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<h1>kmessageio.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> This file is part of the KDE games library</span>
<a name="l00003"></a>00003 <span class="comment"> Copyright (C) 2001 Burkhard Lehner (Burkhard.Lehner@gmx.de)</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> This library is free software; you can redistribute it and/or</span>
<a name="l00006"></a>00006 <span class="comment"> modify it under the terms of the GNU Library General Public</span>
<a name="l00007"></a>00007 <span class="comment"> License version 2 as published by the Free Software Foundation.</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
<a name="l00010"></a>00010 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00011"></a>00011 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00012"></a>00012 <span class="comment"> Library General Public License for more details.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment"> You should have received a copy of the GNU Library General Public License</span>
<a name="l00015"></a>00015 <span class="comment"> along with this library; see the file COPYING.LIB. If not, write to</span>
<a name="l00016"></a>00016 <span class="comment"> the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00017"></a>00017 <span class="comment"> Boston, MA 02110-1301, USA.</span>
<a name="l00018"></a>00018 <span class="comment">*/</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="comment">/*</span>
<a name="l00021"></a>00021 <span class="comment"> KMessageIO class and subclasses KMessageSocket and KMessageDirect</span>
<a name="l00022"></a>00022 <span class="comment">*/</span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="preprocessor">#include "kmessageio.h"</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <qsocket.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <kdebug.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <kprocess.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <qfile.h></span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="comment">// ----------------------- KMessageIO -------------------------</span>
<a name="l00031"></a>00031
<a name="l00032"></a><a class="code" href="classKMessageIO.html#f441515cc8006af2190fd8220c260cb8">00032</a> <a class="code" href="classKMessageIO.html#f441515cc8006af2190fd8220c260cb8" title="The usual QObject constructor, does nothing else.">KMessageIO::KMessageIO</a> (QObject *parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00033"></a>00033 : QObject (parent, name), m_id (0)
<a name="l00034"></a>00034 {}
<a name="l00035"></a>00035
<a name="l00036"></a><a class="code" href="classKMessageIO.html#bc96e3cd30d933c9febabceee01b7e04">00036</a> <a class="code" href="classKMessageIO.html#bc96e3cd30d933c9febabceee01b7e04" title="The usual destructor, does nothing special.">KMessageIO::~KMessageIO</a> ()
<a name="l00037"></a>00037 {}
<a name="l00038"></a>00038
<a name="l00039"></a><a class="code" href="classKMessageIO.html#fe28b6039098d66a8aea760990a39049">00039</a> <span class="keywordtype">void</span> <a class="code" href="classKMessageIO.html#fe28b6039098d66a8aea760990a39049" title="Sets the ID number of this object.">KMessageIO::setId</a> (Q_UINT32 <span class="keywordtype">id</span>)
<a name="l00040"></a>00040 {
<a name="l00041"></a>00041 m_id = id;
<a name="l00042"></a>00042 }
<a name="l00043"></a>00043
<a name="l00044"></a><a class="code" href="classKMessageIO.html#8ddc66bc4a2178ba1bcd447056c734a3">00044</a> Q_UINT32 <a class="code" href="classKMessageIO.html#8ddc66bc4a2178ba1bcd447056c734a3" title="Queries the ID of this object.">KMessageIO::id</a> ()
<a name="l00045"></a>00045 {
<a name="l00046"></a>00046 <span class="keywordflow">return</span> m_id;
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="comment">// ----------------------KMessageSocket -----------------------</span>
<a name="l00050"></a>00050
<a name="l00051"></a><a class="code" href="classKMessageSocket.html#d8064d3e0d79fef411f82a2f04cbb6d4">00051</a> <a class="code" href="classKMessageSocket.html#d8064d3e0d79fef411f82a2f04cbb6d4" title="Connects to a server socket on /e host with /e port.">KMessageSocket::KMessageSocket</a> (QString host, Q_UINT16 port, QObject *parent,
<a name="l00052"></a>00052 <span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00053"></a>00053 : <a class="code" href="classKMessageIO.html" title="This abstract base class represents one end of a message connections between two...">KMessageIO</a> (parent, name)
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 mSocket = <span class="keyword">new</span> QSocket ();
<a name="l00056"></a>00056 mSocket->connectToHost (host, port);
<a name="l00057"></a>00057 initSocket ();
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059
