PageRenderTime 52ms CodeModel.GetById 22ms RepoModel.GetById 0ms app.codeStats 0ms

/jack-1.9.8/doc/html/JackWinMutex_8h_source.html

#
HTML | 177 lines | 176 code | 0 blank | 1 comment | 0 complexity | ab46f5c547cdf8d05893bb9b2d0f14b1 MD5 | raw file
Possible License(s): GPL-3.0 
    

  1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    2. 

  2. <html xmlns="http://www.w3.org/1999/xhtml">
    3. 

  3. <head>
    4. 

  4. <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
    5. 

  5. <title>Jack2: JackWinMutex.h Source File</title>
    6. 

  6. <link href="tabs.css" rel="stylesheet" type="text/css"/>
    7. 

  7. <link href="doxygen.css" rel="stylesheet" type="text/css"/>
    8. 

  8. </head>
    9. 

  9. <body>
    10. 

  10. <!-- Generated by Doxygen 1.6.2 -->
    11. 

  11. <div class="navigation" id="top">
    12. 

  12.   <div class="tabs">
    13. 

  13.     <ul>
    14. 

  14.       <li><a href="index.html"><span>Main&nbsp;Page</span></a></li>
    15. 

  15.       <li><a href="pages.html"><span>Related&nbsp;Pages</span></a></li>
    16. 

  16.       <li><a href="modules.html"><span>Modules</span></a></li>
    17. 

  17.       <li><a href="annotated.html"><span>Classes</span></a></li>
    18. 

  18.       <li class="current"><a href="files.html"><span>Files</span></a></li>
    19. 

  19.     </ul>
    20. 

  20.   </div>
    21. 

  21.   <div class="tabs">
    22. 

  22.     <ul>
    23. 

  23.       <li><a href="files.html"><span>File&nbsp;List</span></a></li>
    24. 

  24.       <li><a href="globals.html"><span>File&nbsp;Members</span></a></li>
    25. 

  25.     </ul>
    26. 

  26.   </div>
    27. 

  27. <h1>JackWinMutex.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
    28. 

  28. <a name="l00002"></a>00002 <span class="comment"> Copyright (C) 2004-2008 Grame</span>
    29. 

  29. <a name="l00003"></a>00003 <span class="comment"></span>
    30. 

  30. <a name="l00004"></a>00004 <span class="comment"> This program is free software; you can redistribute it and/or modify</span>
    31. 

  31. <a name="l00005"></a>00005 <span class="comment"> it under the terms of the GNU Lesser General Public License as published by</span>
    32. 

  32. <a name="l00006"></a>00006 <span class="comment"> the Free Software Foundation; either version 2.1 of the License, or</span>
    33. 

  33. <a name="l00007"></a>00007 <span class="comment"> (at your option) any later version.</span>
    34. 

  34. <a name="l00008"></a>00008 <span class="comment"></span>
    35. 

  35. <a name="l00009"></a>00009 <span class="comment"> This program is distributed in the hope that it will be useful,</span>
    36. 

  36. <a name="l00010"></a>00010 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
    37. 

  37. <a name="l00011"></a>00011 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
    38. 

  38. <a name="l00012"></a>00012 <span class="comment"> GNU Lesser General Public License for more details.</span>
    39. 

  39. <a name="l00013"></a>00013 <span class="comment"></span>
    40. 

  40. <a name="l00014"></a>00014 <span class="comment"> You should have received a copy of the GNU Lesser General Public License</span>
    41. 

  41. <a name="l00015"></a>00015 <span class="comment"> along with this program; if not, write to the Free Software</span>
    42. 

  42. <a name="l00016"></a>00016 <span class="comment"> Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.</span>
    43. 

  43. <a name="l00017"></a>00017 <span class="comment"></span>
    44. 

  44. <a name="l00018"></a>00018 <span class="comment"> */</span>
    45. 

  45. <a name="l00019"></a>00019 
    46. 

  46. <a name="l00020"></a>00020 
    47. 

  47. <a name="l00021"></a>00021 <span class="preprocessor">#ifndef __JackWinMutex__</span>
    48. 

  48. <a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#define __JackWinMutex__</span>
    49. 

  49. <a name="l00023"></a>00023 <span class="preprocessor"></span>
    50. 

