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<a class="el" href="dir_000000.html">kdecore</a> » <a class="el" href="dir_000003.html">network</a></div>
<h1>kserversocket.cpp</h1><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 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 <qsocketnotifier.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <qmutex.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 "ksocketbase.h"</span>
<a name="l00033"></a>00033 <span class="preprocessor">#include "ksocketdevice.h"</span>
<a name="l00034"></a>00034 <span class="preprocessor">#include "kstreamsocket.h"</span>
<a name="l00035"></a>00035 <span class="preprocessor">#include "kbufferedsocket.h"</span>
<a name="l00036"></a>00036 <span class="preprocessor">#include "kserversocket.h"</span>
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="keyword">using</span> <span class="keyword">namespace </span>KNetwork;
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <span class="keyword">class </span>KNetwork::KServerSocketPrivate
<a name="l00041"></a>00041 {
<a name="l00042"></a>00042 <span class="keyword">public</span>:
<a name="l00043"></a>00043 <a class="code" href="classKNetwork_1_1KResolver.html">KResolver</a> resolver;
<a name="l00044"></a>00044 <a class="code" href="classKNetwork_1_1KResolverResults.html">KResolverResults</a> resolverResults;
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <span class="keyword">enum</span> { None, LookupDone, Bound, Listening } state;
<a name="l00047"></a>00047 <span class="keywordtype">int</span> backlog;
<a name="l00048"></a>00048 <span class="keywordtype">int</span> timeout;
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="keywordtype">bool</span> bindWhenFound : 1, listenWhenBound : 1, useKBufferedSocket : 1;
<a name="l00051"></a>00051
<a name="l00052"></a>00052 KServerSocketPrivate()
<a name="l00053"></a>00053 : state(None), timeout(0), bindWhenFound(false), listenWhenBound(false),
<a name="l00054"></a>00054 useKBufferedSocket(true)
<a name="l00055"></a>00055 {
<a name="l00056"></a>00056 resolver.setFlags(KResolver::Passive);
<a name="l00057"></a>00057 resolver.setFamily(KResolver::KnownFamily);
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059 };
<a name="l00060"></a>00060
<a name="l00061"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a0">00061</a> <a class="code" href="classKServerSocket.html#a0">KServerSocket::KServerSocket</a>(<a class="codeRef" doxygen="qt.tag:" href="qobject.html">QObject</a>* parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00062"></a>00062 : <a class="codeRef" doxygen="qt.tag:" href="qobject.html">QObject</a>(parent, name), d(new KServerSocketPrivate)
<a name="l00063"></a>00063 {
<a name="l00064"></a>00064 <a class="codeRef" doxygen="qt.tag:" href="qobject.html#connect">QObject::connect</a>(&d->resolver, SIGNAL(finished(<a class="code" href="classKNetwork_1_1KResolverResults.html">KResolverResults</a>)),
<a name="l00065"></a>00065 <span class="keyword">this</span>, SLOT(lookupFinishedSlot()));
<a name="l00066"></a>00066 }
<a name="l00067"></a>00067
<a name="l00068"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a1">00068</a> <a class="code" href="classKServerSocket.html#a0">KServerSocket::KServerSocket</a>(<span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a>& service, <a class="codeRef" doxygen="qt.tag:" href="qobject.html">QObject</a>* parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00069"></a>00069 : <a class="codeRef" doxygen="qt.tag:" href="qobject.html">QObject</a>(parent, name), d(new KServerSocketPrivate)
<a name="l00070"></a>00070 {
<a name="l00071"></a>00071 <a class="codeRef" doxygen="qt.tag:" href="qobject.html#connect">QObject::connect</a>(&d->resolver, SIGNAL(finished(<a class="code" href="classKNetwork_1_1KResolverResults.html">KResolverResults</a>)),
<a name="l00072"></a>00072 <span class="keyword">this</span>, SLOT(lookupFinishedSlot()));
<a name="l00073"></a>00073 d->resolver.setServiceName(service);
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075
