |
root |
1.114 |
array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
467 |
root |
1.78 |
pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
468 |
|
|
pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
469 |
root |
1.1 |
} |
470 |
|
|
|
471 |
root |
1.141 |
void inline_size |
472 |
root |
1.51 |
queue_events (EV_P_ W *events, int eventcnt, int type) |
473 |
root |
1.27 |
{ |
474 |
|
|
int i; |
475 |
|
|
|
476 |
|
|
for (i = 0; i < eventcnt; ++i) |
477 |
root |
1.78 |
ev_feed_event (EV_A_ events [i], type); |
478 |
root |
1.27 |
} |
479 |
|
|
|
480 |
root |
1.141 |
/*****************************************************************************/ |
481 |
|
|
|
482 |
|
|
void inline_size |
483 |
|
|
anfds_init (ANFD *base, int count) |
484 |
|
|
{ |
485 |
|
|
while (count--) |
486 |
|
|
{ |
487 |
|
|
base->head = 0; |
488 |
|
|
base->events = EV_NONE; |
489 |
|
|
base->reify = 0; |
490 |
|
|
|
491 |
|
|
++base; |
492 |
|
|
} |
493 |
|
|
} |
494 |
|
|
|
495 |
root |
1.140 |
void inline_speed |
496 |
root |
1.79 |
fd_event (EV_P_ int fd, int revents) |
497 |
root |
1.1 |
{ |
498 |
|
|
ANFD *anfd = anfds + fd; |
499 |
root |
1.136 |
ev_io *w; |
500 |
root |
1.1 |
|
501 |
root |
1.136 |
for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
502 |
root |
1.1 |
{ |
503 |
root |
1.79 |
int ev = w->events & revents; |
504 |
root |
1.1 |
|
505 |
|
|
if (ev) |
506 |
root |
1.78 |
ev_feed_event (EV_A_ (W)w, ev); |
507 |
root |
1.1 |
} |
508 |
|
|
} |
509 |
|
|
|
510 |
root |
1.79 |
void |
511 |
|
|
ev_feed_fd_event (EV_P_ int fd, int revents) |
512 |
|
|
{ |
513 |
root |
1.168 |
if (fd >= 0 && fd < anfdmax) |
514 |
|
|
fd_event (EV_A_ fd, revents); |
515 |
root |
1.79 |
} |
516 |
|
|
|
517 |
root |
1.140 |
void inline_size |
518 |
root |
1.51 |
fd_reify (EV_P) |
519 |
root |
1.9 |
{ |
520 |
|
|
int i; |
521 |
|
|
|
522 |
root |
1.27 |
for (i = 0; i < fdchangecnt; ++i) |
523 |
|
|
{ |
524 |
|
|
int fd = fdchanges [i]; |
525 |
|
|
ANFD *anfd = anfds + fd; |
526 |
root |
1.136 |
ev_io *w; |
527 |
root |
1.27 |
|
528 |
|
|
int events = 0; |
529 |
|
|
|
530 |
root |
1.136 |
for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
531 |
root |
1.27 |
events |= w->events; |
532 |
|
|
|
533 |
root |
1.103 |
#if EV_SELECT_IS_WINSOCKET |
534 |
|
|
if (events) |
535 |
|
|
{ |
536 |
|
|
unsigned long argp; |
537 |
|
|
anfd->handle = _get_osfhandle (fd); |
538 |
|
|
assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
539 |
|
|
} |
540 |
|
|
#endif |
541 |
|
|
|
542 |
root |
1.33 |
anfd->reify = 0; |
543 |
root |
1.27 |
|
544 |
root |
1.130 |
backend_modify (EV_A_ fd, anfd->events, events); |
545 |
root |
1.64 |
anfd->events = events; |
546 |
root |
1.27 |
} |
547 |
|
|
|
548 |
|
|
fdchangecnt = 0; |
549 |
|
|
} |
550 |
|
|
|
551 |
root |
1.140 |
void inline_size |
552 |
root |
1.51 |
fd_change (EV_P_ int fd) |
553 |
root |
1.27 |
{ |
554 |
root |
1.123 |
if (expect_false (anfds [fd].reify)) |
555 |
root |
1.27 |
return; |
556 |
|
|
|
557 |
root |
1.33 |
anfds [fd].reify = 1; |
558 |
root |
1.27 |
|
559 |
|
|
++fdchangecnt; |
560 |
root |
1.114 |
array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
561 |
root |
1.27 |
fdchanges [fdchangecnt - 1] = fd; |
562 |
root |
1.9 |
} |
563 |
|
|
|
564 |
root |
1.140 |
void inline_speed |
565 |
root |
1.51 |
fd_kill (EV_P_ int fd) |
566 |
root |
1.41 |
{ |
567 |
root |
1.136 |
ev_io *w; |
568 |
root |
1.41 |
|
569 |
root |
1.136 |
while ((w = (ev_io *)anfds [fd].head)) |
570 |
root |
1.41 |
{ |
571 |
root |
1.51 |
ev_io_stop (EV_A_ w); |
572 |
root |
1.78 |
ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
573 |
root |
1.41 |
} |
574 |
|
|
} |
575 |
|
|
|
576 |
root |
1.140 |
int inline_size |
577 |
root |
1.71 |
fd_valid (int fd) |
578 |
|
|
{ |
579 |
root |
1.103 |
#ifdef _WIN32 |
580 |
|
|
return _get_osfhandle (fd) != -1; |
581 |
root |
1.71 |
#else |
582 |
|
|
return fcntl (fd, F_GETFD) != -1; |
583 |
|
|
#endif |
584 |
|
|
} |
585 |
|
|
|
586 |
root |
1.19 |
/* called on EBADF to verify fds */ |
587 |
root |
1.140 |
static void noinline |
588 |
root |
1.51 |
fd_ebadf (EV_P) |
589 |
root |
1.19 |
{ |
590 |
|
|
int fd; |
591 |
|
|
|
592 |
|
|
for (fd = 0; fd < anfdmax; ++fd) |
593 |
root |
1.27 |
if (anfds [fd].events) |
594 |
root |
1.71 |
if (!fd_valid (fd) == -1 && errno == EBADF) |
595 |
root |
1.51 |
fd_kill (EV_A_ fd); |
596 |
root |
1.41 |
} |
597 |
|
|
|
598 |
|
|
/* called on ENOMEM in select/poll to kill some fds and retry */ |
599 |
root |
1.140 |
static void noinline |
600 |
root |
1.51 |
fd_enomem (EV_P) |
601 |
root |
1.41 |
{ |
602 |
root |
1.62 |
int fd; |
603 |
root |
1.41 |
|
604 |
root |
1.62 |
for (fd = anfdmax; fd--; ) |
605 |
root |
1.41 |
if (anfds [fd].events) |
606 |
|
|
{ |
607 |
root |
1.51 |
fd_kill (EV_A_ fd); |
608 |
root |
1.41 |
return; |
609 |
|
|
} |
610 |
root |
1.19 |
} |
611 |
|
|
|
612 |
root |
1.130 |
/* usually called after fork if backend needs to re-arm all fds from scratch */ |
613 |
root |
1.140 |
static void noinline |
614 |
root |
1.56 |
fd_rearm_all (EV_P) |
615 |
|
|
{ |
616 |
|
|
int fd; |
617 |
|
|
|
618 |
|
|
for (fd = 0; fd < anfdmax; ++fd) |
619 |
|
|
if (anfds [fd].events) |
620 |
|
|
{ |
621 |
|
|
anfds [fd].events = 0; |
622 |
root |
1.60 |
fd_change (EV_A_ fd); |
623 |
root |
1.56 |
} |
624 |
|
|
} |
625 |
|
|
|
626 |
root |
1.8 |
/*****************************************************************************/ |
627 |
|
|
|
628 |
root |
1.140 |
void inline_speed |
629 |
root |
1.54 |
upheap (WT *heap, int k) |
630 |
root |
1.1 |
{ |
631 |
root |
1.54 |
WT w = heap [k]; |
632 |
root |
1.1 |
|
633 |
root |
1.54 |
while (k && heap [k >> 1]->at > w->at) |
634 |
root |
1.1 |
{ |
635 |
root |
1.54 |
heap [k] = heap [k >> 1]; |
636 |
root |
1.62 |
((W)heap [k])->active = k + 1; |
637 |
root |
1.1 |
k >>= 1; |
638 |
|
|
} |
639 |
|
|
|
640 |
root |
1.54 |
heap [k] = w; |
641 |
root |
1.62 |
((W)heap [k])->active = k + 1; |
642 |
root |
1.1 |
|
643 |
|
|
} |
644 |
|
|
|
645 |
root |
1.140 |
void inline_speed |
646 |
root |
1.54 |
downheap (WT *heap, int N, int k) |
647 |
root |
1.1 |
{ |
648 |
root |
1.54 |
WT w = heap [k]; |
649 |
root |
1.1 |
|
650 |
root |
1.4 |
while (k < (N >> 1)) |
651 |
root |
1.1 |
{ |
652 |
|
|
int j = k << 1; |
653 |
|
|
|
654 |
root |
1.54 |
if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
655 |
root |
1.1 |
++j; |
656 |
|
|
|
657 |
root |
1.54 |
if (w->at <= heap [j]->at) |
658 |
root |
1.1 |
break; |
659 |
|
|
|
660 |
root |
1.54 |
heap [k] = heap [j]; |
661 |
root |
1.62 |
((W)heap [k])->active = k + 1; |
662 |
root |
1.1 |
k = j; |
663 |
|
|
} |
664 |
|
|
|
665 |
root |
1.54 |
heap [k] = w; |
666 |
root |
1.62 |
((W)heap [k])->active = k + 1; |
667 |
root |
1.1 |
} |
668 |
|
|
|
669 |
root |
1.140 |
void inline_size |
670 |
root |
1.99 |
adjustheap (WT *heap, int N, int k) |
671 |
root |
1.84 |
{ |
672 |
root |
1.99 |
upheap (heap, k); |
673 |
|
|
downheap (heap, N, k); |
674 |
root |
1.84 |
} |
675 |
|
|
|
676 |
root |
1.8 |
/*****************************************************************************/ |
677 |
|
|
|
678 |
root |
1.7 |
typedef struct |
679 |
|
|
{ |
680 |
root |
1.68 |
WL head; |
681 |
root |
1.34 |
sig_atomic_t volatile gotsig; |
682 |
root |
1.7 |
} ANSIG; |
683 |
|
|
|
684 |
|
|
static ANSIG *signals; |
685 |
root |
1.4 |
static int signalmax; |
686 |
root |
1.1 |
|
687 |
root |
1.7 |
static int sigpipe [2]; |
688 |
root |
1.34 |
static sig_atomic_t volatile gotsig; |
689 |
root |
1.136 |
static ev_io sigev; |
690 |
root |
1.7 |
|
691 |
root |
1.140 |
void inline_size |
692 |
root |
1.7 |
signals_init (ANSIG *base, int count) |
693 |
root |
1.1 |
{ |
694 |
|
|
while (count--) |
695 |
root |
1.7 |
{ |
696 |
|
|
base->head = 0; |
697 |
|
|
base->gotsig = 0; |
698 |
root |
1.33 |
|
699 |
root |
1.7 |
++base; |
700 |
|
|
} |
701 |
|
|
} |
702 |
|
|
|
703 |
|
|
static void |
704 |
|
|
sighandler (int signum) |
705 |
|
|
{ |
706 |
root |
1.103 |
#if _WIN32 |
707 |