  50. <a name="l00024"></a>00024 <span class="preprocessor">#include &quot;JackError.h&quot;</span>
    51. 

  51. <a name="l00025"></a>00025 <span class="preprocessor">#include &quot;JackException.h&quot;</span>
    52. 

  52. <a name="l00026"></a>00026 <span class="preprocessor">#include &lt;windows.h&gt;</span>
    53. 

  53. <a name="l00027"></a>00027 
    54. 

  54. <a name="l00028"></a>00028 <span class="keyword">namespace </span>Jack
    55. 

  55. <a name="l00029"></a>00029 {
    56. 

  56. <a name="l00033"></a><a class="code" href="classJack_1_1JackBaseWinMutex.html">00033</a> <span class="keyword">class </span><a class="code" href="classJack_1_1JackBaseWinMutex.html" title="Mutex abstraction.">JackBaseWinMutex</a>
    57. 

  57. <a name="l00034"></a>00034 {
    58. 

  58. <a name="l00035"></a>00035 
    59. 

  59. <a name="l00036"></a>00036     <span class="keyword">protected</span>:
    60. 

  60. <a name="l00037"></a>00037 
    61. 

  61. <a name="l00038"></a>00038         HANDLE fMutex;
    62. 

  62. <a name="l00039"></a>00039         DWORD fOwner;
    63. 

  63. <a name="l00040"></a>00040 
    64. 

  64. <a name="l00041"></a>00041     <span class="keyword">public</span>:
    65. 

  65. <a name="l00042"></a>00042 
    66. 

  66. <a name="l00043"></a>00043         <a class="code" href="classJack_1_1JackBaseWinMutex.html" title="Mutex abstraction.">JackBaseWinMutex</a>():fOwner(0)
    67. 

  67. <a name="l00044"></a>00044         {
    68. 

  68. <a name="l00045"></a>00045             <span class="comment">// In recursive mode by default</span>
    69. 

  69. <a name="l00046"></a>00046             fMutex = (HANDLE)CreateMutex(0, FALSE, 0);
    70. 

  70. <a name="l00047"></a>00047             ThrowIf(fMutex == 0, <a class="code" href="classJack_1_1JackException.html" title="Exception base class.">JackException</a>(<span class="stringliteral">&quot;JackWinMutex: could not init the mutex&quot;</span>));
    71. 

  71. <a name="l00048"></a>00048         }
    72. 

  72. <a name="l00049"></a>00049 
    73. 

  73. <a name="l00050"></a>00050         <span class="keyword">virtual</span> ~<a class="code" href="classJack_1_1JackBaseWinMutex.html" title="Mutex abstraction.">JackBaseWinMutex</a>()
    74. 

  74. <a name="l00051"></a>00051         {
    75. 

  75. <a name="l00052"></a>00052             CloseHandle(fMutex);
    76. 

  76. <a name="l00053"></a>00053         }
    77. 

  77. <a name="l00054"></a>00054 
    78. 

  78. <a name="l00055"></a>00055         <span class="keywordtype">bool</span> Lock()
    79. 

  79. <a name="l00056"></a>00056         {
    80. 

  80. <a name="l00057"></a>00057             <span class="keywordflow">if</span> (fOwner != GetCurrentThreadId()) {
    81. 

  81. <a name="l00058"></a>00058                 DWORD res = WaitForSingleObject(fMutex, INFINITE);
    82. 

  82. <a name="l00059"></a>00059                 <span class="keywordflow">if</span> (res == WAIT_OBJECT_0) {
    83. 

  83. <a name="l00060"></a>00060                     fOwner = GetCurrentThreadId();
    84. 

  84. <a name="l00061"></a>00061                     <span class="keywordflow">return</span> <span class="keyword">true</span>;
    85. 

  85. <a name="l00062"></a>00062                 } <span class="keywordflow">else</span> {
    86. 

  86. <a name="l00063"></a>00063                     <a class="code" href="group__ControlAPI.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">&quot;JackWinMutex::Lock res = %d&quot;</span>, res);
    87. 

  87. <a name="l00064"></a>00064                     <span class="keywordflow">return</span> <span class="keyword">false</span>;
    88. 

  88. <a name="l00065"></a>00065                 }
    89. 

