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<div class="title">kdatagramsocket.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- C++ -*-</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (C) 2003,2004 Thiago Macieira <thiago.macieira@kdemail.net></span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining</span>
<a name="l00006"></a>00006 <span class="comment"> * a copy of this software and associated documentation files (the</span>
<a name="l00007"></a>00007 <span class="comment"> * "Software"), to deal in the Software without restriction, including</span>
<a name="l00008"></a>00008 <span class="comment"> * without limitation the rights to use, copy, modify, merge, publish,</span>
<a name="l00009"></a>00009 <span class="comment"> * distribute, sublicense, and/or sell copies of the Software, and to</span>
<a name="l00010"></a>00010 <span class="comment"> * permit persons to whom the Software is furnished to do so, subject to</span>
<a name="l00011"></a>00011 <span class="comment"> * the following conditions:</span>
<a name="l00012"></a>00012 <span class="comment"> *</span>
<a name="l00013"></a>00013 <span class="comment"> * The above copyright notice and this permission notice shall be included </span>
<a name="l00014"></a>00014 <span class="comment"> * in all copies or substantial portions of the Software.</span>
<a name="l00015"></a>00015 <span class="comment"> *</span>
<a name="l00016"></a>00016 <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,</span>
<a name="l00017"></a>00017 <span class="comment"> * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF</span>
<a name="l00018"></a>00018 <span class="comment"> * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND</span>
<a name="l00019"></a>00019 <span class="comment"> * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE</span>
<a name="l00020"></a>00020 <span class="comment"> * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION</span>
<a name="l00021"></a>00021 <span class="comment"> * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION</span>
<a name="l00022"></a>00022 <span class="comment"> * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.</span>
<a name="l00023"></a>00023 <span class="comment"> */</span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="preprocessor">#include <config.h></span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="preprocessor">#include <sys/types.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <sys/socket.h></span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="preprocessor">#include "ksocketaddress.h"</span>
<a name="l00031"></a>00031 <span class="preprocessor">#include "kresolver.h"</span>
<a name="l00032"></a>00032 <span class="preprocessor">#include "ksocketdevice.h"</span>
<a name="l00033"></a>00033 <span class="preprocessor">#include "kdatagramsocket.h"</span>
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="keyword">using namespace </span>KNetwork;
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="comment">/*</span>
<a name="l00038"></a>00038 <span class="comment"> * TODO:</span>
<a name="l00039"></a>00039 <span class="comment"> *</span>
<a name="l00040"></a>00040 <span class="comment"> * don't use signals and slots to track state changes: use stateChanging</span>
<a name="l00041"></a>00041 <span class="comment"> *</span>
<a name="l00042"></a>00042 <span class="comment"> */</span>
<a name="l00043"></a>00043
<a name="l00044"></a><a class="code" href="classKNetwork_1_1KDatagramSocket.html#a9407f52041b1c8a63e4654283556e001">00044</a> <a class="code" href="classKNetwork_1_1KDatagramSocket.html#a9407f52041b1c8a63e4654283556e001" title="Default constructor.">KDatagramSocket::KDatagramSocket</a>(<a class="codeRef" href="qobject.html">QObject</a>* parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00045"></a>00045 : <a class="code" href="classKNetwork_1_1KClientSocketBase.html" title="Abstract client socket class.">KClientSocketBase</a>(parent, name), d(0L)
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a74bdf78b024fb806161cb7548f96fa46" title="Returns the internal KResolver object used for looking up the peer host name and service.">peerResolver</a>().<a class="code" href="classKNetwork_1_1KResolver.html#a81f3599004c766550d6c9140ff210967" title="Sets the allowed socket families.">setFamily</a>(KResolver::KnownFamily);
<a name="l00048"></a>00048 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a5f6603783be5f0bc396ae77c8815d7fe" title="Returns the internal KResolver object used for looking up the local host name and service...">localResolver</a>().<a class="code" href="classKNetwork_1_1KResolver.html#a81f3599004c766550d6c9140ff210967" title="Sets the allowed socket families.">setFamily</a>(KResolver::KnownFamily);