root |
1.67 |
signal (signum, sighandler); |
708 |
|
|
#endif |
709 |
|
|
|
710 |
root |
1.7 |
signals [signum - 1].gotsig = 1; |
711 |
|
|
|
712 |
|
|
if (!gotsig) |
713 |
|
|
{ |
714 |
root |
1.48 |
int old_errno = errno; |
715 |
root |
1.7 |
gotsig = 1; |
716 |
root |
1.34 |
write (sigpipe [1], &signum, 1); |
717 |
root |
1.48 |
errno = old_errno; |
718 |
root |
1.7 |
} |
719 |
|
|
} |
720 |
|
|
|
721 |
root |
1.140 |
void noinline |
722 |
root |
1.79 |
ev_feed_signal_event (EV_P_ int signum) |
723 |
|
|
{ |
724 |
root |
1.80 |
WL w; |
725 |
|
|
|
726 |
root |
1.79 |
#if EV_MULTIPLICITY |
727 |
root |
1.116 |
assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
728 |
root |
1.79 |
#endif |
729 |
|
|
|
730 |
|
|
--signum; |
731 |
|
|
|
732 |
|
|
if (signum < 0 || signum >= signalmax) |
733 |
|
|
return; |
734 |
|
|
|
735 |
|
|
signals [signum].gotsig = 0; |
736 |
|
|
|
737 |
|
|
for (w = signals [signum].head; w; w = w->next) |
738 |
|
|
ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
739 |
|
|
} |
740 |
|
|
|
741 |
root |
1.7 |
static void |
742 |
root |
1.136 |
sigcb (EV_P_ ev_io *iow, int revents) |
743 |
root |
1.7 |
{ |
744 |
root |
1.38 |
int signum; |
745 |
root |
1.7 |
|
746 |
root |
1.34 |
read (sigpipe [0], &revents, 1); |
747 |
root |
1.7 |
gotsig = 0; |
748 |
|
|
|
749 |
root |
1.38 |
for (signum = signalmax; signum--; ) |
750 |
|
|
if (signals [signum].gotsig) |
751 |
root |
1.80 |
ev_feed_signal_event (EV_A_ signum + 1); |
752 |
root |
1.7 |
} |
753 |
|
|
|
754 |
root |
1.140 |
void inline_size |
755 |
root |
1.103 |
fd_intern (int fd) |
756 |
|
|
{ |
757 |
|
|
#ifdef _WIN32 |
758 |
|
|
int arg = 1; |
759 |
|
|
ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
760 |
|
|
#else |
761 |
|
|
fcntl (fd, F_SETFD, FD_CLOEXEC); |
762 |
|
|
fcntl (fd, F_SETFL, O_NONBLOCK); |
763 |
|
|
#endif |
764 |
|
|
} |
765 |
|
|
|
766 |
root |
1.140 |
static void noinline |
767 |
root |
1.51 |
siginit (EV_P) |
768 |
root |
1.7 |
{ |
769 |
root |
1.103 |
fd_intern (sigpipe [0]); |
770 |
|
|
fd_intern (sigpipe [1]); |
771 |
root |
1.7 |
|
772 |
root |
1.28 |
ev_io_set (&sigev, sigpipe [0], EV_READ); |
773 |
root |
1.54 |
ev_io_start (EV_A_ &sigev); |
774 |
root |
1.52 |
ev_unref (EV_A); /* child watcher should not keep loop alive */ |
775 |
root |
1.1 |
} |
776 |
|
|
|
777 |
root |
1.8 |
/*****************************************************************************/ |
778 |
|
|
|
779 |
root |
1.149 |
static ev_child *childs [EV_PID_HASHSIZE]; |
780 |
root |
1.71 |
|
781 |
root |
1.103 |
#ifndef _WIN32 |
782 |
root |
1.45 |
|
783 |
root |
1.136 |
static ev_signal childev; |
784 |
root |
1.59 |
|
785 |
root |
1.140 |
void inline_speed |
786 |
root |
1.136 |
child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
787 |
root |
1.47 |
{ |
788 |
root |
1.136 |
ev_child *w; |
789 |
root |
1.47 |
|
790 |
root |
1.149 |
for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
791 |
root |
1.47 |
if (w->pid == pid || !w->pid) |
792 |
|
|
{ |
793 |
root |
1.164 |
ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
794 |
|
|
w->rpid = pid; |
795 |
|
|
w->rstatus = status; |
796 |
root |
1.78 |
ev_feed_event (EV_A_ (W)w, EV_CHILD); |
797 |
root |
1.47 |
} |
798 |
|
|
} |
799 |
|
|
|
800 |
root |
1.142 |
#ifndef WCONTINUED |
801 |
|
|
# define WCONTINUED 0 |
802 |
|
|
#endif |
803 |
|
|
|
804 |
root |
1.47 |
static void |
805 |
root |
1.136 |
childcb (EV_P_ ev_signal *sw, int revents) |
806 |
root |
1.22 |
{ |
807 |
|
|
int pid, status; |
808 |
|
|
|
809 |
root |
1.142 |
/* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
810 |
|
|
if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
811 |
|
|
if (!WCONTINUED |
812 |
|
|
|| errno != EINVAL |
813 |
|
|
|| 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
814 |
|
|
return; |
815 |
|
|
|
816 |
|
|
/* make sure we are called again until all childs have been reaped */ |
817 |
|
|
/* we need to do it this way so that the callback gets called before we continue */ |
818 |
|
|
ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
819 |
root |
1.47 |
|
820 |
root |
1.142 |
child_reap (EV_A_ sw, pid, pid, status); |
821 |
root |
1.149 |
if (EV_PID_HASHSIZE > 1) |
822 |
|
|
child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
823 |
root |
1.22 |
} |
824 |
|
|
|
825 |
root |
1.45 |
#endif |
826 |
|
|
|
827 |
root |
1.22 |
/*****************************************************************************/ |
828 |
|
|
|
829 |
root |
1.118 |
#if EV_USE_PORT |
830 |
|
|
# include "ev_port.c" |
831 |
|
|
#endif |
832 |
root |
1.44 |
#if EV_USE_KQUEUE |
833 |
|
|
# include "ev_kqueue.c" |
834 |
|
|
#endif |
835 |
root |
1.29 |
#if EV_USE_EPOLL |
836 |
root |
1.1 |
# include "ev_epoll.c" |
837 |
|
|
#endif |
838 |
root |
1.59 |
#if EV_USE_POLL |
839 |
root |
1.41 |
# include "ev_poll.c" |
840 |
|
|
#endif |
841 |
root |
1.29 |
#if EV_USE_SELECT |
842 |
root |
1.1 |
# include "ev_select.c" |
843 |
|
|
#endif |
844 |
|
|
|
845 |
root |
1.24 |
int |
846 |
|
|
ev_version_major (void) |
847 |
|
|
{ |
848 |
|
|
return EV_VERSION_MAJOR; |
849 |
|
|
} |
850 |
|
|
|
851 |
|
|
int |
852 |
|
|
ev_version_minor (void) |
853 |
|
|
{ |
854 |
|
|
return EV_VERSION_MINOR; |
855 |
|
|
} |
856 |
|
|
|
857 |
root |
1.49 |
/* return true if we are running with elevated privileges and should ignore env variables */ |
858 |
root |
1.140 |
int inline_size |
859 |
root |
1.51 |
enable_secure (void) |
860 |
root |
1.41 |
{ |
861 |
root |
1.103 |
#ifdef _WIN32 |
862 |
root |
1.49 |
return 0; |
863 |
|
|
#else |
864 |
root |
1.41 |
return getuid () != geteuid () |
865 |
|
|
|| getgid () != getegid (); |
866 |
root |
1.49 |
#endif |
867 |
root |
1.41 |
} |
868 |
|
|
|
869 |
root |
1.111 |
unsigned int |
870 |
root |
1.129 |
ev_supported_backends (void) |
871 |
|
|
{ |
872 |
root |
1.130 |
unsigned int flags = 0; |
873 |
root |
1.129 |
|
874 |
|
|
if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
875 |
|
|
if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
876 |
|
|
if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
877 |
|
|
if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
878 |
|
|
if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
879 |
|
|
|
880 |
|
|
return flags; |
881 |
|
|
} |
882 |
|
|
|
883 |
|
|
unsigned int |
884 |
root |
1.130 |
ev_recommended_backends (void) |
885 |
root |
1.1 |
{ |
886 |
root |
1.131 |
unsigned int flags = ev_supported_backends (); |
887 |
root |
1.129 |
|
888 |
|
|
#ifndef __NetBSD__ |
889 |
|
|
/* kqueue is borked on everything but netbsd apparently */ |
890 |
|
|
/* it usually doesn't work correctly on anything but sockets and pipes */ |
891 |
|
|
flags &= ~EVBACKEND_KQUEUE; |
892 |
|
|
#endif |
893 |
|
|
#ifdef __APPLE__ |
894 |
|
|
// flags &= ~EVBACKEND_KQUEUE; for documentation |
895 |
|
|
flags &= ~EVBACKEND_POLL; |
896 |
|
|
#endif |
897 |
|
|
|
898 |
|
|
return flags; |
899 |
root |
1.51 |
} |
900 |
|
|
|
901 |
root |
1.130 |
unsigned int |
902 |
root |
1.134 |
ev_embeddable_backends (void) |
903 |
|
|
{ |
904 |
|
|
return EVBACKEND_EPOLL |
905 |
|
|
| EVBACKEND_KQUEUE |
906 |
|
|
| EVBACKEND_PORT; |
907 |
|
|
} |
908 |
|
|
|
909 |
|
|
unsigned int |
910 |
root |
1.130 |
ev_backend (EV_P) |
911 |
|
|
{ |
912 |
|
|
return backend; |
913 |
|
|
} |
914 |
|
|
|
915 |
root |
1.162 |
unsigned int |
916 |
|
|
ev_loop_count (EV_P) |
917 |
|
|
{ |
918 |
|
|
return loop_count; |
919 |
|
|
} |
920 |
|
|
|
921 |
root |
1.151 |
static void noinline |
922 |
root |
1.108 |
loop_init (EV_P_ unsigned int flags) |
923 |
root |
1.51 |
{ |
924 |
root |
1.130 |
if (!backend) |
925 |
root |
1.23 |
{ |
926 |
root |
1.29 |
#if EV_USE_MONOTONIC |
927 |
root |
1.23 |
{ |
928 |
|
|
struct timespec ts; |
929 |
|
|
if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
930 |
|
|
have_monotonic = 1; |
931 |
|
|
} |
932 |
root |
1.1 |
#endif |
933 |
|
|
|
934 |
root |
1.85 |
ev_rt_now = ev_time (); |
935 |
root |
1.51 |
mn_now = get_clock (); |
936 |
|
|
