| author | sl@SLION-WIN7.fritz.box |
| Fri, 15 Jun 2012 03:10:57 +0200 | |
| changeset 0 | bde4ae8d615e |
| permissions | -rw-r--r-- |
| sl@0 | 1 |
// Copyright (C) 2000 Stephen Cleary |
| sl@0 | 2 |
// |
| sl@0 | 3 |
// Distributed under the Boost Software License, Version 1.0. (See |
| sl@0 | 4 |
// accompanying file LICENSE_1_0.txt or copy at |
| sl@0 | 5 |
// http://www.boost.org/LICENSE_1_0.txt) |
| sl@0 | 6 |
// |
| sl@0 | 7 |
// See http://www.boost.org for updates, documentation, and revision history. |
| sl@0 | 8 |
|
| sl@0 | 9 |
#ifndef BOOST_POOL_MUTEX_HPP |
| sl@0 | 10 |
#define BOOST_POOL_MUTEX_HPP |
| sl@0 | 11 |
|
| sl@0 | 12 |
#include <boost/config.hpp> // for workarounds |
| sl@0 | 13 |
|
| sl@0 | 14 |
// Extremely Light-Weight wrapper classes for OS thread synchronization |
| sl@0 | 15 |
|
| sl@0 | 16 |
// Configuration: for now, we just choose between pthread or Win32 mutexes or none |
| sl@0 | 17 |
|
| sl@0 | 18 |
#define BOOST_MUTEX_HELPER_NONE 0 |
| sl@0 | 19 |
#define BOOST_MUTEX_HELPER_WIN32 1 |
| sl@0 | 20 |
#define BOOST_MUTEX_HELPER_PTHREAD 2 |
| sl@0 | 21 |
|
| sl@0 | 22 |
#if !defined(BOOST_HAS_THREADS) && !defined(BOOST_NO_MT) |
| sl@0 | 23 |
# define BOOST_NO_MT |
| sl@0 | 24 |
#endif |
| sl@0 | 25 |
|
| sl@0 | 26 |
#ifdef BOOST_NO_MT |
| sl@0 | 27 |
// No multithreading -> make locks into no-ops |
| sl@0 | 28 |
#define BOOST_MUTEX_HELPER BOOST_MUTEX_HELPER_NONE |
| sl@0 | 29 |
#else |
| sl@0 | 30 |
#ifdef BOOST_WINDOWS |
| sl@0 | 31 |
#define BOOST_MUTEX_HELPER BOOST_MUTEX_HELPER_WIN32 |
| sl@0 | 32 |
#else |
| sl@0 | 33 |
#include <unistd.h> |
| sl@0 | 34 |
#ifdef _POSIX_THREADS |
| sl@0 | 35 |
#define BOOST_MUTEX_HELPER BOOST_MUTEX_HELPER_PTHREAD |
| sl@0 | 36 |
#endif |
| sl@0 | 37 |
#endif |
| sl@0 | 38 |
#endif |
| sl@0 | 39 |
|
| sl@0 | 40 |
#ifndef BOOST_MUTEX_HELPER |
| sl@0 | 41 |
#error Unable to determine platform mutex type; define BOOST_NO_MT to assume single-threaded |
| sl@0 | 42 |
#endif |
| sl@0 | 43 |
|
| sl@0 | 44 |
#ifndef BOOST_NO_MT |
| sl@0 | 45 |
# ifdef BOOST_WINDOWS |
| sl@0 | 46 |
# include <windows.h> |
| sl@0 | 47 |
# endif |
| sl@0 | 48 |
# ifdef _POSIX_THREADS |
| sl@0 | 49 |
# include <pthread.h> |
| sl@0 | 50 |
# endif |
| sl@0 | 51 |
#endif |
| sl@0 | 52 |
|
| sl@0 | 53 |
namespace boost {
|
| sl@0 | 54 |
|
| sl@0 | 55 |
namespace details {
|
| sl@0 | 56 |
namespace pool {
|
| sl@0 | 57 |
|
| sl@0 | 58 |
#ifndef BOOST_NO_MT |
| sl@0 | 59 |
|
| sl@0 | 60 |
#ifdef BOOST_WINDOWS |
| sl@0 | 61 |
|
| sl@0 | 62 |
class win32_mutex |
| sl@0 | 63 |
{
|
| sl@0 | 64 |
private: |
| sl@0 | 65 |
CRITICAL_SECTION mtx; |
| sl@0 | 66 |
|
| sl@0 | 67 |