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a74bdf78b024fb806161cb7548f96fa46" title="Returns the internal KResolver object used for looking up the peer host name and service.">peerResolver</a>().<a class="code" href="classKNetwork_1_1KResolver.html#acf71d9a9b9fb6eebfabceae86ef9d2b6" title="Sets the socket type we want.">setSocketType</a>(SOCK_DGRAM);
<a name="l00051"></a>00051 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a5f6603783be5f0bc396ae77c8815d7fe" title="Returns the internal KResolver object used for looking up the local host name and service...">localResolver</a>().<a class="code" href="classKNetwork_1_1KResolver.html#acf71d9a9b9fb6eebfabceae86ef9d2b6" title="Sets the socket type we want.">setSocketType</a>(SOCK_DGRAM);
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a5f6603783be5f0bc396ae77c8815d7fe" title="Returns the internal KResolver object used for looking up the local host name and service...">localResolver</a>().<a class="code" href="classKNetwork_1_1KResolver.html#acca68d8e9f31df3c727823f143856463" title="Sets the flags.">setFlags</a>(KResolver::Passive);
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="comment">// QObject::connect(localResolver(), SIGNAL(finished(KResolverResults)),</span>
<a name="l00056"></a>00056 <span class="comment">// this, SLOT(lookupFinishedLocal()));</span>
<a name="l00057"></a>00057 <a class="code" href="classKNetwork_1_1KDatagramSocket.html#ab10d492ab40ad858e8233c62001418c7" title=""Connects" this socket to the given address.">QObject::connect</a>(&<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a74bdf78b024fb806161cb7548f96fa46" title="Returns the internal KResolver object used for looking up the peer host name and service.">peerResolver</a>(), SIGNAL(finished(<a class="code" href="classKNetwork_1_1KResolverResults.html" title="Name and service resolution results.">KResolverResults</a>)),
<a name="l00058"></a>00058 <span class="keyword">this</span>, SLOT(lookupFinishedPeer()));
<a name="l00059"></a>00059 <a class="code" href="classKNetwork_1_1KDatagramSocket.html#ab10d492ab40ad858e8233c62001418c7" title=""Connects" this socket to the given address.">QObject::connect</a>(<span class="keyword">this</span>, SIGNAL(<a class="code" href="classKNetwork_1_1KClientSocketBase.html#ac34a223c3f4b57f4ff8ce864b4489804" title="This signal is emitted when the lookup is successfully completed.">hostFound</a>()), <span class="keyword">this</span>, SLOT(lookupFinishedLocal()));
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061
<a name="l00062"></a><a class="code" href="classKNetwork_1_1KDatagramSocket.html#a48d7d0497a67260c9393aedb51975755">00062</a> <a class="code" href="classKNetwork_1_1KDatagramSocket.html#a48d7d0497a67260c9393aedb51975755" title="Destructor.">KDatagramSocket::~KDatagramSocket</a>()
<a name="l00063"></a>00063 {
<a name="l00064"></a>00064 <span class="comment">// KClientSocketBase's destructor closes the socket</span>
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="comment">//delete d;</span>
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068
<a name="l00069"></a><a class="code" href="classKNetwork_1_1KDatagramSocket.html#a96e0a2a81f3475180d79a566d5302c49">00069</a> <span class="keywordtype">bool</span> <a class="code" href="classKNetwork_1_1KDatagramSocket.html#a96e0a2a81f3475180d79a566d5302c49" title="Performs host lookups.">KDatagramSocket::bind</a>(<span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& node, <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& service)
<a name="l00070"></a>00070 {
<a name="l00071"></a>00071 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a6e1581e22f3273a299037a138dbfe8f3" title="Returns the current state for this socket.">state</a>() >= Bound)
<a name="l00072"></a>00072 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a5f6603783be5f0bc396ae77c8815d7fe" title="Returns the internal KResolver object used for looking up the local host name and service...">localResolver</a>().isRunning())
<a name="l00075"></a>00075 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a5f6603783be5f0bc396ae77c8815d7fe" title="Returns the internal KResolver object used for looking up the local host name and service...">localResolver</a>().<a class="code" href="classKNetwork_1_1KResolver.html#a04766724a0966bf6dd995a20d0004d5f" title="Cancels a running request.">cancel</a>(<span class="keyword">false</span>);
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <span class="comment">// no, we must do a host lookup</span>
