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<a name="gnome-vfs-2.0-gnome-vfs-socket"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="gnome-vfs-2.0-gnome-vfs-socket.top_of_page"></a>Unified network I/O</span></h2>
<p>Unified network I/O — Posix style network input/output functions.</p>
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<a name="gnome-vfs-2.0-gnome-vfs-socket.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">typedef <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket">GnomeVFSSocket</a>;
<a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketImpl" title="GnomeVFSSocketImpl">GnomeVFSSocketImpl</a>;
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a> (<a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketReadFunc" title="GnomeVFSSocketReadFunc ()">*GnomeVFSSocketReadFunc</a>) (<em class="parameter"><code><span class="type">gpointer</span> connection</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> buffer</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> bytes</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> *bytes_read_out</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a> (<a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketWriteFunc" title="GnomeVFSSocketWriteFunc ()">*GnomeVFSSocketWriteFunc</a>) (<em class="parameter"><code><span class="type">gpointer</span> connection</code></em>,
<em class="parameter"><code><span class="type">gconstpointer</span> buffer</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> bytes</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> *bytes_written_out</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);
<span class="returnvalue">void</span> (<a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketCloseFunc" title="GnomeVFSSocketCloseFunc ()">*GnomeVFSSocketCloseFunc</a>) (<em class="parameter"><code><span class="type">gpointer</span> connection</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a> (<a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketSetTimeoutFunc" title="GnomeVFSSocketSetTimeoutFunc ()">*GnomeVFSSocketSetTimeoutFunc</a>) (<em class="parameter"><code><span class="type">gpointer</span> connection</code></em>,
<em class="parameter"><code><span class="type">GTimeVal</span> *timeout</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);
<a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="returnvalue">GnomeVFSSocket</span></a> * <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-new" title="gnome_vfs_socket_new ()">gnome_vfs_socket_new</a> (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketImpl" title="GnomeVFSSocketImpl"><span class="type">GnomeVFSSocketImpl</span></a> *impl</code></em>,
<em class="parameter"><code><span class="type">void</span> *connection</code></em>);
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a> <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-write" title="gnome_vfs_socket_write ()">gnome_vfs_socket_write</a> (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a> *socket</code></em>,
<em class="parameter"><code><span class="type">gconstpointer</span> buffer</code></em>,
<em class="parameter"><code><span class="type">int</span> bytes</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> *bytes_written</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a> <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-close" title="gnome_vfs_socket_close ()">gnome_vfs_socket_close</a> (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a> *socket</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a> <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-read" title="gnome_vfs_socket_read ()">gnome_vfs_socket_read</a> (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a> *socket</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> buffer</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> bytes</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> *bytes_read</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);
<span class="returnvalue">void</span> <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-free" title="gnome_vfs_socket_free ()">gnome_vfs_socket_free</a> (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a> *socket</code></em>);
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="returnvalue">GnomeVFSResult</span></a> <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-set-timeout" title="gnome_vfs_socket_set_timeout ()">gnome_vfs_socket_set_timeout</a> (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a> *socket</code></em>,
<em class="parameter"><code><span class="type">GTimeVal</span> *timeout</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="gnome-vfs-2.0-gnome-vfs-socket.description"></a><h2>Description</h2>
<p>
The GnomeVFSSocket function family unifies network I/O through functions
similar to the standard POSIX read/write functions. The main difference is
that all operations are cancellable through the standard GnomeVFS cancellation
mechanism and you can specify a maximum amount of time an operation may take
through <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-set-timeout" title="gnome_vfs_socket_set_timeout ()"><span class="type">gnome_vfs_socket_set_timeout</span></a>.
</p>
</div>
<div class="refsect1">
<a name="gnome-vfs-2.0-gnome-vfs-socket.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GnomeVFSSocket"></a><h3>GnomeVFSSocket</h3>
<pre class="programlisting">typedef struct GnomeVFSSocket GnomeVFSSocket;
</pre>
<p>
An handle to a generic unbuffered socket connection established with
<a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-new" title="gnome_vfs_socket_new ()"><code class="function">gnome_vfs_socket_new()</code></a>.
</p>
<p>
The specifics of the underlying socket implementation are hidden
inside the <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketImpl" title="GnomeVFSSocketImpl"><span class="type">GnomeVFSSocketImpl</span></a> passed on construction.