  89. <a name="l00066"></a>00066             } <span class="keywordflow">else</span> {
    90. 

  90. <a name="l00067"></a>00067                 <a class="code" href="group__ControlAPI.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">&quot;JackWinMutex::Lock mutex already locked by thread = %d&quot;</span>, GetCurrentThreadId());
    91. 

  91. <a name="l00068"></a>00068                 <span class="keywordflow">return</span> <span class="keyword">false</span>;
    92. 

  92. <a name="l00069"></a>00069             }
    93. 

  93. <a name="l00070"></a>00070         }
    94. 

  94. <a name="l00071"></a>00071 
    95. 

  95. <a name="l00072"></a>00072         <span class="keywordtype">bool</span> Trylock()
    96. 

  96. <a name="l00073"></a>00073         {
    97. 

  97. <a name="l00074"></a>00074             <span class="keywordflow">if</span> (fOwner != GetCurrentThreadId()) {
    98. 

  98. <a name="l00075"></a>00075                 DWORD res = WaitForSingleObject(fMutex, 0);
    99. 

  99. <a name="l00076"></a>00076                 <span class="keywordflow">if</span> (res == WAIT_OBJECT_0) {
    100. 

  100. <a name="l00077"></a>00077                     fOwner = GetCurrentThreadId();
    101. 

  101. <a name="l00078"></a>00078                     <span class="keywordflow">return</span> <span class="keyword">true</span>;
    102. 

  102. <a name="l00079"></a>00079                 } <span class="keywordflow">else</span> {
    103. 

  103. <a name="l00080"></a>00080                     <a class="code" href="group__ControlAPI.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">&quot;JackWinMutex::Trylock res = %d&quot;</span>, res);
    104. 

  104. <a name="l00081"></a>00081                     <span class="keywordflow">return</span> <span class="keyword">false</span>;
    105. 

  105. <a name="l00082"></a>00082                 }
    106. 

  106. <a name="l00083"></a>00083             } <span class="keywordflow">else</span> {
    107. 

  107. <a name="l00084"></a>00084                 <a class="code" href="group__ControlAPI.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">&quot;JackWinMutex::Trylock mutex already locked by thread = %d&quot;</span>, GetCurrentThreadId());
    108. 

  108. <a name="l00085"></a>00085                 <span class="keywordflow">return</span> <span class="keyword">false</span>;
    109. 

  109. <a name="l00086"></a>00086             }
    110. 

  110. <a name="l00087"></a>00087         }
    111. 

  111. <a name="l00088"></a>00088 
    112. 

  112. <a name="l00089"></a>00089         <span class="keywordtype">bool</span> Unlock()
    113. 

  113. <a name="l00090"></a>00090         {
    114. 

  114. <a name="l00091"></a>00091             <span class="keywordflow">if</span> (fOwner == GetCurrentThreadId()) {
    115. 

  115. <a name="l00092"></a>00092                 fOwner = 0;
    116. 

  116. <a name="l00093"></a>00093                 <span class="keywordtype">int</span> res = ReleaseMutex(fMutex);
    117. 

  117. <a name="l00094"></a>00094                 <span class="keywordflow">if</span> (res != 0) {
    118. 

  118. <a name="l00095"></a>00095                     <span class="keywordflow">return</span> <span class="keyword">true</span>;
    119. 

  119. <a name="l00096"></a>00096                 } <span class="keywordflow">else</span> {
    120. 

  120. <a name="l00097"></a>00097                     <a class="code" href="group__ControlAPI.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">&quot;JackWinMutex::Unlock res = %d&quot;</span>, res);
    121. 

  121. <a name="l00098"></a>00098                     <span class="keywordflow">return</span> <span class="keyword">false</span>;
    122. 

  122. <a name="l00099"></a>00099                 }
    123. 

  123. <a name="l00100"></a>00100             } <span class="keywordflow">else</span> {
    124. 

  124. <a name="l00101"></a>00101                 <a class="code" href="group__ControlAPI.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">&quot;JackWinMutex::Unlock mutex not locked by thread = %d&quot;</span>, GetCurrentThreadId());
    125. 

  125. <a name="l00102"></a>00102                 <span class="keywordflow">return</span> <span class="keyword">false</span>;
    126. 

