1 | // Copyright (C) 2001-2003 |
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2 | // William E. Kempf |
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3 | // |
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4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying |
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5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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6 | |
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7 | #ifndef BOOST_MUTEX_WEK070601_HPP |
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8 | #define BOOST_MUTEX_WEK070601_HPP |
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9 | |
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10 | #include <boost/thread/detail/config.hpp> |
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11 | |
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12 | #include <boost/utility.hpp> |
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13 | #include <boost/thread/detail/lock.hpp> |
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14 | |
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15 | #if defined(BOOST_HAS_PTHREADS) |
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16 | # include <pthread.h> |
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17 | #endif |
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18 | |
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19 | #if defined(BOOST_HAS_MPTASKS) |
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20 | # include "scoped_critical_region.hpp" |
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21 | #endif |
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22 | |
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23 | namespace boost { |
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24 | |
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25 | struct xtime; |
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26 | // disable warnings about non dll import |
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27 | // see: http://www.boost.org/more/separate_compilation.html#dlls |
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28 | #ifdef BOOST_MSVC |
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29 | # pragma warning(push) |
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30 | # pragma warning(disable: 4251 4231 4660 4275) |
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31 | #endif |
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32 | |
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33 | class BOOST_THREAD_DECL mutex |
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34 | : private noncopyable |
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35 | { |
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36 | public: |
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37 | friend class detail::thread::lock_ops<mutex>; |
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38 | |
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39 | typedef detail::thread::scoped_lock<mutex> scoped_lock; |
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40 | |
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41 | mutex(); |
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42 | ~mutex(); |
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43 | |
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44 | private: |
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45 | #if defined(BOOST_HAS_WINTHREADS) |
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46 | typedef void* cv_state; |
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47 | #elif defined(BOOST_HAS_PTHREADS) |
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48 | struct cv_state |
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49 | { |
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50 | pthread_mutex_t* pmutex; |
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51 | }; |
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52 | #elif defined(BOOST_HAS_MPTASKS) |
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53 | struct cv_state |
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54 | { |
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55 | }; |
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56 | #endif |
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57 | void do_lock(); |
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58 | void do_unlock(); |
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59 | void do_lock(cv_state& state); |
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60 | void do_unlock(cv_state& state); |
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61 | |
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62 | #if defined(BOOST_HAS_WINTHREADS) |
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63 | void* m_mutex; |
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64 | bool m_critical_section; |
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65 | #elif defined(BOOST_HAS_PTHREADS) |
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66 | pthread_mutex_t m_mutex; |
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67 | #elif defined(BOOST_HAS_MPTASKS) |
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68 | threads::mac::detail::scoped_critical_region m_mutex; |
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69 | threads::mac::detail::scoped_critical_region m_mutex_mutex; |
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70 | #endif |
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71 | }; |
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72 | |
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73 | class BOOST_THREAD_DECL try_mutex |
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74 | : private noncopyable |
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75 | { |
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76 | public: |
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77 | friend class detail::thread::lock_ops<try_mutex>; |
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78 | |
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79 | typedef detail::thread::scoped_lock<try_mutex> scoped_lock; |
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80 | typedef detail::thread::scoped_try_lock<try_mutex> scoped_try_lock; |
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81 | |
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82 | try_mutex(); |
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83 | ~try_mutex(); |
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84 | |
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85 | private: |
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86 | #if defined(BOOST_HAS_WINTHREADS) |
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87 | typedef void* cv_state; |
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88 | #elif defined(BOOST_HAS_PTHREADS) |
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89 | struct cv_state |
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90 | { |
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91 | pthread_mutex_t* pmutex; |
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92 | }; |
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93 | #elif defined(BOOST_HAS_MPTASKS) |
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94 | struct cv_state |
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95 | { |
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96 | }; |
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97 | #endif |
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98 | void do_lock(); |
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99 | bool do_trylock(); |
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100 | void do_unlock(); |
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101 | void do_lock(cv_state& state); |
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102 | void do_unlock(cv_state& state); |
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103 | |
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104 | #if defined(BOOST_HAS_WINTHREADS) |
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105 | void* m_mutex; |
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106 | bool m_critical_section; |
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107 | #elif defined(BOOST_HAS_PTHREADS) |
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108 | pthread_mutex_t m_mutex; |
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109 | #elif defined(BOOST_HAS_MPTASKS) |
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110 | threads::mac::detail::scoped_critical_region m_mutex; |
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111 | threads::mac::detail::scoped_critical_region m_mutex_mutex; |
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112 | #endif |
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113 | }; |
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114 | |
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115 | class BOOST_THREAD_DECL timed_mutex |
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116 | : private noncopyable |
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117 | { |
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118 | public: |
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119 | friend class detail::thread::lock_ops<timed_mutex>; |
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120 | |
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121 | typedef detail::thread::scoped_lock<timed_mutex> scoped_lock; |
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122 | typedef detail::thread::scoped_try_lock<timed_mutex> scoped_try_lock; |
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123 | typedef detail::thread::scoped_timed_lock<timed_mutex> scoped_timed_lock; |
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124 | |
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125 | timed_mutex(); |
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126 | ~timed_mutex(); |
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127 | |
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128 | private: |
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129 | #if defined(BOOST_HAS_WINTHREADS) |
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130 | typedef void* cv_state; |
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131 | #elif defined(BOOST_HAS_PTHREADS) |
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132 | struct cv_state |
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133 | { |
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134 | pthread_mutex_t* pmutex; |
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135 | }; |
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136 | #elif defined(BOOST_HAS_MPTASKS) |
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137 | struct cv_state |
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138 | { |
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139 | }; |
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140 | #endif |
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141 | void do_lock(); |
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142 | bool do_trylock(); |
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143 | bool do_timedlock(const xtime& xt); |
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144 | void do_unlock(); |
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145 | void do_lock(cv_state& state); |
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146 | void do_unlock(cv_state& state); |
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147 | |
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148 | #if defined(BOOST_HAS_WINTHREADS) |
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149 | void* m_mutex; |
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150 | #elif defined(BOOST_HAS_PTHREADS) |
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151 | pthread_mutex_t m_mutex; |
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152 | pthread_cond_t m_condition; |
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153 | bool m_locked; |
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154 | #elif defined(BOOST_HAS_MPTASKS) |
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155 | threads::mac::detail::scoped_critical_region m_mutex; |
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156 | threads::mac::detail::scoped_critical_region m_mutex_mutex; |
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157 | #endif |
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158 | }; |
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159 | #ifdef BOOST_MSVC |
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160 | # pragma warning(pop) |
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161 | #endif |
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162 | } // namespace boost |
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163 | |
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164 | // Change Log: |
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165 | // 8 Feb 01 WEKEMPF Initial version. |
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166 | // 22 May 01 WEKEMPF Modified to use xtime for time outs. Factored out |
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167 | // to three classes, mutex, try_mutex and timed_mutex. |
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168 | // 3 Jan 03 WEKEMPF Modified for DLL implementation. |
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169 | |
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170 | #endif // BOOST_MUTEX_WEK070601_HPP |
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