<a name="l00060"></a><a class="code" href="classKMessageSocket.html#3861a29bd3e21756bf162b2e457f7184">00060</a> <a class="code" href="classKMessageSocket.html#d8064d3e0d79fef411f82a2f04cbb6d4" title="Connects to a server socket on /e host with /e port.">KMessageSocket::KMessageSocket</a> (QHostAddress host, Q_UINT16 port, QObject
<a name="l00061"></a>00061 *parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00062"></a>00062 : <a class="code" href="classKMessageIO.html" title="This abstract base class represents one end of a message connections between two...">KMessageIO</a> (parent, name)
<a name="l00063"></a>00063 {
<a name="l00064"></a>00064 mSocket = <span class="keyword">new</span> QSocket ();
<a name="l00065"></a>00065 mSocket->connectToHost (host.toString(), port);
<a name="l00066"></a>00066 initSocket ();
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068
<a name="l00069"></a><a class="code" href="classKMessageSocket.html#569c7d187cb5618b5c030499bf76cf1f">00069</a> <a class="code" href="classKMessageSocket.html#d8064d3e0d79fef411f82a2f04cbb6d4" title="Connects to a server socket on /e host with /e port.">KMessageSocket::KMessageSocket</a> (QSocket *socket, QObject *parent, <span class="keyword">const</span> <span class="keywordtype">char</span>
<a name="l00070"></a>00070 *name)
<a name="l00071"></a>00071 : <a class="code" href="classKMessageIO.html" title="This abstract base class represents one end of a message connections between two...">KMessageIO</a> (parent, name)
<a name="l00072"></a>00072 {
<a name="l00073"></a>00073 mSocket = socket;
<a name="l00074"></a>00074 initSocket ();
<a name="l00075"></a>00075 }
<a name="l00076"></a>00076
<a name="l00077"></a><a class="code" href="classKMessageSocket.html#e1c91692a48e7cd8fbf7553fe75531cd">00077</a> <a class="code" href="classKMessageSocket.html#d8064d3e0d79fef411f82a2f04cbb6d4" title="Connects to a server socket on /e host with /e port.">KMessageSocket::KMessageSocket</a> (<span class="keywordtype">int</span> socketFD, QObject *parent, <span class="keyword">const</span> <span class="keywordtype">char</span>
<a name="l00078"></a>00078 *name)
<a name="l00079"></a>00079 : <a class="code" href="classKMessageIO.html" title="This abstract base class represents one end of a message connections between two...">KMessageIO</a> (parent, name)
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 mSocket = <span class="keyword">new</span> QSocket ();
<a name="l00082"></a>00082 mSocket->setSocket (socketFD);
<a name="l00083"></a>00083 initSocket ();
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085
<a name="l00086"></a><a class="code" href="classKMessageSocket.html#9b17b632ca342a233206923d1bbd4464">00086</a> <a class="code" href="classKMessageSocket.html#9b17b632ca342a233206923d1bbd4464" title="Destructor, closes the socket.">KMessageSocket::~KMessageSocket</a> ()
<a name="l00087"></a>00087 {
<a name="l00088"></a>00088 <span class="keyword">delete</span> mSocket;
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a><a class="code" href="classKMessageSocket.html#3bb9822c6a03b372a82a24610e70d84a">00091</a> <span class="keywordtype">bool</span> <a class="code" href="classKMessageSocket.html#3bb9822c6a03b372a82a24610e70d84a" title="Returns true if the socket is in state /e connected.">KMessageSocket::isConnected</a> ()<span class="keyword"> const</span>
<a name="l00092"></a>00092 <span class="keyword"></span>{
<a name="l00093"></a>00093 <span class="keywordflow">return</span> mSocket->state() == QSocket::Connection;
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095
<a name="l00096"></a><a class="code" href="classKMessageSocket.html#325a64653cd9a62b34fb10e4eb72a4ff">00096</a> <span class="keywordtype">void</span> <a class="code" href="classKMessageSocket.html#325a64653cd9a62b34fb10e4eb72a4ff" title="Overwritten slot method from KMessageIO.">KMessageSocket::send</a> (<span class="keyword">const</span> QByteArray &msg)
<a name="l00097"></a>00097 {
<a name="l00098"></a>00098 QDataStream str (mSocket);
<a name="l00099"></a>00099 str << Q_UINT8 (<span class="charliteral">'M'</span>); <span class="comment">// magic number for begin of message</span>
<a name="l00100"></a>00100 str.writeBytes (msg.data(), msg.size()); <span class="comment">// writes the length (as Q_UINT32) and the data</span>
<a name="l00101"></a>00101 }
<a name="l00102"></a>00102
<a name="l00103"></a>00103 <span class="keywordtype">void</span> KMessageSocket::processNewData ()
<a name="l00104"></a>00104 {
<a name="l00105"></a>00105 <span class="keywordflow">if</span> (isRecursive)
<a name="l00106"></a>00106 <span class="keywordflow">return</span>;
<a name="l00107"></a>00107 isRecursive = <span class="keyword">true</span>;
<a name="l00108"></a>00108
<a name="l00109"></a>00109 QDataStream str (mSocket);
<a name="l00110"></a>00110 <span class="keywordflow">while</span> (mSocket->bytesAvailable() > 0)
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112 <span class="keywordflow">if</span> (mAwaitingHeader)
<a name="l00113"></a>00113 {
