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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>inotify-cxx: InotifyWatch Class Reference</title>
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<h1>InotifyWatch Class Reference</h1><!-- doxytag: class="InotifyWatch" -->inotify watch class
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="inotify-cxx_8h_source.html">inotify-cxx.h</a>></code>
<p>
<div class="dynheader">
Collaboration diagram for InotifyWatch:</div>
<div class="dynsection">
<p><center><img src="classInotifyWatch__coll__graph.png" border="0" usemap="#InotifyWatch__coll__map" alt="Collaboration graph"></center>
<map name="InotifyWatch__coll__map">
<area shape="rect" href="classInotify.html" title="inotify class" alt="" coords="24,5,80,32"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>
<p>
<a href="classInotifyWatch-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#c9c02f1dbd143eebd711eba03ac366e9">InotifyWatch</a> (const std::string &rPath, int32_t uMask, bool fEnabled=true)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <a href="#c9c02f1dbd143eebd711eba03ac366e9"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#871c16b01aa8841b36246e5b629ecaef">~InotifyWatch</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <a href="#871c16b01aa8841b36246e5b629ecaef"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#855f982421402dd63d064dde328f2a59">GetDescriptor</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the watch descriptor. <a href="#855f982421402dd63d064dde328f2a59"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const std::string & </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#2e659c699e7d43bd0a218fe4905784d2">GetPath</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the watched file path. <a href="#2e659c699e7d43bd0a218fe4905784d2"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#f759f9baca6f4abbbaae57e076486009">GetMask</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the watch event mask. <a href="#f759f9baca6f4abbbaae57e076486009"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#3ad7fbc55c21b3fcd08c2d1d388e14b6">SetMask</a> (uint32_t uMask) throw (InotifyException)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the watch event mask. <a href="#3ad7fbc55c21b3fcd08c2d1d388e14b6"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classInotify.html">Inotify</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#cbf0042d06841f9503405b104e4c35d0">GetInotify</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the appropriate inotify class instance. <a href="#cbf0042d06841f9503405b104e4c35d0"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#a71aff8650fadff32a3c655ca50945f1">SetEnabled</a> (bool fEnabled) throw (InotifyException)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Enables/disables the watch. <a href="#a71aff8650fadff32a3c655ca50945f1"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#5ab551a912e5acff6a9c74baaf9ea324">IsEnabled</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Checks whether the watch is enabled. <a href="#5ab551a912e5acff6a9c74baaf9ea324"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#222c911ef0e8d6f61570489ed6042e55">IsRecursive</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Checks whether the watch is recursive. <a href="#222c911ef0e8d6f61570489ed6042e55"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Private Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">IN_LOCK_DECL void </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#804cdc1e9579a075a60c239b202559f4">__Disable</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Disables the watch (due to removing by the kernel). <a href="#804cdc1e9579a075a60c239b202559f4"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Private Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#a63ba30ffdb8b9db27970bb1099e4db5">m_path</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">watched file path <a href="#a63ba30ffdb8b9db27970bb1099e4db5"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#f725ea61e3252adae6153ecb80de23a8">m_uMask</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">event mask <a href="#f725ea61e3252adae6153ecb80de23a8"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#90a78898dc850b238e713e0db284fb0a">m_wd</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">watch descriptor <a href="#90a78898dc850b238e713e0db284fb0a"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classInotify.html">Inotify</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#ea695aa11f6105184df1ef265be3f1b9">m_pInotify</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">inotify object <a href="#ea695aa11f6105184df1ef265be3f1b9"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#b0c23c89cc2996bdf6f41b8ef1f1ed18">m_fEnabled</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">events enabled yes/no <a href="#b0c23c89cc2996bdf6f41b8ef1f1ed18"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Friends</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classInotifyWatch.html#94bfb861dc18ca5d16abfcff90db8c86">Inotify</a></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
inotify watch class
<p>
It holds information about the inotify watch on a particular inode.<p>
If the INOTIFY_THREAD_SAFE is defined this class is thread-safe. <hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="c9c02f1dbd143eebd711eba03ac366e9"></a><!-- doxytag: member="InotifyWatch::InotifyWatch" ref="c9c02f1dbd143eebd711eba03ac366e9" args="(const std::string &rPath, int32_t uMask, bool fEnabled=true)" -->
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<td class="memname">InotifyWatch::InotifyWatch </td>
<td>(</td>
<td class="paramtype">const std::string & </td>
<td class="paramname"> <em>rPath</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int32_t </td>
<td class="paramname"> <em>uMask</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>fEnabled</em> = <code>true</code></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Constructor.
