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Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_connector_8cpp_source.html
author Dominic Pinkman <dominic.pinkman@nokia.com>
Fri, 13 Aug 2010 16:47:46 +0100
changeset 14 578be2adaf3e
parent 6 43e37759235e
permissions -rw-r--r--
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
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<title>TB9.2 Example Applications: examples/ForumNokia/BluetoothPMPExample/src/Connector.cpp Source File</title>
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<link href="tabs.css" rel="stylesheet" type="text/css"/>
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<link href="doxygen.css" rel="stylesheet" type="text/css"/>
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</head>
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<body>
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<!-- Generated by Doxygen 1.6.2 -->
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<h1>examples/ForumNokia/BluetoothPMPExample/src/Connector.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
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<a name="l00002"></a>00002 <span class="comment"> * Copyright © 2009 Nokia Corporation.</span>
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<a name="l00003"></a>00003 <span class="comment"> */</span>
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<a name="l00004"></a>00004
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<a name="l00005"></a>00005 <span class="comment">// INCLUDE FILES</span>
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<a name="l00006"></a>00006 <span class="preprocessor">#include &quot;Connector.h&quot;</span>
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<a name="l00007"></a>00007 <span class="preprocessor">#include &quot;BluetoothPMPExampleApp.h&quot;</span>
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<a name="l00008"></a>00008
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<a name="l00009"></a>00009 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KRfComm,<span class="stringliteral">&quot;RFCOMM&quot;</span>);
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<a name="l00010"></a>00010
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<a name="l00011"></a><a class="code" href="class_c_connector.html#a0dc0760eb3b611c82f28b184f49d6bd7">00011</a> <a class="code" href="class_c_connector.html">CConnector</a>* <a class="code" href="class_c_connector.html#a0dc0760eb3b611c82f28b184f49d6bd7">CConnector::NewL</a>(<a class="code" href="class_m_connector_observer.html">MConnectorObserver</a>&amp; aObserver,
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<a name="l00012"></a>00012                              RSocketServ&amp; aSocketServ)
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<a name="l00013"></a>00013     {
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<a name="l00014"></a>00014     <a class="code" href="class_c_connector.html">CConnector</a>* <span class="keyword">self</span> = <a class="code" href="class_c_connector.html#acf4a1927ce9786c1b8010b9cae1d5688">CConnector::NewLC</a>(aObserver, aSocketServ);
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<a name="l00015"></a>00015     CleanupStack::Pop(<span class="keyword">self</span>);
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<a name="l00016"></a>00016     <span class="keywordflow">return</span> <span class="keyword">self</span>;
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<a name="l00017"></a>00017     }
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<a name="l00018"></a>00018
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<a name="l00019"></a>00019
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<a name="l00020"></a><a class="code" href="class_c_connector.html#acf4a1927ce9786c1b8010b9cae1d5688">00020</a> <a class="code" href="class_c_connector.html">CConnector</a>* <a class="code" href="class_c_connector.html#acf4a1927ce9786c1b8010b9cae1d5688">CConnector::NewLC</a>(<a class="code" href="class_m_connector_observer.html">MConnectorObserver</a>&amp; aObserver,
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<a name="l00021"></a>00021                               RSocketServ&amp; aSocketServ)
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<a name="l00022"></a>00022     {
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<a name="l00023"></a>00023     <a class="code" href="class_c_connector.html">CConnector</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_connector.html">CConnector</a>(aObserver, aSocketServ);
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<a name="l00024"></a>00024     CleanupStack::PushL(<span class="keyword">self</span>);
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<a name="l00025"></a>00025     <span class="keyword">self</span>-&gt;ConstructL();
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<a name="l00026"></a>00026     <span class="keywordflow">return</span> <span class="keyword">self</span>;
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<a name="l00027"></a>00027     }
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<a name="l00028"></a>00028
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<a name="l00029"></a>00029
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<a name="l00030"></a>00030 <span class="keywordtype">void</span> CConnector::ConstructL()
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<a name="l00031"></a>00031     {
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<a name="l00032"></a>00032     }
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<a name="l00033"></a>00033
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<a name="l00034"></a>00034
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<a name="l00035"></a>00035 CConnector::CConnector(<a class="code" href="class_m_connector_observer.html">MConnectorObserver</a>&amp; aObserver,
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<a name="l00036"></a>00036                        RSocketServ&amp; aSocketServ):
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<a name="l00037"></a>00037     CActive(CActive::EPriorityStandard),
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<a name="l00038"></a>00038     iObserver(aObserver),
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<a name="l00039"></a>00039     iSocketServ(aSocketServ),
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<a name="l00040"></a>00040     iState(ENone)
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<a name="l00041"></a>00041     {
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<a name="l00042"></a>00042     CActiveScheduler::Add(<span class="keyword">this</span>);
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<a name="l00043"></a>00043     }
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<a name="l00044"></a>00044
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<a name="l00045"></a>00045
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<a name="l00046"></a><a class="code" href="class_c_connector.html#a182734207e03cf9b72a56fc417908a1d">00046</a> <a class="code" href="class_c_connector.html#a182734207e03cf9b72a56fc417908a1d">CConnector::~CConnector</a>()
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<a name="l00047"></a>00047     {
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<a name="l00048"></a>00048     Cancel();
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<a name="l00049"></a>00049     <span class="comment">// disconnect and kill socket</span>
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<a name="l00050"></a>00050     <a class="code" href="class_c_connector.html#aa7bef8230682e64f354bec585426fdb5">Disconnect</a>();
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<a name="l00051"></a>00051     }
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<a name="l00052"></a>00052
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<a name="l00053"></a>00053
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<a name="l00054"></a><a class="code" href="class_c_connector.html#ad00a6a26fea8373614265186057cf042">00054</a> <span class="keywordtype">void</span> <a class="code" href="class_c_connector.html#ad00a6a26fea8373614265186057cf042">CConnector::DoCancel</a>()
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<a name="l00055"></a>00055     {
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<a name="l00056"></a>00056     iSock.CancelAll();
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<a name="l00057"></a>00057     }
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<a name="l00058"></a>00058
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<a name="l00059"></a>00059
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<a name="l00060"></a>00060 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00061"></a>00061 <span class="comment">// CConnector::ConnectL(THostName aName, TBTDevAddr aAddr, TInt aPort)</span>
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<a name="l00062"></a>00062 <span class="comment">//</span>
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<a name="l00063"></a>00063 <span class="comment">// create a connection to given address on given port.  </span>
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<a name="l00064"></a>00064 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00065"></a><a class="code" href="class_c_connector.html#a3c5da0fe4f3d9a04528d9f6f5a19755b">00065</a> TRequestStatus <a class="code" href="class_c_connector.html#a3c5da0fe4f3d9a04528d9f6f5a19755b">CConnector::ConnectL</a>(THostName aName, TBTDevAddr aAddr,
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<a name="l00066"></a>00066                                     TInt aPort)
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<a name="l00067"></a>00067     {
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<a name="l00068"></a>00068     iName=aName;
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<a name="l00069"></a>00069     iAddr=aAddr;
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<a name="l00070"></a>00070     iPort=aPort;
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<a name="l00071"></a>00071
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<a name="l00072"></a>00072     <span class="comment">// load protocol, RFCOMM</span>
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<a name="l00073"></a>00073     TProtocolDesc pdesc;
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<a name="l00074"></a>00074     User::LeaveIfError(iSocketServ.FindProtocol(KRfComm(), pdesc));
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<a name="l00075"></a>00075
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<a name="l00076"></a>00076     <span class="comment">// open socket</span>
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<a name="l00077"></a>00077     User::LeaveIfError(iSock.Open(iSocketServ, KRfComm));
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<a name="l00078"></a>00078     <span class="comment">// set address and port</span>
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<a name="l00079"></a>00079     TBTSockAddr addr;
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<a name="l00080"></a>00080     addr.SetBTAddr(iAddr);
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<a name="l00081"></a>00081     addr.SetPort(iPort);
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<a name="l00082"></a>00082
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<a name="l00083"></a>00083     <span class="comment">// connect socket</span>
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<a name="l00084"></a>00084     TRequestStatus status;
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<a name="l00085"></a>00085     iSock.Connect(addr, status);
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<a name="l00086"></a>00086     User::WaitForRequest(status);
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<a name="l00087"></a>00087     <span class="keywordflow">if</span> ( status!=KErrNone )
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<a name="l00088"></a>00088         {
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<a name="l00089"></a>00089         <span class="comment">// error opening conn</span>
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<a name="l00090"></a>00090         <span class="keywordflow">return</span> status;
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<a name="l00091"></a>00091         }
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   102
 
