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<a href="#typedef-members">Typedefs</a> |
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<div class="headertitle"><div class="title">mutex.h File Reference</div></div>
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<div class="contents">
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<p>Mutex synchronization primitive.
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include <sys/lock.h></code><br />
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<code>#include "<a class="el" href="types_8h_source.html">../types.h</a>"</code><br />
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</div>
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<table class="memberdecls">
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Typedefs</h2></td></tr>
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<tr class="memitem:a2d649c880d4330dc891cda67837eb897" id="r_a2d649c880d4330dc891cda67837eb897"><td class="memItemLeft" align="right" valign="top"><a id="a2d649c880d4330dc891cda67837eb897" name="a2d649c880d4330dc891cda67837eb897"></a>
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typedef _LOCK_T </td><td class="memItemRight" valign="bottom"><b>Mutex</b></td></tr>
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<tr class="memdesc:a2d649c880d4330dc891cda67837eb897"><td class="mdescLeft"> </td><td class="mdescRight">Mutex datatype, defined in newlib. <br /></td></tr>
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<tr class="separator:a2d649c880d4330dc891cda67837eb897"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a2f2d4d58b8e3fd8af6e0bf3209fb156c" id="r_a2f2d4d58b8e3fd8af6e0bf3209fb156c"><td class="memItemLeft" align="right" valign="top"><a id="a2f2d4d58b8e3fd8af6e0bf3209fb156c" name="a2f2d4d58b8e3fd8af6e0bf3209fb156c"></a>
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typedef _LOCK_RECURSIVE_T </td><td class="memItemRight" valign="bottom"><b>RMutex</b></td></tr>
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<tr class="memdesc:a2f2d4d58b8e3fd8af6e0bf3209fb156c"><td class="mdescLeft"> </td><td class="mdescRight">Recursive mutex datatype, defined in newlib. <br /></td></tr>
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<tr class="separator:a2f2d4d58b8e3fd8af6e0bf3209fb156c"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:a5b5f4842680656dda447d2f46011ccbd" id="r_a5b5f4842680656dda447d2f46011ccbd"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="mutex_8h.html#a5b5f4842680656dda447d2f46011ccbd">mutexInit</a> (<a class="el" href="mutex_8h.html#a2d649c880d4330dc891cda67837eb897">Mutex</a> *m)</td></tr>
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<tr class="memdesc:a5b5f4842680656dda447d2f46011ccbd"><td class="mdescLeft"> </td><td class="mdescRight">Initializes a mutex. <br /></td></tr>
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<tr class="separator:a5b5f4842680656dda447d2f46011ccbd"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a8fca41abd240c6c5d41554d36eaebc17" id="r_a8fca41abd240c6c5d41554d36eaebc17"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="mutex_8h.html#a8fca41abd240c6c5d41554d36eaebc17">mutexLock</a> (<a class="el" href="mutex_8h.html#a2d649c880d4330dc891cda67837eb897">Mutex</a> *m)</td></tr>
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<tr class="memdesc:a8fca41abd240c6c5d41554d36eaebc17"><td class="mdescLeft"> </td><td class="mdescRight">Locks a mutex. <br /></td></tr>
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<tr class="separator:a8fca41abd240c6c5d41554d36eaebc17"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a70bddc6f3b732a315d4004656988d6bc" id="r_a70bddc6f3b732a315d4004656988d6bc"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="mutex_8h.html#a70bddc6f3b732a315d4004656988d6bc">mutexTryLock</a> (<a class="el" href="mutex_8h.html#a2d649c880d4330dc891cda67837eb897">Mutex</a> *m)</td></tr>
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<tr class="memdesc:a70bddc6f3b732a315d4004656988d6bc"><td class="mdescLeft"> </td><td class="mdescRight">Attempts to lock a mutex without waiting. <br /></td></tr>
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<tr class="separator:a70bddc6f3b732a315d4004656988d6bc"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a502b8f0e525b7c32cdd204a4949a24b3" id="r_a502b8f0e525b7c32cdd204a4949a24b3"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="mutex_8h.html#a502b8f0e525b7c32cdd204a4949a24b3">mutexUnlock</a> (<a class="el" href="mutex_8h.html#a2d649c880d4330dc891cda67837eb897">Mutex</a> *m)</td></tr>
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<tr class="memdesc:a502b8f0e525b7c32cdd204a4949a24b3"><td class="mdescLeft"> </td><td class="mdescRight">Unlocks a mutex. <br /></td></tr>
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<tr class="separator:a502b8f0e525b7c32cdd204a4949a24b3"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aae31cc20ba6bad0525a37c5de42fe38a" id="r_aae31cc20ba6bad0525a37c5de42fe38a"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="mutex_8h.html#aae31cc20ba6bad0525a37c5de42fe38a">mutexIsLockedByCurrentThread</a> (const <a class="el" href="mutex_8h.html#a2d649c880d4330dc891cda67837eb897">Mutex</a> *m)</td></tr>