<a name="l00076"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a2">00076</a> <a class="code" href="classKServerSocket.html#a0">KServerSocket::KServerSocket</a>(<span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a>& node, <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a>& service,
<a name="l00077"></a>00077 <a class="codeRef" doxygen="qt.tag:" href="qobject.html">QObject</a>* parent, <span class="keyword">const</span> <span class="keywordtype">char</span>* name)
<a name="l00078"></a>00078 : <a class="codeRef" doxygen="qt.tag:" href="qobject.html">QObject</a>(parent, name), d(new KServerSocketPrivate)
<a name="l00079"></a>00079 {
<a name="l00080"></a>00080 <a class="codeRef" doxygen="qt.tag:" href="qobject.html#connect">QObject::connect</a>(&d->resolver, SIGNAL(finished(<a class="code" href="classKNetwork_1_1KResolverResults.html">KResolverResults</a>)),
<a name="l00081"></a>00081 <span class="keyword">this</span>, SLOT(lookupFinishedSlot()));
<a name="l00082"></a>00082 <a class="code" href="classKNetwork_1_1KServerSocket.html#a8">setAddress</a>(node, service);
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00085"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a3">00085</a> <a class="code" href="classKServerSocket.html#a2">KServerSocket::~KServerSocket</a>()
<a name="l00086"></a>00086 {
<a name="l00087"></a>00087 <a class="code" href="classKNetwork_1_1KServerSocket.html#a17">close</a>();
<a name="l00088"></a>00088 <span class="keyword">delete</span> d;
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#b0">00091</a> <span class="keywordtype">bool</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#b0">KServerSocket::setSocketOptions</a>(<span class="keywordtype">int</span> opts)
<a name="l00092"></a>00092 {
<a name="l00093"></a>00093 <a class="codeRef" doxygen="qt.tag:" href="qmutexlocker.html">QMutexLocker</a> locker(<a class="code" href="classKNetwork_1_1KSocketBase.html#a15">mutex</a>());
<a name="l00094"></a>00094 <a class="code" href="classKNetwork_1_1KSocketBase.html#b0">KSocketBase::setSocketOptions</a>(opts); <span class="comment">// call parent</span>
<a name="l00095"></a>00095 <span class="keywordtype">bool</span> result = <a class="code" href="classKNetwork_1_1KSocketBase.html#a10">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KSocketDevice.html#a5">setSocketOptions</a>(opts); <span class="comment">// and set the implementation</span>
<a name="l00096"></a>00096 <a class="code" href="classKNetwork_1_1KServerSocket.html#b1">copyError</a>();
<a name="l00097"></a>00097 <span class="keywordflow">return</span> result;
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099
<a name="l00100"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a4">00100</a> <a class="code" href="classKNetwork_1_1KResolver.html">KResolver</a>& <a class="code" href="classKNetwork_1_1KServerSocket.html#a4">KServerSocket::resolver</a>()<span class="keyword"> const</span>
<a name="l00101"></a>00101 <span class="keyword"></span>{
<a name="l00102"></a>00102 <span class="keywordflow">return</span> d->resolver;
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104
<a name="l00105"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a5">00105</a> <span class="keyword">const</span> <a class="code" href="classKNetwork_1_1KResolverResults.html">KResolverResults</a>& <a class="code" href="classKNetwork_1_1KServerSocket.html#a5">KServerSocket::resolverResults</a>()<span class="keyword"> const</span>
<a name="l00106"></a>00106 <span class="keyword"></span>{
<a name="l00107"></a>00107 <span class="keywordflow">return</span> d->resolverResults;
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109
<a name="l00110"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a6">00110</a> <span class="keywordtype">void</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a6">KServerSocket::setResolutionEnabled</a>(<span class="keywordtype">bool</span> enable)
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112 <span class="keywordflow">if</span> (enable)
<a name="l00113"></a>00113 d->resolver.setFlags(d->resolver.flags() & ~<a class="code" href="classKNetwork_1_1KResolver.html">KResolver</a>::NoResolve);
<a name="l00114"></a>00114 <span class="keywordflow">else</span>
