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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Truncating Files: GnomeVFS - Filesystem Abstraction library</title>
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                  <a href="#gnome-vfs-2.0-gnome-vfs-file-trunc-ops.description" class="shortcut">Description</a></span>
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<div class="refentry">
<a name="gnome-vfs-2.0-gnome-vfs-file-trunc-ops"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gnome-vfs-2.0-gnome-vfs-file-trunc-ops.top_of_page"></a>Truncating Files</span></h2>
<p>Truncating Files — Force files to a particular length</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gnome-vfs-2.0-gnome-vfs-file-trunc-ops.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-file-trunc-ops.html#gnome-vfs-truncate" title="gnome_vfs_truncate ()">gnome_vfs_truncate</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-file-trunc-ops.html#gnome-vfs-truncate-uri" title="gnome_vfs_truncate_uri ()">gnome_vfs_truncate_uri</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-vfs-2.0-gnome-vfs-file-trunc-ops.html#gnome-vfs-truncate-handle" title="gnome_vfs_truncate_handle ()">gnome_vfs_truncate_handle</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gnome-vfs-2.0-gnome-vfs-file-trunc-ops.description"></a><h2>Description</h2>
<p>
Truncation of files is used to force them to a particular length.
If a file longer than specified, the trailing bytes are discarded,
if it is shorter than specified it is padded with zeros.
</p>
</div>
<div class="refsect1">
<a name="gnome-vfs-2.0-gnome-vfs-file-trunc-ops.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gnome-vfs-truncate"></a><h3>gnome_vfs_truncate ()</h3>
<pre class="programlisting"><a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
gnome_vfs_truncate (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *text_uri</code></em>,
                    <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-size.html#GnomeVFSFileSize" title="GnomeVFSFileSize"><span class="type">GnomeVFSFileSize</span></a> length</code></em>);</pre>
<p>Truncate the file at <em class="parameter"><code>text_uri</code></em>
 to <em class="parameter"><code>length</code></em>
 bytes.</p>
<div class="refsect3">
<a name="gnome-vfs-truncate.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>text_uri</p></td>
<td class="parameter_description"><p>string representing the file to be truncated.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>length</p></td>
<td class="parameter_description"><p>length of the new file at <em class="parameter"><code>text_uri</code></em>
.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-vfs-truncate.returns"></a><h4>Returns</h4>
<p> an integer representing the result of the operation.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-vfs-truncate-uri"></a><h3>gnome_vfs_truncate_uri ()</h3>
<pre class="programlisting"><a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
gnome_vfs_truncate_uri (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-uri.html#GnomeVFSURI" title="GnomeVFSURI"><span class="type">GnomeVFSURI</span></a> *uri</code></em>,
                        <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-size.html#GnomeVFSFileSize" title="GnomeVFSFileSize"><span class="type">GnomeVFSFileSize</span></a> length</code></em>);</pre>
<p>Truncate the file at <em class="parameter"><code>uri</code></em>
 to be only <em class="parameter"><code>length</code></em>
 bytes. Data past <em class="parameter"><code>length</code></em>

bytes will be discarded.</p>
<div class="refsect3">
<a name="gnome-vfs-truncate-uri.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>uri</p></td>
<td class="parameter_description"><p>uri of the file to be truncated.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>length</p></td>
<td class="parameter_description"><p>length of the new file at <em class="parameter"><code>uri</code></em>
.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-vfs-truncate-uri.returns"></a><h4>Returns</h4>
<p> an integer representing the result of the operation.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-vfs-truncate-handle"></a><h3>gnome_vfs_truncate_handle ()</h3>
<pre class="programlisting"><a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a>
gnome_vfs_truncate_handle (<em class="parameter"><code><span class="type">GnomeVFSHandle</span> *handle</code></em>,
                           <em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-file-size.html#GnomeVFSFileSize" title="GnomeVFSFileSize"><span class="type">GnomeVFSFileSize</span></a> length</code></em>);</pre>
<p>Truncate the file pointed to by <em class="parameter"><code>handle</code></em>
 to be only <em class="parameter"><code>length</code></em>
 bytes. 
Data past <em class="parameter"><code>length</code></em>
 bytes will be discarded.</p>
<div class="refsect3">
<a name="gnome-vfs-truncate-handle.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>handle</p></td>
<td class="parameter_description"><p>a handle to the file to be truncated.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>length</p></td>
<td class="parameter_description"><p>length of the new file the handle is open to.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-vfs-truncate-handle.returns"></a><h4>Returns</h4>
<p> an integer representing the result of the operation.</p>
</div>
</div>
</div>
<div class="refsect1">
<a name="gnome-vfs-2.0-gnome-vfs-file-trunc-ops.other_details"></a><h2>Types and Values</h2>
</div>
</div>
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