now_floor = mn_now; |
937 |
root |
1.85 |
rtmn_diff = ev_rt_now - mn_now; |
938 |
root |
1.1 |
|
939 |
root |
1.158 |
/* pid check not overridable via env */ |
940 |
|
|
#ifndef _WIN32 |
941 |
|
|
if (flags & EVFLAG_FORKCHECK) |
942 |
|
|
curpid = getpid (); |
943 |
|
|
#endif |
944 |
|
|
|
945 |
root |
1.128 |
if (!(flags & EVFLAG_NOENV) |
946 |
|
|
&& !enable_secure () |
947 |
|
|
&& getenv ("LIBEV_FLAGS")) |
948 |
root |
1.108 |
flags = atoi (getenv ("LIBEV_FLAGS")); |
949 |
|
|
|
950 |
root |
1.129 |
if (!(flags & 0x0000ffffUL)) |
951 |
|
|
flags |= ev_recommended_backends (); |
952 |
root |
1.41 |
|
953 |
root |
1.130 |
backend = 0; |
954 |
root |
1.152 |
backend_fd = -1; |
955 |
|
|
#if EV_USE_INOTIFY |
956 |
|
|
fs_fd = -2; |
957 |
|
|
#endif |
958 |
|
|
|
959 |
root |
1.118 |
#if EV_USE_PORT |
960 |
root |
1.130 |
if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
961 |
root |
1.118 |
#endif |
962 |
root |
1.44 |
#if EV_USE_KQUEUE |
963 |
root |
1.130 |
if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
964 |
root |
1.44 |
#endif |
965 |
root |
1.29 |
#if EV_USE_EPOLL |
966 |
root |
1.130 |
if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
967 |
root |
1.41 |
#endif |
968 |
root |
1.59 |
#if EV_USE_POLL |
969 |
root |
1.130 |
if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
970 |
root |
1.1 |
#endif |
971 |
root |
1.29 |
#if EV_USE_SELECT |
972 |
root |
1.130 |
if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
973 |
root |
1.1 |
#endif |
974 |
root |
1.70 |
|
975 |
root |
1.83 |
ev_init (&sigev, sigcb); |
976 |
root |
1.70 |
ev_set_priority (&sigev, EV_MAXPRI); |
977 |
root |
1.56 |
} |
978 |
|
|
} |
979 |
|
|
|
980 |
root |
1.151 |
static void noinline |
981 |
root |
1.56 |
loop_destroy (EV_P) |
982 |
|
|
{ |
983 |
root |
1.65 |
int i; |
984 |
|
|
|
985 |
root |
1.152 |
#if EV_USE_INOTIFY |
986 |
|
|
if (fs_fd >= 0) |
987 |
|
|
close (fs_fd); |
988 |
|
|
#endif |
989 |
|
|
|
990 |
|
|
if (backend_fd >= 0) |
991 |
|
|
close (backend_fd); |
992 |
|
|
|
993 |
root |
1.118 |
#if EV_USE_PORT |
994 |
root |
1.130 |
if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
995 |
root |
1.118 |
#endif |
996 |
root |
1.56 |
#if EV_USE_KQUEUE |
997 |
root |
1.130 |
if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
998 |
root |
1.56 |
#endif |
999 |
|
|
#if EV_USE_EPOLL |
1000 |
root |
1.130 |
if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
1001 |
root |
1.56 |
#endif |
1002 |
root |
1.59 |
#if EV_USE_POLL |
1003 |
root |
1.130 |
if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
1004 |
root |
1.56 |
#endif |
1005 |
|
|
#if EV_USE_SELECT |
1006 |
root |
1.130 |
if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1007 |
root |
1.56 |
#endif |
1008 |
root |
1.1 |
|
1009 |
root |
1.65 |
for (i = NUMPRI; i--; ) |
1010 |
root |
1.164 |
{ |
1011 |
|
|
array_free (pending, [i]); |
1012 |
|
|
#if EV_IDLE_ENABLE |
1013 |
|
|
array_free (idle, [i]); |
1014 |
|
|
#endif |
1015 |
|
|
} |
1016 |
root |
1.65 |
|
1017 |
root |
1.71 |
/* have to use the microsoft-never-gets-it-right macro */ |
1018 |
root |
1.164 |
array_free (fdchange, EMPTY); |
1019 |
|
|
array_free (timer, EMPTY); |
1020 |
root |
1.140 |
#if EV_PERIODIC_ENABLE |
1021 |
root |
1.164 |
array_free (periodic, EMPTY); |
1022 |
root |
1.93 |
#endif |
1023 |
root |
1.164 |
array_free (prepare, EMPTY); |
1024 |
|
|
array_free (check, EMPTY); |
1025 |
root |
1.65 |
|
1026 |
root |
1.130 |
backend = 0; |
1027 |
root |
1.56 |
} |
1028 |
root |
1.22 |
|
1029 |
root |
1.154 |
void inline_size infy_fork (EV_P); |
1030 |
|
|
|
1031 |
root |
1.151 |
void inline_size |
1032 |
root |
1.56 |
loop_fork (EV_P) |
1033 |
|
|
{ |
1034 |
root |
1.118 |
#if EV_USE_PORT |
1035 |
root |
1.130 |
if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1036 |
root |
1.56 |
#endif |
1037 |
|
|
#if EV_USE_KQUEUE |
1038 |
root |
1.130 |
if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
1039 |
root |
1.45 |
#endif |
1040 |
root |
1.118 |
#if EV_USE_EPOLL |
1041 |
root |
1.130 |
if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1042 |
root |
1.118 |
#endif |
1043 |
root |
1.154 |
#if EV_USE_INOTIFY |
1044 |
|
|
infy_fork (EV_A); |
1045 |
|
|
#endif |
1046 |
root |
1.70 |
|
1047 |
|
|
if (ev_is_active (&sigev)) |
1048 |
|
|
{ |
1049 |
|
|
/* default loop */ |
1050 |
|
|
|
1051 |
|
|
ev_ref (EV_A); |
1052 |
|
|
ev_io_stop (EV_A_ &sigev); |
1053 |
|
|
close (sigpipe [0]); |
1054 |
|
|
close (sigpipe [1]); |
1055 |
|
|
|
1056 |
root |
1.73 |
while (pipe (sigpipe)) |
1057 |
root |
1.70 |
syserr ("(libev) error creating pipe"); |
1058 |
|
|
|
1059 |
|
|
siginit (EV_A); |
1060 |
|
|
} |
1061 |
|
|
|
1062 |
|
|
postfork = 0; |
1063 |
root |
1.1 |
} |
1064 |
|
|
|
1065 |
root |
1.55 |
#if EV_MULTIPLICITY |
1066 |
root |
1.54 |
struct ev_loop * |
1067 |
root |
1.108 |
ev_loop_new (unsigned int flags) |
1068 |
root |
1.54 |
{ |
1069 |
root |
1.69 |
struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1070 |
|
|
|
1071 |
|
|
memset (loop, 0, sizeof (struct ev_loop)); |
1072 |
root |
1.54 |
|
1073 |
root |
1.108 |
loop_init (EV_A_ flags); |
1074 |
root |
1.56 |
|
1075 |
root |
1.130 |
if (ev_backend (EV_A)) |
1076 |
root |
1.55 |
return loop; |
1077 |
root |
1.54 |
|
1078 |
root |
1.55 |
return 0; |
1079 |
root |
1.54 |
} |
1080 |
|
|
|
1081 |
|
|
void |
1082 |
root |
1.56 |
ev_loop_destroy (EV_P) |
1083 |
root |
1.54 |
{ |
1084 |
root |
1.56 |
loop_destroy (EV_A); |
1085 |
root |
1.69 |
ev_free (loop); |
1086 |
root |
1.54 |
} |
1087 |
|
|
|
1088 |
root |
1.56 |
void |
1089 |
|
|
ev_loop_fork (EV_P) |
1090 |
|
|
{ |
1091 |
root |
1.70 |
postfork = 1; |
1092 |
root |
1.56 |
} |
1093 |
|
|
|
1094 |
|
|
#endif |
1095 |
|
|
|
1096 |
|
|
#if EV_MULTIPLICITY |
1097 |
|
|
struct ev_loop * |
1098 |
root |
1.125 |
ev_default_loop_init (unsigned int flags) |
1099 |
root |
1.54 |
#else |
1100 |
|
|
int |
1101 |
root |
1.116 |
ev_default_loop (unsigned int flags) |
1102 |
root |
1.56 |
#endif |
1103 |
root |
1.54 |
{ |
1104 |
root |
1.56 |
if (sigpipe [0] == sigpipe [1]) |
1105 |
root |
1.73 |
if (pipe (sigpipe)) |
1106 |
root |
1.56 |
return 0; |
1107 |
root |
1.54 |
|
1108 |
root |
1.116 |
if (!ev_default_loop_ptr) |
1109 |
root |
1.56 |
{ |
1110 |
|
|
#if EV_MULTIPLICITY |
1111 |
root |
1.116 |
struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1112 |
root |
1.56 |
#else |
1113 |
ayin |
1.117 |
ev_default_loop_ptr = 1; |
1114 |
root |
1.54 |
#endif |
1115 |
|
|
|
1116 |
root |
1.110 |
loop_init (EV_A_ flags); |
1117 |
root |
1.56 |
|
1118 |
root |
1.130 |
if (ev_backend (EV_A)) |
1119 |
root |
1.56 |
{ |
1120 |
|
|
siginit (EV_A); |
1121 |
|
|
|
1122 |
root |
1.103 |
#ifndef _WIN32 |
1123 |
root |
1.56 |
ev_signal_init (&childev, childcb, SIGCHLD); |
1124 |
|
|
ev_set_priority (&childev, EV_MAXPRI); |
1125 |
|
|
ev_signal_start (EV_A_ &childev); |
1126 |
|
|
ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1127 |
|
|
#endif |
1128 |
|
|
} |
1129 |
|
|
else |
1130 |
root |
1.116 |
ev_default_loop_ptr = 0; |
1131 |
root |
1.56 |
} |
1132 |
root |
1.8 |
|
1133 |
root |
1.116 |
return ev_default_loop_ptr; |
1134 |
root |
1.1 |
} |
1135 |
|
|
|
1136 |
root |
1.24 |
void |
1137 |
root |
1.56 |
ev_default_destroy (void) |
1138 |
root |
1.1 |
{ |
1139 |
root |
1.57 |
#if EV_MULTIPLICITY |
1140 |
root |
1.116 |
struct ev_loop *loop = ev_default_loop_ptr; |
1141 |
root |
1.57 |
#endif |
1142 |
root |
1.56 |
|
1143 |
root |
1.103 |
#ifndef _WIN32 |
1144 |
root |
1.56 |
ev_ref (EV_A); /* child watcher */ |
1145 |
|
|
ev_signal_stop (EV_A_ &childev); |
1146 |
root |
1.71 |
#endif |
1147 |
root |
1.56 |
|
1148 |
|
|
ev_ref (EV_A); /* signal watcher */ |
1149 |
|
|
ev_io_stop (EV_A_ &sigev); |
1150 |
|
|
|
1151 |
|
|
close (sigpipe [0]); sigpipe [0] = 0; |
1152 |
|
|
close (sigpipe [1]); sigpipe [1] = 0; |
1153 |
|
|
|
1154 |
|
|
loop_destroy (EV_A); |
1155 |
root |
1.1 |
} |
1156 |
|
|
|
1157 |
root |
1.24 |
void |
1158 |
root |
1.60 |
ev_default_fork (void) |