<a name="l00115"></a>00115 d->resolver.setFlags(d->resolver.flags() | KResolver::NoResolve);
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117
<a name="l00118"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a7">00118</a> <span class="keywordtype">void</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a7">KServerSocket::setFamily</a>(<span class="keywordtype">int</span> families)
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120 d->resolver.setFamily(families);
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122
<a name="l00123"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a8">00123</a> <span class="keywordtype">void</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a8">KServerSocket::setAddress</a>(<span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a>& service)
<a name="l00124"></a>00124 {
<a name="l00125"></a>00125 d->resolver.setNodeName(QString::null);
<a name="l00126"></a>00126 d->resolver.setServiceName(service);
<a name="l00127"></a>00127 d->resolverResults.empty();
<a name="l00128"></a>00128 <span class="keywordflow">if</span> (d->state <= KServerSocketPrivate::LookupDone)
<a name="l00129"></a>00129 d->state = KServerSocketPrivate::None;
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131
<a name="l00132"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a9">00132</a> <span class="keywordtype">void</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a8">KServerSocket::setAddress</a>(<span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a>& node, <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a>& service)
<a name="l00133"></a>00133 {
<a name="l00134"></a>00134 d->resolver.setNodeName(node);
<a name="l00135"></a>00135 d->resolver.setServiceName(service);
<a name="l00136"></a>00136 d->resolverResults.empty();
<a name="l00137"></a>00137 <span class="keywordflow">if</span> (d->state <= KServerSocketPrivate::LookupDone)
<a name="l00138"></a>00138 d->state = KServerSocketPrivate::None;
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140
<a name="l00141"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a10">00141</a> <span class="keywordtype">void</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a10">KServerSocket::setTimeout</a>(<span class="keywordtype">int</span> msec)
<a name="l00142"></a>00142 {
<a name="l00143"></a>00143 d->timeout = msec;
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145
<a name="l00146"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a11">00146</a> <span class="keywordtype">bool</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a11">KServerSocket::lookup</a>()
<a name="l00147"></a>00147 {
<a name="l00148"></a>00148 <a class="code" href="classKNetwork_1_1KSocketBase.html#b3">setError</a>(NoError);
<a name="l00149"></a>00149 <span class="keywordflow">if</span> (d->resolver.isRunning() && !<a class="code" href="classKNetwork_1_1KSocketBase.html#a3">blocking</a>())
<a name="l00150"></a>00150 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// already doing lookup</span>
<a name="l00151"></a>00151
<a name="l00152"></a>00152 <span class="keywordflow">if</span> (d->state >= KServerSocketPrivate::LookupDone)
<a name="l00153"></a>00153 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// results are already available</span>
<a name="l00154"></a>00154
<a name="l00155"></a>00155 <span class="comment">// make sure we have at least one parameter for lookup</span>
<a name="l00156"></a>00156 <span class="keywordflow">if</span> (d->resolver.serviceName().isNull() &&
<a name="l00157"></a>00157 !d->resolver.nodeName().isNull())
<a name="l00158"></a>00158 d->resolver.setServiceName(<a class="codeRef" doxygen="qt.tag:" href="qstring.html#fromLatin1">QString::fromLatin1</a>(<span class="stringliteral">""</span>));
<a name="l00159"></a>00159
<a name="l00160"></a>00160 <span class="comment">// don't restart the lookups if they had succeeded and</span>
<a name="l00161"></a>00161 <span class="comment">// the input values weren't changed</span>
<a name="l00162"></a>00162
<a name="l00163"></a>00163 <span class="comment">// reset results</span>
