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<h1>apr_anylock.h</h1> </div>
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<a href="apr__anylock_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* Licensed to the Apache Software Foundation (ASF) under one or more</span>
<a name="l00002"></a>00002 <span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span>
<a name="l00003"></a>00003 <span class="comment"> * this work for additional information regarding copyright ownership.</span>
<a name="l00004"></a>00004 <span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span>
<a name="l00005"></a>00005 <span class="comment"> * (the "License"); you may not use this file except in compliance with</span>
<a name="l00006"></a>00006 <span class="comment"> * the License. You may obtain a copy of the License at</span>
<a name="l00007"></a>00007 <span class="comment"> *</span>
<a name="l00008"></a>00008 <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span>
<a name="l00011"></a>00011 <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span>
<a name="l00012"></a>00012 <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<a name="l00013"></a>00013 <span class="comment"> * See the License for the specific language governing permissions and</span>
<a name="l00014"></a>00014 <span class="comment"> * limitations under the License.</span>
<a name="l00015"></a>00015 <span class="comment"> */</span>
<a name="l00016"></a>00016 <span class="comment"></span>
<a name="l00017"></a>00017 <span class="comment">/**</span>
<a name="l00018"></a>00018 <span class="comment"> * @file apr_anylock.h</span>
<a name="l00019"></a>00019 <span class="comment"> * @brief APR-Util transparent any lock flavor wrapper</span>
<a name="l00020"></a>00020 <span class="comment"> */</span>
<a name="l00021"></a>00021 <span class="preprocessor">#ifndef APR_ANYLOCK_H</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#define APR_ANYLOCK_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="apr__proc__mutex_8h.html" title="APR Process Locking Routines.">apr_proc_mutex.h</a>"</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "<a class="code" href="apr__thread__mutex_8h.html" title="APR Thread Mutex Routines.">apr_thread_mutex.h</a>"</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include "<a class="code" href="apr__thread__rwlock_8h.html" title="APR Reader/Writer Lock Routines.">apr_thread_rwlock.h</a>"</span>
<a name="l00027"></a>00027 <span class="comment"></span>
<a name="l00028"></a>00028 <span class="comment">/** Structure that may contain any APR lock type */</span>
<a name="l00029"></a><a class="code" href="structapr__anylock__t.html">00029</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structapr__anylock__t.html">apr_anylock_t</a> {<span class="comment"></span>
<a name="l00030"></a>00030 <span class="comment"> /** Indicates what type of lock is in lock */</span>
<a name="l00031"></a>00031 <span class="keyword">enum</span> <a class="code" href="structapr__anylock__t.html#a047e5c4d930f359618a96fd5e857f851">tm_lock</a> {
<a name="l00032"></a>00032 <a class="code" href="structapr__anylock__t.html#a047e5c4d930f359618a96fd5e857f851aa538eef19ecc0576a84344a5191abbd8">apr_anylock_none</a>, <span class="comment">/**< None */</span>
<a name="l00033"></a><a class="code" href="structapr__anylock__t.html#a047e5c4d930f359618a96fd5e857f851">00033</a> <a class="code" href="structapr__anylock__t.html#a047e5c4d930f359618a96fd5e857f851a441c78d4b9f1ed5620a3f7f3195ca9d7">apr_anylock_procmutex</a>, <span class="comment">/**< Process-based */</span>
