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<a class="el" href="namespaceKIO.html">KIO</a>::<a class="el" href="classKIO_1_1Connection.html">Connection</a></div>
<h1>KIO::Connection Class Reference</h1><!-- doxytag: class="KIO::Connection" --><!-- doxytag: inherits="QObject" --><code>#include <<a class="el" href="connection_8h-source.html">connection.h</a>></code>
<p>
<p>Inheritance diagram for KIO::Connection:
<p><center><img src="classKIO_1_1Connection.png" usemap="#KIO::Connection_map" border="0" alt=""></center>
<map name="KIO::Connection_map">
<area doxygen="qt.tag:" href="qobject.html" alt="QObject" shape="rect" coords="0,0,103,24">
</map>
<a href="classKIO_1_1Connection-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
This class provides a simple means for IPC between two applications via a pipe.
<p>
It handles a queue of commands to be sent which makes it possible to queue data before an actual connection has been established.
<p>
<p>
Definition at line <a class="el" href="connection_8h-source.html#l00049">49</a> of file <a class="el" href="connection_8h-source.html">connection.h</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="classKIO_1_1Connection.html#a0">Connection</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a1"></a><!-- doxytag: member="KIO::Connection::~Connection" ref="a1" args="()" -->
virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a1">~Connection</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a2">init</a> (KSocket *sock)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a3">init</a> (int fd_in, int fd_out)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a4"></a><!-- doxytag: member="KIO::Connection::connect" ref="a4" args="(QObject *receiver=0, const char *member=0)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a4">connect</a> (<a class="elRef" doxygen="qt.tag:" href="qobject.html">QObject</a> *receiver=0, const char *member=0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a5">close</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a6">fd_from</a> () const </td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a7">fd_to</a> () const </td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a8">inited</a> () const </td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a9">send</a> (int cmd, const <a class="elRef" doxygen="qt.tag:" href="qbytearray.html">QByteArray</a> &arr=<a class="elRef" doxygen="qt.tag:" href="qbytearray.html">QByteArray</a>())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a10">sendnow</a> (int _cmd, const <a class="elRef" doxygen="qt.tag:" href="qbytearray.html">QByteArray</a> &data)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a11">read</a> (int *_cmd, <a class="elRef" doxygen="qt.tag:" href="qbytearray.html">QByteArray</a> &data)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a12">suspend</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a13">resume</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#a14">suspended</a> () const </td></tr>
<tr><td colspan="2"><br><h2>Protected Slots</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="j0"></a><!-- doxytag: member="KIO::Connection::dequeue" ref="j0" args="()" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKIO_1_1Connection.html#j0">dequeue</a> ()</td></tr>
</table>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="a0"></a><!-- doxytag: member="KIO::Connection::Connection" ref="a0" args="()" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
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<td class="mdRow">
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<td class="md" nowrap valign="top">Connection::Connection </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
Creates a new connection.
<p>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="classKIO_1_1Connection.html#a2">init()</a></dd></dl>
<p>
Definition at line <a class="el" href="connection_8cpp-source.html#l00048">48</a> of file <a class="el" href="connection_8cpp-source.html">connection.cpp</a>. </td>
</tr>
</table>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="a5"></a><!-- doxytag: member="KIO::Connection::close" ref="a5" args="()" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
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<td class="md" nowrap valign="top">void Connection::close </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
Closes the connection.
<p>
<p>
Definition at line <a class="el" href="connection_8cpp-source.html#l00079">79</a> of file <a class="el" href="connection_8cpp-source.html">connection.cpp</a>. </td>
</tr>
</table>
<a class="anchor" name="a6"></a><!-- doxytag: member="KIO::Connection::fd_from" ref="a6" args="() const " --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
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<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
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<td class="md" nowrap valign="top">int KIO::Connection::fd_from </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [inline]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
Returns the input file descriptor.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>the input file descriptor</dd></dl>
<p>
Definition at line <a class="el" href="connection_8h-source.html#l00082">82</a> of file <a class="el" href="connection_8h-source.html">connection.h</a>. </td>
</tr>
</table>
<a class="anchor" name="a7"></a><!-- doxytag: member="KIO::Connection::fd_to" ref="a7" args="() const " --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
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<td class="md" nowrap valign="top">int KIO::Connection::fd_to </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [inline]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
Returns the output file descriptor.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>the output file descriptor</dd></dl>
<p>
Definition at line <a class="el" href="connection_8h-source.html#l00087">87</a> of file <a class="el" href="connection_8h-source.html">connection.h</a>. </td>
</tr>
</table>
<a class="anchor" name="a3"></a><!-- doxytag: member="KIO::Connection::init" ref="a3" args="(int fd_in, int fd_out)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">void Connection::init </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">int </td>
<td class="mdname" nowrap> <em>fd_in</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap>int </td>
<td class="mdname" nowrap> <em>fd_out</em></td>
</tr>
<tr>
<td class="md"></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
Initialize the connection to use the given file descriptors.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>fd_in</em> </td><td>the input file descriptor to use </td></tr>
<tr><td valign="top"></td><td valign="top"><em>fd_out</em> </td><td>the output file descriptor to use </td></tr>
</table>
</dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="classKIO_1_1Connection.html#a8">inited()</a></dd></dl>
<p>
Definition at line <a class="el" href="connection_8cpp-source.html#l00144">144</a> of file <a class="el" href="connection_8cpp-source.html">connection.cpp</a>. </td>
</tr>
</table>
