Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/rconnection_8cpp_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
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<h1>examples/DataComms/Rconnection/rconnection.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).</span>
<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// Description:</span>
<a name="l00014"></a>00014 <span class="comment">//</span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="preprocessor">#include "rconnection.h"</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KContinueNote,<span class="stringliteral">"Press any key to continue\n"</span>);
<a name="l00021"></a>00021 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KOpenErr,<span class="stringliteral">"Open() unsuccessful\n"</span>);
<a name="l00022"></a>00022 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStartErr,<span class="stringliteral">"RConnection::Start() unsuccessful\n"</span>);
<a name="l00023"></a>00023 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KInterfaceUp,<span class="stringliteral">"Connection has started and interface is up\n"</span>);
<a name="l00024"></a>00024 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KInterfaceDown,<span class="stringliteral">"Connection has closed and interface is down\n"</span>);
<a name="l00025"></a>00025 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KConnectionUpNote,<span class="stringliteral">"Connection is up....\n"</span>);
<a name="l00026"></a>00026 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KConnectionStartNote,<span class="stringliteral">"Start() was called on the connection\n"</span>);
<a name="l00027"></a>00027 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KConnectionClosingNote,<span class="stringliteral">"The connection is about to be closed\n"</span>);
<a name="l00028"></a>00028 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KWaitNote,<span class="stringliteral">"Waiting for the connection to close.....\n"</span>);
<a name="l00029"></a>00029 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KUpLinkData,<span class="stringliteral">"Data volume on uplink=%d bytes\n"</span>);
<a name="l00030"></a>00030 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KDownLinkData,<span class="stringliteral">"Data volume on downlink=%d bytes\n"</span>);
<a name="l00031"></a>00031 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KDataTransferNote,<span class="stringliteral">"Calling DataSendAndReceive()\n"</span>);
<a name="l00032"></a>00032 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KSocketErrNote,<span class="stringliteral">"Socket preparation failed\n"</span>);
<a name="l00033"></a>00033 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KSocketSetNote,<span class="stringliteral">"Socket successfully established\n"</span>);
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KRow1,<span class="stringliteral">"**********************************************************\n"</span>);
<a name="l00036"></a>00036 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KRow2,<span class="stringliteral">" Section Demonstrating : \n"</span>);
<a name="l00037"></a>00037 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KRow3,<span class="stringliteral">"**********************************************************\n"</span>);
<a name="l00038"></a>00038 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTab,<span class="stringliteral">"\t"</span>);
<a name="l00039"></a>00039 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KNewLine,<span class="stringliteral">"\n"</span>);
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <span class="preprocessor">#define KEchoPort 0xAB //Port value for client socket.</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor">#define KMaxBufferLength 2048 //Maximum length of buffer used to send and receive data.</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="preprocessor">#define KDelay 1000000 //Time interval in microseconds to wait before carrying out the next task.</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span>
<a name="l00048"></a><a class="code" href="class_c_r_connection.html#a84c7cc0c77e1848e2c7abceaf98f8aa6">00048</a> <a class="code" href="class_c_r_connection.html#a84c7cc0c77e1848e2c7abceaf98f8aa6">CRConnection::CRConnection</a>(CConsoleBase* aConsole)
<a name="l00049"></a>00049 :iConsole(aConsole)
<a name="l00050"></a>00050 {
<a name="l00051"></a>00051 <span class="comment">//Set the destination address and port.</span>
<a name="l00052"></a>00052 <span class="comment">//Before running the example user should start an Echo server </span>
<a name="l00053"></a>00053 <span class="comment">//and then specify the respective IP Address and port of the echo server </span>
<a name="l00054"></a>00054 <span class="comment">//for iDestAddr.</span>
<a name="l00055"></a>00055 <span class="comment">//Until the Echo Server is established send and receive functionality won't work properly. </span>
<a name="l00056"></a>00056
<a name="l00057"></a>00057
<a name="l00058"></a>00058 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KDestAddr,<span class="stringliteral">"127.0.0.1"</span>);
<a name="l00059"></a>00059 <span class="keyword">const</span> TInt KSockPort= 7;
<a name="l00060"></a>00060
<a name="l00061"></a>00061 iDestAddr.Input(KDestAddr);
<a name="l00062"></a>00062 iDestAddr.SetPort(KSockPort);
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <a class="code" href="class_c_r_connection.html#a19bc66bcf8022be01b9ebababe8e8026">StartESOCK</a>();
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066
<a name="l00067"></a>00067
<a name="l00071"></a><a class="code" href="class_c_r_connection.html#ace777e34413be6f891d646dbe977bfcb">00071</a> <a class="code" href="class_c_r_connection.html#ace777e34413be6f891d646dbe977bfcb">CRConnection::~CRConnection</a>()
<a name="l00072"></a>00072 {
<a name="l00073"></a>00073 <span class="comment">//Closing the monitor and socket server session.</span>
<a name="l00074"></a>00074 iMonitor.Close();
<a name="l00075"></a>00075 iSocketServ.Close();
<a name="l00076"></a>00076 }
<a name="l00077"></a>00077
<a name="l00083"></a><a class="code" href="class_c_r_connection.html#a19bc66bcf8022be01b9ebababe8e8026">00083</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_connection.html#a19bc66bcf8022be01b9ebababe8e8026">CRConnection::StartESOCK</a>()
<a name="l00084"></a>00084 {
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="comment">//Connects to the socket server.</span>