<a name="l00034"></a><a class="code" href="structapr__anylock__t.html#a047e5c4d930f359618a96fd5e857f851aa538eef19ecc0576a84344a5191abbd8">00034</a> <a class="code" href="structapr__anylock__t.html#a047e5c4d930f359618a96fd5e857f851ad68c4c27cf2b58cabca43d35890045b6">apr_anylock_threadmutex</a>, <span class="comment">/**< Thread-based */</span>
<a name="l00035"></a><a class="code" href="structapr__anylock__t.html#a047e5c4d930f359618a96fd5e857f851a441c78d4b9f1ed5620a3f7f3195ca9d7">00035</a> <a class="code" href="structapr__anylock__t.html#a047e5c4d930f359618a96fd5e857f851a764d57b3fda600d8b891bef6128d02b5">apr_anylock_readlock</a>, <span class="comment">/**< Read lock */</span>
<a name="l00036"></a><a class="code" href="structapr__anylock__t.html#a047e5c4d930f359618a96fd5e857f851ad68c4c27cf2b58cabca43d35890045b6">00036</a> <a class="code" href="structapr__anylock__t.html#a047e5c4d930f359618a96fd5e857f851a865d43ac3a9bb62f942e4e85b0befbda">apr_anylock_writelock</a> <span class="comment">/**< Write lock */</span>
<a name="l00037"></a><a class="code" href="structapr__anylock__t.html#a047e5c4d930f359618a96fd5e857f851a764d57b3fda600d8b891bef6128d02b5">00037</a> } type;<span class="comment"></span>
<a name="l00038"></a><a class="code" href="structapr__anylock__t.html#a047e5c4d930f359618a96fd5e857f851a865d43ac3a9bb62f942e4e85b0befbda">00038</a> <span class="comment"> /** Union of all possible APR locks */</span>
<a name="l00039"></a>00039 <span class="keyword">union </span><a class="code" href="unionapr__anylock__t_1_1apr__anylock__u__t.html">apr_anylock_u_t</a> {
<a name="l00040"></a>00040 <a class="code" href="group__apr__proc__mutex.html#ga0fae3a1ab686cd1f252c6062e4c97bd2">apr_proc_mutex_t</a> *<a class="code" href="unionapr__anylock__t_1_1apr__anylock__u__t.html#aeb1a5d1e7a4e326482983ea956caae42">pm</a>; <span class="comment">/**< Process mutex */</span>
<a name="l00041"></a><a class="code" href="unionapr__anylock__t_1_1apr__anylock__u__t.html">00041</a> <span class="preprocessor">#if APR_HAS_THREADS</span>
<a name="l00042"></a><a class="code" href="unionapr__anylock__t_1_1apr__anylock__u__t.html#aeb1a5d1e7a4e326482983ea956caae42">00042</a> <span class="preprocessor"></span> <a class="code" href="group__apr__thread__mutex.html#ga95712060ba3a192036416e1ccef1db75">apr_thread_mutex_t</a> *<a class="code" href="unionapr__anylock__t_1_1apr__anylock__u__t.html#af08254c9ff8d2152276040037cd8ee53">tm</a>; <span class="comment">/**< Thread mutex */</span>
<a name="l00043"></a>00043 <a class="code" href="group__apr__thread__rwlock.html#gaede9b908e3d9e6a8aed7bd10d0ae0498">apr_thread_rwlock_t</a> *<a class="code" href="unionapr__anylock__t_1_1apr__anylock__u__t.html#a7d876bf9eda2835ba357a25c98b095b2">rw</a>; <span class="comment">/**< Read-write lock */</span>
<a name="l00044"></a><a class="code" href="unionapr__anylock__t_1_1apr__anylock__u__t.html#af08254c9ff8d2152276040037cd8ee53">00044</a> <span class="preprocessor">#endif</span>
<a name="l00045"></a><a class="code" href="unionapr__anylock__t_1_1apr__anylock__u__t.html#a7d876bf9eda2835ba357a25c98b095b2">00045</a> <span class="preprocessor"></span> } lock;
<a name="l00046"></a>00046 } <a class="code" href="apr__anylock_8h.html#a6ecda6cbd4d00b792990249d285bec15">apr_anylock_t</a>;
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="preprocessor">#if APR_HAS_THREADS</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span><span class="comment"></span>
<a name="l00050"></a>00050 <span class="comment">/** Lock an apr_anylock_t structure */</span>
<a name="l00051"></a><a class="code" href="apr__anylock_8h.html#ac43b130fb19a434647c34e1d7040fc49">00051</a> <span class="preprocessor">#define APR_ANYLOCK_LOCK(lck) \</span>