<a class="anchor" name="a2"></a><!-- doxytag: member="KIO::Connection::init" ref="a2" args="(KSocket *sock)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">void Connection::init </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">KSocket * </td>
<td class="mdname1" valign="top" nowrap> <em>sock</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
Initialize this connection to use the given socket.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>sock</em> </td><td>the socket to use </td></tr>
</table>
</dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="classKIO_1_1Connection.html#a8">inited()</a></dd></dl>
<p>
Definition at line <a class="el" href="connection_8cpp-source.html#l00124">124</a> of file <a class="el" href="connection_8cpp-source.html">connection.cpp</a>. </td>
</tr>
</table>
<a class="anchor" name="a8"></a><!-- doxytag: member="KIO::Connection::inited" ref="a8" args="() const " --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">bool KIO::Connection::inited </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [inline]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
Checks whether the connection has been initialized.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>true if the initialized </dd></dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="classKIO_1_1Connection.html#a2">init()</a></dd></dl>
<p>
Definition at line <a class="el" href="connection_8h-source.html#l00094">94</a> of file <a class="el" href="connection_8h-source.html">connection.h</a>. </td>
</tr>
</table>
<a class="anchor" name="a11"></a><!-- doxytag: member="KIO::Connection::read" ref="a11" args="(int *_cmd, QByteArray &data)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">int Connection::read </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">int * </td>
<td class="mdname" nowrap> <em>_cmd</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap><a class="elRef" doxygen="qt.tag:" href="qbytearray.html">QByteArray</a> & </td>
<td class="mdname" nowrap> <em>data</em></td>
</tr>
<tr>
<td class="md"></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
Receive data.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>_cmd</em> </td><td>the received command will be written here </td></tr>
<tr><td valign="top"></td><td valign="top"><em>data</em> </td><td>the received data will be written here </td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>>=0 indicates the received data size upon success -1 indicates error</dd></dl>
<p>
Definition at line <a class="el" href="connection_8cpp-source.html#l00209">209</a> of file <a class="el" href="connection_8cpp-source.html">connection.cpp</a>. </td>
</tr>
</table>
<a class="anchor" name="a13"></a><!-- doxytag: member="KIO::Connection::resume" ref="a13" args="()" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">void Connection::resume </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
Resume handling of incoming data.
<p>
<p>
Definition at line <a class="el" href="connection_8cpp-source.html#l00072">72</a> of file <a class="el" href="connection_8cpp-source.html">connection.cpp</a>. </td>
</tr>
</table>
<a class="anchor" name="a9"></a><!-- doxytag: member="KIO::Connection::send" ref="a9" args="(int cmd, const QByteArray &arr=QByteArray())" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
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<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top">void Connection::send </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">int </td>
<td class="mdname" nowrap> <em>cmd</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap>const <a class="elRef" doxygen="qt.tag:" href="qbytearray.html">QByteArray</a> & </td>
<td class="mdname" nowrap> <em>arr</em> = <code><a class="elRef" doxygen="qt.tag:" href="qbytearray.html">QByteArray</a>()</code></td>
</tr>
<tr>
<td class="md"></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
Sends/queues the given command to be sent.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>cmd</em> </td><td>the command to set </td></tr>
<tr><td valign="top"></td><td valign="top"><em>arr</em> </td><td>the bytes to send</td></tr>
</table>
</dl>
<p>
Definition at line <a class="el" href="connection_8cpp-source.html#l00098">98</a> of file <a class="el" href="connection_8cpp-source.html">connection.cpp</a>. </td>
</tr>
</table>
<a class="anchor" name="a10"></a><!-- doxytag: member="KIO::Connection::sendnow" ref="a10" args="(int _cmd, const QByteArray &data)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
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<table cellpadding="0" cellspacing="0" border="0">
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<td class="md" nowrap valign="top">bool Connection::sendnow </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">int </td>
<td class="mdname" nowrap> <em>_cmd</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td class="md"></td>
<td class="md" nowrap>const <a class="elRef" doxygen="qt.tag:" href="qbytearray.html">QByteArray</a> & </td>
<td class="mdname" nowrap> <em>data</em></td>
</tr>
<tr>
<td class="md"></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
</td>
<td>
<p>
Sends the given command immediately.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>_cmd</em> </td><td>the command to set </td></tr>
<tr><td valign="top"></td><td valign="top"><em>data</em> </td><td>the bytes to send </td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>true if successful, false otherwise</dd></dl>
<p>
Definition at line <a class="el" href="connection_8cpp-source.html#l00175">175</a> of file <a class="el" href="connection_8cpp-source.html">connection.cpp</a>. </td>
</tr>
</table>
<a class="anchor" name="a12"></a><!-- doxytag: member="KIO::Connection::suspend" ref="a12" args="()" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top">void Connection::suspend </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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<p>
Don't handle incoming data until resumed.
<p>
<p>
Definition at line <a class="el" href="connection_8cpp-source.html#l00065">65</a> of file <a class="el" href="connection_8cpp-source.html">connection.cpp</a>. </td>
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<a class="anchor" name="a14"></a><!-- doxytag: member="KIO::Connection::suspended" ref="a14" args="() const " --><p>
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<td class="md" nowrap valign="top">bool KIO::Connection::suspended </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [inline]</code></td>
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<p>
Returns status of connection.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>true if suspended, false otherwise</dd></dl>
<p>
Definition at line <a class="el" href="connection_8h-source.html#l00135">135</a> of file <a class="el" href="connection_8h-source.html">connection.h</a>. </td>
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<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="connection_8h-source.html">connection.h</a><li><a class="el" href="connection_8cpp-source.html">connection.cpp</a></ul>
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