<a name="l00164"></a>00164 d->resolverResults = <a class="code" href="classKNetwork_1_1KResolverResults.html">KResolverResults</a>();
<a name="l00165"></a>00165
<a name="l00166"></a>00166 <span class="keywordflow">if</span> (d->resolver.status() <= 0)
<a name="l00167"></a>00167 <span class="comment">// if it's already running, there's no harm in calling again</span>
<a name="l00168"></a>00168 d->resolver.start(); <span class="comment">// signal may emit</span>
<a name="l00169"></a>00169
<a name="l00170"></a>00170 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KSocketBase.html#a3">blocking</a>())
<a name="l00171"></a>00171 {
<a name="l00172"></a>00172 <span class="comment">// we're in blocking mode operation</span>
<a name="l00173"></a>00173 <span class="comment">// wait for the results</span>
<a name="l00174"></a>00174
<a name="l00175"></a>00175 d->resolver.wait(); <span class="comment">// signal may be emitted again</span>
<a name="l00176"></a>00176 <span class="comment">// lookupFinishedSlot has been called</span>
<a name="l00177"></a>00177 }
<a name="l00178"></a>00178
<a name="l00179"></a>00179 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00180"></a>00180 }
<a name="l00181"></a>00181
<a name="l00182"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a15">00182</a> <span class="keywordtype">bool</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a14">KServerSocket::bind</a>(<span class="keyword">const</span> <a class="code" href="classKNetwork_1_1KResolverEntry.html">KResolverEntry</a>& address)
<a name="l00183"></a>00183 {
<a name="l00184"></a>00184 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KSocketBase.html#a10">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KServerSocket.html#a14">bind</a>(address))
<a name="l00185"></a>00185 {
<a name="l00186"></a>00186 <a class="code" href="classKNetwork_1_1KSocketBase.html#b3">setError</a>(NoError);
<a name="l00187"></a>00187
<a name="l00188"></a>00188 d->state = KServerSocketPrivate::Bound;
<a name="l00189"></a>00189 emit <a class="code" href="classKNetwork_1_1KServerSocket.html#l2">bound</a>(address);
<a name="l00190"></a>00190 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00191"></a>00191 }
<a name="l00192"></a>00192 <a class="code" href="classKNetwork_1_1KServerSocket.html#b1">copyError</a>();
<a name="l00193"></a>00193 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00194"></a>00194 }
<a name="l00195"></a>00195
<a name="l00196"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a12">00196</a> <span class="keywordtype">bool</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a14">KServerSocket::bind</a>(<span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a>& node, <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a>& service)
<a name="l00197"></a>00197 {
<a name="l00198"></a>00198 <a class="code" href="classKNetwork_1_1KServerSocket.html#a8">setAddress</a>(node, service);
<a name="l00199"></a>00199 <span class="keywordflow">return</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a14">bind</a>();
<a name="l00200"></a>00200 }
<a name="l00201"></a>00201
<a name="l00202"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a13">00202</a> <span class="keywordtype">bool</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a14">KServerSocket::bind</a>(<span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a>& service)
<a name="l00203"></a>00203 {
<a name="l00204"></a>00204 <a class="code" href="classKNetwork_1_1KServerSocket.html#a8">setAddress</a>(service);
<a name="l00205"></a>00205 <span class="keywordflow">return</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a14">bind</a>();
<a name="l00206"></a>00206 }
<a name="l00207"></a>00207
<a name="l00208"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a14">00208</a> <span class="keywordtype">bool</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a14">KServerSocket::bind</a>()
<a name="l00209"></a>00209 {
<a name="l00210"></a>00210 <span class="keywordflow">if</span> (d->state >= KServerSocketPrivate::Bound)
<a name="l00211"></a>00211 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00212"></a>00212