<a name="l00078"></a>00078 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a5f6603783be5f0bc396ae77c8815d7fe" title="Returns the internal KResolver object used for looking up the local host name and service...">localResolver</a>().<a class="code" href="classKNetwork_1_1KResolver.html#a08c2742f479938ab098ce7fa3003be8e" title="Sets both the host and the service names.">setAddress</a>(node, service);
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="keywordflow">if</span> (!<a class="code" href="classKNetwork_1_1KClientSocketBase.html#aa49263a2079f1ccf7822d2750b600f72" title="Starts the lookup for peer and local hostnames as well as their services.">lookup</a>())
<a name="l00081"></a>00081 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="comment">// see if lookup has finished already</span>
<a name="l00084"></a>00084 <span class="comment">// this also catches blocking mode, since lookup has to finish</span>
<a name="l00085"></a>00085 <span class="comment">// its processing if we're in blocking mode</span>
<a name="l00086"></a>00086 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a6e1581e22f3273a299037a138dbfe8f3" title="Returns the current state for this socket.">state</a>() > HostLookup)
<a name="l00087"></a>00087 <span class="keywordflow">return</span> doBind();
<a name="l00088"></a>00088
<a name="l00089"></a>00089 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00090"></a>00090 }
<a name="l00091"></a>00091
<a name="l00092"></a><a class="code" href="classKNetwork_1_1KDatagramSocket.html#ab10d492ab40ad858e8233c62001418c7">00092</a> <span class="keywordtype">bool</span> <a class="code" href="classKNetwork_1_1KDatagramSocket.html#ab10d492ab40ad858e8233c62001418c7" title=""Connects" this socket to the given address.">KDatagramSocket::connect</a>(<span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& node, <span class="keyword">const</span> <a class="codeRef" href="qstring.html">QString</a>& service)
<a name="l00093"></a>00093 {
<a name="l00094"></a>00094 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a6e1581e22f3273a299037a138dbfe8f3" title="Returns the current state for this socket.">state</a>() >= Connected)
<a name="l00095"></a>00095 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// already connected</span>
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a74bdf78b024fb806161cb7548f96fa46" title="Returns the internal KResolver object used for looking up the peer host name and service.">peerResolver</a>().nodeName() != node ||
<a name="l00098"></a>00098 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a74bdf78b024fb806161cb7548f96fa46" title="Returns the internal KResolver object used for looking up the peer host name and service.">peerResolver</a>().serviceName() != service)
<a name="l00099"></a>00099 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a74bdf78b024fb806161cb7548f96fa46" title="Returns the internal KResolver object used for looking up the peer host name and service.">peerResolver</a>().<a class="code" href="classKNetwork_1_1KResolver.html#a08c2742f479938ab098ce7fa3003be8e" title="Sets both the host and the service names.">setAddress</a>(node, service); <span class="comment">// this resets the resolver's state</span>
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="comment">// KClientSocketBase::lookup only works if the state is Idle or HostLookup</span>
<a name="l00102"></a>00102 <span class="comment">// therefore, we store the old state, call the lookup routine and then set</span>
<a name="l00103"></a>00103 <span class="comment">// it back.</span>
<a name="l00104"></a>00104 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a25cbb03492f7267142a98c091cda2e53" title="Socket states.">SocketState</a> s = <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a6e1581e22f3273a299037a138dbfe8f3" title="Returns the current state for this socket.">state</a>();
<a name="l00105"></a>00105 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a619f2917a33f5eadc411cf816b9f1aca" title="Sets the socket state to state.">setState</a>(s == Connecting ? HostLookup : Idle);
<a name="l00106"></a>00106 <span class="keywordtype">bool</span> ok = <a class="code" href="classKNetwork_1_1KClientSocketBase.html#aa49263a2079f1ccf7822d2750b600f72" title="Starts the lookup for peer and local hostnames as well as their services.">lookup</a>();
<a name="l00107"></a>00107 <span class="keywordflow">if</span> (!ok)
<a name="l00108"></a>00108 {
<a name="l00109"></a>00109 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a619f2917a33f5eadc411cf816b9f1aca" title="Sets the socket state to state.">setState</a>(s); <span class="comment">// go back</span>
<a name="l00110"></a>00110 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="comment">// check if lookup is finished</span>