<a name="l00052"></a>00052 <span class="preprocessor"> (((lck)->type == apr_anylock_none) \</span>
<a name="l00053"></a>00053 <span class="preprocessor"> ? APR_SUCCESS \</span>
<a name="l00054"></a>00054 <span class="preprocessor"> : (((lck)->type == apr_anylock_threadmutex) \</span>
<a name="l00055"></a>00055 <span class="preprocessor"> ? apr_thread_mutex_lock((lck)->lock.tm) \</span>
<a name="l00056"></a>00056 <span class="preprocessor"> : (((lck)->type == apr_anylock_procmutex) \</span>
<a name="l00057"></a>00057 <span class="preprocessor"> ? apr_proc_mutex_lock((lck)->lock.pm) \</span>
<a name="l00058"></a>00058 <span class="preprocessor"> : (((lck)->type == apr_anylock_readlock) \</span>
<a name="l00059"></a>00059 <span class="preprocessor"> ? apr_thread_rwlock_rdlock((lck)->lock.rw) \</span>
<a name="l00060"></a>00060 <span class="preprocessor"> : (((lck)->type == apr_anylock_writelock) \</span>
<a name="l00061"></a>00061 <span class="preprocessor"> ? apr_thread_rwlock_wrlock((lck)->lock.rw) \</span>
<a name="l00062"></a>00062 <span class="preprocessor"> : APR_EINVAL)))))</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span>
<a name="l00064"></a>00064 <span class="preprocessor">#else </span><span class="comment">/* APR_HAS_THREADS */</span>
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="preprocessor">#define APR_ANYLOCK_LOCK(lck) \</span>
<a name="l00067"></a>00067 <span class="preprocessor"> (((lck)->type == apr_anylock_none) \</span>
<a name="l00068"></a>00068 <span class="preprocessor"> ? APR_SUCCESS \</span>
<a name="l00069"></a>00069 <span class="preprocessor"> : (((lck)->type == apr_anylock_procmutex) \</span>
<a name="l00070"></a>00070 <span class="preprocessor"> ? apr_proc_mutex_lock((lck)->lock.pm) \</span>
<a name="l00071"></a>00071 <span class="preprocessor"> : APR_EINVAL))</span>
<a name="l00072"></a>00072 <span class="preprocessor"></span>
<a name="l00073"></a>00073 <span class="preprocessor">#endif </span><span class="comment">/* APR_HAS_THREADS */</span>
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="preprocessor">#if APR_HAS_THREADS</span>
<a name="l00076"></a>00076 <span class="preprocessor"></span><span class="comment"></span>
<a name="l00077"></a>00077 <span class="comment">/** Try to lock an apr_anylock_t structure */</span>
<a name="l00078"></a><a class="code" href="apr__anylock_8h.html#afbc6bc9b6cabe0db55e8896fc26053f4">00078</a> <span class="preprocessor">#define APR_ANYLOCK_TRYLOCK(lck) \</span>
<a name="l00079"></a>00079 <span class="preprocessor"> (((lck)->type == apr_anylock_none) \</span>
<a name="l00080"></a>00080 <span class="preprocessor"> ? APR_SUCCESS \</span>
<a name="l00081"></a>00081 <span class="preprocessor"> : (((lck)->type == apr_anylock_threadmutex) \</span>
<a name="l00082"></a>00082 <span class="preprocessor"> ? apr_thread_mutex_trylock((lck)->lock.tm) \</span>
<a name="l00083"></a>00083 <span class="preprocessor"> : (((lck)->type == apr_anylock_procmutex) \</span>
<a name="l00084"></a>00084 <span class="preprocessor"> ? apr_proc_mutex_trylock((lck)->lock.pm) \</span>
<a name="l00085"></a>00085 <span class="preprocessor"> : (((lck)->type == apr_anylock_readlock) \</span>
<a name="l00086"></a>00086 <span class="preprocessor"> ? apr_thread_rwlock_tryrdlock((lck)->lock.rw) \</span>
<a name="l00087"></a>00087 <span class="preprocessor"> : (((lck)->type == apr_anylock_writelock) \</span>
<a name="l00088"></a>00088 <span class="preprocessor"> ? apr_thread_rwlock_trywrlock((lck)->lock.rw) \</span>