<a name="l00213"></a>00213 <span class="keywordflow">if</span> (d->state < KServerSocketPrivate::LookupDone)
<a name="l00214"></a>00214 {
<a name="l00215"></a>00215 <span class="keywordflow">if</span> (!<a class="code" href="classKNetwork_1_1KSocketBase.html#a3">blocking</a>())
<a name="l00216"></a>00216 {
<a name="l00217"></a>00217 d->bindWhenFound = <span class="keyword">true</span>;
<a name="l00218"></a>00218 <span class="keywordtype">bool</span> ok = <a class="code" href="classKNetwork_1_1KServerSocket.html#a11">lookup</a>(); <span class="comment">// will call doBind</span>
<a name="l00219"></a>00219 <span class="keywordflow">if</span> (d->state >= KServerSocketPrivate::Bound)
<a name="l00220"></a>00220 d->bindWhenFound = <span class="keyword">false</span>;
<a name="l00221"></a>00221 <span class="keywordflow">return</span> ok;
<a name="l00222"></a>00222 }
<a name="l00223"></a>00223
<a name="l00224"></a>00224 <span class="comment">// not blocking</span>
<a name="l00225"></a>00225 <span class="keywordflow">if</span> (!<a class="code" href="classKNetwork_1_1KServerSocket.html#a11">lookup</a>())
<a name="l00226"></a>00226 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00227"></a>00227 }
<a name="l00228"></a>00228
<a name="l00229"></a>00229 <span class="keywordflow">return</span> doBind();
<a name="l00230"></a>00230 }
<a name="l00231"></a>00231
<a name="l00232"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a16">00232</a> <span class="keywordtype">bool</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a16">KServerSocket::listen</a>(<span class="keywordtype">int</span> backlog)
<a name="l00233"></a>00233 {
<a name="l00234"></a>00234 <span class="comment">// WARNING</span>
<a name="l00235"></a>00235 <span class="comment">// this function has to be reentrant</span>
<a name="l00236"></a>00236 <span class="comment">// due to the mechanisms used for binding, this function might</span>
<a name="l00237"></a>00237 <span class="comment">// end up calling itself</span>
<a name="l00238"></a>00238
<a name="l00239"></a>00239 <span class="keywordflow">if</span> (d->state == KServerSocketPrivate::Listening)
<a name="l00240"></a>00240 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// already listening</span>
<a name="l00241"></a>00241
<a name="l00242"></a>00242 d->backlog = backlog;
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="keywordflow">if</span> (d->state < KServerSocketPrivate::Bound)
<a name="l00245"></a>00245 {
<a name="l00246"></a>00246 <span class="comment">// we must bind</span>
<a name="l00247"></a>00247 <span class="comment">// note that we can end up calling ourselves here</span>
<a name="l00248"></a>00248 d->listenWhenBound = <span class="keyword">true</span>;
<a name="l00249"></a>00249 <span class="keywordflow">if</span> (!<a class="code" href="classKNetwork_1_1KServerSocket.html#a14">bind</a>())
<a name="l00250"></a>00250 {
<a name="l00251"></a>00251 d->listenWhenBound = <span class="keyword">false</span>;
<a name="l00252"></a>00252 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00253"></a>00253 }
<a name="l00254"></a>00254
<a name="l00255"></a>00255 <span class="keywordflow">if</span> (d->state < KServerSocketPrivate::Bound)
<a name="l00256"></a>00256 <span class="comment">// asynchronous lookup in progress...</span>
<a name="l00257"></a>00257 <span class="comment">// we can't be blocking here anyways</span>
<a name="l00258"></a>00258 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00259"></a>00259
<a name="l00260"></a>00260 d->listenWhenBound = <span class="keyword">false</span>;
<a name="l00261"></a>00261 }
<a name="l00262"></a>00262
<a name="l00263"></a>00263 <span class="keywordflow">if</span> (d->state < KServerSocketPrivate::Listening)
<a name="l00264"></a>00264 <span class="keywordflow">return</span> doListen();
<a name="l00265"></a>00265
<a name="l00266"></a>00266 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00267"></a>00267 }
<a name="l00268"></a>00268
<a name="l00269"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a17">00269</a> <span class="keywordtype">void</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a17">KServerSocket::close</a>()