</p>
<p>
If you need buffered I/O, you will also have to create a
<a class="link" href="gnome-vfs-2.0-gnome-vfs-socket-buffer.html#GnomeVFSSocketBuffer" title="GnomeVFSSocketBuffer"><span class="type">GnomeVFSSocketBuffer</span></a>.
</p>
</div>
<hr>
<div class="refsect2">
<a name="GnomeVFSSocketImpl"></a><h3>GnomeVFSSocketImpl</h3>
<pre class="programlisting">typedef struct {
GnomeVFSSocketReadFunc read;
GnomeVFSSocketWriteFunc write;
GnomeVFSSocketCloseFunc close;
GnomeVFSSocketSetTimeoutFunc set_timeout;
} GnomeVFSSocketImpl;
</pre>
<p>
An implementation of a generic socket (i.e. of <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a>)
encapsulating the details of how socket I/O works.
</p>
<p>
Please refer to <a class="link" href="gnome-vfs-2.0-gnome-vfs-ssl.html#GnomeVFSSSL" title="GnomeVFSSSL"><span class="type">GnomeVFSSSL</span></a> for a sample implementation of this interface.
</p>
<div class="variablelist"><table border="0" class="variablelist">
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<td><p><span class="term"><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketReadFunc" title="GnomeVFSSocketReadFunc ()"><span class="type">GnomeVFSSocketReadFunc</span></a> <em class="structfield"><code><a name="GnomeVFSSocketImpl.read"></a>read</code></em>;</span></p></td>
<td>A <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketReadFunc" title="GnomeVFSSocketReadFunc ()"><span class="type">GnomeVFSSocketReadFunc</span></a> function used for reading from a socket.</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketWriteFunc" title="GnomeVFSSocketWriteFunc ()"><span class="type">GnomeVFSSocketWriteFunc</span></a> <em class="structfield"><code><a name="GnomeVFSSocketImpl.write"></a>write</code></em>;</span></p></td>
<td>A <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketWriteFunc" title="GnomeVFSSocketWriteFunc ()"><span class="type">GnomeVFSSocketWriteFunc</span></a> function used for writing to a socket.</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketCloseFunc" title="GnomeVFSSocketCloseFunc ()"><span class="type">GnomeVFSSocketCloseFunc</span></a> <em class="structfield"><code><a name="GnomeVFSSocketImpl.close"></a>close</code></em>;</span></p></td>
<td>A <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketCloseFunc" title="GnomeVFSSocketCloseFunc ()"><span class="type">GnomeVFSSocketCloseFunc</span></a> function used for closing an open socket.</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketSetTimeoutFunc" title="GnomeVFSSocketSetTimeoutFunc ()"><span class="type">GnomeVFSSocketSetTimeoutFunc</span></a> <em class="structfield"><code><a name="GnomeVFSSocketImpl.set-timeout"></a>set_timeout</code></em>;</span></p></td>
<td>A <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketSetTimeoutFunc" title="GnomeVFSSocketSetTimeoutFunc ()"><span class="type">GnomeVFSSocketSetTimeoutFunc</span></a> function used for setting a socket's timeout.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GnomeVFSSocketReadFunc"></a><h3>GnomeVFSSocketReadFunc ()</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> (*GnomeVFSSocketReadFunc) (<em class="parameter"><code><span class="type">gpointer</span> connection</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> buffer</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> bytes</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> *bytes_read_out</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);</pre>
<p>
This is a generic prototype for a function that reads from a socket.
</p>
<p>
This function is implemented by a <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketImpl" title="GnomeVFSSocketImpl"><span class="type">GnomeVFSSocketImpl</span></a>, and it defines how data
should be written to a buffer using the <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-read" title="gnome_vfs_socket_read ()"><code class="function">gnome_vfs_socket_read()</code></a>
function which hides the socket implementation details.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
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<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>connection</code></em> :</span></p></td>
<td>The socket connection.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>A connection buffer.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>bytes</code></em> :</span></p></td>
<td>The bytes to read.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>bytes_read_out</code></em> :</span></p></td>
<td>The bytes that were read (out).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cancellation</code></em> :</span></p></td>
<td>A cancellation handle that allows clients to cancel the read operation.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>A <a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="type">GnomeVFSResult</span></a> signalling the result of the read operation.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GnomeVFSSocketWriteFunc"></a><h3>GnomeVFSSocketWriteFunc ()</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> (*GnomeVFSSocketWriteFunc) (<em class="parameter"><code><span class="type">gpointer</span> connection</code></em>,
<em class="parameter"><code><span class="type">gconstpointer</span> buffer</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> bytes</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> *bytes_written_out</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);</pre>
<p>
This is a generic prototype for a function that writes to a socket.
