1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/ossrv_pub/boost_apis/boost/pool/detail/mutex.hpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,145 @@
     1.4 +// Copyright (C) 2000 Stephen Cleary
     1.5 +//
     1.6 +// Distributed under the Boost Software License, Version 1.0. (See
     1.7 +// accompanying file LICENSE_1_0.txt or copy at
     1.8 +// http://www.boost.org/LICENSE_1_0.txt)
     1.9 +//
    1.10 +// See http://www.boost.org for updates, documentation, and revision history.
    1.11 +
    1.12 +#ifndef BOOST_POOL_MUTEX_HPP
    1.13 +#define BOOST_POOL_MUTEX_HPP
    1.14 +
    1.15 +#include <boost/config.hpp>  // for workarounds
    1.16 +
    1.17 +// Extremely Light-Weight wrapper classes for OS thread synchronization
    1.18 +
    1.19 +// Configuration: for now, we just choose between pthread or Win32 mutexes or none
    1.20 +
    1.21 +#define BOOST_MUTEX_HELPER_NONE         0
    1.22 +#define BOOST_MUTEX_HELPER_WIN32        1
    1.23 +#define BOOST_MUTEX_HELPER_PTHREAD      2
    1.24 +
    1.25 +#if !defined(BOOST_HAS_THREADS) && !defined(BOOST_NO_MT)
    1.26 +# define BOOST_NO_MT
    1.27 +#endif
    1.28 +
    1.29 +#ifdef BOOST_NO_MT
    1.30 +  // No multithreading -> make locks into no-ops
    1.31 +  #define BOOST_MUTEX_HELPER BOOST_MUTEX_HELPER_NONE
    1.32 +#else
    1.33 +  #ifdef BOOST_WINDOWS
    1.34 +    #define BOOST_MUTEX_HELPER BOOST_MUTEX_HELPER_WIN32
    1.35 +  #else
    1.36 +    #include <unistd.h>
    1.37 +    #ifdef _POSIX_THREADS
    1.38 +      #define BOOST_MUTEX_HELPER BOOST_MUTEX_HELPER_PTHREAD
    1.39 +    #endif
    1.40 +  #endif
    1.41 +#endif
    1.42 +
    1.43 +#ifndef BOOST_MUTEX_HELPER
    1.44 +  #error Unable to determine platform mutex type; define BOOST_NO_MT to assume single-threaded
    1.45 +#endif
    1.46 +
    1.47 +#ifndef BOOST_NO_MT
    1.48 +# ifdef BOOST_WINDOWS
    1.49 +#  include <windows.h>
    1.50 +# endif
    1.51 +# ifdef _POSIX_THREADS
    1.52 +#  include <pthread.h>
    1.53 +# endif
    1.54 +#endif
    1.55 +
    1.56 +namespace boost {
    1.57 +
    1.58 +namespace details {
    1.59 +namespace pool {
    1.60 +
    1.61 +#ifndef BOOST_NO_MT
    1.62 +
    1.63 +#ifdef BOOST_WINDOWS
    1.64 +
    1.65 +class win32_mutex
    1.66 +{
    1.67 +  private:
    1.68 +    CRITICAL_SECTION mtx;
    1.69 +
    1.70 +    win32_mutex(const win32_mutex &);
    1.71 +    void operator=(const win32_mutex &);
    1.72 +
    1.73 +  public:
    1.74 +    win32_mutex()
    1.75 +    { InitializeCriticalSection(&mtx); }
    1.76 +
    1.77 +    ~win32_mutex()
    1.78 +    { DeleteCriticalSection(&mtx); }
    1.79 +
    1.80 +    void lock()
    1.81 +    { EnterCriticalSection(&mtx); }
    1.82 +
    1.83 +    void unlock()
    1.84 +    { LeaveCriticalSection(&mtx); }
    1.85 +};
    1.86 +
    1.87 +#endif // defined(BOOST_WINDOWS)
    1.88 +
    1.89 +#ifdef _POSIX_THREADS
    1.90 +
    1.91 +class pthread_mutex
    1.92 +{
    1.93 +  private:
    1.94 +    pthread_mutex_t mtx;
    1.95 +
    1.96 +    pthread_mutex(const pthread_mutex &);
    1.97 +    void operator=(const pthread_mutex &);
    1.98 +
    1.99 +  public:
   1.100 +    pthread_mutex()
   1.101 +    { pthread_mutex_init(&mtx, 0); }
   1.102 +
   1.103 +    ~pthread_mutex()
   1.104 +    { pthread_mutex_destroy(&mtx); }
   1.105 +
   1.106 +    void lock()
   1.107 +    { pthread_mutex_lock(&mtx); }
   1.108 +
   1.109 +    void unlock()
   1.110 +    { pthread_mutex_unlock(&mtx); }
   1.111 +};
   1.112 +
   1.113 +#endif // defined(_POSIX_THREADS)
   1.114 +
   1.115 +#endif // !defined(BOOST_NO_MT)
   1.116 +
   1.117 +class null_mutex
   1.118 +{
   1.119 +  private:
   1.120 +    null_mutex(const null_mutex &);
   1.121 +    void operator=(const null_mutex &);
   1.122 +
   1.123 +  public:
   1.124 +    null_mutex() { }
   1.125 +
   1.126 +    static void lock() { }
   1.127 +    static void unlock() { }
   1.128 +};
   1.129 +
   1.130 +#if BOOST_MUTEX_HELPER == BOOST_MUTEX_HELPER_NONE
   1.131 +  typedef null_mutex default_mutex;
   1.132 +#elif BOOST_MUTEX_HELPER == BOOST_MUTEX_HELPER_WIN32
   1.133 +  typedef win32_mutex default_mutex;
   1.134 +#elif BOOST_MUTEX_HELPER == BOOST_MUTEX_HELPER_PTHREAD
   1.135 +  typedef pthread_mutex default_mutex;
   1.136 +#endif
   1.137 +
   1.138 +} // namespace pool
   1.139 +} // namespace details
   1.140 +
   1.141 +} // namespace boost
   1.142 +
   1.143 +#undef BOOST_MUTEX_HELPER_WIN32
   1.144 +#undef BOOST_MUTEX_HELPER_PTHREAD
   1.145 +#undef BOOST_MUTEX_HELPER_NONE
   1.146 +#undef BOOST_MUTEX_HELPER
   1.147 +
   1.148 +#endif