<a name="l00270"></a>00270 {
<a name="l00271"></a>00271 <a class="code" href="classKNetwork_1_1KSocketBase.html#a10">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KSocketDevice.html#a7">close</a>();
<a name="l00272"></a>00272 <span class="keywordflow">if</span> (d->resolver.isRunning())
<a name="l00273"></a>00273 d->resolver.cancel(<span class="keyword">false</span>);
<a name="l00274"></a>00274 d->state = KServerSocketPrivate::None;
<a name="l00275"></a>00275 emit <a class="code" href="classKNetwork_1_1KServerSocket.html#l3">closed</a>();
<a name="l00276"></a>00276 }
<a name="l00277"></a>00277
<a name="l00278"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a18">00278</a> <span class="keywordtype">void</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#a18">KServerSocket::setAcceptBuffered</a>(<span class="keywordtype">bool</span> enable)
<a name="l00279"></a>00279 {
<a name="l00280"></a>00280 d->useKBufferedSocket = enable;
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282
<a name="l00283"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a19">00283</a> <a class="code" href="classKNetwork_1_1KActiveSocketBase.html">KActiveSocketBase</a>* <a class="code" href="classKNetwork_1_1KServerSocket.html#a19">KServerSocket::accept</a>()
<a name="l00284"></a>00284 {
<a name="l00285"></a>00285 <span class="keywordflow">if</span> (d->state < KServerSocketPrivate::Listening)
<a name="l00286"></a>00286 {
<a name="l00287"></a>00287 <span class="keywordflow">if</span> (!<a class="code" href="classKNetwork_1_1KSocketBase.html#a3">blocking</a>())
<a name="l00288"></a>00288 {
<a name="l00289"></a>00289 <a class="code" href="classKNetwork_1_1KServerSocket.html#a16">listen</a>();
<a name="l00290"></a>00290 <a class="code" href="classKNetwork_1_1KSocketBase.html#b3">setError</a>(WouldBlock);
<a name="l00291"></a>00291 <span class="keywordflow">return</span> NULL;
<a name="l00292"></a>00292 }
<a name="l00293"></a>00293 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!<a class="code" href="classKNetwork_1_1KServerSocket.html#a16">listen</a>())
<a name="l00294"></a>00294 <span class="comment">// error happened during listen</span>
<a name="l00295"></a>00295 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00296"></a>00296 }
<a name="l00297"></a>00297
<a name="l00298"></a>00298 <span class="comment">// check to see if we're doing a timeout</span>
<a name="l00299"></a>00299 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KSocketBase.html#a3">blocking</a>() && d->timeout > 0)
<a name="l00300"></a>00300 {
<a name="l00301"></a>00301 <span class="keywordtype">bool</span> timedout;
<a name="l00302"></a>00302 <span class="keywordflow">if</span> (!<a class="code" href="classKNetwork_1_1KSocketBase.html#a10">socketDevice</a>()->poll(d->timeout, &timedout))
<a name="l00303"></a>00303 {
<a name="l00304"></a>00304 <a class="code" href="classKNetwork_1_1KServerSocket.html#b1">copyError</a>();
<a name="l00305"></a>00305 <span class="keywordflow">return</span> NULL;
<a name="l00306"></a>00306 }
<a name="l00307"></a>00307
<a name="l00308"></a>00308 <span class="keywordflow">if</span> (timedout)
<a name="l00309"></a>00309 <span class="keywordflow">return</span> 0L;
<a name="l00310"></a>00310 }
<a name="l00311"></a>00311
<a name="l00312"></a>00312 <span class="comment">// we're listening here</span>
<a name="l00313"></a>00313 <a class="code" href="classKNetwork_1_1KSocketDevice.html">KSocketDevice</a>* accepted = <a class="code" href="classKNetwork_1_1KSocketBase.html#a10">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KSocketDevice.html#a14">accept</a>();
<a name="l00314"></a>00314 <span class="keywordflow">if</span> (!accepted)
<a name="l00315"></a>00315 {
<a name="l00316"></a>00316 <span class="comment">// error happened during accept</span>
<a name="l00317"></a>00317 <a class="code" href="classKNetwork_1_1KServerSocket.html#b1">copyError</a>();
<a name="l00318"></a>00318 <span class="keywordflow">return</span> NULL;
<a name="l00319"></a>00319 }
<a name="l00320"></a>00320
<a name="l00321"></a>00321 <a class="code" href="classKNetwork_1_1KStreamSocket.html">KStreamSocket</a>* streamsocket;