<a name="l00087"></a>00087 TInt err=iSocketServ.Connect();
<a name="l00088"></a>00088 <span class="keywordflow">if</span>(err!=KErrNone)
<a name="l00089"></a>00089 {
<a name="l00090"></a>00090 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KConnectErr,<span class="stringliteral">"Connect failed\n"</span>);
<a name="l00091"></a>00091 User::Panic(KConnectErr,err);
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="comment">//Opens the monitor to receive notification when another connection</span>
<a name="l00095"></a>00095 <span class="comment">//that uses the same socket server goes up or down. </span>
<a name="l00096"></a>00096 err=iMonitor.Open(iSocketServ);
<a name="l00097"></a>00097 <span class="keywordflow">if</span>(err!=KErrNone)
<a name="l00098"></a>00098 {
<a name="l00099"></a>00099 iConsole->Printf(KOpenErr);
<a name="l00100"></a>00100 <span class="keywordflow">return</span>;
<a name="l00101"></a>00101 }
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103
<a name="l00111"></a><a class="code" href="class_c_r_connection.html#a9e18367074b7c5054957d262096067cd">00111</a> TInt <a class="code" href="class_c_r_connection.html#a9e18367074b7c5054957d262096067cd">CRConnection::ConnectWithoutDbOverrideL</a>()
<a name="l00112"></a>00112 {
<a name="l00113"></a>00113 <span class="comment">// Opens an RConnection and associates it with the same socket server session as iMonitor.</span>
<a name="l00114"></a>00114 <span class="comment">// To use an RConnection instance first it needs to be opened on an existing socket server session </span>
<a name="l00115"></a>00115 <span class="comment">// and then Start() must be called to associate it with an underlying interface.</span>
<a name="l00116"></a>00116 TInt err=iConnection.Open(iSocketServ);
<a name="l00117"></a>00117 <span class="keywordflow">if</span>(err!=KErrNone)
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 iConsole->Printf(KOpenErr);
<a name="l00120"></a>00120 <span class="keywordflow">return</span> err;
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122
<a name="l00123"></a>00123 <span class="comment">//Starts the connection using default CommDb settings.</span>
<a name="l00124"></a>00124 err=iConnection.Start();
<a name="l00125"></a>00125 <span class="keywordflow">if</span>(err!=KErrNone)
<a name="l00126"></a>00126 {
<a name="l00127"></a>00127 iConsole->Printf(KStartErr);
<a name="l00128"></a>00128 <span class="keywordflow">return</span> err;
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130 <span class="keywordflow">else</span>
<a name="l00131"></a>00131 {
<a name="l00132"></a>00132 iConsole->Printf(KConnectionStartNote);
<a name="l00133"></a>00133 <span class="keywordflow">return</span> err;
<a name="l00134"></a>00134 }
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136
<a name="l00140"></a><a class="code" href="class_c_r_connection.html#a92ae35c52534f3a5c2bff2d0cb3ebddd">00140</a> TInt <a class="code" href="class_c_r_connection.html#a92ae35c52534f3a5c2bff2d0cb3ebddd">CRConnection::ConnectWithDbOverrideL</a>()
<a name="l00141"></a>00141 {
<a name="l00142"></a>00142 <span class="comment">// To use an RConnection instance first it needs to be opened on an existing socket server session </span>
<a name="l00143"></a>00143 <span class="comment">// and then Start() must be called to associate it with an underlying interface.</span>
<a name="l00144"></a>00144 TInt err=iConnection.Open(iSocketServ);
<a name="l00145"></a>00145 <span class="keywordflow">if</span>(err!=KErrNone)
<a name="l00146"></a>00146 {
<a name="l00147"></a>00147 iConsole->Printf(KOpenErr);
<a name="l00148"></a>00148 <span class="keywordflow">return</span> err;
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="comment">// Overrides some Commdb connection preferences.</span>
<a name="l00152"></a>00152 <span class="keyword">const</span> TInt KIapId=9;
<a name="l00153"></a>00153 TCommDbConnPref prefs;
<a name="l00154"></a>00154 prefs.SetDialogPreference(ECommDbDialogPrefDoNotPrompt);
<a name="l00155"></a>00155 prefs.SetIapId(KIapId); <span class="comment">//The commdb is set for Ethernet with Daemon Static IP. </span>
<a name="l00156"></a>00156
<a name="l00157"></a>00157 <span class="comment">//Starts an outgoing connection.</span>
<a name="l00158"></a>00158 err=iConnection.Start(prefs);
<a name="l00159"></a>00159
<a name="l00160"></a>00160 <span class="keywordflow">if</span>(err==KErrNone)
<a name="l00161"></a>00161 {
<a name="l00162"></a>00162 iConsole->Printf(KConnectionStartNote);
<a name="l00163"></a>00163 <span class="keywordflow">return</span> err;
<a name="l00164"></a>00164 }
<a name="l00165"></a>00165 <span class="keywordflow">else</span>
<a name="l00166"></a>00166 {
<a name="l00167"></a>00167 iConsole->Printf(KStartErr);
<a name="l00168"></a>00168 <span class="keywordflow">return</span> err;
<a name="l00169"></a>00169 }
<a name="l00170"></a>00170 }
<a name="l00176"></a><a class="code" href="class_c_r_connection.html#a147d17095309f15cc007cf20271884ec">00176</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_connection.html#a147d17095309f15cc007cf20271884ec">CRConnection::GetProgressNotification</a>()
<a name="l00177"></a>00177 {
<a name="l00178"></a>00178 TRequestStatus status;
<a name="l00179"></a>00179 TNifProgressBuf buffer; <span class="comment">//filled with progress/error information on completion </span>
<a name="l00180"></a>00180 <span class="keywordflow">while</span>((TUint)(buffer().iStage)!=KConnectionUp)
<a name="l00181"></a>00181 {
<a name="l00182"></a>00182 iConnection.ProgressNotification(buffer,status);
<a name="l00183"></a>00183 User::WaitForRequest(status);
<a name="l00184"></a>00184 <span class="keywordflow">if</span>(status==KErrNone&&(buffer().iError)==KErrNone)
<a name="l00185"></a>00185 {
<a name="l00186"></a>00186 <a class="code" href="class_c_r_connection.html#ae9aa5ca6ef0e36b4b1cccd2ef7c85ef4">DisplayProgressinfo</a>(buffer());
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188 User::After(KDelay);
<a name="l00189"></a>00189 }
<a name="l00190"></a>00190 iConsole->Printf(KConnectionUpNote); <span class="comment">//Link layer is now open. </span>
<a name="l00191"></a>00191
<a name="l00192"></a>00192
<a name="l00193"></a>00193 }
<a name="l00194"></a>00194
<a name="l00199"></a><a class="code" href="class_c_r_connection.html#ae9aa5ca6ef0e36b4b1cccd2ef7c85ef4">00199</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_connection.html#ae9aa5ca6ef0e36b4b1cccd2ef7c85ef4">CRConnection::DisplayProgressinfo</a>(<span class="keyword">const</span> TNifProgress& aProgress)