<a name="l00089"></a>00089 <span class="preprocessor"> : APR_EINVAL)))))</span>
<a name="l00090"></a>00090 <span class="preprocessor"></span>
<a name="l00091"></a>00091 <span class="preprocessor">#else </span><span class="comment">/* APR_HAS_THREADS */</span>
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="preprocessor">#define APR_ANYLOCK_TRYLOCK(lck) \</span>
<a name="l00094"></a>00094 <span class="preprocessor"> (((lck)->type == apr_anylock_none) \</span>
<a name="l00095"></a>00095 <span class="preprocessor"> ? APR_SUCCESS \</span>
<a name="l00096"></a>00096 <span class="preprocessor"> : (((lck)->type == apr_anylock_procmutex) \</span>
<a name="l00097"></a>00097 <span class="preprocessor"> ? apr_proc_mutex_trylock((lck)->lock.pm) \</span>
<a name="l00098"></a>00098 <span class="preprocessor"> : APR_EINVAL))</span>
<a name="l00099"></a>00099 <span class="preprocessor"></span>
<a name="l00100"></a>00100 <span class="preprocessor">#endif </span><span class="comment">/* APR_HAS_THREADS */</span>
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="preprocessor">#if APR_HAS_THREADS</span>
<a name="l00103"></a>00103 <span class="preprocessor"></span><span class="comment"></span>
<a name="l00104"></a>00104 <span class="comment">/** Unlock an apr_anylock_t structure */</span>
<a name="l00105"></a><a class="code" href="apr__anylock_8h.html#a367f0d4cc5239e95ee925542d4a0b3fb">00105</a> <span class="preprocessor">#define APR_ANYLOCK_UNLOCK(lck) \</span>
<a name="l00106"></a>00106 <span class="preprocessor"> (((lck)->type == apr_anylock_none) \</span>
<a name="l00107"></a>00107 <span class="preprocessor"> ? APR_SUCCESS \</span>
<a name="l00108"></a>00108 <span class="preprocessor"> : (((lck)->type == apr_anylock_threadmutex) \</span>
<a name="l00109"></a>00109 <span class="preprocessor"> ? apr_thread_mutex_unlock((lck)->lock.tm) \</span>
<a name="l00110"></a>00110 <span class="preprocessor"> : (((lck)->type == apr_anylock_procmutex) \</span>
<a name="l00111"></a>00111 <span class="preprocessor"> ? apr_proc_mutex_unlock((lck)->lock.pm) \</span>
<a name="l00112"></a>00112 <span class="preprocessor"> : ((((lck)->type == apr_anylock_readlock) || \</span>
<a name="l00113"></a>00113 <span class="preprocessor"> ((lck)->type == apr_anylock_writelock)) \</span>
<a name="l00114"></a>00114 <span class="preprocessor"> ? apr_thread_rwlock_unlock((lck)->lock.rw) \</span>
<a name="l00115"></a>00115 <span class="preprocessor"> : APR_EINVAL))))</span>
<a name="l00116"></a>00116 <span class="preprocessor"></span>
<a name="l00117"></a>00117 <span class="preprocessor">#else </span><span class="comment">/* APR_HAS_THREADS */</span>
<a name="l00118"></a>00118
<a name="l00119"></a>00119 <span class="preprocessor">#define APR_ANYLOCK_UNLOCK(lck) \</span>
<a name="l00120"></a>00120 <span class="preprocessor"> (((lck)->type == apr_anylock_none) \</span>
<a name="l00121"></a>00121 <span class="preprocessor"> ? APR_SUCCESS \</span>
<a name="l00122"></a>00122 <span class="preprocessor"> : (((lck)->type == apr_anylock_procmutex) \</span>
<a name="l00123"></a>00123 <span class="preprocessor"> ? apr_proc_mutex_unlock((lck)->lock.pm) \</span>
<a name="l00124"></a>00124 <span class="preprocessor"> : APR_EINVAL))</span>
<a name="l00125"></a>00125 <span class="preprocessor"></span>
<a name="l00126"></a>00126 <span class="preprocessor">#endif </span><span class="comment">/* APR_HAS_THREADS */</span>
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="preprocessor">#endif </span><span class="comment">/* !APR_ANYLOCK_H */</span>
</pre></div></div>
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