<a name="l00322"></a>00322 <span class="keywordflow">if</span> (d->useKBufferedSocket)
<a name="l00323"></a>00323 streamsocket = <span class="keyword">new</span> <a class="code" href="classKNetwork_1_1KBufferedSocket.html">KBufferedSocket</a>();
<a name="l00324"></a>00324 <span class="keywordflow">else</span>
<a name="l00325"></a>00325 streamsocket = <span class="keyword">new</span> <a class="code" href="classKNetwork_1_1KStreamSocket.html">KStreamSocket</a>();
<a name="l00326"></a>00326 streamsocket-><a class="code" href="classKNetwork_1_1KSocketBase.html#a11">setSocketDevice</a>(accepted);
<a name="l00327"></a>00327
<a name="l00328"></a>00328 <span class="comment">// FIXME!</span>
<a name="l00329"></a>00329 <span class="comment">// when KStreamSocket can find out the state of the socket passed through</span>
<a name="l00330"></a>00330 <span class="comment">// setSocketDevice, this will probably be unnecessary:</span>
<a name="l00331"></a>00331 streamsocket-><a class="code" href="classKNetwork_1_1KClientSocketBase.html#b1">setState</a>(KStreamSocket::Connected);
<a name="l00332"></a>00332 streamsocket-><a class="codeRef" doxygen="qt.tag:" href="qiodevice.html#setFlags">setFlags</a>(IO_Sequential | IO_Raw | IO_ReadWrite | IO_Open | IO_Async);
<a name="l00333"></a>00333
<a name="l00334"></a>00334 <span class="keywordflow">return</span> streamsocket;
<a name="l00335"></a>00335 }
<a name="l00336"></a>00336
<a name="l00337"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a20">00337</a> <a class="code" href="classKNetwork_1_1KSocketAddress.html">KSocketAddress</a> <a class="code" href="classKNetwork_1_1KServerSocket.html#a20">KServerSocket::localAddress</a>()<span class="keyword"> const</span>
<a name="l00338"></a>00338 <span class="keyword"></span>{
<a name="l00339"></a>00339 <span class="keywordflow">return</span> <a class="code" href="classKNetwork_1_1KSocketBase.html#a10">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KSocketDevice.html#a24">localAddress</a>();
<a name="l00340"></a>00340 }
<a name="l00341"></a>00341
<a name="l00342"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#a21">00342</a> <a class="code" href="classKNetwork_1_1KSocketAddress.html">KSocketAddress</a> <a class="code" href="classKNetwork_1_1KServerSocket.html#a21">KServerSocket::externalAddress</a>()<span class="keyword"> const</span>
<a name="l00343"></a>00343 <span class="keyword"></span>{
<a name="l00344"></a>00344 <span class="keywordflow">return</span> <a class="code" href="classKNetwork_1_1KSocketBase.html#a10">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KSocketDevice.html#a26">externalAddress</a>();
<a name="l00345"></a>00345 }
<a name="l00346"></a>00346
<a name="l00347"></a>00347 <span class="keywordtype">void</span> KServerSocket::lookupFinishedSlot()
<a name="l00348"></a>00348 {
<a name="l00349"></a>00349 <span class="keywordflow">if</span> (d->resolver.isRunning() || d->state > KServerSocketPrivate::LookupDone)
<a name="l00350"></a>00350 <span class="keywordflow">return</span>;
<a name="l00351"></a>00351
<a name="l00352"></a>00352 <span class="keywordflow">if</span> (d->resolver.status() < 0)
<a name="l00353"></a>00353 {
<a name="l00354"></a>00354 <a class="code" href="classKNetwork_1_1KSocketBase.html#b3">setError</a>(LookupFailure);
<a name="l00355"></a>00355 emit <a class="code" href="classKNetwork_1_1KServerSocket.html#l0">gotError</a>(LookupFailure);
<a name="l00356"></a>00356 d->bindWhenFound = d->listenWhenBound = <span class="keyword">false</span>;
<a name="l00357"></a>00357 d->state = KServerSocketPrivate::None;
<a name="l00358"></a>00358 <span class="keywordflow">return</span>;
<a name="l00359"></a>00359 }
<a name="l00360"></a>00360
<a name="l00361"></a>00361 <span class="comment">// lookup succeeded</span>
<a name="l00362"></a>00362 d->resolverResults = d->resolver.results();
<a name="l00363"></a>00363 d->state = KServerSocketPrivate::LookupDone;
<a name="l00364"></a>00364 emit <a class="code" href="classKNetwork_1_1KServerSocket.html#l1">hostFound</a>();
<a name="l00365"></a>00365
<a name="l00366"></a>00366 <span class="keywordflow">if</span> (d->bindWhenFound)