<a name="l00114"></a>00114 <span class="comment">// if we're in blocking mode, then the lookup has to be finished</span>
<a name="l00115"></a>00115 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a6e1581e22f3273a299037a138dbfe8f3" title="Returns the current state for this socket.">state</a>() == HostLookup)
<a name="l00116"></a>00116 {
<a name="l00117"></a>00117 <span class="comment">// it hasn't finished</span>
<a name="l00118"></a>00118 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a619f2917a33f5eadc411cf816b9f1aca" title="Sets the socket state to state.">setState</a>(Connecting);
<a name="l00119"></a>00119 emit <a class="code" href="classKNetwork_1_1KClientSocketBase.html#af7dabc6de57ec055154bddc881723d55" title="This signal is emitted whenever the socket state changes.">stateChanged</a>(Connecting);
<a name="l00120"></a>00120 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122
<a name="l00123"></a>00123 <span class="comment">// it has to be finished here</span>
<a name="l00124"></a>00124 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a6e1581e22f3273a299037a138dbfe8f3" title="Returns the current state for this socket.">state</a>() != Connected)
<a name="l00125"></a>00125 {
<a name="l00126"></a>00126 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a619f2917a33f5eadc411cf816b9f1aca" title="Sets the socket state to state.">setState</a>(Connecting);
<a name="l00127"></a>00127 emit <a class="code" href="classKNetwork_1_1KClientSocketBase.html#af7dabc6de57ec055154bddc881723d55" title="This signal is emitted whenever the socket state changes.">stateChanged</a>(Connecting);
<a name="l00128"></a>00128 lookupFinishedPeer();
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130
<a name="l00131"></a>00131 <span class="keywordflow">return</span> <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a6e1581e22f3273a299037a138dbfe8f3" title="Returns the current state for this socket.">state</a>() == Connected;
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133
<a name="l00134"></a><a class="code" href="classKNetwork_1_1KDatagramSocket.html#af086b54c2d84e1a1d2649fc5f46cdc59">00134</a> <a class="code" href="classKNetwork_1_1KDatagramPacket.html" title="one datagram">KDatagramPacket</a> <a class="code" href="classKNetwork_1_1KDatagramSocket.html#af086b54c2d84e1a1d2649fc5f46cdc59" title="Receives one datagram from the stream.">KDatagramSocket::receive</a>()
<a name="l00135"></a>00135 {
<a name="l00136"></a>00136 Q_LONG <a class="code" href="classKNetwork_1_1KActiveSocketBase.html#acab45e62418c819f75f1f03a19520ab2" title="This call is not supported on sockets.">size</a> = <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a3838a3d1e30df942f09d385c512dc911" title="Returns the number of bytes available on this socket.">bytesAvailable</a>();
<a name="l00137"></a>00137 <span class="keywordflow">if</span> (size == 0)
<a name="l00138"></a>00138 {
<a name="l00139"></a>00139 <span class="comment">// nothing available yet to read</span>
<a name="l00140"></a>00140 <span class="comment">// wait for data if we're not blocking</span>
<a name="l00141"></a>00141 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KSocketBase.html#a109a7e8b7d5fccbf5720bd5dbb6cfd5a" title="Retrieves this socket's blocking mode.">blocking</a>())
<a name="l00142"></a>00142 <a class="code" href="classKNetwork_1_1KSocketBase.html#a6ba9d5dd5ec196e72d7593dd5e8bebf1" title="Retrieves the socket implementation used on this socket.">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KSocketDevice.html#ac2e00f045b4b00566dd4b32b57d88bc2" title="Waits up to msecs for more data to be available on this socket.">waitForMore</a>(-1); <span class="comment">// wait forever</span>
<a name="l00143"></a>00143 <span class="keywordflow">else</span>
<a name="l00144"></a>00144 {
<a name="l00145"></a>00145 <span class="comment">// mimic error</span>
<a name="l00146"></a>00146 <a class="code" href="classKNetwork_1_1KActiveSocketBase.html#a3590741f0f0046536dac3a8ccb31f565" title="Sets the socket's error code and the I/O Device's status.">setError</a>(IO_ReadError, WouldBlock);
<a name="l00147"></a>00147 emit <a class="code" href="classKNetwork_1_1KClientSocketBase.html#aa484bdf0e485b189d03924f0c01ffdf5" title="This signal is emitted when this object finds an error.">gotError</a>(WouldBlock);
<a name="l00148"></a>00148 <span class="keywordflow">return</span> <a class="code" href="classKNetwork_1_1KDatagramPacket.html" title="one datagram">KDatagramPacket</a>();
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="comment">// try again</span>
<a name="l00152"></a>00152 size = <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a3838a3d1e30df942f09d385c512dc911" title="Returns the number of bytes available on this socket.">bytesAvailable</a>();