<a name="l00200"></a>00200 {
<a name="l00201"></a>00201 <span class="keywordflow">switch</span>(aProgress.iStage)
<a name="l00202"></a>00202 {
<a name="l00203"></a>00203 <span class="keywordflow">case</span> KStartingSelection:
<a name="l00204"></a>00204 {
<a name="l00205"></a>00205 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStartSelectionNote,<span class="stringliteral">"Starting Selection...........\n"</span>);
<a name="l00206"></a>00206 iConsole->Printf(KStartSelectionNote);
<a name="l00207"></a>00207 <span class="keywordflow">break</span>;
<a name="l00208"></a>00208 }
<a name="l00209"></a>00209
<a name="l00210"></a>00210 <span class="keywordflow">case</span> KFinishedSelection:
<a name="l00211"></a>00211 {
<a name="l00212"></a>00212 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFinishedSelectionNote,<span class="stringliteral">"Finished Selection...........\n"</span>);
<a name="l00213"></a>00213 iConsole->Printf(KFinishedSelectionNote);
<a name="l00214"></a>00214 <span class="keywordflow">break</span>;
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="keywordflow">case</span> KConnectionOpen:
<a name="l00218"></a>00218 {
<a name="l00219"></a>00219 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KWlanAgtConnected,<span class="stringliteral">"Wlan agent connected....\n"</span>);
<a name="l00220"></a>00220 iConsole->Printf(KWlanAgtConnected);
<a name="l00221"></a>00221 <span class="keywordflow">break</span>;
<a name="l00222"></a>00222 }
<a name="l00223"></a>00223
<a name="l00224"></a>00224 <span class="comment">//Generic progress notifications from the configuration daemon. </span>
<a name="l00225"></a>00225 <span class="keywordflow">case</span> KConfigDaemonLoading:
<a name="l00226"></a>00226 {
<a name="l00227"></a>00227 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KConfigDaemonLoadingNote,<span class="stringliteral">"Daemon loading....\n"</span>);
<a name="l00228"></a>00228 iConsole->Printf(KConfigDaemonLoadingNote);
<a name="l00229"></a>00229 <span class="keywordflow">break</span>;
<a name="l00230"></a>00230 }
<a name="l00231"></a>00231
<a name="l00232"></a>00232 <span class="keywordflow">case</span> KConfigDaemonLoaded:
<a name="l00233"></a>00233 {
<a name="l00234"></a>00234 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KConfigDaemonLoadedNote,<span class="stringliteral">"Daemon loaded....\n"</span>);
<a name="l00235"></a>00235 iConsole->Printf(KConfigDaemonLoadedNote);
<a name="l00236"></a>00236 <span class="keywordflow">break</span>;
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238
<a name="l00239"></a>00239 <span class="keywordflow">case</span> KConfigDaemonStartingRegistration:
<a name="l00240"></a>00240 {
<a name="l00241"></a>00241 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KConfigDaemonStartingRegistrationNote,<span class="stringliteral">"Daemon starting registration....\n"</span>);
<a name="l00242"></a>00242 iConsole->Printf(KConfigDaemonStartingRegistrationNote);
<a name="l00243"></a>00243 <span class="keywordflow">break</span>;
<a name="l00244"></a>00244 }
<a name="l00245"></a>00245
<a name="l00246"></a>00246 <span class="keywordflow">case</span> KConfigDaemonFinishedRegistration:
<a name="l00247"></a>00247 {
<a name="l00248"></a>00248 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KConfigDaemonFinishedRegistrationNote,<span class="stringliteral">"Daemon registration finished....\n"</span>);
<a name="l00249"></a>00249 iConsole->Printf(KConfigDaemonFinishedRegistrationNote);
<a name="l00250"></a>00250 <span class="keywordflow">break</span>;
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252
<a name="l00253"></a>00253 <span class="keywordflow">default</span>:
<a name="l00254"></a>00254 <span class="keywordflow">break</span>;
<a name="l00255"></a>00255 }
<a name="l00256"></a>00256 }
<a name="l00257"></a>00257
<a name="l00263"></a><a class="code" href="class_c_r_connection.html#a7cccd60b864d9fe658eae6dcf62d79de">00263</a> TInt <a class="code" href="class_c_r_connection.html#a7cccd60b864d9fe658eae6dcf62d79de">CRConnection::PrepareSocket</a>()
<a name="l00264"></a>00264 {
<a name="l00265"></a>00265 TInt err = iSocket.Open(iSocketServ, KAfInet, KSockDatagram, KProtocolInetUdp, iConnection);
<a name="l00266"></a>00266 <span class="keywordflow">if</span> (err != KErrNone)
<a name="l00267"></a>00267 {
<a name="l00268"></a>00268 <span class="keywordflow">return</span> err;
<a name="l00269"></a>00269 }
<a name="l00270"></a>00270
<a name="l00271"></a>00271 <span class="comment">//Sets a socket option. These options affect operations such as the routing of packets, </span>
<a name="l00272"></a>00272 <span class="comment">//out-of-band data transfer, and so on. Here the option level "KSolInetIp" is set for an IP socket,</span>
<a name="l00273"></a>00273 <span class="comment">//and the option being set is "KSoReuseAddr". This means the socket is allowed to be bound to a local</span>
<a name="l00274"></a>00274 <span class="comment">//address that is already in use.</span>
<a name="l00275"></a>00275 <span class="comment">//The third parameter i.e 1 states that the option is enabled.A value of 0 means disabled.</span>
<a name="l00276"></a>00276
<a name="l00277"></a>00277 err = iSocket.SetOpt(KSoReuseAddr, KSolInetIp, 1);
<a name="l00278"></a>00278 <span class="keywordflow">if</span> (err != KErrNone)
<a name="l00279"></a>00279 {
<a name="l00280"></a>00280 <span class="keywordflow">return</span> err;
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282
<a name="l00283"></a>00283 <span class="comment">//Sets a local port for the socket.</span>
<a name="l00284"></a>00284 err = iSocket.SetLocalPort(KEchoPort);
<a name="l00285"></a>00285 <span class="keywordflow">if</span> (err != KErrNone)
<a name="l00286"></a>00286 {
<a name="l00287"></a>00287 <span class="keywordflow">return</span> err;
<a name="l00288"></a>00288 }
<a name="l00289"></a>00289 <span class="keywordflow">return</span> err;
<a name="l00290"></a>00290 }
<a name="l00296"></a><a class="code" href="class_c_r_connection.html#a70b4e383cacd646e109d8819be8c2741">00296</a> TInt <a class="code" href="class_c_r_connection.html#a70b4e383cacd646e109d8819be8c2741">CRConnection::SendUdpData</a>(TUint aPayloadSize)
<a name="l00297"></a>00297 {
<a name="l00298"></a>00298
<a name="l00299"></a>00299 TBuf8<KMaxBufferLength> buffer;