<a name="l00367"></a>00367 doBind();
<a name="l00368"></a>00368 }
<a name="l00369"></a>00369
<a name="l00370"></a><a class="code" href="classKNetwork_1_1KServerSocket.html#b1">00370</a> <span class="keywordtype">void</span> <a class="code" href="classKNetwork_1_1KServerSocket.html#b1">KServerSocket::copyError</a>()
<a name="l00371"></a>00371 {
<a name="l00372"></a>00372 <a class="code" href="classKNetwork_1_1KSocketBase.html#b3">setError</a>(<a class="code" href="classKNetwork_1_1KSocketBase.html#a10">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KSocketBase.html#a13">error</a>());
<a name="l00373"></a>00373 }
<a name="l00374"></a>00374
<a name="l00375"></a>00375 <span class="keywordtype">bool</span> KServerSocket::doBind()
<a name="l00376"></a>00376 {
<a name="l00377"></a>00377 d->bindWhenFound = <span class="keyword">false</span>;
<a name="l00378"></a>00378 <span class="comment">// loop through the results and bind to the first that works</span>
<a name="l00379"></a>00379
<a name="l00380"></a>00380 <a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#ConstIterator">KResolverResults::ConstIterator</a> it = d->resolverResults.begin();
<a name="l00381"></a>00381 <span class="keywordflow">for</span> ( ; it != d->resolverResults.end(); ++it)
<a name="l00382"></a>00382 <span class="keywordflow">if</span> (<a class="code" href="classKNetwork_1_1KServerSocket.html#a14">bind</a>(*it))
<a name="l00383"></a>00383 {
<a name="l00384"></a>00384 <span class="keywordflow">if</span> (d->listenWhenBound)
<a name="l00385"></a>00385 <span class="keywordflow">return</span> doListen();
<a name="l00386"></a>00386 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00387"></a>00387 }
<a name="l00388"></a>00388 <span class="keywordflow">else</span>
<a name="l00389"></a>00389 <a class="code" href="classKNetwork_1_1KSocketBase.html#a10">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KSocketDevice.html#a7">close</a>(); <span class="comment">// didn't work, try again</span>
<a name="l00390"></a>00390
<a name="l00391"></a>00391 <span class="comment">// failed to bind</span>
<a name="l00392"></a>00392 emit <a class="code" href="classKNetwork_1_1KServerSocket.html#l0">gotError</a>(<a class="code" href="classKNetwork_1_1KSocketBase.html#a13">error</a>());
<a name="l00393"></a>00393 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00394"></a>00394 }
<a name="l00395"></a>00395
<a name="l00396"></a>00396 <span class="keywordtype">bool</span> KServerSocket::doListen()
<a name="l00397"></a>00397 {
<a name="l00398"></a>00398 <span class="keywordflow">if</span> (!<a class="code" href="classKNetwork_1_1KSocketBase.html#a10">socketDevice</a>()-><a class="code" href="classKNetwork_1_1KServerSocket.html#a16">listen</a>(d->backlog))
<a name="l00399"></a>00399 {
<a name="l00400"></a>00400 <a class="code" href="classKNetwork_1_1KServerSocket.html#b1">copyError</a>();
<a name="l00401"></a>00401 emit <a class="code" href="classKNetwork_1_1KServerSocket.html#l0">gotError</a>(<a class="code" href="classKNetwork_1_1KSocketBase.html#a13">error</a>());
<a name="l00402"></a>00402 <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// failed to listen</span>
<a name="l00403"></a>00403 }
<a name="l00404"></a>00404
<a name="l00405"></a>00405 <span class="comment">// set up ready accept signal</span>
<a name="l00406"></a>00406 <a class="codeRef" doxygen="qt.tag:" href="qobject.html#connect">QObject::connect</a>(<a class="code" href="classKNetwork_1_1KSocketBase.html#a10">socketDevice</a>()->readNotifier(), SIGNAL(activated(<span class="keywordtype">int</span>)),
<a name="l00407"></a>00407 <span class="keyword">this</span>, SIGNAL(<a class="code" href="classKNetwork_1_1KServerSocket.html#l4">readyAccept</a>()));
<a name="l00408"></a>00408 d->state = KServerSocketPrivate::Listening;
<a name="l00409"></a>00409 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00410"></a>00410 }
<a name="l00411"></a>00411
<a name="l00412"></a>00412
<a name="l00413"></a>00413 <span class="preprocessor">#include "kserversocket.moc"</span>
</pre></div> </div></div>
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