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<title>Xenomai API: mutex.c</title>
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<h1>mutex.c</h1><div class="fragment"><pre class="fragment"><span class="preprocessor">#include <<a class="code" href="include_2native_2mutex_8h.html" title="This file is part of the Xenomai project.">native/mutex.h</a>></span>
RT_MUTEX mutex_desc;
<span class="keywordtype">int</span> main (<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[])
{
<span class="keywordtype">int</span> err;
<span class="comment">/* Create a mutex; we could also have attempted to bind to some</span>
<span class="comment"> pre-existing object, using rt_mutex_bind() and rt_mutex_bind()</span>
<span class="comment"> instead of creating it. In any case, priority inheritance is</span>
<span class="comment"> automatically enforced for mutual exclusion locks. */</span>
err = <a name="a0"></a><a class="code" href="group__mutex.html#gc89c13a781e4636acf9e66f02d9feb83" title="Create a mutex.">rt_mutex_create</a>(&mutex_desc,<span class="stringliteral">"MyMutex"</span>);
<span class="comment">/* Now, grab the mutex lock, run the critical section, then</span>
<span class="comment"> release the lock: */</span>
<a name="a1"></a><a class="code" href="group__mutex.html#g8a087d5bfeaaf10b6f0a924b272d72c9" title="Acquire a mutex.">rt_mutex_acquire</a>(&mutex_desc,TM_INFINITE);
<span class="comment">/* ... Critical section ... */</span>
<a name="a2"></a><a class="code" href="group__mutex.html#gc87911b7279f55ef2f5f9aefe36ff070" title="Unlock mutex.">rt_mutex_release</a>(&mutex_desc);
<span class="comment">/* ... */</span>
}
<span class="keywordtype">void</span> cleanup (<span class="keywordtype">void</span>)
{
<a name="a3"></a><a class="code" href="group__mutex.html#gd0c2342227f821bd09f580b6a9684179" title="Delete a mutex.">rt_mutex_delete</a>(&mutex_desc);
}
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