1159 |
root |
1.1 |
{ |
1160 |
root |
1.60 |
#if EV_MULTIPLICITY |
1161 |
root |
1.116 |
struct ev_loop *loop = ev_default_loop_ptr; |
1162 |
root |
1.60 |
#endif |
1163 |
|
|
|
1164 |
root |
1.130 |
if (backend) |
1165 |
root |
1.70 |
postfork = 1; |
1166 |
root |
1.1 |
} |
1167 |
|
|
|
1168 |
root |
1.8 |
/*****************************************************************************/ |
1169 |
|
|
|
1170 |
root |
1.168 |
void |
1171 |
|
|
ev_invoke (EV_P_ void *w, int revents) |
1172 |
|
|
{ |
1173 |
|
|
EV_CB_INVOKE ((W)w, revents); |
1174 |
|
|
} |
1175 |
|
|
|
1176 |
root |
1.140 |
void inline_speed |
1177 |
root |
1.51 |
call_pending (EV_P) |
1178 |
root |
1.1 |
{ |
1179 |
root |
1.42 |
int pri; |
1180 |
|
|
|
1181 |
|
|
for (pri = NUMPRI; pri--; ) |
1182 |
|
|
while (pendingcnt [pri]) |
1183 |
|
|
{ |
1184 |
|
|
ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1185 |
root |
1.1 |
|
1186 |
root |
1.122 |
if (expect_true (p->w)) |
1187 |
root |
1.42 |
{ |
1188 |
root |
1.151 |
/*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1189 |
root |
1.139 |
|
1190 |
root |
1.42 |
p->w->pending = 0; |
1191 |
root |
1.82 |
EV_CB_INVOKE (p->w, p->events); |
1192 |
root |
1.42 |
} |
1193 |
|
|
} |
1194 |
root |
1.1 |
} |
1195 |
|
|
|
1196 |
root |
1.140 |
void inline_size |
1197 |
root |
1.51 |
timers_reify (EV_P) |
1198 |
root |
1.1 |
{ |
1199 |
root |
1.63 |
while (timercnt && ((WT)timers [0])->at <= mn_now) |
1200 |
root |
1.1 |
{ |
1201 |
root |
1.136 |
ev_timer *w = timers [0]; |
1202 |
root |
1.1 |
|
1203 |
root |
1.151 |
/*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1204 |
root |
1.61 |
|
1205 |
root |
1.4 |
/* first reschedule or stop timer */ |
1206 |
root |
1.1 |
if (w->repeat) |
1207 |
|
|
{ |
1208 |
root |
1.33 |
assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1209 |
root |
1.90 |
|
1210 |
|
|
((WT)w)->at += w->repeat; |
1211 |
|
|
if (((WT)w)->at < mn_now) |
1212 |
|
|
((WT)w)->at = mn_now; |
1213 |
|
|
|
1214 |
root |
1.12 |
downheap ((WT *)timers, timercnt, 0); |
1215 |
|
|
} |
1216 |
|
|
else |
1217 |
root |
1.51 |
ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1218 |
root |
1.30 |
|
1219 |
root |
1.78 |
ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1220 |
root |
1.12 |
} |
1221 |
|
|
} |
1222 |
root |
1.4 |
|
1223 |
root |
1.140 |
#if EV_PERIODIC_ENABLE |
1224 |
|
|
void inline_size |
1225 |
root |
1.51 |
periodics_reify (EV_P) |
1226 |
root |
1.12 |
{ |
1227 |
root |
1.85 |
while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1228 |
root |
1.12 |
{ |
1229 |
root |
1.136 |
ev_periodic *w = periodics [0]; |
1230 |
root |
1.1 |
|
1231 |
root |
1.151 |
/*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1232 |
root |
1.61 |
|
1233 |
root |
1.12 |
/* first reschedule or stop timer */ |
1234 |
root |
1.77 |
if (w->reschedule_cb) |
1235 |
|
|
{ |
1236 |
root |
1.108 |
((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1237 |
root |
1.85 |
assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1238 |
root |
1.77 |
downheap ((WT *)periodics, periodiccnt, 0); |
1239 |
|
|
} |
1240 |
|
|
else if (w->interval) |
1241 |
root |
1.12 |
{ |
1242 |
root |
1.85 |
((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1243 |
|
|
assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1244 |
root |
1.12 |
downheap ((WT *)periodics, periodiccnt, 0); |
1245 |
root |
1.1 |
} |
1246 |
|
|
else |
1247 |
root |
1.51 |
ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1248 |
root |
1.12 |
|
1249 |
root |
1.78 |
ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1250 |
root |
1.12 |
} |
1251 |
|
|
} |
1252 |
|
|
|
1253 |
root |
1.140 |
static void noinline |
1254 |
root |
1.54 |
periodics_reschedule (EV_P) |
1255 |
root |
1.12 |
{ |
1256 |
|
|
int i; |
1257 |
|
|
|
1258 |
root |
1.13 |
/* adjust periodics after time jump */ |
1259 |
root |
1.12 |
for (i = 0; i < periodiccnt; ++i) |
1260 |
|
|
{ |
1261 |
root |
1.136 |
ev_periodic *w = periodics [i]; |
1262 |
root |
1.12 |
|
1263 |
root |
1.77 |
if (w->reschedule_cb) |
1264 |
root |
1.85 |
((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1265 |
root |
1.77 |
else if (w->interval) |
1266 |
root |
1.85 |
((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1267 |
root |
1.77 |
} |
1268 |
root |
1.12 |
|
1269 |
root |
1.77 |
/* now rebuild the heap */ |
1270 |
|
|
for (i = periodiccnt >> 1; i--; ) |
1271 |
|
|
downheap ((WT *)periodics, periodiccnt, i); |
1272 |
root |
1.1 |
} |
1273 |
root |
1.93 |
#endif |
1274 |
root |
1.1 |
|
1275 |
root |
1.164 |
#if EV_IDLE_ENABLE |
1276 |
|
|
void inline_size |
1277 |
|
|
idle_reify (EV_P) |
1278 |
|
|
{ |
1279 |
root |
1.165 |
if (expect_false (idleall)) |
1280 |
root |
1.164 |
{ |
1281 |
|
|
int pri; |
1282 |
|
|
|
1283 |
|
|
for (pri = NUMPRI; pri--; ) |
1284 |
|
|
{ |
1285 |
|
|
if (pendingcnt [pri]) |
1286 |
|
|
break; |
1287 |
|
|
|
1288 |
|
|
if (idlecnt [pri]) |
1289 |
|
|
{ |
1290 |
|
|
queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
1291 |
|
|
break; |
1292 |
|
|
} |
1293 |
|
|
} |
1294 |
|
|
} |
1295 |
|
|
} |
1296 |
|
|
#endif |
1297 |
|
|
|
1298 |
root |
1.140 |
int inline_size |
1299 |
root |
1.51 |
time_update_monotonic (EV_P) |
1300 |
root |
1.40 |
{ |
1301 |
root |
1.51 |
mn_now = get_clock (); |
1302 |
root |
1.40 |
|
1303 |
root |
1.51 |
if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1304 |
root |
1.40 |
{ |
1305 |
root |
1.85 |
ev_rt_now = rtmn_diff + mn_now; |
1306 |
root |
1.40 |
return 0; |
1307 |
|
|
} |
1308 |
|
|
else |
1309 |
|
|
{ |
1310 |
root |
1.51 |
now_floor = mn_now; |
1311 |
root |
1.85 |
ev_rt_now = ev_time (); |
1312 |
root |
1.40 |
return 1; |
1313 |
|
|
} |
1314 |
|
|
} |
1315 |
|
|
|
1316 |
root |
1.140 |
void inline_size |
1317 |
root |
1.51 |
time_update (EV_P) |
1318 |
root |
1.4 |
{ |
1319 |
|
|
int i; |
1320 |
root |
1.12 |
|
1321 |
root |
1.40 |
#if EV_USE_MONOTONIC |
1322 |
|
|
if (expect_true (have_monotonic)) |
1323 |
|
|
{ |
1324 |
root |
1.51 |
if (time_update_monotonic (EV_A)) |
1325 |
root |
1.40 |
{ |
1326 |
root |
1.54 |
ev_tstamp odiff = rtmn_diff; |
1327 |
root |
1.4 |
|
1328 |
root |
1.139 |
/* loop a few times, before making important decisions. |
1329 |
|
|
* on the choice of "4": one iteration isn't enough, |
1330 |
|
|
* in case we get preempted during the calls to |
1331 |
root |
1.157 |
* ev_time and get_clock. a second call is almost guaranteed |
1332 |
root |
1.139 |
* to succeed in that case, though. and looping a few more times |
1333 |
|
|
* doesn't hurt either as we only do this on time-jumps or |
1334 |
root |
1.157 |
* in the unlikely event of having been preempted here. |
1335 |
root |
1.139 |
*/ |
1336 |
|
|
for (i = 4; --i; ) |
1337 |
root |
1.40 |
{ |
1338 |
root |
1.85 |
rtmn_diff = ev_rt_now - mn_now; |
1339 |
root |
1.4 |
|
1340 |
root |
1.54 |
if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1341 |
root |
1.40 |
return; /* all is well */ |
1342 |
root |
1.4 |
|
1343 |
root |
1.85 |
ev_rt_now = ev_time (); |
1344 |
root |
1.51 |
mn_now = get_clock (); |
1345 |
|
|
now_floor = mn_now; |
1346 |
root |
1.40 |
} |
1347 |
root |
1.4 |
|
1348 |
root |
1.140 |
# if EV_PERIODIC_ENABLE |
1349 |
root |
1.54 |
periodics_reschedule (EV_A); |
1350 |
root |
1.93 |
# endif |
1351 |
root |
1.40 |
/* no timer adjustment, as the monotonic clock doesn't jump */ |
1352 |
root |
1.54 |
/* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1353 |
root |
1.4 |
} |
1354 |
|
|
} |
1355 |
|
|
else |
1356 |
root |
1.40 |
#endif |
1357 |
root |
1.4 |
{ |
1358 |
root |
1.85 |
ev_rt_now = ev_time (); |
1359 |
root |
1.40 |
|
1360 |
root |
1.85 |
if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1361 |
root |
1.13 |
{ |
1362 |
root |
1.140 |
#if EV_PERIODIC_ENABLE |
1363 |
root |
1.54 |
periodics_reschedule (EV_A); |
1364 |
root |
1.93 |
#endif |
1365 |
root |
1.13 |
|
1366 |
root |
1.157 |
/* adjust timers. this is easy, as the offset is the same for all of them */ |
1367 |
root |
1.13 |