<a name="l00300"></a>00300 <span class="comment">// construct an ICMP packet to send on the socket.</span>
<a name="l00301"></a>00301 buffer.SetMax();
<a name="l00302"></a>00302 buffer.FillZ();
<a name="l00303"></a>00303 buffer[0] = (TUint8) 0x08; <span class="comment">// ICMP type = 8.</span>
<a name="l00304"></a>00304 buffer[1] = (TUint8) 0x00; <span class="comment">// ICMP code = 0.</span>
<a name="l00305"></a>00305 buffer[2] = (TUint8) 0xF7; <span class="comment">// ICMP checksum high byte.</span>
<a name="l00306"></a>00306 buffer[3] = (TUint8) 0xFF; <span class="comment">// ICMP checksum low byte.</span>
<a name="l00307"></a>00307
<a name="l00308"></a>00308 <span class="comment">// NB the rest of the buffer is zero</span>
<a name="l00309"></a>00309 <span class="comment">// hence the checksum (0xFFFF - 0x800) since 0x8</span>
<a name="l00310"></a>00310 <span class="comment">// is the only non-zero element of the buffer</span>
<a name="l00311"></a>00311
<a name="l00312"></a>00312 <span class="comment">// set the length of the data to be sent to that specified (payload size!).</span>
<a name="l00313"></a>00313 buffer.SetLength(aPayloadSize);
<a name="l00314"></a>00314
<a name="l00315"></a>00315 TRequestStatus status;
<a name="l00316"></a>00316
<a name="l00317"></a>00317 <span class="comment">// send the data out over the socket.</span>
<a name="l00318"></a>00318 iSocket.SendTo(buffer, iDestAddr, 0, status);
<a name="l00319"></a>00319 User::WaitForRequest(status);
<a name="l00320"></a>00320
<a name="l00321"></a>00321 <span class="keywordflow">return</span> status.Int();
<a name="l00322"></a>00322 }
<a name="l00323"></a>00323
<a name="l00329"></a><a class="code" href="class_c_r_connection.html#a466713ba7cf7584e7c4ba025c26bddff">00329</a> TInt <a class="code" href="class_c_r_connection.html#a466713ba7cf7584e7c4ba025c26bddff">CRConnection::RecvUdpData</a>(TUint aPayloadSize)
<a name="l00330"></a>00330 {
<a name="l00331"></a>00331
<a name="l00332"></a>00332 TInt timeoutInSecs = 30;
<a name="l00333"></a>00333 RTimer timer;
<a name="l00334"></a>00334
<a name="l00335"></a>00335 <span class="comment">/* </span>
<a name="l00336"></a>00336 <span class="comment"> Creates a timer so that we can handle error situation arising due to lost udp packet</span>
<a name="l00337"></a>00337 <span class="comment"> and dont completely rely on being errored by esock alone. This code waits for 30sec for</span>
<a name="l00338"></a>00338 <span class="comment"> udp data packet to arrive from the server. If the data is not available within this</span>
<a name="l00339"></a>00339 <span class="comment"> time the socket waiting for data is closed and the error value of KErrTimedOut is </span>
<a name="l00340"></a>00340 <span class="comment"> returned. </span>
<a name="l00341"></a>00341 <span class="comment"> */</span>
<a name="l00342"></a>00342 TInt ret;
<a name="l00343"></a>00343 <span class="keywordflow">if</span> ((ret = timer.CreateLocal()) != KErrNone)
<a name="l00344"></a>00344 {
<a name="l00345"></a>00345 timer.Close(); <span class="comment">// closing the timer.</span>
<a name="l00346"></a>00346 <span class="keywordflow">return</span> ret;
<a name="l00347"></a>00347 }
<a name="l00348"></a>00348 TRequestStatus timerStatus;
<a name="l00349"></a>00349 timer.After(timerStatus, timeoutInSecs * 1000000); <span class="comment">//setting timer.</span>
<a name="l00350"></a>00350
<a name="l00351"></a>00351 TBuf8<KMaxBufferLength> buffer;
<a name="l00352"></a>00352 buffer.Zero();
<a name="l00353"></a>00353 buffer.SetLength(aPayloadSize);
<a name="l00354"></a>00354
<a name="l00355"></a>00355 TRequestStatus status;
<a name="l00356"></a>00356 iSocket.RecvFrom(buffer, iDestAddr, 0, status); <span class="comment">//waiting on data from the server.</span>
<a name="l00357"></a>00357 User::WaitForRequest(status, timerStatus);
<a name="l00358"></a>00358
<a name="l00359"></a>00359 <span class="comment">// Timer expired, and if no data is received cancel the receive operation.</span>
<a name="l00360"></a>00360 <span class="keywordflow">if</span>(timerStatus != KRequestPending)
<a name="l00361"></a>00361 {
<a name="l00362"></a>00362 iSocket.CancelAll();
<a name="l00363"></a>00363 User::WaitForRequest(status);
<a name="l00364"></a>00364 timer.Close();
<a name="l00365"></a>00365 <span class="keywordflow">return</span> KErrTimedOut;
<a name="l00366"></a>00366 }
<a name="l00367"></a>00367 <span class="comment">// otherwise cancel the timer.</span>
<a name="l00368"></a>00368 timer.Cancel();
<a name="l00369"></a>00369 User::WaitForRequest(timerStatus);
<a name="l00370"></a>00370 timer.Close();
<a name="l00371"></a>00371
<a name="l00372"></a>00372 <span class="comment">//when data is successfully received, check against the previously sent buffer data,</span>
<a name="l00373"></a>00373 <span class="comment">//to see what is received is what was sent.</span>
<a name="l00374"></a>00374 <span class="keywordflow">if</span> (status != KErrNone)
<a name="l00375"></a>00375 <span class="keywordflow">return</span> status.Int();
<a name="l00376"></a>00376 <span class="keywordflow">else</span>
<a name="l00377"></a>00377 {
<a name="l00378"></a>00378 <span class="keywordflow">if</span>(buffer[0] == 0x08)
<a name="l00379"></a>00379 {
<a name="l00380"></a>00380 <span class="keywordflow">if</span>(buffer[1] == 0x00)
<a name="l00381"></a>00381 {
<a name="l00382"></a>00382 <span class="keywordflow">if</span>(buffer[2] == 0xF7)
<a name="l00383"></a>00383 {
<a name="l00384"></a>00384 <span class="keywordflow">if</span>(buffer[3] == 0xFF)
<a name="l00385"></a>00385 {
<a name="l00386"></a>00386 ;
<a name="l00387"></a>00387 }
<a name="l00388"></a>00388 <span class="keywordflow">else</span>
<a name="l00389"></a>00389 {
<a name="l00390"></a>00390 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFourthDataSet,<span class="stringliteral">"Fourth set of data not received\n"</span>);
<a name="l00391"></a>00391 iConsole->Printf(KFourthDataSet);
<a name="l00392"></a>00392 }
<a name="l00393"></a>00393 }
<a name="l00394"></a>00394 <span class="keywordflow">else</span>
<a name="l00395"></a>00395 {
<a name="l00396"></a>00396 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KThirdDataSet,<span class="stringliteral">"Third set of data not received\n"</span>);
<a name="l00397"></a>00397 iConsole->Printf(KThirdDataSet);
<a name="l00398"></a>00398 }
<a name="l00399"></a>00399
<a name="l00400"></a>00400 }
<a name="l00401"></a>00401 <span class="keywordflow">else</span>