<p>
Creates an inotify watch. Because this watch is inactive it has an invalid descriptor (-1).<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><tt>[in]</tt> </td><td valign="top"><em>rPath</em> </td><td>watched file path </td></tr>
<tr><td valign="top"><tt>[in]</tt> </td><td valign="top"><em>uMask</em> </td><td>mask for events </td></tr>
<tr><td valign="top"><tt>[in]</tt> </td><td valign="top"><em>fEnabled</em> </td><td>events enabled yes/no </td></tr>
</table>
</dl>
</div>
</div><p>
<a class="anchor" name="871c16b01aa8841b36246e5b629ecaef"></a><!-- doxytag: member="InotifyWatch::~InotifyWatch" ref="871c16b01aa8841b36246e5b629ecaef" args="()" -->
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<td class="memname">InotifyWatch::~InotifyWatch </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Destructor.
<p>
</div>
</div><p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="804cdc1e9579a075a60c239b202559f4"></a><!-- doxytag: member="InotifyWatch::__Disable" ref="804cdc1e9579a075a60c239b202559f4" args="()" -->
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<td class="memname">void InotifyWatch::__Disable </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [private]</code></td>
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</div>
<div class="memdoc">
<p>
Disables the watch (due to removing by the kernel).
<p>
This method must be called after receiving an event. It ensures the watch object is consistent with the kernel data.
<p>
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<a class="anchor" name="855f982421402dd63d064dde328f2a59"></a><!-- doxytag: member="InotifyWatch::GetDescriptor" ref="855f982421402dd63d064dde328f2a59" args="() const " -->
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<td class="memname">int32_t InotifyWatch::GetDescriptor </td>
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<td> const<code> [inline]</code></td>
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<p>
Returns the watch descriptor.
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>watch descriptor; -1 for inactive watch </dd></dl>
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<a class="anchor" name="cbf0042d06841f9503405b104e4c35d0"></a><!-- doxytag: member="InotifyWatch::GetInotify" ref="cbf0042d06841f9503405b104e4c35d0" args="()" -->
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<td class="memname"><a class="el" href="classInotify.html">Inotify</a>* InotifyWatch::GetInotify </td>
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<td><code> [inline]</code></td>
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<p>
Returns the appropriate inotify class instance.
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>inotify instance </dd></dl>
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<a class="anchor" name="f759f9baca6f4abbbaae57e076486009"></a><!-- doxytag: member="InotifyWatch::GetMask" ref="f759f9baca6f4abbbaae57e076486009" args="() const " -->
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<td class="memname">uint32_t InotifyWatch::GetMask </td>
<td>(</td>
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<td> const<code> [inline]</code></td>
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<p>
Returns the watch event mask.
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>event mask </dd></dl>
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<a class="anchor" name="2e659c699e7d43bd0a218fe4905784d2"></a><!-- doxytag: member="InotifyWatch::GetPath" ref="2e659c699e7d43bd0a218fe4905784d2" args="() const " -->
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<td> const<code> [inline]</code></td>
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Returns the watched file path.
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>file path </dd></dl>
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<a class="anchor" name="5ab551a912e5acff6a9c74baaf9ea324"></a><!-- doxytag: member="InotifyWatch::IsEnabled" ref="5ab551a912e5acff6a9c74baaf9ea324" args="() const " -->
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<td class="memname">bool InotifyWatch::IsEnabled </td>
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Checks whether the watch is enabled.
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>true = enables, false = disabled </dd></dl>
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<a class="anchor" name="222c911ef0e8d6f61570489ed6042e55"></a><!-- doxytag: member="InotifyWatch::IsRecursive" ref="222c911ef0e8d6f61570489ed6042e55" args="() const " -->
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<td class="memname">bool InotifyWatch::IsRecursive </td>
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Checks whether the watch is recursive.
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A recursive watch monitors a directory itself and all its subdirectories. This watch is a logical object which may have many underlying kernel watches.<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>currently always false (recursive watches not yet supported) </dd></dl>
<dl class="attention" compact><dt><b>Attention:</b></dt><dd>Recursive watches are currently NOT supported. They are planned for future versions. </dd></dl>
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<a class="anchor" name="a71aff8650fadff32a3c655ca50945f1"></a><!-- doxytag: member="InotifyWatch::SetEnabled" ref="a71aff8650fadff32a3c655ca50945f1" args="(bool fEnabled)" -->
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<td class="memname">void InotifyWatch::SetEnabled </td>
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Enables/disables the watch.