for (i = 0; i < timercnt; ++i) |
1368 |
root |
1.85 |
((WT)timers [i])->at += ev_rt_now - mn_now; |
1369 |
root |
1.13 |
} |
1370 |
root |
1.4 |
|
1371 |
root |
1.85 |
mn_now = ev_rt_now; |
1372 |
root |
1.4 |
} |
1373 |
|
|
} |
1374 |
|
|
|
1375 |
root |
1.51 |
void |
1376 |
|
|
ev_ref (EV_P) |
1377 |
|
|
{ |
1378 |
|
|
++activecnt; |
1379 |
|
|
} |
1380 |
root |
1.1 |
|
1381 |
root |
1.51 |
void |
1382 |
|
|
ev_unref (EV_P) |
1383 |
|
|
{ |
1384 |
|
|
--activecnt; |
1385 |
|
|
} |
1386 |
|
|
|
1387 |
|
|
static int loop_done; |
1388 |
|
|
|
1389 |
|
|
void |
1390 |
|
|
ev_loop (EV_P_ int flags) |
1391 |
root |
1.1 |
{ |
1392 |
root |
1.135 |
loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1393 |
|
|
? EVUNLOOP_ONE |
1394 |
|
|
: EVUNLOOP_CANCEL; |
1395 |
root |
1.1 |
|
1396 |
root |
1.158 |
call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1397 |
|
|
|
1398 |
root |
1.161 |
do |
1399 |
root |
1.9 |
{ |
1400 |
root |
1.158 |
#ifndef _WIN32 |
1401 |
|
|
if (expect_false (curpid)) /* penalise the forking check even more */ |
1402 |
|
|
if (expect_false (getpid () != curpid)) |
1403 |
|
|
{ |
1404 |
|
|
curpid = getpid (); |
1405 |
|
|
postfork = 1; |
1406 |
|
|
} |
1407 |
|
|
#endif |
1408 |
|
|
|
1409 |
root |
1.157 |
#if EV_FORK_ENABLE |
1410 |
|
|
/* we might have forked, so queue fork handlers */ |
1411 |
|
|
if (expect_false (postfork)) |
1412 |
|
|
if (forkcnt) |
1413 |
|
|
{ |
1414 |
|
|
queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1415 |
|
|
call_pending (EV_A); |
1416 |
|
|
} |
1417 |
|
|
#endif |
1418 |
root |
1.147 |
|
1419 |
root |
1.170 |
/* queue prepare watchers (and execute them) */ |
1420 |
root |
1.40 |
if (expect_false (preparecnt)) |
1421 |
root |
1.20 |
{ |
1422 |
root |
1.51 |
queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1423 |
|
|
call_pending (EV_A); |
1424 |
root |
1.20 |
} |
1425 |
root |
1.9 |
|
1426 |
root |
1.159 |
if (expect_false (!activecnt)) |
1427 |
|
|
break; |
1428 |
|
|
|
1429 |
root |
1.70 |
/* we might have forked, so reify kernel state if necessary */ |
1430 |
|
|
if (expect_false (postfork)) |
1431 |
|
|
loop_fork (EV_A); |
1432 |
|
|
|
1433 |
root |
1.1 |
/* update fd-related kernel structures */ |
1434 |
root |
1.51 |
fd_reify (EV_A); |
1435 |
root |
1.1 |
|
1436 |
|
|
/* calculate blocking time */ |
1437 |
root |
1.135 |
{ |
1438 |
root |
1.157 |
ev_tstamp block; |
1439 |
root |
1.12 |
|
1440 |
root |
1.164 |
if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1441 |
root |
1.135 |
block = 0.; /* do not block at all */ |
1442 |
|
|
else |
1443 |
|
|
{ |
1444 |
|
|
/* update time to cancel out callback processing overhead */ |
1445 |
root |
1.40 |
#if EV_USE_MONOTONIC |
1446 |
root |
1.135 |
if (expect_true (have_monotonic)) |
1447 |
|
|
time_update_monotonic (EV_A); |
1448 |
|
|
else |
1449 |
root |
1.40 |
#endif |
1450 |
root |
1.135 |
{ |
1451 |
|
|
ev_rt_now = ev_time (); |
1452 |
|
|
mn_now = ev_rt_now; |
1453 |
|
|
} |
1454 |
|
|
|
1455 |
|
|
block = MAX_BLOCKTIME; |
1456 |
|
|
|
1457 |
|
|
if (timercnt) |
1458 |
|
|
{ |
1459 |
|
|
ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1460 |
|
|
if (block > to) block = to; |
1461 |
|
|
} |
1462 |
root |
1.4 |
|
1463 |
root |
1.140 |
#if EV_PERIODIC_ENABLE |
1464 |
root |
1.135 |
if (periodiccnt) |
1465 |
|
|
{ |
1466 |
|
|
ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1467 |
|
|
if (block > to) block = to; |
1468 |
|
|
} |
1469 |
root |
1.93 |
#endif |
1470 |
root |
1.4 |
|
1471 |
root |
1.135 |
if (expect_false (block < 0.)) block = 0.; |
1472 |
|
|
} |
1473 |
root |
1.1 |
|
1474 |
root |
1.162 |
++loop_count; |
1475 |
root |
1.135 |
backend_poll (EV_A_ block); |
1476 |
|
|
} |
1477 |
root |
1.1 |
|
1478 |
root |
1.85 |
/* update ev_rt_now, do magic */ |
1479 |
root |
1.51 |
time_update (EV_A); |
1480 |
root |
1.4 |
|
1481 |
root |
1.9 |
/* queue pending timers and reschedule them */ |
1482 |
root |
1.51 |
timers_reify (EV_A); /* relative timers called last */ |
1483 |
root |
1.140 |
#if EV_PERIODIC_ENABLE |
1484 |
root |
1.51 |
periodics_reify (EV_A); /* absolute timers called first */ |
1485 |
root |
1.93 |
#endif |
1486 |
root |
1.1 |
|
1487 |
root |
1.164 |
#if EV_IDLE_ENABLE |
1488 |
root |
1.137 |
/* queue idle watchers unless other events are pending */ |
1489 |
root |
1.164 |
idle_reify (EV_A); |
1490 |
|
|
#endif |
1491 |
root |
1.9 |
|
1492 |
root |
1.20 |
/* queue check watchers, to be executed first */ |
1493 |
root |
1.123 |
if (expect_false (checkcnt)) |
1494 |
root |
1.51 |
queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1495 |
root |
1.9 |
|
1496 |
root |
1.51 |
call_pending (EV_A); |
1497 |
root |
1.115 |
|
1498 |
root |
1.1 |
} |
1499 |
root |
1.161 |
while (expect_true (activecnt && !loop_done)); |
1500 |
root |
1.13 |
|
1501 |
root |
1.135 |
if (loop_done == EVUNLOOP_ONE) |
1502 |
|
|
loop_done = EVUNLOOP_CANCEL; |
1503 |
root |
1.51 |
} |
1504 |
|
|
|
1505 |
|
|
void |
1506 |
|
|
ev_unloop (EV_P_ int how) |
1507 |
|
|
{ |
1508 |
|
|
loop_done = how; |
1509 |
root |
1.1 |
} |
1510 |
|
|
|
1511 |
root |
1.8 |
/*****************************************************************************/ |
1512 |
|
|
|
1513 |
root |
1.140 |
void inline_size |
1514 |
root |
1.10 |
wlist_add (WL *head, WL elem) |
1515 |
root |
1.1 |
{ |
1516 |
|
|
elem->next = *head; |
1517 |
|
|
*head = elem; |
1518 |
|
|
} |
1519 |
|
|
|
1520 |
root |
1.140 |
void inline_size |
1521 |
root |
1.10 |
wlist_del (WL *head, WL elem) |
1522 |
root |
1.1 |
{ |
1523 |
|
|
while (*head) |
1524 |
|
|
{ |
1525 |
|
|
if (*head == elem) |
1526 |
|
|
{ |
1527 |
|
|
*head = elem->next; |
1528 |
|
|
return; |
1529 |
|
|
} |
1530 |
|
|
|
1531 |
|
|
head = &(*head)->next; |
1532 |
|
|
} |
1533 |
|
|
} |
1534 |
|
|
|
1535 |
root |
1.140 |
void inline_speed |
1536 |
root |
1.166 |
clear_pending (EV_P_ W w) |
1537 |
root |
1.16 |
{ |
1538 |
|
|
if (w->pending) |
1539 |
|
|
{ |
1540 |
root |
1.42 |
pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1541 |
root |
1.16 |
w->pending = 0; |
1542 |
|
|
} |
1543 |
|
|
} |
1544 |
|
|
|
1545 |
root |
1.167 |
int |
1546 |
|
|
ev_clear_pending (EV_P_ void *w) |
1547 |
root |
1.166 |
{ |
1548 |
|
|
W w_ = (W)w; |
1549 |
|
|
int pending = w_->pending; |
1550 |
|
|
|
1551 |
root |
1.167 |
if (!pending) |
1552 |
|
|
return 0; |
1553 |
root |
1.166 |
|
1554 |
root |
1.167 |
w_->pending = 0; |
1555 |
|
|
ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
1556 |
|
|
p->w = 0; |
1557 |
root |
1.166 |
|
1558 |
root |
1.167 |
return p->events; |
1559 |
root |
1.166 |
} |
1560 |
|
|
|
1561 |
root |
1.164 |
void inline_size |
1562 |
|
|
pri_adjust (EV_P_ W w) |
1563 |
|
|
{ |
1564 |
|
|
int pri = w->priority; |
1565 |
|
|
pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1566 |
|
|
pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1567 |
|
|
w->priority = pri; |
1568 |
|
|
} |
1569 |
|
|
|
1570 |
root |
1.140 |
void inline_speed |
1571 |
root |
1.51 |
ev_start (EV_P_ W w, int active) |
1572 |
root |
1.1 |
{ |
1573 |
root |
1.164 |
pri_adjust (EV_A_ w); |
1574 |
root |
1.1 |
w->active = active; |
1575 |
root |
1.51 |
ev_ref (EV_A); |
1576 |
root |
1.1 |
} |
1577 |
|
|
|
1578 |
root |
1.140 |
void inline_size |
1579 |
root |
1.51 |
ev_stop (EV_P_ W w) |
1580 |
root |
1.1 |
{ |
1581 |
root |
1.51 |
ev_unref (EV_A); |
1582 |
root |
1.1 |
w->active = 0; |
1583 |
|
|
} |
1584 |
|
|
|
1585 |
root |
1.8 |
/*****************************************************************************/ |
1586 |
|
|
|
1587 |
root |
1.1 |
void |
1588 |
root |
1.136 |
ev_io_start (EV_P_ ev_io *w) |
1589 |
root |
1.1 |
{ |
1590 |
root |
1.37 |
int fd = w->fd; |
1591 |
|
|
|
1592 |
root |
1.123 |
if (expect_false (ev_is_active (w))) |
1593 |
root |
1.1 |
return; |
1594 |
|
|
|
1595 |
root |
1.33 |
assert (("ev_io_start called with negative fd", fd >= 0)); |
1596 |
|
|
|
1597 |
root |
1.51 |
ev_start (EV_A_ (W)w, 1); |
1598 |
root |
1.74 |
array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1599 |