<a name="l00114"></a>00114 <span class="comment">// Header = magic number + packet length = 5 bytes</span>
<a name="l00115"></a>00115 <span class="keywordflow">if</span> (mSocket->bytesAvailable() < 5)
<a name="l00116"></a>00116 {
<a name="l00117"></a>00117 isRecursive = <span class="keyword">false</span>;
<a name="l00118"></a>00118 <span class="keywordflow">return</span>;
<a name="l00119"></a>00119 }
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <span class="comment">// Read the magic number first. If something unexpected is found,</span>
<a name="l00122"></a>00122 <span class="comment">// start over again, ignoring the data that was read up to then.</span>
<a name="l00123"></a>00123
<a name="l00124"></a>00124 Q_UINT8 v;
<a name="l00125"></a>00125 str >> v;
<a name="l00126"></a>00126 <span class="keywordflow">if</span> (v != <span class="charliteral">'M'</span>)
<a name="l00127"></a>00127 {
<a name="l00128"></a>00128 kdWarning(11001) << k_funcinfo << <span class="stringliteral">": Received unexpected data, magic number wrong!"</span> << endl;
<a name="l00129"></a>00129 <span class="keywordflow">continue</span>;
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131
<a name="l00132"></a>00132 str >> mNextBlockLength;
<a name="l00133"></a>00133 mAwaitingHeader = <span class="keyword">false</span>;
<a name="l00134"></a>00134 }
<a name="l00135"></a>00135 <span class="keywordflow">else</span>
<a name="l00136"></a>00136 {
<a name="l00137"></a>00137 <span class="comment">// Data not completely read => wait for more</span>
<a name="l00138"></a>00138 <span class="keywordflow">if</span> (mSocket->bytesAvailable() < (Q_ULONG) mNextBlockLength)
<a name="l00139"></a>00139 {
<a name="l00140"></a>00140 isRecursive = <span class="keyword">false</span>;
<a name="l00141"></a>00141 <span class="keywordflow">return</span>;
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143
<a name="l00144"></a>00144 QByteArray msg (mNextBlockLength);
<a name="l00145"></a>00145 str.readRawBytes (msg.data(), mNextBlockLength);
<a name="l00146"></a>00146
<a name="l00147"></a>00147 <span class="comment">// send the received message</span>
<a name="l00148"></a>00148 emit <a class="code" href="classKMessageIO.html#c2925ec4f163a91f15b037dcd9dc93a2" title="This signal is emitted when /e send() on the connected KMessageIO object is called...">received</a> (msg);
<a name="l00149"></a>00149
<a name="l00150"></a>00150 <span class="comment">// Waiting for the header of the next message</span>
<a name="l00151"></a>00151 mAwaitingHeader = <span class="keyword">true</span>;
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154
<a name="l00155"></a>00155 isRecursive = <span class="keyword">false</span>;
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="keywordtype">void</span> KMessageSocket::initSocket ()
<a name="l00159"></a>00159 {
<a name="l00160"></a>00160 connect (mSocket, SIGNAL (error(<span class="keywordtype">int</span>)), SIGNAL (<a class="code" href="classKMessageIO.html#84d97fb77fbd43ea40baa2eec1f45ec5" title="This signal is emitted when the connection is closed.">connectionBroken</a>()));
<a name="l00161"></a>00161 connect (mSocket, SIGNAL (connectionClosed()), SIGNAL (<a class="code" href="classKMessageIO.html#84d97fb77fbd43ea40baa2eec1f45ec5" title="This signal is emitted when the connection is closed.">connectionBroken</a>()));
<a name="l00162"></a>00162 connect (mSocket, SIGNAL (readyRead()), SLOT (processNewData()));
<a name="l00163"></a>00163 mAwaitingHeader = <span class="keyword">true</span>;
<a name="l00164"></a>00164 mNextBlockLength = 0;
<a name="l00165"></a>00165 isRecursive = <span class="keyword">false</span>;
<a name="l00166"></a>00166 }
<a name="l00167"></a>00167
<a name="l00168"></a><a class="code" href="classKMessageSocket.html#4973e0515fa5c8b5e89672c1a46dde2f">00168</a> Q_UINT16 <a class="code" href="classKMessageSocket.html#4973e0515fa5c8b5e89672c1a46dde2f">KMessageSocket::peerPort</a> ()<span class="keyword"> const</span>
<a name="l00169"></a>00169 <span class="keyword"></span>{
<a name="l00170"></a>00170 <span class="keywordflow">return</span> mSocket->peerPort();
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172
<a name="l00173"></a><a class="code" href="classKMessageSocket.html#37509479743000c80e9c8cf062e3a496">00173</a> QString <a class="code" href="classKMessageSocket.html#37509479743000c80e9c8cf062e3a496">KMessageSocket::peerName</a> ()<span class="keyword"> const</span>
<a name="l00174"></a>00174 <span class="keyword"></span>{
<a name="l00175"></a>00175 <span class="keywordflow">return</span> mSocket->peerName();
<a name="l00176"></a>00176 }
<a name="l00177"></a>00177
<a name="l00178"></a>00178 <span class="comment">// ----------------------KMessageDirect -----------------------</span>
<a name="l00179"></a>00179