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154
<a name="l00155"></a>00155 <a class="codeRef" href="qbytearray.html">QByteArray</a> data(size);
<a name="l00156"></a>00156 <a class="code" href="classKNetwork_1_1KSocketAddress.html" title="A generic socket address.">KSocketAddress</a> address;
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="comment">// now do the reading</span>
<a name="l00159"></a>00159 size = <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a12568a3fddea910248a1fee9e6fea5a8" title="Reads data from a socket.">readBlock</a>(data.data(), <a class="code" href="classKNetwork_1_1KActiveSocketBase.html#acab45e62418c819f75f1f03a19520ab2" title="This call is not supported on sockets.">size</a>, address);
<a name="l00160"></a>00160 <span class="keywordflow">if</span> (size < 0)
<a name="l00161"></a>00161 <span class="comment">// error has been set</span>
<a name="l00162"></a>00162 <span class="keywordflow">return</span> <a class="code" href="classKNetwork_1_1KDatagramPacket.html" title="one datagram">KDatagramPacket</a>();
<a name="l00163"></a>00163
<a name="l00164"></a>00164 data.resize(size); <span class="comment">// just to be sure</span>
<a name="l00165"></a>00165 <span class="keywordflow">return</span> <a class="code" href="classKNetwork_1_1KDatagramPacket.html" title="one datagram">KDatagramPacket</a>(data, address);
<a name="l00166"></a>00166 }
<a name="l00167"></a>00167
<a name="l00168"></a><a class="code" href="classKNetwork_1_1KDatagramSocket.html#a8421868490692607c92c5422f51f21e9">00168</a> Q_LONG <a class="code" href="classKNetwork_1_1KDatagramSocket.html#a8421868490692607c92c5422f51f21e9" title="Sends one datagram into the stream.">KDatagramSocket::send</a>(<span class="keyword">const</span> <a class="code" href="classKNetwork_1_1KDatagramPacket.html" title="one datagram">KDatagramPacket</a>& packet)
<a name="l00169"></a>00169 {
<a name="l00170"></a>00170 <span class="keywordflow">return</span> <a class="code" href="classKNetwork_1_1KDatagramSocket.html#ac45576121b6f7a8dce759144fc33b153" title="Writes data to the socket.">writeBlock</a>(packet.<a class="code" href="classKNetwork_1_1KDatagramPacket.html#ae86019ccdd83a8608531911a5a0fff8a" title="Returns the data.">data</a>(), packet.<a class="code" href="classKNetwork_1_1KDatagramPacket.html#a94d7c267810d0b59a73b94776b66be7f" title="Returns the data length.">size</a>(), packet.<a class="code" href="classKNetwork_1_1KDatagramPacket.html#aa023760f7db6d1df1bfa8b12bc54c6b4" title="Returns the socket address.">address</a>());
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172
<a name="l00173"></a><a class="code" href="classKNetwork_1_1KDatagramSocket.html#ac45576121b6f7a8dce759144fc33b153">00173</a> Q_LONG <a class="code" href="classKNetwork_1_1KDatagramSocket.html#ac45576121b6f7a8dce759144fc33b153" title="Writes data to the socket.">KDatagramSocket::writeBlock</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *data, Q_ULONG len, <span class="keyword">const</span> <a class="code" href="classKNetwork_1_1KSocketAddress.html" title="A generic socket address.">KSocketAddress</a>& to)
<a name="l00174"></a>00174 {
<a name="l00175"></a>00175 <span class="keywordflow">if</span> (to.<a class="code" href="classKNetwork_1_1KSocketAddress.html#a7a6ba907b487e6e3b57836aca891a267" title="Returns the family of this address.">family</a>() != AF_UNSPEC)
<a name="l00176"></a>00176 {
<a name="l00177"></a>00177 <span class="comment">// make sure the socket is open at this point</span>
<a name="l00178"></a>00178 <span class="keywordflow">if</span> (!<a class="code" href="classKNetwork_1_1KSocketBase.html#a6ba9d5dd5ec196e72d7593dd5e8bebf1" title="Retrieves the socket implementation used on this socket.">socketDevice</a>()-><a class="codeRef" href="qiodevice.html#isOpen">isOpen</a>())
<a name="l00179"></a>00179 <span class="comment">// error handling will happen below</span>
<a name="l00180"></a>00180 <a class="code" href="classKNetwork_1_1KSocketBase.html#a6ba9d5dd5ec196e72d7593dd5e8bebf1" title="Retrieves the socket implementation used on this socket.">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KSocketDevice.html#a2b8bdeb8203d7d65360dc3a4ec36fa84" title="Creates a socket but don't connect or bind anywhere.">create</a>(to.<a class="code" href="classKNetwork_1_1KSocketAddress.html#a7a6ba907b487e6e3b57836aca891a267" title="Returns the family of this address.">family</a>(), SOCK_DGRAM, 0);
<a name="l00181"></a>00181 }
<a name="l00182"></a>00182 <span class="keywordflow">return</span> <a class="code" href="classKNetwork_1_1KDatagramSocket.html#ac45576121b6f7a8dce759144fc33b153" title="Writes data to the socket.">KClientSocketBase::writeBlock</a>(data, len, to);