  126. <a name="l00103"></a>00103             }
    127. 

  127. <a name="l00104"></a>00104         }
    128. 

  128. <a name="l00105"></a>00105 
    129. 

  129. <a name="l00106"></a>00106 };
    130. 

  130. <a name="l00107"></a>00107 
    131. 

  131. <a name="l00108"></a><a class="code" href="classJack_1_1JackWinMutex.html">00108</a> <span class="keyword">class </span><a class="code" href="classJack_1_1JackWinMutex.html">JackWinMutex</a>
    132. 

  132. <a name="l00109"></a>00109 {
    133. 

  133. <a name="l00110"></a>00110 
    134. 

  134. <a name="l00111"></a>00111     <span class="keyword">protected</span>:
    135. 

  135. <a name="l00112"></a>00112 
    136. 

  136. <a name="l00113"></a>00113         HANDLE fMutex;
    137. 

  137. <a name="l00114"></a>00114 
    138. 

  138. <a name="l00115"></a>00115     <span class="keyword">public</span>:
    139. 

  139. <a name="l00116"></a>00116 
    140. 

  140. <a name="l00117"></a>00117         <a class="code" href="classJack_1_1JackWinMutex.html">JackWinMutex</a>()
    141. 

  141. <a name="l00118"></a>00118         {
    142. 

  142. <a name="l00119"></a>00119             <span class="comment">// In recursive mode by default</span>
    143. 

  143. <a name="l00120"></a>00120             fMutex = (HANDLE)CreateMutex(0, FALSE, 0);
    144. 

  144. <a name="l00121"></a>00121         }
    145. 

  145. <a name="l00122"></a>00122 
    146. 

  146. <a name="l00123"></a>00123         <span class="keyword">virtual</span> ~<a class="code" href="classJack_1_1JackWinMutex.html">JackWinMutex</a>()
    147. 

  147. <a name="l00124"></a>00124         {
    148. 

  148. <a name="l00125"></a>00125             CloseHandle(fMutex);
    149. 

  149. <a name="l00126"></a>00126         }
    150. 

  150. <a name="l00127"></a>00127 
    151. 

  151. <a name="l00128"></a>00128         <span class="keywordtype">bool</span> Lock()
    152. 

  152. <a name="l00129"></a>00129         {
    153. 

  153. <a name="l00130"></a>00130             <span class="keywordflow">return</span> (WAIT_OBJECT_0 == WaitForSingleObject(fMutex, INFINITE));
    154. 

  154. <a name="l00131"></a>00131         }
    155. 

  155. <a name="l00132"></a>00132 
    156. 

  156. <a name="l00133"></a>00133         <span class="keywordtype">bool</span> Trylock()
    157. 

  157. <a name="l00134"></a>00134         {
    158. 

  158. <a name="l00135"></a>00135             <span class="keywordflow">return</span> (WAIT_OBJECT_0 == WaitForSingleObject(fMutex, 0));
    159. 

  159. <a name="l00136"></a>00136         }
    160. 

  160. <a name="l00137"></a>00137 
    161. 

  161. <a name="l00138"></a>00138         <span class="keywordtype">bool</span> Unlock()
    162. 

  162. <a name="l00139"></a>00139         {
    163. 

  163. <a name="l00140"></a>00140             <span class="keywordflow">return</span>(ReleaseMutex(fMutex) != 0);
    164. 

  164. <a name="l00141"></a>00141         }
    165. 

  165. <a name="l00142"></a>00142 
    166. 

  166. <a name="l00143"></a>00143 };
    167. 

  167. <a name="l00144"></a>00144 
    168. 

  168. <a name="l00145"></a>00145 
    169. 

  169. <a name="l00146"></a>00146 } <span class="comment">// namespace</span>
    170. 

  170. <a name="l00147"></a>00147 
    171. 

  171. <a name="l00148"></a>00148 <span class="preprocessor">#endif</span>
    172. 

  172. </pre></div></div>
    173. 

  173. <hr size="1"/><address style="text-align: right;"><small>Generated by&nbsp;
    174. 

  174. <a href="http://www.doxygen.org/index.html">
    175. 

  175. <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address>
    176. 

  176. </body>
    177. 

  177. </html>
    178. 

  178.