<a name="l00402"></a>00402 {
<a name="l00403"></a>00403 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KSecondDataSet,<span class="stringliteral">"Second set of data not received\n"</span>);
<a name="l00404"></a>00404 iConsole->Printf(KSecondDataSet);
<a name="l00405"></a>00405 }
<a name="l00406"></a>00406 }
<a name="l00407"></a>00407 <span class="keywordflow">else</span>
<a name="l00408"></a>00408 {
<a name="l00409"></a>00409 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFirstDataSet,<span class="stringliteral">"First set of data not received\n"</span>);
<a name="l00410"></a>00410 iConsole->Printf(KFirstDataSet);
<a name="l00411"></a>00411 }
<a name="l00412"></a>00412
<a name="l00413"></a>00413 }
<a name="l00414"></a>00414 <span class="keywordflow">return</span> KErrNone;
<a name="l00415"></a>00415 }
<a name="l00416"></a>00416
<a name="l00420"></a><a class="code" href="class_c_r_connection.html#ad1e2063ee36acfb0434006b4fdbadbb6">00420</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_connection.html#ad1e2063ee36acfb0434006b4fdbadbb6">CRConnection::DataSendAndReceive</a>(TUint aPayloadSize)
<a name="l00421"></a>00421 {
<a name="l00422"></a>00422 <span class="comment">//Sends UDP Data.</span>
<a name="l00423"></a>00423 TInt err = <a class="code" href="class_c_r_connection.html#a70b4e383cacd646e109d8819be8c2741">SendUdpData</a>(aPayloadSize);
<a name="l00424"></a>00424 <span class="keywordflow">if</span> (err != KErrNone)
<a name="l00425"></a>00425 {
<a name="l00426"></a>00426 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KDataSentErrNote,<span class="stringliteral">"DataSend Failed\n"</span>);
<a name="l00427"></a>00427 iConsole->Printf(KDataSentErrNote);
<a name="l00428"></a>00428 return ;
<a name="l00429"></a>00429 }
<a name="l00430"></a>00430 <span class="keywordflow">else</span>
<a name="l00431"></a>00431 {
<a name="l00432"></a>00432 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KDataSentNote,<span class="stringliteral">"DataSend Successful\n"</span>);
<a name="l00433"></a>00433 iConsole->Printf(KDataSentNote);
<a name="l00434"></a>00434 }
<a name="l00435"></a>00435
<a name="l00436"></a>00436 <span class="comment">//Receives UDP Data.</span>
<a name="l00437"></a>00437 err = <a class="code" href="class_c_r_connection.html#a466713ba7cf7584e7c4ba025c26bddff">RecvUdpData</a>(aPayloadSize);
<a name="l00438"></a>00438 <span class="keywordflow">if</span>(err!=KErrNone)
<a name="l00439"></a>00439 {
<a name="l00440"></a>00440 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KDataReceiveErrNote,<span class="stringliteral">"DataReceive Failed\n"</span>);
<a name="l00441"></a>00441 iConsole->Printf(KDataReceiveErrNote);
<a name="l00442"></a>00442 return ;
<a name="l00443"></a>00443 }
<a name="l00444"></a>00444 <span class="keywordflow">else</span>
<a name="l00445"></a>00445 {
<a name="l00446"></a>00446 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KDataReceiveNote,<span class="stringliteral">"DataReceive Successful\n"</span>);
<a name="l00447"></a>00447 iConsole->Printf(KDataReceiveNote);
<a name="l00448"></a>00448 }
<a name="l00449"></a>00449
<a name="l00450"></a>00450 }
<a name="l00451"></a>00451
<a name="l00455"></a><a class="code" href="class_c_r_connection.html#a152237406ecb9b91534c869b0fcc5c54">00455</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_connection.html#a152237406ecb9b91534c869b0fcc5c54">CRConnection::DataTransferredRequest</a>()
<a name="l00456"></a>00456 {
<a name="l00457"></a>00457 TPckg<TUint> uplinkVolumeDes(0); <span class="comment">//holds the amount of data received.</span>
<a name="l00458"></a>00458 TPckg<TUint> downlinkVolumeDes(0); <span class="comment">//holds the amount of data transmitted.</span>
<a name="l00459"></a>00459
<a name="l00460"></a>00460 TRequestStatus datastatus;
<a name="l00461"></a>00461
<a name="l00462"></a>00462 iConnection.DataTransferredRequest(uplinkVolumeDes, downlinkVolumeDes, datastatus);
<a name="l00463"></a>00463 User::WaitForRequest(datastatus);
<a name="l00464"></a>00464
<a name="l00465"></a>00465 <span class="keywordflow">if</span>(datastatus==KErrNone)
<a name="l00466"></a>00466 {
<a name="l00467"></a>00467 iConsole->Printf(KUpLinkData,uplinkVolumeDes());
<a name="l00468"></a>00468 iConsole->Printf(KDownLinkData,downlinkVolumeDes());
<a name="l00469"></a>00469 }
<a name="l00470"></a>00470
<a name="l00471"></a>00471 }
<a name="l00476"></a><a class="code" href="class_c_r_connection.html#a06a6adfc62452ed190cc1d461cfa1961">00476</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_connection.html#a06a6adfc62452ed190cc1d461cfa1961">CRConnection::DataTransferNotificationRequest</a>()
<a name="l00477"></a>00477 {
<a name="l00478"></a>00478 <span class="keyword">const</span> TUint KHundredBytes = 100; <span class="comment">//The threshold value for notification.</span>
<a name="l00479"></a>00479 <span class="keyword">const</span> TUint KThousandBytes = 1000; <span class="comment">//The total amount of data to send/receive.</span>
<a name="l00480"></a>00480 TPckg< TUint > uplinkPkg(0); <span class="comment">//Holds the amount of data sent.</span>
<a name="l00481"></a>00481 TPckg< TUint > downlinkPkg(0);<span class="comment">//Holds the amount of data received.</span>
<a name="l00482"></a>00482 TRequestStatus dataSentStatus,dataReceivedStatus;
<a name="l00483"></a>00483
<a name="l00484"></a>00484 <span class="comment">//Registers for data sent notification. The process gets notified when 100 bytes of data are sent. </span>
<a name="l00485"></a>00485 iConnection.DataSentNotificationRequest(KHundredBytes, uplinkPkg, dataSentStatus );
<a name="l00486"></a>00486
<a name="l00487"></a>00487 <span class="comment">//Registers for data received notification. The process gets notified when 100 bytes of data are received.</span>
<a name="l00488"></a>00488 iConnection.DataReceivedNotificationRequest(KHundredBytes, downlinkPkg, dataReceivedStatus );
<a name="l00489"></a>00489 iConsole->Printf(KDataTransferNote);
<a name="l00490"></a>00490
<a name="l00491"></a>00491 <span class="comment">//Sends and receives 1000 bytes of data.</span>
<a name="l00492"></a>00492 <a class="code" href="class_c_r_connection.html#ad1e2063ee36acfb0434006b4fdbadbb6">DataSendAndReceive</a>(KThousandBytes);
<a name="l00493"></a>00493
<a name="l00494"></a>00494 <span class="comment">/*</span>
<a name="l00495"></a>00495 <span class="comment"> Gets the total data sent/received = datavolume+UdpPacketOverhead</span>