</p>
<p>
This function is implemented by a <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketImpl" title="GnomeVFSSocketImpl"><span class="type">GnomeVFSSocketImpl</span></a>, and it defines how data
should be written to a buffer using the <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-write" title="gnome_vfs_socket_write ()"><code class="function">gnome_vfs_socket_write()</code></a>
function which hides the socket implementation details.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>connection</code></em> :</span></p></td>
<td>The socket connection.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>A connection buffer.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>bytes</code></em> :</span></p></td>
<td>The bytes to write.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>bytes_written_out</code></em> :</span></p></td>
<td>The bytes that were written.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cancellation</code></em> :</span></p></td>
<td>A cancellation handle that allows clients to cancel the write operation.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>A <a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="type">GnomeVFSResult</span></a> signalling the result of the write operation.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GnomeVFSSocketCloseFunc"></a><h3>GnomeVFSSocketCloseFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> (*GnomeVFSSocketCloseFunc) (<em class="parameter"><code><span class="type">gpointer</span> connection</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);</pre>
<p>
This is a generic prototype for a function that closes a socket.
</p>
<p>
This function is implemented by a <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketImpl" title="GnomeVFSSocketImpl"><span class="type">GnomeVFSSocketImpl</span></a>, and it defines how an
open socket that was previously opened by <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-new" title="gnome_vfs_socket_new ()"><code class="function">gnome_vfs_socket_new()</code></a>
should be closed using the <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-set-timeout" title="gnome_vfs_socket_set_timeout ()"><code class="function">gnome_vfs_socket_set_timeout()</code></a> function which
hides the socket implementation details.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>cancellation</code></em> :</span></p></td>
<td>A cancellation handle that allows clients to cancel the write operation.</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GnomeVFSSocketSetTimeoutFunc"></a><h3>GnomeVFSSocketSetTimeoutFunc ()</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> (*GnomeVFSSocketSetTimeoutFunc) (<em class="parameter"><code><span class="type">gpointer</span> connection</code></em>,
<em class="parameter"><code><span class="type">GTimeVal</span> *timeout</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);</pre>
<p>
This is a generic prototype for a function that sets a socket timeout.
</p>
<p>
This function is implemented by a <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketImpl" title="GnomeVFSSocketImpl"><span class="type">GnomeVFSSocketImpl</span></a>, and it defines how
a socket timeout should be set using
should be closed by the <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#gnome-vfs-socket-close" title="gnome_vfs_socket_close ()"><code class="function">gnome_vfs_socket_close()</code></a> function which
hides the socket implementation details.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cancellation</code></em> :</span></p></td>
<td>A cancellation handle that allows clients to cancel the write operation.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>A <a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="type">GnomeVFSResult</span></a> signalling the result of the write operation.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-vfs-socket-new"></a><h3>gnome_vfs_socket_new ()</h3>
<pre class="programlisting"><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="returnvalue">GnomeVFSSocket</span></a> * gnome_vfs_socket_new (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketImpl" title="GnomeVFSSocketImpl"><span class="type">GnomeVFSSocketImpl</span></a> *impl</code></em>,
<em class="parameter"><code><span class="type">void</span> *connection</code></em>);</pre>
<p>
Creates a new <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a> using the specific implementation
<em class="parameter"><code>impl</code></em>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>impl</code></em> :</span></p></td>
<td>an implementation of socket, e.g. <a class="link" href="gnome-vfs-2.0-gnome-vfs-ssl.html#GnomeVFSSSL" title="GnomeVFSSSL"><span class="type">GnomeVFSSSL</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>connection</code></em> :</span></p></td>
<td>pointer to a connection object used by <em class="parameter"><code>impl</code></em> to track.