<a name="l00183"></a>00183 }
<a name="l00184"></a>00184
<a name="l00185"></a>00185 <span class="keywordtype">void</span> KDatagramSocket::lookupFinishedLocal()
<a name="l00186"></a>00186 {
<a name="l00187"></a>00187 <span class="comment">// bind lookup has finished and succeeded</span>
<a name="l00188"></a>00188 <span class="comment">// state() == HostFound</span>
<a name="l00189"></a>00189
<a name="l00190"></a>00190 <span class="keywordflow">if</span> (!doBind())
<a name="l00191"></a>00191 <span class="keywordflow">return</span>; <span class="comment">// failed binding</span>
<a name="l00192"></a>00192
<a name="l00193"></a>00193 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KClientSocketBase.html#acf3b15d5dd924a83b57bffe1fb3914a8" title="Returns the internal list of resolved results for the peer address.">peerResults</a>().count() > 0)
<a name="l00194"></a>00194 {
<a name="l00195"></a>00195 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a619f2917a33f5eadc411cf816b9f1aca" title="Sets the socket state to state.">setState</a>(Connecting);
<a name="l00196"></a>00196 emit <a class="code" href="classKNetwork_1_1KClientSocketBase.html#af7dabc6de57ec055154bddc881723d55" title="This signal is emitted whenever the socket state changes.">stateChanged</a>(Connecting);
<a name="l00197"></a>00197
<a name="l00198"></a>00198 lookupFinishedPeer();
<a name="l00199"></a>00199 }
<a name="l00200"></a>00200 }
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <span class="keywordtype">void</span> KDatagramSocket::lookupFinishedPeer()
<a name="l00203"></a>00203 {
<a name="l00204"></a>00204 <span class="comment">// this function is called by lookupFinishedLocal above</span>
<a name="l00205"></a>00205 <span class="comment">// and is also connected to a signal</span>
<a name="l00206"></a>00206 <span class="comment">// so it might be called twice.</span>
<a name="l00207"></a>00207
<a name="l00208"></a>00208 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a6e1581e22f3273a299037a138dbfe8f3" title="Returns the current state for this socket.">state</a>() != Connecting)
<a name="l00209"></a>00209 <span class="keywordflow">return</span>;
<a name="l00210"></a>00210
<a name="l00211"></a>00211 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KClientSocketBase.html#acf3b15d5dd924a83b57bffe1fb3914a8" title="Returns the internal list of resolved results for the peer address.">peerResults</a>().count() == 0)
<a name="l00212"></a>00212 {
<a name="l00213"></a>00213 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a619f2917a33f5eadc411cf816b9f1aca" title="Sets the socket state to state.">setState</a>(Unconnected);
<a name="l00214"></a>00214 emit <a class="code" href="classKNetwork_1_1KClientSocketBase.html#af7dabc6de57ec055154bddc881723d55" title="This signal is emitted whenever the socket state changes.">stateChanged</a>(Unconnected);
<a name="l00215"></a>00215 <span class="keywordflow">return</span>;
<a name="l00216"></a>00216 }
<a name="l00217"></a>00217
<a name="l00218"></a>00218 <a class="codeRef" href="qvaluelist.html#ConstIterator">KResolverResults::ConstIterator</a> it = <a class="code" href="classKNetwork_1_1KClientSocketBase.html#acf3b15d5dd924a83b57bffe1fb3914a8" title="Returns the internal list of resolved results for the peer address.">peerResults</a>().<a class="codeRef" href="qvaluelist.html#begin">begin</a>();
<a name="l00219"></a>00219 <span class="keywordflow">for</span> ( ; it != <a class="code" href="classKNetwork_1_1KClientSocketBase.html#acf3b15d5dd924a83b57bffe1fb3914a8" title="Returns the internal list of resolved results for the peer address.">peerResults</a>().<a class="codeRef" href="qvaluelist.html#end">end</a>(); ++it)
<a name="l00220"></a>00220 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KDatagramSocket.html#ab10d492ab40ad858e8233c62001418c7" title=""Connects" this socket to the given address.">connect</a>(*it))
<a name="l00221"></a>00221 {
<a name="l00222"></a>00222 <span class="comment">// weee, we connected</span>
<a name="l00223"></a>00223
<a name="l00224"></a>00224 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a619f2917a33f5eadc411cf816b9f1aca" title="Sets the socket state to state.">setState</a>(Connected); <span class="comment">// this sets up signals</span>
<a name="l00225"></a>00225 <span class="comment">//setupSignals(); // setState sets up the signals</span>
<a name="l00226"></a>00226
<a name="l00227"></a>00227 emit <a class="code" href="classKNetwork_1_1KClientSocketBase.html#af7dabc6de57ec055154bddc881723d55" title="This signal is emitted whenever the socket state changes.">stateChanged</a>(Connected);