<a name="l00180"></a><a class="code" href="classKMessageDirect.html#26b8990db45f3084e9267623f1aa25c7">00180</a> <a class="code" href="classKMessageDirect.html#26b8990db45f3084e9267623f1aa25c7" title="Creates an object and connects it to the object given in the first parameter.">KMessageDirect::KMessageDirect</a> (<a class="code" href="classKMessageDirect.html" title="This class implements the message communication using function calls directly.">KMessageDirect</a> *partner, QObject *parent,
<a name="l00181"></a>00181 <span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00182"></a>00182 : <a class="code" href="classKMessageIO.html" title="This abstract base class represents one end of a message connections between two...">KMessageIO</a> (parent, name), mPartner (0)
<a name="l00183"></a>00183 {
<a name="l00184"></a>00184 <span class="comment">// 0 as first parameter leaves the object unconnected</span>
<a name="l00185"></a>00185 <span class="keywordflow">if</span> (!partner)
<a name="l00186"></a>00186 <span class="keywordflow">return</span>;
<a name="l00187"></a>00187
<a name="l00188"></a>00188 <span class="comment">// Check if the other object is already connected</span>
<a name="l00189"></a>00189 <span class="keywordflow">if</span> (partner && partner-><a class="code" href="classKMessageDirect.html#3e567970116c0d990a2a6ee19b195a6f">mPartner</a>)
<a name="l00190"></a>00190 {
<a name="l00191"></a>00191 kdWarning(11001) << k_funcinfo << <span class="stringliteral">": Object is already connected!"</span> << endl;
<a name="l00192"></a>00192 <span class="keywordflow">return</span>;
<a name="l00193"></a>00193 }
<a name="l00194"></a>00194
<a name="l00195"></a>00195 <span class="comment">// Connect from us to that object</span>
<a name="l00196"></a>00196 mPartner = partner;
<a name="l00197"></a>00197
<a name="l00198"></a>00198 <span class="comment">// Connect the other object to us</span>
<a name="l00199"></a>00199 partner-><a class="code" href="classKMessageDirect.html#3e567970116c0d990a2a6ee19b195a6f">mPartner</a> = <span class="keyword">this</span>;
<a name="l00200"></a>00200 }
<a name="l00201"></a>00201
<a name="l00202"></a><a class="code" href="classKMessageDirect.html#2a7d37f0e955dd40ef35dcb2e13cbff4">00202</a> <a class="code" href="classKMessageDirect.html#2a7d37f0e955dd40ef35dcb2e13cbff4" title="Destructor, closes the connection.">KMessageDirect::~KMessageDirect</a> ()
<a name="l00203"></a>00203 {
<a name="l00204"></a>00204 <span class="keywordflow">if</span> (mPartner)
<a name="l00205"></a>00205 {
<a name="l00206"></a>00206 mPartner-><a class="code" href="classKMessageDirect.html#3e567970116c0d990a2a6ee19b195a6f">mPartner</a> = 0;
<a name="l00207"></a>00207 emit mPartner-><a class="code" href="classKMessageIO.html#84d97fb77fbd43ea40baa2eec1f45ec5" title="This signal is emitted when the connection is closed.">connectionBroken</a>();
<a name="l00208"></a>00208 }
<a name="l00209"></a>00209 }
<a name="l00210"></a>00210
<a name="l00211"></a><a class="code" href="classKMessageDirect.html#e1a47b43f8cda3f8363491a795c6197b">00211</a> <span class="keywordtype">bool</span> <a class="code" href="classKMessageDirect.html#e1a47b43f8cda3f8363491a795c6197b" title="Returns true, if the object is connected to another instance.">KMessageDirect::isConnected</a> ()<span class="keyword"> const</span>
<a name="l00212"></a>00212 <span class="keyword"></span>{
<a name="l00213"></a>00213 <span class="keywordflow">return</span> mPartner != 0;
<a name="l00214"></a>00214 }
<a name="l00215"></a>00215
<a name="l00216"></a><a class="code" href="classKMessageDirect.html#ac1022521f741c07ec93db28c5cdd09b">00216</a> <span class="keywordtype">void</span> <a class="code" href="classKMessageDirect.html#ac1022521f741c07ec93db28c5cdd09b" title="Overwritten slot method from KMessageIO.">KMessageDirect::send</a> (<span class="keyword">const</span> QByteArray &msg)
<a name="l00217"></a>00217 {
<a name="l00218"></a>00218 <span class="keywordflow">if</span> (mPartner)
<a name="l00219"></a>00219 emit mPartner-><a class="code" href="classKMessageIO.html#c2925ec4f163a91f15b037dcd9dc93a2" title="This signal is emitted when /e send() on the connected KMessageIO object is called...">received</a> (msg);
<a name="l00220"></a>00220 <span class="keywordflow">else</span>
<a name="l00221"></a>00221 kdError(11001) << k_funcinfo << <span class="stringliteral">": Not yet connected!"</span> << endl;
<a name="l00222"></a>00222 }
<a name="l00223"></a>00223
<a name="l00224"></a>00224
<a name="l00225"></a>00225 <span class="comment">// ----------------------- KMessageProcess ---------------------------</span>
<a name="l00226"></a>00226
<a name="l00227"></a>00227 KMessageProcess::~KMessageProcess()
<a name="l00228"></a>00228 {
<a name="l00229"></a>00229 kdDebug(11001) << <span class="stringliteral">"@@@KMessageProcess::Delete process"</span> << endl;
<a name="l00230"></a>00230 <span class="keywordflow">if</span> (mProcess)
<a name="l00231"></a>00231 {
<a name="l00232"></a>00232 mProcess->kill();