root |
1.10 |
wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1600 |
root |
1.1 |
|
1601 |
root |
1.51 |
fd_change (EV_A_ fd); |
1602 |
root |
1.1 |
} |
1603 |
|
|
|
1604 |
|
|
void |
1605 |
root |
1.136 |
ev_io_stop (EV_P_ ev_io *w) |
1606 |
root |
1.1 |
{ |
1607 |
root |
1.166 |
clear_pending (EV_A_ (W)w); |
1608 |
root |
1.123 |
if (expect_false (!ev_is_active (w))) |
1609 |
root |
1.1 |
return; |
1610 |
|
|
|
1611 |
root |
1.89 |
assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1612 |
|
|
|
1613 |
root |
1.10 |
wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1614 |
root |
1.51 |
ev_stop (EV_A_ (W)w); |
1615 |
root |
1.1 |
|
1616 |
root |
1.51 |
fd_change (EV_A_ w->fd); |
1617 |
root |
1.1 |
} |
1618 |
|
|
|
1619 |
|
|
void |
1620 |
root |
1.136 |
ev_timer_start (EV_P_ ev_timer *w) |
1621 |
root |
1.1 |
{ |
1622 |
root |
1.123 |
if (expect_false (ev_is_active (w))) |
1623 |
root |
1.1 |
return; |
1624 |
|
|
|
1625 |
root |
1.63 |
((WT)w)->at += mn_now; |
1626 |
root |
1.12 |
|
1627 |
root |
1.33 |
assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1628 |
root |
1.13 |
|
1629 |
root |
1.51 |
ev_start (EV_A_ (W)w, ++timercnt); |
1630 |
root |
1.136 |
array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1631 |
root |
1.12 |
timers [timercnt - 1] = w; |
1632 |
|
|
upheap ((WT *)timers, timercnt - 1); |
1633 |
root |
1.62 |
|
1634 |
root |
1.151 |
/*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1635 |
root |
1.12 |
} |
1636 |
|
|
|
1637 |
|
|
void |
1638 |
root |
1.136 |
ev_timer_stop (EV_P_ ev_timer *w) |
1639 |
root |
1.12 |
{ |
1640 |
root |
1.166 |
clear_pending (EV_A_ (W)w); |
1641 |
root |
1.123 |
if (expect_false (!ev_is_active (w))) |
1642 |
root |
1.12 |
return; |
1643 |
|
|
|
1644 |
root |
1.62 |
assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1645 |
|
|
|
1646 |
root |
1.151 |
{ |
1647 |
|
|
int active = ((W)w)->active; |
1648 |
|
|
|
1649 |
|
|
if (expect_true (--active < --timercnt)) |
1650 |
|
|
{ |
1651 |
|
|
timers [active] = timers [timercnt]; |
1652 |
|
|
adjustheap ((WT *)timers, timercnt, active); |
1653 |
|
|
} |
1654 |
|
|
} |
1655 |
root |
1.4 |
|
1656 |
root |
1.91 |
((WT)w)->at -= mn_now; |
1657 |
root |
1.14 |
|
1658 |
root |
1.51 |
ev_stop (EV_A_ (W)w); |
1659 |
root |
1.12 |
} |
1660 |
root |
1.4 |
|
1661 |
root |
1.12 |
void |
1662 |
root |
1.136 |
ev_timer_again (EV_P_ ev_timer *w) |
1663 |
root |
1.14 |
{ |
1664 |
|
|
if (ev_is_active (w)) |
1665 |
|
|
{ |
1666 |
|
|
if (w->repeat) |
1667 |
root |
1.99 |
{ |
1668 |
|
|
((WT)w)->at = mn_now + w->repeat; |
1669 |
|
|
adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1670 |
|
|
} |
1671 |
root |
1.14 |
else |
1672 |
root |
1.51 |
ev_timer_stop (EV_A_ w); |
1673 |
root |
1.14 |
} |
1674 |
|
|
else if (w->repeat) |
1675 |
root |
1.112 |
{ |
1676 |
|
|
w->at = w->repeat; |
1677 |
|
|
ev_timer_start (EV_A_ w); |
1678 |
|
|
} |
1679 |
root |
1.14 |
} |
1680 |
|
|
|
1681 |
root |
1.140 |
#if EV_PERIODIC_ENABLE |
1682 |
root |
1.14 |
void |
1683 |
root |
1.136 |
ev_periodic_start (EV_P_ ev_periodic *w) |
1684 |
root |
1.12 |
{ |
1685 |
root |
1.123 |
if (expect_false (ev_is_active (w))) |
1686 |
root |
1.12 |
return; |
1687 |
root |
1.1 |
|
1688 |
root |
1.77 |
if (w->reschedule_cb) |
1689 |
root |
1.85 |
((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1690 |
root |
1.77 |
else if (w->interval) |
1691 |
|
|
{ |
1692 |
|
|
assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1693 |
|
|
/* this formula differs from the one in periodic_reify because we do not always round up */ |
1694 |
root |
1.85 |
((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1695 |
root |
1.77 |
} |
1696 |
root |
1.12 |
|
1697 |
root |
1.51 |
ev_start (EV_A_ (W)w, ++periodiccnt); |
1698 |
root |
1.136 |
array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1699 |
root |
1.12 |
periodics [periodiccnt - 1] = w; |
1700 |
|
|
upheap ((WT *)periodics, periodiccnt - 1); |
1701 |
root |
1.62 |
|
1702 |
root |
1.151 |
/*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1703 |
root |
1.1 |
} |
1704 |
|
|
|
1705 |
|
|
void |
1706 |
root |
1.136 |
ev_periodic_stop (EV_P_ ev_periodic *w) |
1707 |
root |
1.1 |
{ |
1708 |
root |
1.166 |
clear_pending (EV_A_ (W)w); |
1709 |
root |
1.123 |
if (expect_false (!ev_is_active (w))) |
1710 |
root |
1.1 |
return; |
1711 |
|
|
|
1712 |
root |
1.62 |
assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1713 |
|
|
|
1714 |
root |
1.151 |
{ |
1715 |
|
|
int active = ((W)w)->active; |
1716 |
|
|
|
1717 |
|
|
if (expect_true (--active < --periodiccnt)) |
1718 |
|
|
{ |
1719 |
|
|
periodics [active] = periodics [periodiccnt]; |
1720 |
|
|
adjustheap ((WT *)periodics, periodiccnt, active); |
1721 |
|
|
} |
1722 |
|
|
} |
1723 |
root |
1.2 |
|
1724 |
root |
1.51 |
ev_stop (EV_A_ (W)w); |
1725 |
root |
1.1 |
} |
1726 |
|
|
|
1727 |
root |
1.28 |
void |
1728 |
root |
1.136 |
ev_periodic_again (EV_P_ ev_periodic *w) |
1729 |
root |
1.77 |
{ |
1730 |
root |
1.84 |
/* TODO: use adjustheap and recalculation */ |
1731 |
root |
1.77 |
ev_periodic_stop (EV_A_ w); |
1732 |
|
|
ev_periodic_start (EV_A_ w); |
1733 |
|
|
} |
1734 |
root |
1.93 |
#endif |
1735 |
root |
1.77 |
|
1736 |
root |
1.56 |
#ifndef SA_RESTART |
1737 |
|
|
# define SA_RESTART 0 |
1738 |
|
|
#endif |
1739 |
|
|
|
1740 |
|
|
void |
1741 |
root |
1.136 |
ev_signal_start (EV_P_ ev_signal *w) |
1742 |
root |
1.56 |
{ |
1743 |
|
|
#if EV_MULTIPLICITY |
1744 |
root |
1.116 |
assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1745 |
root |
1.56 |
#endif |
1746 |
root |
1.123 |
if (expect_false (ev_is_active (w))) |
1747 |
root |
1.56 |
return; |
1748 |
|
|
|
1749 |
|
|
assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1750 |
|
|
|
1751 |
|
|
ev_start (EV_A_ (W)w, 1); |
1752 |
root |
1.74 |
array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1753 |
root |
1.56 |
wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1754 |
|
|
|
1755 |
root |
1.63 |
if (!((WL)w)->next) |
1756 |
root |
1.56 |
{ |
1757 |
root |
1.103 |
#if _WIN32 |
1758 |
root |
1.67 |
signal (w->signum, sighandler); |
1759 |
|
|
#else |
1760 |
root |
1.56 |
struct sigaction sa; |
1761 |
|
|
sa.sa_handler = sighandler; |
1762 |
|
|
sigfillset (&sa.sa_mask); |
1763 |
|
|
sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1764 |
|
|
sigaction (w->signum, &sa, 0); |
1765 |
root |
1.67 |
#endif |
1766 |
root |
1.56 |
} |
1767 |
|
|
} |
1768 |
|
|
|
1769 |
|
|
void |
1770 |
root |
1.136 |
ev_signal_stop (EV_P_ ev_signal *w) |
1771 |
root |
1.56 |
{ |
1772 |
root |
1.166 |
clear_pending (EV_A_ (W)w); |
1773 |
root |
1.123 |
if (expect_false (!ev_is_active (w))) |
1774 |
root |
1.56 |
return; |
1775 |
|
|
|
1776 |
|
|
wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1777 |
|
|
ev_stop (EV_A_ (W)w); |
1778 |
|
|
|
1779 |
|
|
if (!signals [w->signum - 1].head) |
1780 |
|
|
signal (w->signum, SIG_DFL); |
1781 |
|
|
} |
1782 |
|
|
|
1783 |
root |
1.28 |
void |
1784 |
root |
1.136 |
ev_child_start (EV_P_ ev_child *w) |
1785 |
root |
1.22 |
{ |
1786 |
root |
1.56 |
#if EV_MULTIPLICITY |
1787 |
root |
1.116 |
assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1788 |
root |
1.56 |
#endif |
1789 |
root |
1.123 |
if (expect_false (ev_is_active (w))) |
1790 |
root |
1.22 |
return; |
1791 |
|
|
|
1792 |
root |
1.51 |
ev_start (EV_A_ (W)w, 1); |
1793 |
root |
1.149 |
wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1794 |
root |
1.22 |
} |
1795 |
|
|
|
1796 |
root |
1.28 |
void |
1797 |
root |
1.136 |
ev_child_stop (EV_P_ ev_child *w) |
1798 |
root |
1.22 |
{ |
1799 |
root |
1.166 |
clear_pending (EV_A_ (W)w); |
1800 |
root |
1.123 |
if (expect_false (!ev_is_active (w))) |
1801 |
root |
1.22 |
return; |
1802 |
|
|
|
1803 |
root |
1.149 |
wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1804 |
root |
1.51 |
ev_stop (EV_A_ (W)w); |
1805 |
root |
1.22 |
} |
1806 |
|
|
|
1807 |
root |
1.140 |
#if EV_STAT_ENABLE |
1808 |
|
|
|
1809 |
|
|