win32_mutex(const win32_mutex &); |
| sl@0 | 68 |
void operator=(const win32_mutex &); |
| sl@0 | 69 |
|
| sl@0 | 70 |
public: |
| sl@0 | 71 |
win32_mutex() |
| sl@0 | 72 |
{ InitializeCriticalSection(&mtx); }
|
| sl@0 | 73 |
|
| sl@0 | 74 |
~win32_mutex() |
| sl@0 | 75 |
{ DeleteCriticalSection(&mtx); }
|
| sl@0 | 76 |
|
| sl@0 | 77 |
void lock() |
| sl@0 | 78 |
{ EnterCriticalSection(&mtx); }
|
| sl@0 | 79 |
|
| sl@0 | 80 |
void unlock() |
| sl@0 | 81 |
{ LeaveCriticalSection(&mtx); }
|
| sl@0 | 82 |
}; |
| sl@0 | 83 |
|
| sl@0 | 84 |
#endif // defined(BOOST_WINDOWS) |
| sl@0 | 85 |
|
| sl@0 | 86 |
#ifdef _POSIX_THREADS |
| sl@0 | 87 |
|
| sl@0 | 88 |
class pthread_mutex |
| sl@0 | 89 |
{
|
| sl@0 | 90 |
private: |
| sl@0 | 91 |
pthread_mutex_t mtx; |
| sl@0 | 92 |
|
| sl@0 | 93 |
pthread_mutex(const pthread_mutex &); |
| sl@0 | 94 |
void operator=(const pthread_mutex &); |
| sl@0 | 95 |
|
| sl@0 | 96 |
public: |
| sl@0 | 97 |
pthread_mutex() |
| sl@0 | 98 |
{ pthread_mutex_init(&mtx, 0); }
|
| sl@0 | 99 |
|
| sl@0 | 100 |
~pthread_mutex() |
| sl@0 | 101 |
{ pthread_mutex_destroy(&mtx); }
|
| sl@0 | 102 |
|
| sl@0 | 103 |
void lock() |
| sl@0 | 104 |
{ pthread_mutex_lock(&mtx); }
|
| sl@0 | 105 |
|
| sl@0 | 106 |
void unlock() |
| sl@0 | 107 |
{ pthread_mutex_unlock(&mtx); }
|
| sl@0 | 108 |
}; |
| sl@0 | 109 |
|
| sl@0 | 110 |
#endif // defined(_POSIX_THREADS) |
| sl@0 | 111 |
|
| sl@0 | 112 |
#endif // !defined(BOOST_NO_MT) |
| sl@0 | 113 |
|
| sl@0 | 114 |
class null_mutex |
| sl@0 | 115 |
{
|
| sl@0 | 116 |
private: |
| sl@0 | 117 |
null_mutex(const null_mutex &); |
| sl@0 | 118 |
void operator=(const null_mutex &); |
| sl@0 | 119 |
|
| sl@0 | 120 |
public: |
| sl@0 | 121 |
null_mutex() { }
|
| sl@0 | 122 |
|
| sl@0 | 123 |
static void lock() { }
|
| sl@0 | 124 |
static void unlock() { }
|
| sl@0 | 125 |
}; |
| sl@0 | 126 |
|
| sl@0 | 127 |
#if BOOST_MUTEX_HELPER == BOOST_MUTEX_HELPER_NONE |
| sl@0 | 128 |
typedef null_mutex default_mutex; |
| sl@0 | 129 |
#elif BOOST_MUTEX_HELPER == BOOST_MUTEX_HELPER_WIN32 |
| sl@0 | 130 |
typedef win32_mutex default_mutex; |
| sl@0 | 131 |
#elif BOOST_MUTEX_HELPER == BOOST_MUTEX_HELPER_PTHREAD |
| sl@0 | 132 |
typedef pthread_mutex default_mutex; |
| sl@0 | 133 |
#endif |
| sl@0 | 134 |
|
| sl@0 | 135 |
} // namespace pool |
| sl@0 | 136 |
} // namespace details |
| sl@0 | 137 |
|
| sl@0 | 138 |
} // namespace boost |
| sl@0 | 139 |
|
| sl@0 | 140 |
#undef BOOST_MUTEX_HELPER_WIN32 |
| sl@0 | 141 |
#undef BOOST_MUTEX_HELPER_PTHREAD |
| sl@0 | 142 |
#undef BOOST_MUTEX_HELPER_NONE |
| sl@0 | 143 |
#undef BOOST_MUTEX_HELPER |
| sl@0 | 144 |
|
| sl@0 | 145 |
#endif |