<a name="l00233"></a>00233 <span class="keyword">delete</span> mProcess;
<a name="l00234"></a>00234 mProcess=0;
<a name="l00235"></a>00235 <span class="comment">// Remove not send buffers</span>
<a name="l00236"></a>00236 mQueue.setAutoDelete(<span class="keyword">true</span>);
<a name="l00237"></a>00237 mQueue.clear();
<a name="l00238"></a>00238 <span class="comment">// Maybe todo: delete mSendBuffer</span>
<a name="l00239"></a>00239 }
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241 KMessageProcess::KMessageProcess(QObject *parent, QString file) : <a class="code" href="classKMessageIO.html" title="This abstract base class represents one end of a message connections between two...">KMessageIO</a>(parent,0)
<a name="l00242"></a>00242 {
<a name="l00243"></a>00243 <span class="comment">// Start process</span>
<a name="l00244"></a>00244 kdDebug(11001) << <span class="stringliteral">"@@@KMessageProcess::Start process"</span> << endl;
<a name="l00245"></a>00245 mProcessName=file;
<a name="l00246"></a>00246 mProcess=<span class="keyword">new</span> KProcess;
<a name="l00247"></a>00247 <span class="keywordtype">int</span> <span class="keywordtype">id</span>=0;
<a name="l00248"></a>00248 *mProcess << mProcessName << QString(<span class="stringliteral">"%1"</span>).arg(<span class="keywordtype">id</span>);
<a name="l00249"></a>00249 kdDebug(11001) << <span class="stringliteral">"@@@KMessageProcess::Init:Id= "</span> << <span class="keywordtype">id</span> << endl;
<a name="l00250"></a>00250 kdDebug(11001) << <span class="stringliteral">"@@@KMessgeProcess::Init:Processname: "</span> << mProcessName << endl;
<a name="l00251"></a>00251 connect(mProcess, SIGNAL(receivedStdout(KProcess *, <span class="keywordtype">char</span> *, <span class="keywordtype">int</span> )),
<a name="l00252"></a>00252 <span class="keyword">this</span>, SLOT(slotReceivedStdout(KProcess *, <span class="keywordtype">char</span> * , <span class="keywordtype">int</span> )));
<a name="l00253"></a>00253 connect(mProcess, SIGNAL(receivedStderr(KProcess *, <span class="keywordtype">char</span> *, <span class="keywordtype">int</span> )),
<a name="l00254"></a>00254 <span class="keyword">this</span>, SLOT(slotReceivedStderr(KProcess *, <span class="keywordtype">char</span> * , <span class="keywordtype">int</span> )));
<a name="l00255"></a>00255 connect(mProcess, SIGNAL(processExited(KProcess *)),
<a name="l00256"></a>00256 <span class="keyword">this</span>, SLOT(slotProcessExited(KProcess *)));
<a name="l00257"></a>00257 connect(mProcess, SIGNAL(wroteStdin(KProcess *)),
<a name="l00258"></a>00258 <span class="keyword">this</span>, SLOT(slotWroteStdin(KProcess *)));
<a name="l00259"></a>00259 mProcess->start(KProcess::NotifyOnExit,KProcess::All);
<a name="l00260"></a>00260 mSendBuffer=0;
<a name="l00261"></a>00261 mReceiveCount=0;
<a name="l00262"></a>00262 mReceiveBuffer.resize(1024);
<a name="l00263"></a>00263 }
<a name="l00264"></a>00264 <span class="keywordtype">bool</span> KMessageProcess::isConnected()<span class="keyword"> const</span>
<a name="l00265"></a>00265 <span class="keyword"></span>{
<a name="l00266"></a>00266 kdDebug(11001) << <span class="stringliteral">"@@@KMessageProcess::Is conencted"</span> << endl;
<a name="l00267"></a>00267 <span class="keywordflow">if</span> (!mProcess) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00268"></a>00268 <span class="keywordflow">return</span> mProcess->isRunning();
<a name="l00269"></a>00269 }
<a name="l00270"></a>00270 <span class="keywordtype">void</span> KMessageProcess::send(<span class="keyword">const</span> QByteArray &msg)
<a name="l00271"></a>00271 {
<a name="l00272"></a>00272 kdDebug(11001) << <span class="stringliteral">"@@@KMessageProcess:: SEND("</span><<msg.size()<<<span class="stringliteral">") to process"</span> << endl;
<a name="l00273"></a>00273 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size=msg.size()+2*<span class="keyword">sizeof</span>(long);
<a name="l00274"></a>00274
<a name="l00275"></a>00275 <span class="keywordtype">char</span> *tmpbuffer=<span class="keyword">new</span> <span class="keywordtype">char</span>[size];
<a name="l00276"></a>00276 <span class="keywordtype">long</span> *p1=(<span class="keywordtype">long</span> *)tmpbuffer;
<a name="l00277"></a>00277 <span class="keywordtype">long</span> *p2=p1+1;
<a name="l00278"></a>00278 kdDebug(11001) << <span class="stringliteral">"p1="</span><<p1 << <span class="stringliteral">"p2="</span><< p2 << endl;
<a name="l00279"></a>00279 memcpy(tmpbuffer+2*<span class="keyword">sizeof</span>(<span class="keywordtype">long</span>),msg.data(),msg.size());
<a name="l00280"></a>00280 *p1=0x4242aeae;
<a name="l00281"></a>00281 *p2=size;
<a name="l00282"></a>00282
<a name="l00283"></a>00283 QByteArray *buffer=<span class="keyword">new</span> QByteArray();
<a name="l00284"></a>00284 buffer->assign(tmpbuffer,size);
<a name="l00285"></a>00285 <span class="comment">// buffer->duplicate(msg);</span>