<a name="l00092"></a>00092
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   103
 
<a name="l00093"></a>00093     iState=EConnecting;
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   104
 
<a name="l00094"></a>00094     WaitAndReceive();
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   105
 
<a name="l00095"></a>00095     <span class="keywordflow">return</span> status;
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<a name="l00096"></a>00096     }
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   107
 
<a name="l00097"></a>00097
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   108
 
<a name="l00098"></a>00098
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   109
 
<a name="l00099"></a>00099 <span class="comment">// ----------------------------------------------------------------------------</span>
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   110
 
<a name="l00100"></a>00100 <span class="comment">// CConnector::Disconnect()</span>
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   111
 
<a name="l00101"></a>00101 <span class="comment">//</span>
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   112
 
<a name="l00102"></a>00102 <span class="comment">// disconnect from remote device, shutdown connected socket</span>
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   113
 
<a name="l00103"></a>00103 <span class="comment">// ----------------------------------------------------------------------------</span>
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   114
 
<a name="l00104"></a><a class="code" href="class_c_connector.html#aa7bef8230682e64f354bec585426fdb5">00104</a> <span class="keywordtype">void</span> <a class="code" href="class_c_connector.html#aa7bef8230682e64f354bec585426fdb5">CConnector::Disconnect</a>()
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   115
 
<a name="l00105"></a>00105     {
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   116
 
<a name="l00106"></a>00106     TRequestStatus status;
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   117
 
<a name="l00107"></a>00107     <span class="comment">// shutdown socket</span>
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   118
 