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If the watch is active (added to an instance of <a class="el" href="classInotify.html" title="inotify class">Inotify</a>) this method may fail due to unsuccessful re-setting the watch in the kernel.<p>
Re-setting the current state has no effect.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td valign="top"><tt>[in]</tt> </td><td valign="top"><em>fEnabled</em> </td><td>set enabled yes/no</td></tr>
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<dl compact><dt><b>Exceptions:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em><a class="el" href="classInotifyException.html" title="Class for inotify exceptions.">InotifyException</a></em> </td><td>thrown if enabling/disabling fails </td></tr>
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<a class="anchor" name="3ad7fbc55c21b3fcd08c2d1d388e14b6"></a><!-- doxytag: member="InotifyWatch::SetMask" ref="3ad7fbc55c21b3fcd08c2d1d388e14b6" args="(uint32_t uMask)" -->
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Sets the watch event mask.
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If the watch is active (added to an instance of <a class="el" href="classInotify.html" title="inotify class">Inotify</a>) this method may fail due to unsuccessful re-setting the watch in the kernel.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td valign="top"><tt>[in]</tt> </td><td valign="top"><em>uMask</em> </td><td>event mask</td></tr>
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<dl compact><dt><b>Exceptions:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em><a class="el" href="classInotifyException.html" title="Class for inotify exceptions.">InotifyException</a></em> </td><td>thrown if changing fails </td></tr>
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<hr><h2>Friends And Related Function Documentation</h2>
<a class="anchor" name="94bfb861dc18ca5d16abfcff90db8c86"></a><!-- doxytag: member="InotifyWatch::Inotify" ref="94bfb861dc18ca5d16abfcff90db8c86" args="" -->
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<td class="memname">friend class <a class="el" href="classInotify.html">Inotify</a><code> [friend]</code> </td>
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<p>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="b0c23c89cc2996bdf6f41b8ef1f1ed18"></a><!-- doxytag: member="InotifyWatch::m_fEnabled" ref="b0c23c89cc2996bdf6f41b8ef1f1ed18" args="" -->
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<td class="memname">bool <a class="el" href="classInotifyWatch.html#b0c23c89cc2996bdf6f41b8ef1f1ed18">InotifyWatch::m_fEnabled</a><code> [private]</code> </td>
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events enabled yes/no
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<a class="anchor" name="a63ba30ffdb8b9db27970bb1099e4db5"></a><!-- doxytag: member="InotifyWatch::m_path" ref="a63ba30ffdb8b9db27970bb1099e4db5" args="" -->
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<td class="memname">std::string <a class="el" href="classInotifyWatch.html#a63ba30ffdb8b9db27970bb1099e4db5">InotifyWatch::m_path</a><code> [private]</code> </td>
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watched file path
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<a class="anchor" name="ea695aa11f6105184df1ef265be3f1b9"></a><!-- doxytag: member="InotifyWatch::m_pInotify" ref="ea695aa11f6105184df1ef265be3f1b9" args="" -->
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<td class="memname"><a class="el" href="classInotify.html">Inotify</a>* <a class="el" href="classInotifyWatch.html#ea695aa11f6105184df1ef265be3f1b9">InotifyWatch::m_pInotify</a><code> [private]</code> </td>
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<p>
inotify object
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<a class="anchor" name="f725ea61e3252adae6153ecb80de23a8"></a><!-- doxytag: member="InotifyWatch::m_uMask" ref="f725ea61e3252adae6153ecb80de23a8" args="" -->
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<td class="memname">uint32_t <a class="el" href="classInotifyWatch.html#f725ea61e3252adae6153ecb80de23a8">InotifyWatch::m_uMask</a><code> [private]</code> </td>
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event mask
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<a class="anchor" name="90a78898dc850b238e713e0db284fb0a"></a><!-- doxytag: member="InotifyWatch::m_wd" ref="90a78898dc850b238e713e0db284fb0a" args="" -->
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<td class="memname">int32_t <a class="el" href="classInotifyWatch.html#90a78898dc850b238e713e0db284fb0a">InotifyWatch::m_wd</a><code> [private]</code> </td>
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<p>
watch descriptor
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<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="inotify-cxx_8h_source.html">inotify-cxx.h</a><li><a class="el" href="inotify-cxx_8cpp.html">inotify-cxx.cpp</a></ul>
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