<a name="l00286"></a>00286 mQueue.enqueue(buffer);
<a name="l00287"></a>00287 writeToProcess();
<a name="l00288"></a>00288 }
<a name="l00289"></a>00289 <span class="keywordtype">void</span> KMessageProcess::writeToProcess()
<a name="l00290"></a>00290 {
<a name="l00291"></a>00291 <span class="comment">// Previous send ok and item in queue</span>
<a name="l00292"></a>00292 <span class="keywordflow">if</span> (mSendBuffer || mQueue.isEmpty()) <span class="keywordflow">return</span> ;
<a name="l00293"></a>00293 mSendBuffer=mQueue.dequeue();
<a name="l00294"></a>00294 <span class="keywordflow">if</span> (!mSendBuffer) return ;
<a name="l00295"></a>00295
<a name="l00296"></a>00296 <span class="comment">// write it out to the process</span>
<a name="l00297"></a>00297 <span class="comment">// kdDebug(11001) << " @@@@@@ writeToProcess::SEND to process " << mSendBuffer->size() << " BYTE " << endl;</span>
<a name="l00298"></a>00298 <span class="comment">// char *p=mSendBuffer->data();</span>
<a name="l00299"></a>00299 <span class="comment">// for (int i=0;i<16;i++) printf("%02x ",(unsigned char)(*(p+i)));printf("\n");</span>
<a name="l00300"></a>00300 mProcess->writeStdin(mSendBuffer->data(),mSendBuffer->size());
<a name="l00301"></a>00301
<a name="l00302"></a>00302 }
<a name="l00303"></a>00303 <span class="keywordtype">void</span> KMessageProcess::slotWroteStdin(KProcess * )
<a name="l00304"></a>00304 {
<a name="l00305"></a>00305 kdDebug(11001) << k_funcinfo << endl;
<a name="l00306"></a>00306 <span class="keywordflow">if</span> (mSendBuffer)
<a name="l00307"></a>00307 {
<a name="l00308"></a>00308 <span class="keyword">delete</span> mSendBuffer;
<a name="l00309"></a>00309 mSendBuffer=0;
<a name="l00310"></a>00310 }
<a name="l00311"></a>00311 writeToProcess();
<a name="l00312"></a>00312 }
<a name="l00313"></a>00313
<a name="l00314"></a>00314 <span class="keywordtype">void</span> KMessageProcess::slotReceivedStderr(KProcess * proc, <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> buflen)
<a name="l00315"></a>00315 {
<a name="l00316"></a>00316 <span class="keywordtype">int</span> pid=0;
<a name="l00317"></a>00317 <span class="keywordtype">int</span> len;
<a name="l00318"></a>00318 <span class="keywordtype">char</span> *p;
<a name="l00319"></a>00319 <span class="keywordtype">char</span> *pos;
<a name="l00320"></a>00320 <span class="comment">// kdDebug(11001)<<"############# Got stderr " << buflen << " bytes" << endl;</span>
<a name="l00321"></a>00321
<a name="l00322"></a>00322 <span class="keywordflow">if</span> (!buffer || buflen==0) return ;
<a name="l00323"></a>00323 <span class="keywordflow">if</span> (proc) pid=proc->pid();
<a name="l00324"></a>00324
<a name="l00325"></a>00325
<a name="l00326"></a>00326 pos=buffer;
<a name="l00327"></a>00327 <span class="keywordflow">do</span>
<a name="l00328"></a>00328 {
<a name="l00329"></a>00329 p=(<span class="keywordtype">char</span> *)memchr(pos,<span class="charliteral">'\n'</span>,buflen);
<a name="l00330"></a>00330 <span class="keywordflow">if</span> (!p) len=buflen;
<a name="l00331"></a>00331 <span class="keywordflow">else</span> len=p-pos;
<a name="l00332"></a>00332
<a name="l00333"></a>00333 QByteArray a;
<a name="l00334"></a>00334 a.setRawData(pos,len);
<a name="l00335"></a>00335 QString s(a);
<a name="l00336"></a>00336 kdDebug(11001) << <span class="stringliteral">"PID"</span> <<pid<< <span class="stringliteral">":"</span> << s << endl;
<a name="l00337"></a>00337 a.resetRawData(pos,len);
<a name="l00338"></a>00338 <span class="keywordflow">if</span> (p) pos=p+1;
<a name="l00339"></a>00339 buflen-=len+1;
<a name="l00340"></a>00340 }<span class="keywordflow">while</span>(buflen>0);
<a name="l00341"></a>00341 }
<a name="l00342"></a>00342
<a name="l00343"></a>00343
<a name="l00344"></a>00344 <span class="keywordtype">void</span> KMessageProcess::slotReceivedStdout(KProcess * , <span class="keywordtype">char</span> *buffer, <span class="keywordtype">int</span> buflen)
<a name="l00345"></a>00345 {
<a name="l00346"></a>00346 kdDebug(11001) << <span class="stringliteral">"$$$$$$ "</span> << k_funcinfo << <span class="stringliteral">": Received "</span> << buflen << <span class="stringliteral">" bytes over inter process communication"</span> << endl;
<a name="l00347"></a>00347
<a name="l00348"></a>00348 <span class="comment">// TODO Make a plausibility check on buflen to avoid memory overflow</span>
<a name="l00349"></a>00349 <span class="keywordflow">while</span> (mReceiveCount+buflen>=mReceiveBuffer.size()) mReceiveBuffer.resize(mReceiveBuffer.size()+1024);
<a name="l00350"></a>00350 memcpy(mReceiveBuffer.data()+mReceiveCount,buffer,buflen);
<a name="l00351"></a>00351 mReceiveCount+=buflen;
<a name="l00352"></a>00352
<a name="l00353"></a>00353 <span class="comment">// Possbile message</span>