# ifdef _WIN32 |
1810 |
root |
1.146 |
# undef lstat |
1811 |
|
|
# define lstat(a,b) _stati64 (a,b) |
1812 |
root |
1.140 |
# endif |
1813 |
|
|
|
1814 |
root |
1.143 |
#define DEF_STAT_INTERVAL 5.0074891 |
1815 |
|
|
#define MIN_STAT_INTERVAL 0.1074891 |
1816 |
|
|
|
1817 |
root |
1.157 |
static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1818 |
root |
1.152 |
|
1819 |
|
|
#if EV_USE_INOTIFY |
1820 |
root |
1.153 |
# define EV_INOTIFY_BUFSIZE 8192 |
1821 |
root |
1.152 |
|
1822 |
|
|
static void noinline |
1823 |
|
|
infy_add (EV_P_ ev_stat *w) |
1824 |
|
|
{ |
1825 |
|
|
w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
1826 |
|
|
|
1827 |
|
|
if (w->wd < 0) |
1828 |
|
|
{ |
1829 |
|
|
ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1830 |
|
|
|
1831 |
|
|
/* monitor some parent directory for speedup hints */ |
1832 |
root |
1.153 |
if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1833 |
root |
1.152 |
{ |
1834 |
root |
1.153 |
char path [4096]; |
1835 |
root |
1.152 |
strcpy (path, w->path); |
1836 |
|
|
|
1837 |
|
|
do |
1838 |
|
|
{ |
1839 |
|
|
int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1840 |
|
|
| (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1841 |
|
|
|
1842 |
|
|
char *pend = strrchr (path, '/'); |
1843 |
|
|
|
1844 |
|
|
if (!pend) |
1845 |
|
|
break; /* whoops, no '/', complain to your admin */ |
1846 |
|
|
|
1847 |
|
|
*pend = 0; |
1848 |
root |
1.153 |
w->wd = inotify_add_watch (fs_fd, path, mask); |
1849 |
root |
1.152 |
} |
1850 |
|
|
while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1851 |
|
|
} |
1852 |
|
|
} |
1853 |
|
|
else |
1854 |
|
|
ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
1855 |
|
|
|
1856 |
|
|
if (w->wd >= 0) |
1857 |
|
|
wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
1858 |
|
|
} |
1859 |
|
|
|
1860 |
|
|
static void noinline |
1861 |
|
|
infy_del (EV_P_ ev_stat *w) |
1862 |
|
|
{ |
1863 |
|
|
int slot; |
1864 |
|
|
int wd = w->wd; |
1865 |
|
|
|
1866 |
|
|
if (wd < 0) |
1867 |
|
|
return; |
1868 |
|
|
|
1869 |
|
|
w->wd = -2; |
1870 |
|
|
slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
1871 |
|
|
wlist_del (&fs_hash [slot].head, (WL)w); |
1872 |
|
|
|
1873 |
|
|
/* remove this watcher, if others are watching it, they will rearm */ |
1874 |
|
|
inotify_rm_watch (fs_fd, wd); |
1875 |
|
|
} |
1876 |
|
|
|
1877 |
|
|
static void noinline |
1878 |
|
|
infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1879 |
|
|
{ |
1880 |
|
|
if (slot < 0) |
1881 |
|
|
/* overflow, need to check for all hahs slots */ |
1882 |
|
|
for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
1883 |
|
|
infy_wd (EV_A_ slot, wd, ev); |
1884 |
|
|
else |
1885 |
|
|
{ |
1886 |
|
|
WL w_; |
1887 |
|
|
|
1888 |
|
|
for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
1889 |
|
|
{ |
1890 |
|
|
ev_stat *w = (ev_stat *)w_; |
1891 |
|
|
w_ = w_->next; /* lets us remove this watcher and all before it */ |
1892 |
|
|
|
1893 |
|
|
if (w->wd == wd || wd == -1) |
1894 |
|
|
{ |
1895 |
|
|
if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
1896 |
|
|
{ |
1897 |
|
|
w->wd = -1; |
1898 |
|
|
infy_add (EV_A_ w); /* re-add, no matter what */ |
1899 |
|
|
} |
1900 |
|
|
|
1901 |
root |
1.153 |
stat_timer_cb (EV_A_ &w->timer, 0); |
1902 |
root |
1.152 |
} |
1903 |
|
|
} |
1904 |
|
|
} |
1905 |
|
|
} |
1906 |
|
|
|
1907 |
|
|
static void |
1908 |
|
|
infy_cb (EV_P_ ev_io *w, int revents) |
1909 |
|
|
{ |
1910 |
|
|
char buf [EV_INOTIFY_BUFSIZE]; |
1911 |
|
|
struct inotify_event *ev = (struct inotify_event *)buf; |
1912 |
|
|
int ofs; |
1913 |
|
|
int len = read (fs_fd, buf, sizeof (buf)); |
1914 |
|
|
|
1915 |
|
|
for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
1916 |
|
|
infy_wd (EV_A_ ev->wd, ev->wd, ev); |
1917 |
|
|
} |
1918 |
|
|
|
1919 |
|
|
void inline_size |
1920 |
|
|
infy_init (EV_P) |
1921 |
|
|
{ |
1922 |
|
|
if (fs_fd != -2) |
1923 |
|
|
return; |
1924 |
|
|
|
1925 |
|
|
fs_fd = inotify_init (); |
1926 |
|
|
|
1927 |
|
|
if (fs_fd >= 0) |
1928 |
|
|
{ |
1929 |
|
|
ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
1930 |
|
|
ev_set_priority (&fs_w, EV_MAXPRI); |
1931 |
|
|
ev_io_start (EV_A_ &fs_w); |
1932 |
|
|
} |
1933 |
|
|
} |
1934 |
|
|
|
1935 |
root |
1.154 |
void inline_size |
1936 |
|
|
infy_fork (EV_P) |
1937 |
|
|
{ |
1938 |
|
|
int slot; |
1939 |
|
|
|
1940 |
|
|
if (fs_fd < 0) |
1941 |
|
|
return; |
1942 |
|
|
|
1943 |
|
|
close (fs_fd); |
1944 |
|
|
fs_fd = inotify_init (); |
1945 |
|
|
|
1946 |
|
|
for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
1947 |
|
|
{ |
1948 |
|
|
WL w_ = fs_hash [slot].head; |
1949 |
|
|
fs_hash [slot].head = 0; |
1950 |
|
|
|
1951 |
|
|
while (w_) |
1952 |
|
|
{ |
1953 |
|
|
ev_stat *w = (ev_stat *)w_; |
1954 |
|
|
w_ = w_->next; /* lets us add this watcher */ |
1955 |
|
|
|
1956 |
|
|
w->wd = -1; |
1957 |
|
|
|
1958 |
|
|
if (fs_fd >= 0) |
1959 |
|
|
infy_add (EV_A_ w); /* re-add, no matter what */ |
1960 |
|
|
else |
1961 |
|
|
ev_timer_start (EV_A_ &w->timer); |
1962 |
|
|
} |
1963 |
|
|
|
1964 |
|
|
} |
1965 |
|
|
} |
1966 |
|
|
|
1967 |
root |
1.152 |
#endif |
1968 |
|
|
|
1969 |
root |
1.140 |
void |
1970 |
|
|
ev_stat_stat (EV_P_ ev_stat *w) |
1971 |
|
|
{ |
1972 |
|
|
if (lstat (w->path, &w->attr) < 0) |
1973 |
|
|
w->attr.st_nlink = 0; |
1974 |
|
|
else if (!w->attr.st_nlink) |
1975 |
|
|
w->attr.st_nlink = 1; |
1976 |
|
|
} |
1977 |
|
|
|
1978 |
root |
1.157 |
static void noinline |
1979 |
root |
1.140 |
stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1980 |
|
|
{ |
1981 |
|
|
ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1982 |
|
|
|
1983 |
|
|
/* we copy this here each the time so that */ |
1984 |
|
|
/* prev has the old value when the callback gets invoked */ |
1985 |
|
|
w->prev = w->attr; |
1986 |
|
|
ev_stat_stat (EV_A_ w); |
1987 |
|
|
|
1988 |
root |
1.156 |
/* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
1989 |
|
|
if ( |
1990 |
|
|
w->prev.st_dev != w->attr.st_dev |
1991 |
|
|
|| w->prev.st_ino != w->attr.st_ino |
1992 |
|
|
|| w->prev.st_mode != w->attr.st_mode |
1993 |
|
|
|| w->prev.st_nlink != w->attr.st_nlink |
1994 |
|
|
|| w->prev.st_uid != w->attr.st_uid |
1995 |
|
|
|| w->prev.st_gid != w->attr.st_gid |
1996 |
|
|
|| w->prev.st_rdev != w->attr.st_rdev |
1997 |
|
|
|| w->prev.st_size != w->attr.st_size |
1998 |
|
|
|| w->prev.st_atime != w->attr.st_atime |
1999 |
|
|
|| w->prev.st_mtime != w->attr.st_mtime |
2000 |
|
|
|| w->prev.st_ctime != w->attr.st_ctime |
2001 |
|
|
) { |
2002 |
root |
1.152 |
#if EV_USE_INOTIFY |
2003 |
|
|
infy_del (EV_A_ w); |
2004 |
|
|
infy_add (EV_A_ w); |
2005 |
|
|
ev_stat_stat (EV_A_ w); /* avoid race... */ |
2006 |
|
|
#endif |
2007 |
|
|
|
2008 |
|
|
ev_feed_event (EV_A_ w, EV_STAT); |
2009 |
|
|
} |
2010 |
root |
1.140 |
} |
2011 |
|
|
|
2012 |
|
|
void |
2013 |
|
|
ev_stat_start (EV_P_ ev_stat *w) |
2014 |
|
|
{ |
2015 |
|
|
if (expect_false (ev_is_active (w))) |
2016 |
|
|
return; |
2017 |
|
|
|
2018 |
|
|
/* since we use memcmp, we need to clear any padding data etc. */ |
2019 |
|
|
memset (&w->prev, 0, sizeof (ev_statdata)); |
2020 |
|
|
memset (&w->attr, 0, sizeof (ev_statdata)); |
2021 |
|
|
|
2022 |
|
|
ev_stat_stat (EV_A_ w); |
2023 |
|
|
|
2024 |
root |
1.143 |
if (w->interval < MIN_STAT_INTERVAL) |
2025 |
|
|
w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
2026 |
|
|
|
2027 |
root |
1.140 |
ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2028 |
|
|
ev_set_priority (&w->timer, ev_priority (w)); |
2029 |
root |
1.152 |
|
2030 |
|
|
#if EV_USE_INOTIFY |
2031 |
|
|
infy_init (EV_A); |
2032 |
|
|
|
2033 |
|
|
if (fs_fd >= 0) |
2034 |
|
|
infy_add (EV_A_ w); |
2035 |
|
|
else |
2036 |
|
|
#endif |
2037 |
|
|
ev_timer_start (EV_A_ &w->timer); |
2038 |
root |
1.140 |
|
2039 |
|
|
ev_start (EV_A_ (W)w, 1); |
2040 |
|
|
} |
2041 |
|
|
|
2042 |
|
|
void |
2043 |
|
|
ev_stat_stop (EV_P_ ev_stat *w) |
2044 |
|
|
{ |
2045 |
root |
1.166 |
clear_pending (EV_A_ (W)w); |
2046 |
root |