state (the exact nature of <em class="parameter"><code>connection</code></em> varies from implementation to
implementation).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly created socket.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-vfs-socket-write"></a><h3>gnome_vfs_socket_write ()</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_socket_write (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a> *socket</code></em>,
<em class="parameter"><code><span class="type">gconstpointer</span> buffer</code></em>,
<em class="parameter"><code><span class="type">int</span> bytes</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> *bytes_written</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);</pre>
<p>
Write <em class="parameter"><code>bytes</code></em> bytes of data from <em class="parameter"><code>buffer</code></em> to <em class="parameter"><code>socket</code></em>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>socket</code></em> :</span></p></td>
<td>socket to write data to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>data to write to the socket.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>bytes</code></em> :</span></p></td>
<td>number of bytes from <em class="parameter"><code>buffer</code></em> to write to <em class="parameter"><code>socket</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>bytes_written</code></em> :</span></p></td>
<td>pointer to a <a class="link" href="gnome-vfs-2.0-gnome-vfs-file-size.html#GnomeVFSFileSize" title="GnomeVFSFileSize"><span class="type">GnomeVFSFileSize</span></a>, will contain
the number of bytes actually written to the <em class="parameter"><code>socket</code></em> on return.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cancellation</code></em> :</span></p></td>
<td>optional cancellation object.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="type">GnomeVFSResult</span></a> indicating the success of the operation.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-vfs-socket-close"></a><h3>gnome_vfs_socket_close ()</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_socket_close (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a> *socket</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);</pre>
<p>
Close <em class="parameter"><code>socket</code></em>, freeing any resources it may be using.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>socket</code></em> :</span></p></td>
<td>the socket to be closed.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cancellation</code></em> :</span></p></td>
<td>optional cancellation object.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="type">GnomeVFSResult</span></a> indicating the success of the operation.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-vfs-socket-read"></a><h3>gnome_vfs_socket_read ()</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_socket_read (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a> *socket</code></em>,
<em class="parameter"><code><span class="type">gpointer</span> buffer</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> bytes</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> *bytes_read</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);</pre>
<p>
Read <em class="parameter"><code>bytes</code></em> bytes of data from the <em class="parameter"><code>socket</code></em> into <em class="parameter"><code>buffer</code></em>.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>socket</code></em> :</span></p></td>
<td>socket to read data from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>allocated buffer of at least <em class="parameter"><code>bytes</code></em> bytes to be read into.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>bytes</code></em> :</span></p></td>
<td>number of bytes to read from <em class="parameter"><code>socket</code></em> into <em class="parameter"><code>buffer</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>bytes_read</code></em> :</span></p></td>
<td>pointer to a <a class="link" href="gnome-vfs-2.0-gnome-vfs-file-size.html#GnomeVFSFileSize" title="GnomeVFSFileSize"><span class="type">GnomeVFSFileSize</span></a>, will contain
the number of bytes actually read from the socket on return.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cancellation</code></em> :</span></p></td>
<td>optional cancellation object.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="type">GnomeVFSResult</span></a> indicating the success of the operation.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-vfs-socket-free"></a><h3>gnome_vfs_socket_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gnome_vfs_socket_free (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a> *socket</code></em>);</pre>
<p>
Frees the memory allocated for <em class="parameter"><code>socket</code></em>, but does
not call any <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocketImpl" title="GnomeVFSSocketImpl"><span class="type">GnomeVFSSocketImpl</span></a> function.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>socket</code></em> :</span></p></td>
<td>The <a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a> you want to free.</td>
</tr></tbody>
</table></div>
<p class="since">Since 2.8</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-vfs-socket-set-timeout"></a><h3>gnome_vfs_socket_set_timeout ()</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_socket_set_timeout (<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-socket.html#GnomeVFSSocket" title="GnomeVFSSocket"><span class="type">GnomeVFSSocket</span></a> *socket</code></em>,
<em class="parameter"><code><span class="type">GTimeVal</span> *timeout</code></em>,
<em class="parameter"><code><a class="link" href="gnome-vfs-2.0-gnome-vfs-async-ops.html#GnomeVFSCancellation" title="GnomeVFSCancellation"><span class="type">GnomeVFSCancellation</span></a> *cancellation</code></em>);</pre>
<p>
Set a timeout of <em class="parameter"><code>timeout</code></em>. If <em class="parameter"><code>timeout</code></em> is <code class="literal">NULL</code>, following operations
will block indefinitely).
</p>
<p>
Note if you set <em class="parameter"><code>timeout</code></em> to 0 (means tv_sec and tv_usec are both 0)
every following operation will return immediately. (This can be used
for polling.)
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>socket</code></em> :</span></p></td>
<td>socket to set the timeout of.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>timeout</code></em> :</span></p></td>
<td>the timeout.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cancellation</code></em> :</span></p></td>
<td>optional cancellation object.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a class="link" href="gnome-vfs-2.0-gnome-vfs-result.html#GnomeVFSResult" title="enum GnomeVFSResult"><span class="type">GnomeVFSResult</span></a> indicating the success of the operation.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.8</p>
</div>
</div>
</div>
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