<a name="l00354"></a>00354 <span class="keywordflow">while</span> (mReceiveCount>2*<span class="keyword">sizeof</span>(<span class="keywordtype">long</span>))
<a name="l00355"></a>00355 {
<a name="l00356"></a>00356 <span class="keywordtype">long</span> *p1=(<span class="keywordtype">long</span> *)mReceiveBuffer.data();
<a name="l00357"></a>00357 <span class="keywordtype">long</span> *p2=p1+1;
<a name="l00358"></a>00358 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> len;
<a name="l00359"></a>00359 <span class="keywordflow">if</span> (*p1!=0x4242aeae)
<a name="l00360"></a>00360 {
<a name="l00361"></a>00361 kdDebug(11001) << k_funcinfo << <span class="stringliteral">": Cookie error...transmission failure...serious problem..."</span> << endl;
<a name="l00362"></a>00362 <span class="comment">// for (int i=0;i<mReceiveCount;i++) fprintf(stderr,"%02x ",mReceiveBuffer[i]);fprintf(stderr,"\n");</span>
<a name="l00363"></a>00363 }
<a name="l00364"></a>00364 len=(int)(*p2);
<a name="l00365"></a>00365 <span class="keywordflow">if</span> (len<2*<span class="keyword">sizeof</span>(<span class="keywordtype">long</span>))
<a name="l00366"></a>00366 {
<a name="l00367"></a>00367 kdDebug(11001) << k_funcinfo << <span class="stringliteral">": Message size error"</span> << endl;
<a name="l00368"></a>00368 <span class="keywordflow">break</span>;
<a name="l00369"></a>00369 }
<a name="l00370"></a>00370 <span class="keywordflow">if</span> (len<=mReceiveCount)
<a name="l00371"></a>00371 {
<a name="l00372"></a>00372 kdDebug(11001) << k_funcinfo << <span class="stringliteral">": Got message with len "</span> << len << endl;
<a name="l00373"></a>00373
<a name="l00374"></a>00374 QByteArray msg;
<a name="l00375"></a>00375 <span class="comment">// msg.setRawData(mReceiveBuffer.data()+2*sizeof(long),len-2*sizeof(long));</span>
<a name="l00376"></a>00376 msg.duplicate(mReceiveBuffer.data()+2*<span class="keyword">sizeof</span>(long),len-2*<span class="keyword">sizeof</span>(<span class="keywordtype">long</span>));
<a name="l00377"></a>00377 emit <a class="code" href="classKMessageIO.html#c2925ec4f163a91f15b037dcd9dc93a2" title="This signal is emitted when /e send() on the connected KMessageIO object is called...">received</a>(msg);
<a name="l00378"></a>00378 <span class="comment">// msg.resetRawData(mReceiveBuffer.data()+2*sizeof(long),len-2*sizeof(long));</span>
<a name="l00379"></a>00379 <span class="comment">// Shift buffer</span>
<a name="l00380"></a>00380 <span class="keywordflow">if</span> (len<mReceiveCount)
<a name="l00381"></a>00381 {
<a name="l00382"></a>00382 memmove(mReceiveBuffer.data(),mReceiveBuffer.data()+len,mReceiveCount-len);
<a name="l00383"></a>00383 }
<a name="l00384"></a>00384 mReceiveCount-=len;
<a name="l00385"></a>00385 }
<a name="l00386"></a>00386 <span class="keywordflow">else</span> <span class="keywordflow">break</span>;
<a name="l00387"></a>00387 }
<a name="l00388"></a>00388 }
<a name="l00389"></a>00389
<a name="l00390"></a>00390 <span class="keywordtype">void</span> KMessageProcess::slotProcessExited(KProcess * <span class="comment">/*p*/</span>)
<a name="l00391"></a>00391 {
<a name="l00392"></a>00392 kdDebug(11001) << <span class="stringliteral">"Process exited (slot)"</span> << endl;
<a name="l00393"></a>00393 emit <a class="code" href="classKMessageIO.html#84d97fb77fbd43ea40baa2eec1f45ec5" title="This signal is emitted when the connection is closed.">connectionBroken</a>();
<a name="l00394"></a>00394 <span class="keyword">delete</span> mProcess;
<a name="l00395"></a>00395 mProcess=0;
<a name="l00396"></a>00396 }
<a name="l00397"></a>00397
<a name="l00398"></a>00398
<a name="l00399"></a>00399 <span class="comment">// ----------------------- KMessageFilePipe ---------------------------</span>
<a name="l00400"></a>00400 KMessageFilePipe::KMessageFilePipe(QObject *parent,QFile *readfile,QFile *writefile) : <a class="code" href="classKMessageIO.html" title="This abstract base class represents one end of a message connections between two...">KMessageIO</a>(parent,0)
<a name="l00401"></a>00401 {
<a name="l00402"></a>00402 mReadFile=readfile;
<a name="l00403"></a>00403 mWriteFile=writefile;
<a name="l00404"></a>00404 mReceiveCount=0;
<a name="l00405"></a>00405 mReceiveBuffer.resize(1024);
<a name="l00406"></a>00406 }
<a name="l00407"></a>00407
<a name="l00408"></a>00408 KMessageFilePipe::~KMessageFilePipe()
<a name="l00409"></a>00409 {
<a name="l00410"></a>00410 }
<a name="l00411"></a>00411
<a name="l00412"></a>00412 <span class="keywordtype">bool</span> KMessageFilePipe::isConnected ()<span class="keyword"> const</span>
<a name="l00413"></a>00413 <span class="keyword"></span>{
<a name="l00414"></a>00414 <span class="keywordflow">return</span> (mReadFile!=0)&&(mWriteFile!=0);
<a name="l00415"></a>00415 }
<a name="l00416"></a>00416
<a name="l00417"></a>00417 <span class="keywordtype">void</span> KMessageFilePipe::send(<span class="keyword">const</span> QByteArray &msg)
<a name="l00418"></a>00418 {