<a name="l00496"></a>00496 <span class="comment"> here datavolume=1000 bytes,thus total data send/receive > 1000 as </span>
<a name="l00497"></a>00497 <span class="comment"> some overhead gets added on top of the actual datavolume.</span>
<a name="l00498"></a>00498 <span class="comment"> */</span>
<a name="l00499"></a>00499
<a name="l00500"></a>00500 User::WaitForRequest(dataSentStatus);
<a name="l00501"></a>00501 User::WaitForRequest(dataReceivedStatus);
<a name="l00502"></a>00502 <span class="keywordflow">if</span> ((dataSentStatus.Int())== KErrNone)
<a name="l00503"></a>00503 {
<a name="l00504"></a>00504 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KSentSuccessNote,<span class="stringliteral">"DataSentNotificationRequest is successful and\n "</span>);
<a name="l00505"></a>00505 iConsole->Printf(KSentSuccessNote);
<a name="l00506"></a>00506 }
<a name="l00507"></a>00507 <span class="keywordflow">else</span>
<a name="l00508"></a>00508 {
<a name="l00509"></a>00509 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KSentFailureNote,<span class="stringliteral">"DataSentNotificationRequest has failed and \n"</span>);
<a name="l00510"></a>00510 iConsole->Printf(KSentFailureNote);
<a name="l00511"></a>00511 }
<a name="l00512"></a>00512 iConsole->Printf(KUpLinkData,uplinkPkg());
<a name="l00513"></a>00513
<a name="l00514"></a>00514 <span class="keywordflow">if</span> (dataReceivedStatus.Int()==KErrNone)
<a name="l00515"></a>00515 {
<a name="l00516"></a>00516 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KReceivedSuccessNote,<span class="stringliteral">"DataReceivedNotificationRequest is successful and \n"</span>);
<a name="l00517"></a>00517 iConsole->Printf(KReceivedSuccessNote);
<a name="l00518"></a>00518 }
<a name="l00519"></a>00519 <span class="keywordflow">else</span>
<a name="l00520"></a>00520 {
<a name="l00521"></a>00521 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KReceivedFailureNote,<span class="stringliteral">"DataReceivedNotificationRequest has failed and \n"</span>);
<a name="l00522"></a>00522 iConsole->Printf(KReceivedFailureNote);
<a name="l00523"></a>00523 }
<a name="l00524"></a>00524 iConsole->Printf(KDownLinkData,downlinkPkg());
<a name="l00525"></a>00525
<a name="l00526"></a>00526 }
<a name="l00527"></a>00527
<a name="l00528"></a>00528 <span class="keywordtype">void</span> CRConnection::DisplaySectionToDemo(<span class="keyword">const</span> TDesC& aText)
<a name="l00529"></a>00529 {
<a name="l00530"></a>00530 TBuf<120> newtext;
<a name="l00531"></a>00531 newtext.Append(KTab);
<a name="l00532"></a>00532 newtext.Append(aText);
<a name="l00533"></a>00533 newtext.Append(KTab);
<a name="l00534"></a>00534 newtext.Append(KNewLine);
<a name="l00535"></a>00535 iConsole->Printf(KRow1);
<a name="l00536"></a>00536 iConsole->Printf(KRow2);
<a name="l00537"></a>00537 iConsole->Printf(newtext);
<a name="l00538"></a>00538 iConsole->Printf(KRow3);
<a name="l00539"></a>00539 iConsole->Printf(KNewLine);
<a name="l00540"></a>00540 }
<a name="l00541"></a>00541
<a name="l00552"></a><a class="code" href="class_c_r_connection.html#acdcd4da66841b804b318afb37e4b4c1c">00552</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_connection.html#acdcd4da66841b804b318afb37e4b4c1c">CRConnection::DemoApiWithoutDbOverrideL</a>()
<a name="l00553"></a>00553 {
<a name="l00554"></a>00554 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KDemoApiWithoutDbOverride,<span class="stringliteral">"RConnection API without CommDb override\n"</span>);
<a name="l00555"></a>00555 iConsole->ClearScreen();
<a name="l00556"></a>00556 DisplaySectionToDemo(KDemoApiWithoutDbOverride);
<a name="l00557"></a>00557
<a name="l00558"></a>00558 TRequestStatus status;
<a name="l00559"></a>00559 TInterfaceNotificationBuf info;
<a name="l00560"></a>00560 <span class="comment">//Makes a request for notification when the interface goes up i.e. the connection starts.</span>
<a name="l00561"></a>00561 iMonitor.AllInterfaceNotification(info,status);
<a name="l00562"></a>00562
<a name="l00563"></a>00563 <span class="comment">//Makes an explicit connection without CommDb override. </span>
<a name="l00564"></a>00564 TInt err=<a class="code" href="class_c_r_connection.html#a9e18367074b7c5054957d262096067cd">ConnectWithoutDbOverrideL</a>();
<a name="l00565"></a>00565 <span class="keywordflow">if</span>(err!=KErrNone)
<a name="l00566"></a>00566 <span class="keywordflow">return</span>;
<a name="l00567"></a>00567
<a name="l00568"></a>00568 <span class="comment">//Waits on TRequestStatus until the interface is up.</span>
<a name="l00569"></a>00569 User::WaitForRequest(status);
<a name="l00570"></a>00570 <span class="keywordflow">if</span>(info().iState==EInterfaceUp)
<a name="l00571"></a>00571 {
<a name="l00572"></a>00572 iConsole->Printf(KInterfaceUp);
<a name="l00573"></a>00573 }
<a name="l00574"></a>00574
<a name="l00575"></a>00575 <span class="comment">//Gets and prints progress notification for the connection.</span>
<a name="l00576"></a>00576 <a class="code" href="class_c_r_connection.html#a147d17095309f15cc007cf20271884ec">GetProgressNotification</a>();
<a name="l00577"></a>00577 User::After(KDelay); <span class="comment">// waits for a while and then proceeds. This helps to get a sequential flow.</span>
<a name="l00578"></a>00578
<a name="l00579"></a>00579 err=<a class="code" href="class_c_r_connection.html#a7cccd60b864d9fe658eae6dcf62d79de">PrepareSocket</a>(); <span class="comment">// Once the socket is ready for data transfer, send and receive operations can be carried out.</span>
<a name="l00580"></a>00580 <span class="keywordflow">if</span>(err!=KErrNone)
<a name="l00581"></a>00581 {
<a name="l00582"></a>00582 iConsole->Printf(KSocketErrNote);
<a name="l00583"></a>00583 <span class="keywordflow">return</span>;
<a name="l00584"></a>00584 }
<a name="l00585"></a>00585 <span class="keywordflow">else</span>
<a name="l00586"></a>00586 {
<a name="l00587"></a>00587 iConsole->Printf(KSocketSetNote);
<a name="l00588"></a>00588 }
<a name="l00589"></a>00589
<a name="l00590"></a>00590 iConsole->Printf(KDataTransferNote);
<a name="l00591"></a>00591
<a name="l00592"></a>00592 <span class="keyword">const</span> TUint KPayLoadSize=512;
<a name="l00593"></a>00593 <span class="comment">//Sends and receives data through the socket.</span>
<a name="l00594"></a>00594 <a class="code" href="class_c_r_connection.html#ad1e2063ee36acfb0434006b4fdbadbb6">DataSendAndReceive</a>(KPayLoadSize);
<a name="l00595"></a>00595