<a name="l00228"></a>00228 emit <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a031dcb4fffd6733cab7e36aa12fb75ad" title="This socket is emitted when the socket successfully connects to a remote address.">connected</a>(*it);
<a name="l00229"></a>00229 <span class="keywordflow">return</span>;
<a name="l00230"></a>00230 }
<a name="l00231"></a>00231
<a name="l00232"></a>00232 <span class="comment">// no connection</span>
<a name="l00233"></a>00233 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#abf8f050fc7b575366b922b4bf9553df3" title="Convenience function to set this object's error code to match that of the socket device.">copyError</a>();
<a name="l00234"></a>00234 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#a619f2917a33f5eadc411cf816b9f1aca" title="Sets the socket state to state.">setState</a>(Unconnected);
<a name="l00235"></a>00235 emit <a class="code" href="classKNetwork_1_1KClientSocketBase.html#af7dabc6de57ec055154bddc881723d55" title="This signal is emitted whenever the socket state changes.">stateChanged</a>(Unconnected);
<a name="l00236"></a>00236 emit <a class="code" href="classKNetwork_1_1KClientSocketBase.html#aa484bdf0e485b189d03924f0c01ffdf5" title="This signal is emitted when this object finds an error.">gotError</a>(<a class="code" href="classKNetwork_1_1KSocketBase.html#a73fc210cade45f2e9e9aa3890b08b729" title="Retrieves the socket error code.">error</a>());
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238
<a name="l00239"></a>00239 <span class="keywordtype">bool</span> KDatagramSocket::doBind()
<a name="l00240"></a>00240 {
<a name="l00241"></a>00241 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KClientSocketBase.html#ac60c1f361bf0ebc5618a899b54e2d1eb" title="Returns the internal list of resolved results for the local address.">localResults</a>().count() == 0)
<a name="l00242"></a>00242 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00243"></a>00243 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a6e1581e22f3273a299037a138dbfe8f3" title="Returns the current state for this socket.">state</a>() >= Bound)
<a name="l00244"></a>00244 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// already bound</span>
<a name="l00245"></a>00245
<a name="l00246"></a>00246 <a class="codeRef" href="qvaluelist.html#ConstIterator">KResolverResults::ConstIterator</a> it = <a class="code" href="classKNetwork_1_1KClientSocketBase.html#ac60c1f361bf0ebc5618a899b54e2d1eb" title="Returns the internal list of resolved results for the local address.">localResults</a>().<a class="codeRef" href="qvaluelist.html#begin">begin</a>();
<a name="l00247"></a>00247 <span class="keywordflow">for</span> ( ; it != <a class="code" href="classKNetwork_1_1KClientSocketBase.html#ac60c1f361bf0ebc5618a899b54e2d1eb" title="Returns the internal list of resolved results for the local address.">localResults</a>().<a class="codeRef" href="qvaluelist.html#end">end</a>(); ++it)
<a name="l00248"></a>00248 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KDatagramSocket.html#a96e0a2a81f3475180d79a566d5302c49" title="Performs host lookups.">bind</a>(*it))
<a name="l00249"></a>00249 {
<a name="l00250"></a>00250 <span class="comment">// bound</span>
<a name="l00251"></a>00251 setupSignals();
<a name="l00252"></a>00252 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00253"></a>00253 }
<a name="l00254"></a>00254
<a name="l00255"></a>00255 <span class="comment">// not bound</span>
<a name="l00256"></a>00256 <span class="comment">// no need to set state since it can only be HostFound already</span>
<a name="l00257"></a>00257 <a class="code" href="classKNetwork_1_1KClientSocketBase.html#abf8f050fc7b575366b922b4bf9553df3" title="Convenience function to set this object's error code to match that of the socket device.">copyError</a>();
<a name="l00258"></a>00258 emit <a class="code" href="classKNetwork_1_1KClientSocketBase.html#aa484bdf0e485b189d03924f0c01ffdf5" title="This signal is emitted when this object finds an error.">gotError</a>(<a class="code" href="classKNetwork_1_1KSocketBase.html#a73fc210cade45f2e9e9aa3890b08b729" title="Retrieves the socket error code.">error</a>());
<a name="l00259"></a>00259 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00260"></a>00260 }
<a name="l00261"></a>00261
<a name="l00262"></a>00262 <span class="keywordtype">void</span> KDatagramSocket::setupSignals()
<a name="l00263"></a>00263 {
<a name="l00264"></a>00264 <a class="codeRef" href="qsocketnotifier.html">QSocketNotifier</a> *n = <a class="code" href="classKNetwork_1_1KSocketBase.html#a6ba9d5dd5ec196e72d7593dd5e8bebf1" title="Retrieves the socket implementation used on this socket.">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KSocketDevice.html#acdf84ff6f73d3aa49ac2b2b52ed05a8d" title="Returns a socket notifier for input on this socket.">readNotifier</a>();