<a name="l00419"></a>00419 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size=msg.size()+2*<span class="keyword">sizeof</span>(long);
<a name="l00420"></a>00420
<a name="l00421"></a>00421 <span class="keywordtype">char</span> *tmpbuffer=<span class="keyword">new</span> <span class="keywordtype">char</span>[size];
<a name="l00422"></a>00422 <span class="keywordtype">long</span> *p1=(<span class="keywordtype">long</span> *)tmpbuffer;
<a name="l00423"></a>00423 <span class="keywordtype">long</span> *p2=p1+1;
<a name="l00424"></a>00424 memcpy(tmpbuffer+2*<span class="keyword">sizeof</span>(<span class="keywordtype">long</span>),msg.data(),msg.size());
<a name="l00425"></a>00425 *p1=0x4242aeae;
<a name="l00426"></a>00426 *p2=size;
<a name="l00427"></a>00427
<a name="l00428"></a>00428 QByteArray buffer;
<a name="l00429"></a>00429 buffer.assign(tmpbuffer,size);
<a name="l00430"></a>00430 mWriteFile->writeBlock(buffer);
<a name="l00431"></a>00431 mWriteFile->flush();
<a name="l00432"></a>00432 <span class="comment">/*</span>
<a name="l00433"></a>00433 <span class="comment"> fprintf(stderr,"+++ KMessageFilePipe:: SEND(%d to parent) realsize=%d\n",msg.size(),buffer.size());</span>
<a name="l00434"></a>00434 <span class="comment"> for (int i=0;i<buffer.size();i++) fprintf(stderr,"%02x ",buffer[i]);fprintf(stderr,"\n");</span>
<a name="l00435"></a>00435 <span class="comment"> fflush(stderr);</span>
<a name="l00436"></a>00436 <span class="comment"> */</span>
<a name="l00437"></a>00437 }
<a name="l00438"></a>00438
<a name="l00439"></a>00439 <span class="keywordtype">void</span> KMessageFilePipe::exec()
<a name="l00440"></a>00440 {
<a name="l00441"></a>00441
<a name="l00442"></a>00442 <span class="comment">// According to BL: Blocking read is ok</span>
<a name="l00443"></a>00443 <span class="comment">// while(mReadFile->atEnd()) { usleep(100); }</span>
<a name="l00444"></a>00444
<a name="l00445"></a>00445 <span class="keywordtype">int</span> ch=mReadFile->getch();
<a name="l00446"></a>00446
<a name="l00447"></a>00447 <span class="keywordflow">while</span> (mReceiveCount>=mReceiveBuffer.size()) mReceiveBuffer.resize(mReceiveBuffer.size()+1024);
<a name="l00448"></a>00448 mReceiveBuffer[mReceiveCount]=(char)ch;
<a name="l00449"></a>00449 mReceiveCount++;
<a name="l00450"></a>00450
<a name="l00451"></a>00451 <span class="comment">// Change for message </span>
<a name="l00452"></a>00452 <span class="keywordflow">if</span> (mReceiveCount>=2*<span class="keyword">sizeof</span>(<span class="keywordtype">long</span>))
<a name="l00453"></a>00453 {
<a name="l00454"></a>00454 <span class="keywordtype">long</span> *p1=(<span class="keywordtype">long</span> *)mReceiveBuffer.data();
<a name="l00455"></a>00455 <span class="keywordtype">long</span> *p2=p1+1;
<a name="l00456"></a>00456 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> len;
<a name="l00457"></a>00457 <span class="keywordflow">if</span> (*p1!=0x4242aeae)
<a name="l00458"></a>00458 {
<a name="l00459"></a>00459 fprintf(stderr,<span class="stringliteral">"KMessageFilePipe::exec:: Cookie error...transmission failure...serious problem...\n"</span>);
<a name="l00460"></a>00460 <span class="comment">// for (int i=0;i<16;i++) fprintf(stderr,"%02x ",mReceiveBuffer[i]);fprintf(stderr,"\n");</span>
<a name="l00461"></a>00461 }
<a name="l00462"></a>00462 len=(int)(*p2);
<a name="l00463"></a>00463 <span class="keywordflow">if</span> (len==mReceiveCount)
<a name="l00464"></a>00464 {
<a name="l00465"></a>00465 <span class="comment">//fprintf(stderr,"KMessageFilePipe::exec:: Got Message with len %d\n",len);</span>
<a name="l00466"></a>00466
<a name="l00467"></a>00467 QByteArray msg;
<a name="l00468"></a>00468 <span class="comment">//msg.setRawData(mReceiveBuffer.data()+2*sizeof(long),len-2*sizeof(long));</span>
<a name="l00469"></a>00469 msg.duplicate(mReceiveBuffer.data()+2*<span class="keyword">sizeof</span>(long),len-2*<span class="keyword">sizeof</span>(<span class="keywordtype">long</span>));
<a name="l00470"></a>00470 emit <a class="code" href="classKMessageIO.html#c2925ec4f163a91f15b037dcd9dc93a2" title="This signal is emitted when /e send() on the connected KMessageIO object is called...">received</a>(msg);
<a name="l00471"></a>00471 <span class="comment">//msg.resetRawData(mReceiveBuffer.data()+2*sizeof(long),len-2*sizeof(long));</span>
<a name="l00472"></a>00472 mReceiveCount=0;
<a name="l00473"></a>00473 }
<a name="l00474"></a>00474 }
<a name="l00475"></a>00475
<a name="l00476"></a>00476
<a name="l00477"></a>00477 return ;
<a name="l00478"></a>00478
<a name="l00479"></a>00479
<a name="l00480"></a>00480 }
<a name="l00481"></a>00481
<a name="l00482"></a>00482 <span class="preprocessor">#include "kmessageio.moc"</span>
</pre></div></div>
</div></div>
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distrib
>
Mandriva
>
2008.1
>
x86_64
>
media
>
main-release
>
by-pkgid
>
ea24284f03fd4a8a4b64047514d93f64
>
files
>
335