<a name="l00596"></a>00596 <a class="code" href="class_c_r_connection.html#a152237406ecb9b91534c869b0fcc5c54">DataTransferredRequest</a>();<span class="comment">// Gets and prints the amount of data that has been transferred.</span>
<a name="l00597"></a>00597
<a name="l00598"></a>00598 User::After(KDelay);<span class="comment">//Wait for a while, before proceeding. </span>
<a name="l00599"></a>00599
<a name="l00600"></a>00600 <span class="comment">//Makes a request for notification when the interface goes down i.e. the connection closes.</span>
<a name="l00601"></a>00601 iMonitor.AllInterfaceNotification(info,status);
<a name="l00602"></a>00602
<a name="l00603"></a>00603 <span class="comment">// All the operations related to the socket and connection are done, so close both.</span>
<a name="l00604"></a>00604 iSocket.Close();
<a name="l00605"></a>00605 iConsole->Printf(KConnectionClosingNote);
<a name="l00606"></a>00606 iConnection.Close();
<a name="l00607"></a>00607 iConsole->Printf(KWaitNote);
<a name="l00608"></a>00608
<a name="l00609"></a>00609 <span class="comment">//Waits for the 'interface down' notification</span>
<a name="l00610"></a>00610 User::WaitForRequest(status);
<a name="l00611"></a>00611 <span class="keywordflow">if</span>(info().iState==EInterfaceDown)
<a name="l00612"></a>00612 {
<a name="l00613"></a>00613 iConsole->Printf(KInterfaceDown);
<a name="l00614"></a>00614 }
<a name="l00615"></a>00615
<a name="l00616"></a>00616 iConsole->Printf(KContinueNote);
<a name="l00617"></a>00617 iConsole->Getch();
<a name="l00618"></a>00618
<a name="l00619"></a>00619 }
<a name="l00620"></a>00620
<a name="l00631"></a><a class="code" href="class_c_r_connection.html#abcbc56a50819c7293323114ea940583e">00631</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_connection.html#abcbc56a50819c7293323114ea940583e">CRConnection::DemoApiWithDbOverrideL</a>()
<a name="l00632"></a>00632 {
<a name="l00633"></a>00633
<a name="l00634"></a>00634 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KDemoApiWithDbOverride,<span class="stringliteral">"RConnection API with CommDb override\n"</span>);
<a name="l00635"></a>00635 iConsole->ClearScreen();
<a name="l00636"></a>00636 DisplaySectionToDemo(KDemoApiWithDbOverride);
<a name="l00637"></a>00637
<a name="l00638"></a>00638 TRequestStatus status;
<a name="l00639"></a>00639 TInterfaceNotificationBuf info;
<a name="l00640"></a>00640
<a name="l00641"></a>00641 <span class="comment">// Requests notification when the connection is established.</span>
<a name="l00642"></a>00642 <span class="comment">// Notification request is issued before calling Start().</span>
<a name="l00643"></a>00643 iMonitor.AllInterfaceNotification(info,status);
<a name="l00644"></a>00644
<a name="l00645"></a>00645 <span class="comment">//Start an explicit connection with CommDb override. </span>
<a name="l00646"></a>00646 TInt err=<a class="code" href="class_c_r_connection.html#a92ae35c52534f3a5c2bff2d0cb3ebddd">ConnectWithDbOverrideL</a>();
<a name="l00647"></a>00647 <span class="keywordflow">if</span>(err!=KErrNone)
<a name="l00648"></a>00648 <span class="keywordflow">return</span>;
<a name="l00649"></a>00649
<a name="l00650"></a>00650 <span class="comment">//Waits on TRequestStatus until the interface is up.</span>
<a name="l00651"></a>00651 User::WaitForRequest(status);
<a name="l00652"></a>00652 <span class="keywordflow">if</span>(info().iState==EInterfaceUp)
<a name="l00653"></a>00653 {
<a name="l00654"></a>00654 iConsole->Printf(KInterfaceUp);
<a name="l00655"></a>00655 }
<a name="l00656"></a>00656
<a name="l00657"></a>00657 <span class="comment">//Gets and prints progress notification for the connection.</span>
<a name="l00658"></a>00658 <a class="code" href="class_c_r_connection.html#a147d17095309f15cc007cf20271884ec">GetProgressNotification</a>();
<a name="l00659"></a>00659
<a name="l00660"></a>00660 <span class="comment">//Waits for a while before next operation.</span>
<a name="l00661"></a>00661 User::After(KDelay);
<a name="l00662"></a>00662
<a name="l00663"></a>00663 err=<a class="code" href="class_c_r_connection.html#a7cccd60b864d9fe658eae6dcf62d79de">PrepareSocket</a>(); <span class="comment">//Once the socket is ready for data transfer, send and receive operations can be carried out.</span>
<a name="l00664"></a>00664 <span class="keywordflow">if</span>(err!=KErrNone)
<a name="l00665"></a>00665 {
<a name="l00666"></a>00666 iConsole->Printf(KSocketErrNote);
<a name="l00667"></a>00667 <span class="keywordflow">return</span>;
<a name="l00668"></a>00668 }
<a name="l00669"></a>00669 <span class="keywordflow">else</span>
<a name="l00670"></a>00670 {
<a name="l00671"></a>00671 iConsole->Printf(KSocketSetNote);
<a name="l00672"></a>00672 }
<a name="l00673"></a>00673 <span class="comment">//Sends and receives data and requests notification when a threshold amount of data is transferred.</span>
<a name="l00674"></a>00674 <a class="code" href="class_c_r_connection.html#a06a6adfc62452ed190cc1d461cfa1961">DataTransferNotificationRequest</a>();
<a name="l00675"></a>00675 User::After(KDelay);
<a name="l00676"></a>00676
<a name="l00677"></a>00677 <span class="comment">//Makes a request for notification when the interface goes down i.e. the connection closes.</span>
<a name="l00678"></a>00678 iMonitor.AllInterfaceNotification(info,status);
<a name="l00679"></a>00679
<a name="l00680"></a>00680 <span class="comment">//Closes socket </span>
<a name="l00681"></a>00681 iSocket.Close();
<a name="l00682"></a>00682 iConsole->Printf(KConnectionClosingNote);
<a name="l00683"></a>00683
<a name="l00684"></a>00684 <span class="comment">//Closes the connection.</span>
<a name="l00685"></a>00685 iConnection.Close();
<a name="l00686"></a>00686 iConsole->Printf(KWaitNote);
<a name="l00687"></a>00687
<a name="l00688"></a>00688 <span class="comment">//Waits on the TRequestStatus until the interface is down </span>
<a name="l00689"></a>00689 User::WaitForRequest(status);
<a name="l00690"></a>00690 <span class="keywordflow">if</span>(info().iState==EInterfaceDown)
<a name="l00691"></a>00691 {
<a name="l00692"></a>00692 iConsole->Printf(KInterfaceDown);
<a name="l00693"></a>00693 }
<a name="l00694"></a>00694
<a name="l00695"></a>00695 iConsole->Printf(KContinueNote);
<a name="l00696"></a>00696 iConsole->Getch();
<a name="l00697"></a>00697
<a name="l00698"></a>00698 }
<a name="l00699"></a>00699