<a name="l00265"></a>00265 <span class="keywordflow">if</span> (n)
<a name="l00266"></a>00266 {
<a name="l00267"></a>00267 n-><a class="codeRef" href="qsocketnotifier.html#setEnabled">setEnabled</a>(<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a61e94d4e636d89617ed470cc865e46ab" title="Returns true if the readyRead signal is set to be emitted.">emitsReadyRead</a>());
<a name="l00268"></a>00268 <a class="code" href="classKNetwork_1_1KDatagramSocket.html#ab10d492ab40ad858e8233c62001418c7" title=""Connects" this socket to the given address.">QObject::connect</a>(n, SIGNAL(activated(<span class="keywordtype">int</span>)), <span class="keyword">this</span>, SLOT(<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a50214a8b353c9c7303999e4824ddcc5a" title="This slot is connected to the read notifier's signal meaning the socket can read more data...">slotReadActivity</a>()));
<a name="l00269"></a>00269 }
<a name="l00270"></a>00270 <span class="keywordflow">else</span>
<a name="l00271"></a>00271 <span class="keywordflow">return</span>;
<a name="l00272"></a>00272
<a name="l00273"></a>00273 n = <a class="code" href="classKNetwork_1_1KSocketBase.html#a6ba9d5dd5ec196e72d7593dd5e8bebf1" title="Retrieves the socket implementation used on this socket.">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KSocketDevice.html#a42346acae11b01a1a8908018f5cf99c6" title="Returns a socket notifier for output on this socket.">writeNotifier</a>();
<a name="l00274"></a>00274 <span class="keywordflow">if</span> (n)
<a name="l00275"></a>00275 {
<a name="l00276"></a>00276 n-><a class="codeRef" href="qsocketnotifier.html#setEnabled">setEnabled</a>(<a class="code" href="classKNetwork_1_1KClientSocketBase.html#a5164d7aba6d0d88b0a2b435b63a2cc67" title="Returns true if the readyWrite signal is set to be emitted.">emitsReadyWrite</a>());
<a name="l00277"></a>00277 <a class="code" href="classKNetwork_1_1KDatagramSocket.html#ab10d492ab40ad858e8233c62001418c7" title=""Connects" this socket to the given address.">QObject::connect</a>(n, SIGNAL(activated(<span class="keywordtype">int</span>)), <span class="keyword">this</span>, SLOT(<a class="code" href="classKNetwork_1_1KClientSocketBase.html#ace11d590c5af59d4fe1b4a01cb3cef2c" title="This slot is connected to the write notifier's signal meaning the socket can write more data...">slotWriteActivity</a>()));
<a name="l00278"></a>00278 }
<a name="l00279"></a>00279 <span class="keywordflow">else</span>
<a name="l00280"></a>00280 <span class="keywordflow">return</span>;
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282
<a name="l00283"></a>00283 <span class="preprocessor">#include "kdatagramsocket.moc"</span>
</pre></div></div>
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value="classKConfigSkeleton_1_1ItemInt64.html">kconfigskeleton::itemint64</option>, <option value="classKConfigSkeleton_1_1ItemIntList.html">kconfigskeleton::itemintlist</option>, <option value="classKConfigSkeleton_1_1ItemLong.html">kconfigskeleton::itemlong</option>, <option value="classKConfigSkeleton_1_1ItemPassword.html">kconfigskeleton::itempassword</option>, <option value="classKConfigSkeleton_1_1ItemPath.html">kconfigskeleton::itempath</option>, <option value="classKConfigSkeleton_1_1ItemPathList.html">kconfigskeleton::itempathlist</option>, <option value="classKConfigSkeleton_1_1ItemPoint.html">kconfigskeleton::itempoint</option>, <option value="classKConfigSkeleton_1_1ItemProperty.html">kconfigskeleton::itemproperty</option>, <option value="classKConfigSkeleton_1_1ItemRect.html">kconfigskeleton::itemrect</option>, <option value="classKConfigSkeleton_1_1ItemSize.html">kconfigskeleton::itemsize</option>, <option value="classKConfigSkeleton_1_1ItemString.html">kconfigskeleton::itemstring</option>, <option value="classKConfigSkeleton_1_1ItemStringList.html">kconfigskeleton::itemstringlist</option>, <option value="classKConfigSkeleton_1_1ItemUInt.html">kconfigskeleton::itemuint</option>, <option value="classKConfigSkeleton_1_1ItemUInt64.html">kconfigskeleton::itemuint64</option>, <option value="classKConfigSkeleton_1_1ItemULong.html">kconfigskeleton::itemulong</option>, <option value="classKConfigSkeletonItem.html">kconfigskeletonitem</option>, <option value="classKCrash.html">kcrash</option>, <option value="classKDCOPPropertyProxy.html">kdcoppropertyproxy</option>, <option value="classKDebugDCOPIface.html">kdebugdcopiface</option>, <option value="classKDesktopFile.html">kdesktopfile</option>, <option value="classKExtendedSocket.html">kextendedsocket</option>, <option value="classKGenericFactory.html">kgenericfactory</option>, <option 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