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<tr class="memdesc:aae31cc20ba6bad0525a37c5de42fe38a"><td class="mdescLeft"> </td><td class="mdescRight">Gets whether the current thread owns the mutex. <br /></td></tr>
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<tr class="separator:aae31cc20ba6bad0525a37c5de42fe38a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af486c816008970eaf842c56b9a20dd60" id="r_af486c816008970eaf842c56b9a20dd60"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="mutex_8h.html#af486c816008970eaf842c56b9a20dd60">rmutexInit</a> (<a class="el" href="mutex_8h.html#a2f2d4d58b8e3fd8af6e0bf3209fb156c">RMutex</a> *m)</td></tr>
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<tr class="memdesc:af486c816008970eaf842c56b9a20dd60"><td class="mdescLeft"> </td><td class="mdescRight">Initializes a recursive mutex. <br /></td></tr>
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<tr class="separator:af486c816008970eaf842c56b9a20dd60"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ab19f58528e1ab9616bc5a59266a0ed20" id="r_ab19f58528e1ab9616bc5a59266a0ed20"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="mutex_8h.html#ab19f58528e1ab9616bc5a59266a0ed20">rmutexLock</a> (<a class="el" href="mutex_8h.html#a2f2d4d58b8e3fd8af6e0bf3209fb156c">RMutex</a> *m)</td></tr>
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<tr class="memdesc:ab19f58528e1ab9616bc5a59266a0ed20"><td class="mdescLeft"> </td><td class="mdescRight">Locks a recursive mutex. <br /></td></tr>
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<tr class="separator:ab19f58528e1ab9616bc5a59266a0ed20"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a68584b2a443d389834e492eaf54e4b2f" id="r_a68584b2a443d389834e492eaf54e4b2f"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="mutex_8h.html#a68584b2a443d389834e492eaf54e4b2f">rmutexTryLock</a> (<a class="el" href="mutex_8h.html#a2f2d4d58b8e3fd8af6e0bf3209fb156c">RMutex</a> *m)</td></tr>
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<tr class="memdesc:a68584b2a443d389834e492eaf54e4b2f"><td class="mdescLeft"> </td><td class="mdescRight">Attempts to lock a recursive mutex without waiting. <br /></td></tr>
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<tr class="separator:a68584b2a443d389834e492eaf54e4b2f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a96a01191d7aa5c3d6444e0467a96bdb1" id="r_a96a01191d7aa5c3d6444e0467a96bdb1"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="mutex_8h.html#a96a01191d7aa5c3d6444e0467a96bdb1">rmutexUnlock</a> (<a class="el" href="mutex_8h.html#a2f2d4d58b8e3fd8af6e0bf3209fb156c">RMutex</a> *m)</td></tr>
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<tr class="memdesc:a96a01191d7aa5c3d6444e0467a96bdb1"><td class="mdescLeft"> </td><td class="mdescRight">Unlocks a recursive mutex. <br /></td></tr>
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<tr class="separator:a96a01191d7aa5c3d6444e0467a96bdb1"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Mutex synchronization primitive. </p>
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<dl class="section author"><dt>Author</dt><dd>plutoo </dd></dl>
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<dl class="section copyright"><dt>Copyright</dt><dd>libnx Authors </dd></dl>
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</div><h2 class="groupheader">Function Documentation</h2>
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<a id="a5b5f4842680656dda447d2f46011ccbd" name="a5b5f4842680656dda447d2f46011ccbd"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a5b5f4842680656dda447d2f46011ccbd">◆ </a></span>mutexInit()</h2>
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<td class="memname">static void mutexInit </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="mutex_8h.html#a2d649c880d4330dc891cda67837eb897">Mutex</a> * </td>
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<td class="paramname"><em>m</em></td><td>)</td>
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<p>Initializes a mutex. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<dl class="section note"><dt>Note</dt><dd>A mutex can also be statically initialized by assigning 0 to it. </dd></dl>
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<a id="aae31cc20ba6bad0525a37c5de42fe38a" name="aae31cc20ba6bad0525a37c5de42fe38a"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#aae31cc20ba6bad0525a37c5de42fe38a">◆ </a></span>mutexIsLockedByCurrentThread()</h2>
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<td class="memname">bool mutexIsLockedByCurrentThread </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="mutex_8h.html#a2d649c880d4330dc891cda67837eb897">Mutex</a> * </td>
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<td class="paramname"><em>m</em></td><td>)</td>
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<p>Gets whether the current thread owns the mutex. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">m</td><td>Mutex object. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>1 if the mutex is locked by the current thread, and 0 otherwise. </dd></dl>
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<a id="a8fca41abd240c6c5d41554d36eaebc17" name="a8fca41abd240c6c5d41554d36eaebc17"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a8fca41abd240c6c5d41554d36eaebc17">◆ </a></span>mutexLock()</h2>