<a name="l00709"></a><a class="code" href="class_c_r_connection.html#a9eeb4eb377993b2e4cc2c313c953bef1">00709</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_connection.html#a9eeb4eb377993b2e4cc2c313c953bef1">CRConnection::AttachToExistingInterfaceL</a>()
<a name="l00710"></a>00710 {
<a name="l00711"></a>00711
<a name="l00712"></a>00712 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KAttachToConnection,<span class="stringliteral">"Attaching to a connection\n"</span>);
<a name="l00713"></a>00713 iConsole->ClearScreen();
<a name="l00714"></a>00714 DisplaySectionToDemo(KAttachToConnection);
<a name="l00715"></a>00715
<a name="l00716"></a>00716 <span class="comment">// Attaching to a connection is done as follows:</span>
<a name="l00717"></a>00717 <span class="comment">// 1)first open a connection interface.</span>
<a name="l00718"></a>00718 <span class="comment">// 2)on this connection interface, obtain the no. of active connections and their connection info.</span>
<a name="l00719"></a>00719 <span class="comment">// 3)a second connection is opened.</span>
<a name="l00720"></a>00720 <span class="comment">// 4)this 2nd connection is attached to the existing active connection interface.</span>
<a name="l00721"></a>00721
<a name="l00722"></a>00722 RConnection conn;
<a name="l00723"></a>00723
<a name="l00724"></a>00724 <span class="comment">//Opens the first RConnection.</span>
<a name="l00725"></a>00725 TInt err = conn.Open(iSocketServ);
<a name="l00726"></a>00726 <span class="keywordflow">if</span>(err==KErrNone)
<a name="l00727"></a>00727 {
<a name="l00728"></a>00728 CleanupClosePushL(conn);
<a name="l00729"></a>00729 }
<a name="l00730"></a>00730 <span class="keywordflow">else</span>
<a name="l00731"></a>00731 {
<a name="l00732"></a>00732 iConsole->Printf(KOpenErr);
<a name="l00733"></a>00733 <span class="keywordflow">return</span>;
<a name="l00734"></a>00734 }
<a name="l00735"></a>00735
<a name="l00736"></a>00736 <span class="comment">//Opens the 2nd connection. </span>
<a name="l00737"></a>00737 err = iConnection.Open(iSocketServ);
<a name="l00738"></a>00738 <span class="keywordflow">if</span>(err!=KErrNone)
<a name="l00739"></a>00739 {
<a name="l00740"></a>00740 iConsole->Printf(KOpenErr);
<a name="l00741"></a>00741 <span class="keywordflow">return</span>;
<a name="l00742"></a>00742 }
<a name="l00743"></a>00743
<a name="l00744"></a>00744 <span class="comment">//Starts the 1st connection.</span>
<a name="l00745"></a>00745 err=conn.Start();
<a name="l00746"></a>00746 <span class="keywordflow">if</span>(err!=KErrNone)
<a name="l00747"></a>00747 {
<a name="l00748"></a>00748 iConsole->Printf(KStartErr);
<a name="l00749"></a>00749 <span class="keywordflow">return</span>;
<a name="l00750"></a>00750 }
<a name="l00751"></a>00751
<a name="l00752"></a>00752 <span class="comment">// Enumerates the total number of connections on the 1st connection interface.</span>
<a name="l00753"></a>00753 <span class="comment">// This call returns a count of 1. </span>
<a name="l00754"></a>00754 TUint connectionCount;
<a name="l00755"></a>00755 err = conn.EnumerateConnections(connectionCount);
<a name="l00756"></a>00756 <span class="keywordflow">if</span>((err != KErrNone) || (connectionCount < 1))
<a name="l00757"></a>00757 {
<a name="l00758"></a>00758 <span class="keywordflow">return</span>;
<a name="l00759"></a>00759 }
<a name="l00760"></a>00760
<a name="l00761"></a>00761
<a name="l00762"></a>00762 <span class="comment">// Gets connection info for the 1st connection (conn) which will be used by the </span>
<a name="l00763"></a>00763 <span class="comment">// 2nd connection to attach to. </span>
<a name="l00764"></a>00764 TConnectionInfoBuf connectionInfo;
<a name="l00765"></a>00765 err = conn.GetConnectionInfo(connectionCount, connectionInfo); <span class="comment">// gets connection info about the indexed connection</span>
<a name="l00766"></a>00766 <span class="comment">// (the 1st connection).</span>
<a name="l00767"></a>00767 <span class="keywordflow">if</span>(err != KErrNone)
<a name="l00768"></a>00768 {
<a name="l00769"></a>00769 <span class="keywordflow">return</span>;
<a name="l00770"></a>00770 }
<a name="l00771"></a>00771
<a name="l00772"></a>00772 <span class="comment">// Attaches iConnection to the existing underlying interface.</span>
<a name="l00773"></a>00773 <span class="comment">// The connection is used for normal data transfer.</span>
<a name="l00774"></a>00774 <span class="comment">// Both connections are now actively associated with an interface.</span>
<a name="l00775"></a>00775 err = iConnection.Attach(connectionInfo,RConnection::EAttachTypeNormal);
<a name="l00776"></a>00776 <span class="keywordflow">if</span>(err==KErrNone)
<a name="l00777"></a>00777 {
<a name="l00778"></a>00778 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KAttachNote,<span class="stringliteral">"Attached to interface\n"</span>);
<a name="l00779"></a>00779 iConsole->Printf(KAttachNote);
<a name="l00780"></a>00780 }
<a name="l00781"></a>00781 <span class="keywordflow">else</span>
<a name="l00782"></a>00782 <span class="keywordflow">return</span>;
<a name="l00783"></a>00783
<a name="l00784"></a>00784 <span class="comment">// Gets progress info and prints it to the console. </span>
<a name="l00785"></a>00785 TNifProgress progress;
<a name="l00786"></a>00786 err = iConnection.Progress(progress);
<a name="l00787"></a>00787 <span class="keywordflow">if</span>(err==KErrNone&&progress.iError==KErrNone)
<a name="l00788"></a>00788 {
<a name="l00789"></a>00789 <span class="keywordflow">if</span>((TUint)(progress.iStage)==KConnectionUp)
<a name="l00790"></a>00790 iConsole->Printf(KConnectionUpNote);
<a name="l00791"></a>00791 }
<a name="l00792"></a>00792
<a name="l00793"></a>00793 User::After(KDelay); <span class="comment">//waits for a while before proceeding.</span>
<a name="l00794"></a>00794
<a name="l00795"></a>00795 iConsole->Printf(KConnectionClosingNote);
<a name="l00796"></a>00796
<a name="l00797"></a>00797 <span class="comment">//closes both connections.</span>
<a name="l00798"></a>00798 iConnection.Close();
<a name="l00799"></a>00799 CleanupStack::PopAndDestroy(&conn); <span class="comment">//conn.</span>
<a name="l00800"></a>00800
<a name="l00801"></a>00801 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KConnectionClosedNote,<span class="stringliteral">"Connection Closed\n"</span>);
<a name="l00802"></a>00802 iConsole->Printf(KConnectionClosedNote);
<a name="l00803"></a>00803
<a name="l00804"></a>00804 }
<a name="l00805"></a>00805
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