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<title>GMimeStreamMmap: GMime 2.6 Reference Manual</title>
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<a href="#gmime-GMimeStreamMmap.description" class="shortcut">Description</a></span>
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<a name="gmime-GMimeStreamMmap"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="gmime-GMimeStreamMmap.top_of_page"></a>GMimeStreamMmap</span></h2>
<p>GMimeStreamMmap — A memory-mapped file stream</p>
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<div class="refsect1">
<a name="gmime-GMimeStreamMmap.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="gmime-GMimeStream.html#GMimeStream" title="struct GMimeStream"><span class="returnvalue">GMimeStream</span></a> *
</td>
<td class="function_name">
<a class="link" href="gmime-GMimeStreamMmap.html#g-mime-stream-mmap-new" title="g_mime_stream_mmap_new ()">g_mime_stream_mmap_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gmime-GMimeStream.html#GMimeStream" title="struct GMimeStream"><span class="returnvalue">GMimeStream</span></a> *
</td>
<td class="function_name">
<a class="link" href="gmime-GMimeStreamMmap.html#g-mime-stream-mmap-new-with-bounds" title="g_mime_stream_mmap_new_with_bounds ()">g_mime_stream_mmap_new_with_bounds</a> <span class="c_punctuation">()</span>
</td>
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</table></div>
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<div class="refsect1">
<a name="gmime-GMimeStreamMmap.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody><tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="gmime-GMimeStreamMmap.html#GMimeStreamMmap" title="struct GMimeStreamMmap">GMimeStreamMmap</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gmime-GMimeStreamMmap.description"></a><h2>Description</h2>
<p>A <a class="link" href="gmime-GMimeStream.html#GMimeStream" title="struct GMimeStream"><span class="type">GMimeStream</span></a> implementation using a memory-mapped file backing
store. This may be faster than <a class="link" href="gmime-GMimeStreamFs.html#GMimeStreamFs" title="struct GMimeStreamFs"><span class="type">GMimeStreamFs</span></a> or <a class="link" href="gmime-GMimeStreamFile.html#GMimeStreamFile" title="struct GMimeStreamFile"><span class="type">GMimeStreamFile</span></a>
but you'll have to do your own performance checking to be sure for
your particular application/platform.</p>
</div>
<div class="refsect1">
<a name="gmime-GMimeStreamMmap.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="g-mime-stream-mmap-new"></a><h3>g_mime_stream_mmap_new ()</h3>
<pre class="programlisting"><a class="link" href="gmime-GMimeStream.html#GMimeStream" title="struct GMimeStream"><span class="returnvalue">GMimeStream</span></a> *
g_mime_stream_mmap_new (<em class="parameter"><code><span class="type">int</span> fd</code></em>,
<em class="parameter"><code><span class="type">int</span> prot</code></em>,
<em class="parameter"><code><span class="type">int</span> flags</code></em>);</pre>
<p>Creates a new <a class="link" href="gmime-GMimeStreamMmap.html#GMimeStreamMmap" title="struct GMimeStreamMmap"><span class="type">GMimeStreamMmap</span></a> object around <em class="parameter"><code>fd</code></em>
.</p>
<div class="refsect3">
<a name="g-mime-stream-mmap-new.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>fd</p></td>
<td class="parameter_description"><p>file descriptor</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>prot</p></td>
<td class="parameter_description"><p>protection flags</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flags</p></td>
<td class="parameter_description"><p>map flags</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="g-mime-stream-mmap-new.returns"></a><h4>Returns</h4>
<p> a stream using <em class="parameter"><code>fd</code></em>
.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g-mime-stream-mmap-new-with-bounds"></a><h3>g_mime_stream_mmap_new_with_bounds ()</h3>
<pre class="programlisting"><a class="link" href="gmime-GMimeStream.html#GMimeStream" title="struct GMimeStream"><span class="returnvalue">GMimeStream</span></a> *
g_mime_stream_mmap_new_with_bounds (<em class="parameter"><code><span class="type">int</span> fd</code></em>,
<em class="parameter"><code><span class="type">int</span> prot</code></em>,
<em class="parameter"><code><span class="type">int</span> flags</code></em>,
<em class="parameter"><code><span class="type">gint64</span> start</code></em>,
<em class="parameter"><code><span class="type">gint64</span> end</code></em>);</pre>
<p>Creates a new <a class="link" href="gmime-GMimeStreamMmap.html#GMimeStreamMmap" title="struct GMimeStreamMmap"><span class="type">GMimeStreamMmap</span></a> object around <em class="parameter"><code>fd</code></em>
with bounds <em class="parameter"><code>start</code></em>
and <em class="parameter"><code>end</code></em>
.</p>
<div class="refsect3">
<a name="g-mime-stream-mmap-new-with-bounds.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>fd</p></td>
<td class="parameter_description"><p>file descriptor</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>prot</p></td>
<td class="parameter_description"><p>protection flags</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flags</p></td>
<td class="parameter_description"><p>map flags</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>start</p></td>
<td class="parameter_description"><p>start boundary</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>end</p></td>
<td class="parameter_description"><p>end boundary</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="g-mime-stream-mmap-new-with-bounds.returns"></a><h4>Returns</h4>
<p> a stream using <em class="parameter"><code>fd</code></em>
with bounds <em class="parameter"><code>start</code></em>
and <em class="parameter"><code>end</code></em>
.</p>
</div>
</div>
</div>
<div class="refsect1">
<a name="gmime-GMimeStreamMmap.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GMimeStreamMmap"></a><h3>struct GMimeStreamMmap</h3>
<pre class="programlisting">struct GMimeStreamMmap {
GMimeStream parent_object;
gboolean owner;
gboolean eos;
int fd;
char *map;
size_t maplen;
};
</pre>
<p>A memory-mapped <a class="link" href="gmime-GMimeStream.html#GMimeStream" title="struct GMimeStream"><span class="type">GMimeStream</span></a>.</p>
<div class="refsect3">
<a name="GMimeStreamMmap.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><a class="link" href="gmime-GMimeStream.html#GMimeStream" title="struct GMimeStream"><span class="type">GMimeStream</span></a> <em class="structfield"><code><a name="GMimeStreamMmap.parent-object"></a>parent_object</code></em>;</p></td>
<td class="struct_member_description"><p>parent <a class="link" href="gmime-GMimeStream.html#GMimeStream" title="struct GMimeStream"><span class="type">GMimeStream</span></a></p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gboolean</span> <em class="structfield"><code><a name="GMimeStreamMmap.owner"></a>owner</code></em>;</p></td>
<td class="struct_member_description"><p><code class="literal">TRUE</code> if this stream owns the memory map</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gboolean</span> <em class="structfield"><code><a name="GMimeStreamMmap.eos"></a>eos</code></em>;</p></td>
<td class="struct_member_description"><p><code class="literal">TRUE</code> if end-of-stream</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">int</span> <em class="structfield"><code><a name="GMimeStreamMmap.fd"></a>fd</code></em>;</p></td>
<td class="struct_member_description"><p>file descriptor</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">char</span> *<em class="structfield"><code><a name="GMimeStreamMmap.map"></a>map</code></em>;</p></td>
<td class="struct_member_description"><p>memory map</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">size_t</span> <em class="structfield"><code><a name="GMimeStreamMmap.maplen"></a>maplen</code></em>;</p></td>
<td class="struct_member_description"><p>length of the memory map</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gmime-GMimeStreamMmap.see-also"></a><h2>See Also</h2>
<p><a class="link" href="gmime-GMimeStream.html#GMimeStream" title="struct GMimeStream"><span class="type">GMimeStream</span></a></p>
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