1.140 |
if (expect_false (!ev_is_active (w))) |
2047 |
|
|
return; |
2048 |
|
|
|
2049 |
root |
1.152 |
#if EV_USE_INOTIFY |
2050 |
|
|
infy_del (EV_A_ w); |
2051 |
|
|
#endif |
2052 |
root |
1.140 |
ev_timer_stop (EV_A_ &w->timer); |
2053 |
|
|
|
2054 |
root |
1.134 |
ev_stop (EV_A_ (W)w); |
2055 |
|
|
} |
2056 |
|
|
#endif |
2057 |
|
|
|
2058 |
root |
1.164 |
#if EV_IDLE_ENABLE |
2059 |
root |
1.144 |
void |
2060 |
|
|
ev_idle_start (EV_P_ ev_idle *w) |
2061 |
|
|
{ |
2062 |
|
|
if (expect_false (ev_is_active (w))) |
2063 |
|
|
return; |
2064 |
|
|
|
2065 |
root |
1.164 |
pri_adjust (EV_A_ (W)w); |
2066 |
|
|
|
2067 |
|
|
{ |
2068 |
|
|
int active = ++idlecnt [ABSPRI (w)]; |
2069 |
|
|
|
2070 |
|
|
++idleall; |
2071 |
|
|
ev_start (EV_A_ (W)w, active); |
2072 |
|
|
|
2073 |
|
|
array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2074 |
|
|
idles [ABSPRI (w)][active - 1] = w; |
2075 |
|
|
} |
2076 |
root |
1.144 |
} |
2077 |
|
|
|
2078 |
|
|
void |
2079 |
|
|
ev_idle_stop (EV_P_ ev_idle *w) |
2080 |
|
|
{ |
2081 |
root |
1.166 |
clear_pending (EV_A_ (W)w); |
2082 |
root |
1.144 |
if (expect_false (!ev_is_active (w))) |
2083 |
|
|
return; |
2084 |
|
|
|
2085 |
|
|
{ |
2086 |
|
|
int active = ((W)w)->active; |
2087 |
root |
1.164 |
|
2088 |
|
|
idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2089 |
|
|
((W)idles [ABSPRI (w)][active - 1])->active = active; |
2090 |
|
|
|
2091 |
|
|
ev_stop (EV_A_ (W)w); |
2092 |
|
|
--idleall; |
2093 |
root |
1.144 |
} |
2094 |
|
|
} |
2095 |
root |
1.164 |
#endif |
2096 |
root |
1.144 |
|
2097 |
|
|
void |
2098 |
|
|
ev_prepare_start (EV_P_ ev_prepare *w) |
2099 |
|
|
{ |
2100 |
|
|
if (expect_false (ev_is_active (w))) |
2101 |
|
|
return; |
2102 |
|
|
|
2103 |
|
|
ev_start (EV_A_ (W)w, ++preparecnt); |
2104 |
|
|
array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2105 |
|
|
prepares [preparecnt - 1] = w; |
2106 |
|
|
} |
2107 |
|
|
|
2108 |
|
|
void |
2109 |
|
|
ev_prepare_stop (EV_P_ ev_prepare *w) |
2110 |
|
|
{ |
2111 |
root |
1.166 |
clear_pending (EV_A_ (W)w); |
2112 |
root |
1.144 |
if (expect_false (!ev_is_active (w))) |
2113 |
|
|
return; |
2114 |
|
|
|
2115 |
|
|
{ |
2116 |
|
|
int active = ((W)w)->active; |
2117 |
|
|
prepares [active - 1] = prepares [--preparecnt]; |
2118 |
|
|
((W)prepares [active - 1])->active = active; |
2119 |
|
|
} |
2120 |
|
|
|
2121 |
|
|
ev_stop (EV_A_ (W)w); |
2122 |
|
|
} |
2123 |
|
|
|
2124 |
|
|
void |
2125 |
|
|
ev_check_start (EV_P_ ev_check *w) |
2126 |
|
|
{ |
2127 |
|
|
if (expect_false (ev_is_active (w))) |
2128 |
|
|
return; |
2129 |
|
|
|
2130 |
|
|
ev_start (EV_A_ (W)w, ++checkcnt); |
2131 |
|
|
array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2132 |
|
|
checks [checkcnt - 1] = w; |
2133 |
|
|
} |
2134 |
|
|
|
2135 |
|
|
void |
2136 |
|
|
ev_check_stop (EV_P_ ev_check *w) |
2137 |
|
|
{ |
2138 |
root |
1.166 |
clear_pending (EV_A_ (W)w); |
2139 |
root |
1.144 |
if (expect_false (!ev_is_active (w))) |
2140 |
|
|
return; |
2141 |
|
|
|
2142 |
|
|
{ |
2143 |
|
|
int active = ((W)w)->active; |
2144 |
|
|
checks [active - 1] = checks [--checkcnt]; |
2145 |
|
|
((W)checks [active - 1])->active = active; |
2146 |
|
|
} |
2147 |
|
|
|
2148 |
|
|
ev_stop (EV_A_ (W)w); |
2149 |
|
|
} |
2150 |
|
|
|
2151 |
|
|
#if EV_EMBED_ENABLE |
2152 |
|
|
void noinline |
2153 |
|
|
ev_embed_sweep (EV_P_ ev_embed *w) |
2154 |
|
|
{ |
2155 |
|
|
ev_loop (w->loop, EVLOOP_NONBLOCK); |
2156 |
|
|
} |
2157 |
|
|
|
2158 |
|
|
static void |
2159 |
|
|
embed_cb (EV_P_ ev_io *io, int revents) |
2160 |
|
|
{ |
2161 |
|
|
ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2162 |
|
|
|
2163 |
|
|
if (ev_cb (w)) |
2164 |
|
|
ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2165 |
|
|
else |
2166 |
|
|
ev_embed_sweep (loop, w); |
2167 |
|
|
} |
2168 |
|
|
|
2169 |
|
|
void |
2170 |
|
|
ev_embed_start (EV_P_ ev_embed *w) |
2171 |
|
|
{ |
2172 |
|
|
if (expect_false (ev_is_active (w))) |
2173 |
|
|
return; |
2174 |
|
|
|
2175 |
|
|
{ |
2176 |
|
|
struct ev_loop *loop = w->loop; |
2177 |
|
|
assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2178 |
|
|
ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2179 |
|
|
} |
2180 |
|
|
|
2181 |
|
|
ev_set_priority (&w->io, ev_priority (w)); |
2182 |
|
|
ev_io_start (EV_A_ &w->io); |
2183 |
|
|
|
2184 |
|
|
ev_start (EV_A_ (W)w, 1); |
2185 |
|
|
} |
2186 |
|
|
|
2187 |
|
|
void |
2188 |
|
|
ev_embed_stop (EV_P_ ev_embed *w) |
2189 |
|
|
{ |
2190 |
root |
1.166 |
clear_pending (EV_A_ (W)w); |
2191 |
root |
1.144 |
if (expect_false (!ev_is_active (w))) |
2192 |
|
|
return; |
2193 |
|
|
|
2194 |
|
|
ev_io_stop (EV_A_ &w->io); |
2195 |
|
|
|
2196 |
|
|
ev_stop (EV_A_ (W)w); |
2197 |
|
|
} |
2198 |
|
|
#endif |
2199 |
|
|
|
2200 |
root |
1.147 |
#if EV_FORK_ENABLE |
2201 |
|
|
void |
2202 |
|
|
ev_fork_start (EV_P_ ev_fork *w) |
2203 |
|
|
{ |
2204 |
|
|
if (expect_false (ev_is_active (w))) |
2205 |
|
|
return; |
2206 |
|
|
|
2207 |
|
|
ev_start (EV_A_ (W)w, ++forkcnt); |
2208 |
|
|
array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2209 |
|
|
forks [forkcnt - 1] = w; |
2210 |
|
|
} |
2211 |
|
|
|
2212 |
|
|
void |
2213 |
|
|
ev_fork_stop (EV_P_ ev_fork *w) |
2214 |
|
|
{ |
2215 |
root |
1.166 |
clear_pending (EV_A_ (W)w); |
2216 |
root |
1.147 |
if (expect_false (!ev_is_active (w))) |
2217 |
|
|
return; |
2218 |
|
|
|
2219 |
|
|
{ |
2220 |
|
|
int active = ((W)w)->active; |
2221 |
|
|
forks [active - 1] = forks [--forkcnt]; |
2222 |
|
|
((W)forks [active - 1])->active = active; |
2223 |
|
|
} |
2224 |
|
|
|
2225 |
|
|
ev_stop (EV_A_ (W)w); |
2226 |
|
|
} |
2227 |
|
|
#endif |
2228 |
|
|
|
2229 |
root |
1.1 |
/*****************************************************************************/ |
2230 |
root |
1.10 |
|
2231 |
root |
1.16 |
struct ev_once |
2232 |
|
|
{ |
2233 |
root |
1.136 |
ev_io io; |
2234 |
|
|
ev_timer to; |
2235 |
root |
1.16 |
void (*cb)(int revents, void *arg); |
2236 |
|
|
void *arg; |
2237 |
|
|
}; |
2238 |
|
|
|
2239 |
|
|
static void |
2240 |
root |
1.51 |
once_cb (EV_P_ struct ev_once *once, int revents) |
2241 |
root |
1.16 |
{ |
2242 |
|
|
void (*cb)(int revents, void *arg) = once->cb; |
2243 |
|
|
void *arg = once->arg; |
2244 |
|
|
|
2245 |
root |
1.51 |
ev_io_stop (EV_A_ &once->io); |
2246 |
|
|
ev_timer_stop (EV_A_ &once->to); |
2247 |
root |
1.69 |
ev_free (once); |
2248 |
root |
1.16 |
|
2249 |
|
|
cb (revents, arg); |
2250 |
|
|
} |
2251 |
|
|
|
2252 |
|
|
static void |
2253 |
root |
1.136 |
once_cb_io (EV_P_ ev_io *w, int revents) |
2254 |
root |
1.16 |
{ |
2255 |
root |
1.51 |
once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2256 |
root |
1.16 |
} |
2257 |
|
|
|
2258 |
|
|
static void |
2259 |
root |
1.136 |
once_cb_to (EV_P_ ev_timer *w, int revents) |
2260 |
root |
1.16 |
{ |
2261 |
root |
1.51 |
once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2262 |
root |
1.16 |
} |
2263 |
|
|
|
2264 |
|
|
void |
2265 |
root |
1.51 |
ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2266 |
root |
1.16 |
{ |
2267 |
root |
1.74 |
struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2268 |
root |
1.16 |
|
2269 |
root |
1.123 |
if (expect_false (!once)) |
2270 |
root |
1.16 |
{ |
2271 |
root |
1.123 |
cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2272 |
|
|
return; |
2273 |
|
|
} |
2274 |
|
|
|
2275 |
|
|
once->cb = cb; |
2276 |
|
|
once->arg = arg; |
2277 |
root |
1.16 |
|
2278 |
root |
1.123 |
ev_init (&once->io, once_cb_io); |
2279 |
|
|
if (fd >= 0) |
2280 |
|
|
{ |
2281 |
|
|
ev_io_set (&once->io, fd, events); |
2282 |
|
|
ev_io_start (EV_A_ &once->io); |
2283 |
|
|
} |
2284 |
root |
1.16 |
|
2285 |
root |
1.123 |
ev_init (&once->to, once_cb_to); |
2286 |
|
|
if (timeout >= 0.) |
2287 |
|
|
{ |
2288 |
|
|
ev_timer_set (&once->to, timeout, 0.); |
2289 |
|
|
ev_timer_start (EV_A_ &once->to); |
2290 |
root |
1.16 |
} |
2291 |
|
|
} |
2292 |
|
|
|
2293 |
root |
1.87 |
#ifdef __cplusplus |
2294 |
|
|
} |
2295 |
|
|
#endif |
2296 |
|
|
|