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<td class="memname">void mutexLock </td>
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<td>(</td>
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<td class="paramname"><em>m</em></td><td>)</td>
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<p>Locks a mutex. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">m</td><td>Mutex object. </td></tr>
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</dl>
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<a id="a70bddc6f3b732a315d4004656988d6bc" name="a70bddc6f3b732a315d4004656988d6bc"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a70bddc6f3b732a315d4004656988d6bc">◆ </a></span>mutexTryLock()</h2>
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<td class="memname">bool mutexTryLock </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="mutex_8h.html#a2d649c880d4330dc891cda67837eb897">Mutex</a> * </td>
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<td class="paramname"><em>m</em></td><td>)</td>
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<p>Attempts to lock a mutex without waiting. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">m</td><td>Mutex object. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>1 if the mutex has been acquired successfully, and 0 on contention. </dd></dl>
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<a id="a502b8f0e525b7c32cdd204a4949a24b3" name="a502b8f0e525b7c32cdd204a4949a24b3"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a502b8f0e525b7c32cdd204a4949a24b3">◆ </a></span>mutexUnlock()</h2>
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<td class="memname">void mutexUnlock </td>
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<td>(</td>
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<td class="paramname"><em>m</em></td><td>)</td>
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<p>Unlocks a mutex. </p>
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<tr><td class="paramname">m</td><td>Mutex object. </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#af486c816008970eaf842c56b9a20dd60">◆ </a></span>rmutexInit()</h2>
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<td class="memname">static void rmutexInit </td>
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<td class="paramtype"><a class="el" href="mutex_8h.html#a2f2d4d58b8e3fd8af6e0bf3209fb156c">RMutex</a> * </td>
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<td class="paramname"><em>m</em></td><td>)</td>
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<p>Initializes a recursive mutex. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">m</td><td>Recursive mutex object. </td></tr>
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<dl class="section note"><dt>Note</dt><dd>A recursive mutex can also be statically initialized by assigning {0,0,0} to it. </dd></dl>
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<a id="ab19f58528e1ab9616bc5a59266a0ed20" name="ab19f58528e1ab9616bc5a59266a0ed20"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ab19f58528e1ab9616bc5a59266a0ed20">◆ </a></span>rmutexLock()</h2>
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<td class="memname">void rmutexLock </td>
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<td class="paramtype"><a class="el" href="mutex_8h.html#a2f2d4d58b8e3fd8af6e0bf3209fb156c">RMutex</a> * </td>
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<td class="paramname"><em>m</em></td><td>)</td>
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<p>Locks a recursive mutex. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">m</td><td>Recursive mutex object. </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#a68584b2a443d389834e492eaf54e4b2f">◆ </a></span>rmutexTryLock()</h2>
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<td class="memname">bool rmutexTryLock </td>
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<td class="paramtype"><a class="el" href="mutex_8h.html#a2f2d4d58b8e3fd8af6e0bf3209fb156c">RMutex</a> * </td>
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<td class="paramname"><em>m</em></td><td>)</td>
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<p>Attempts to lock a recursive mutex without waiting. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">m</td><td>Recursive mutex object. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>1 if the mutex has been acquired successfully, and 0 on contention. </dd></dl>
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<a id="a96a01191d7aa5c3d6444e0467a96bdb1" name="a96a01191d7aa5c3d6444e0467a96bdb1"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a96a01191d7aa5c3d6444e0467a96bdb1">◆ </a></span>rmutexUnlock()</h2>
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<td class="memname">void rmutexUnlock </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="mutex_8h.html#a2f2d4d58b8e3fd8af6e0bf3209fb156c">RMutex</a> * </td>
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<td class="paramname"><em>m</em></td><td>)</td>
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<p>Unlocks a recursive mutex. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">m</td><td>Recursive mutex object. </td></tr>
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</dd>
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