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<h1>File Lock Types<br>
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[<a class="el" href="group__apr__file__io.html">File I/O Handling Functions</a>]</small>
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<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__file__lock__types.html#ga0">APR_FLOCK_SHARED</a> 1</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__file__lock__types.html#ga1">APR_FLOCK_EXCLUSIVE</a> 2</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__file__lock__types.html#ga2">APR_FLOCK_TYPEMASK</a> 0x000F</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__file__lock__types.html#ga3">APR_FLOCK_NONBLOCK</a> 0x0010</td></tr>
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<hr><h2>Define Documentation</h2>
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<td class="md" nowrap valign="top">#define APR_FLOCK_EXCLUSIVE 2 </td>
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Exclusive lock. Only one process may hold an exclusive lock at any given time. This is analogous to a "write lock". </td>
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<td class="md" nowrap valign="top">#define APR_FLOCK_NONBLOCK 0x0010 </td>
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do not block while acquiring the file lock </td>
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<td class="md" nowrap valign="top">#define APR_FLOCK_SHARED 1 </td>
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Shared lock. More than one process or thread can hold a shared lock at any given time. Essentially, this is a "read lock", preventing writers from establishing an exclusive lock. </td>
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<td class="md" nowrap valign="top">#define APR_FLOCK_TYPEMASK 0x000F </td>
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mask to extract lock type </td>
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