<a name="l00108"></a>00108     <span class="keywordflow">if</span> (iState == ENone)
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   119
 
<a name="l00109"></a>00109         {
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<a name="l00110"></a>00110         <span class="keywordflow">return</span>;
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   121
 
<a name="l00111"></a>00111         }
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<a name="l00112"></a>00112     iSock.Shutdown(RSocket::ENormal, status);
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   123
 
<a name="l00113"></a>00113     User::WaitForRequest(status);
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   124
 
<a name="l00114"></a>00114     iSock.Close();
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<a name="l00115"></a>00115     }
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   126
 
<a name="l00116"></a>00116
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   127
 
<a name="l00117"></a>00117
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   128
 
<a name="l00118"></a>00118 <span class="comment">// ----------------------------------------------------------------------------</span>
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   129
 
<a name="l00119"></a>00119 <span class="comment">// CConnector::SendData(const TDesC8&amp; aData)</span>
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   130
 
<a name="l00120"></a>00120 <span class="comment">//</span>
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   131
 
<a name="l00121"></a>00121 <span class="comment">// send given data to remote device, write to connected socket</span>
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<a name="l00122"></a>00122 <span class="comment">// ----------------------------------------------------------------------------</span>
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   133
 
<a name="l00123"></a><a class="code" href="class_c_connector.html#a2eecddc3d4f5ff157d17820c0add199b">00123</a> <span class="keywordtype">void</span> <a class="code" href="class_c_connector.html#a2eecddc3d4f5ff157d17820c0add199b">CConnector::SendData</a>(<span class="keyword">const</span> TDesC8&amp; aData)
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   134
 
<a name="l00124"></a>00124     {
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   135
 
<a name="l00125"></a>00125     <span class="comment">// cancel any read requests on socket</span>
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<a name="l00126"></a>00126     iSock.CancelRead();
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   137
 
<a name="l00127"></a>00127     Cancel();
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   138
 
<a name="l00128"></a>00128     <span class="comment">// send message</span>
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   139
 
<a name="l00129"></a>00129     iState=ESending;
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<a name="l00130"></a>00130     iSock.Write(aData, iStatus);
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   141
 
<a name="l00131"></a>00131     SetActive();
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<a name="l00132"></a>00132     }
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<a name="l00133"></a>00133
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<a name="l00134"></a>00134
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   145
 
<a name="l00135"></a>00135 <span class="comment">// ----------------------------------------------------------------------------</span>
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   146
 
<a name="l00136"></a>00136 <span class="comment">// CConnector::WaitAndReceiveL()</span>
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<a name="l00137"></a>00137 <span class="comment">//</span>
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   148
 
<a name="l00138"></a>00138 <span class="comment">// wait for and receive data from remote device, read connected socket</span>
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   149
 
<a name="l00139"></a>00139 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00140"></a>00140 <span class="keywordtype">void</span> CConnector::WaitAndReceive()
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   151
 
<a name="l00141"></a>00141     {
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   152
 
<a name="l00142"></a>00142     <span class="comment">// cancel pending operations</span>
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<a name="l00143"></a>00143     iSock.CancelRead();
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<a name="l00144"></a>00144     Cancel();
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   155
 
<a name="l00145"></a>00145     <span class="comment">// receive data from socket</span>
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<a name="l00146"></a>00146     iState=EWaiting;
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<a name="l00147"></a>00147     iSock.RecvOneOrMore(iBuffer, 0, iStatus, iLen);
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<a name="l00148"></a>00148     SetActive();
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<a name="l00149"></a>00149     }
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<a name="l00150"></a>00150
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   161
 
<a name="l00151"></a>00151
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<a name="l00152"></a><a class="code" href="class_c_connector.html#ad8e86b9b23abc394fc0451a3ea82c81a">00152</a> <span class="keywordtype">void</span> <a class="code" href="class_c_connector.html#ad8e86b9b23abc394fc0451a3ea82c81a">CConnector::RunL</a>()
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<a name="l00153"></a>00153     {
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<a name="l00154"></a>00154     <span class="keywordflow">if</span> ( iStatus!=KErrNone )
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<a name="l00155"></a>00155         {
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<a name="l00156"></a>00156         iObserver.HandleConnectorErrorL(iName,iStatus.Int());
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<a name="l00157"></a>00157         <span class="keywordflow">return</span>;
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<a name="l00158"></a>00158         }
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   169
 
<a name="l00159"></a>00159
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<a name="l00160"></a>00160     <span class="keywordflow">switch</span> (iState)
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<a name="l00161"></a>00161         {
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<a name="l00162"></a>00162         <span class="keywordflow">case</span> EConnecting:
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<a name="l00163"></a>00163             {
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<a name="l00164"></a>00164             <span class="comment">// wait incoming data on socket</span>
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<a name="l00165"></a>00165             WaitAndReceive();
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<a name="l00166"></a>00166             <span class="keywordflow">break</span>;
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<a name="l00167"></a>00167             }
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<a name="l00168"></a>00168         <span class="keywordflow">case</span> EWaiting:
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<a name="l00169"></a>00169             {
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<a name="l00170"></a>00170             <span class="comment">// we got incoming data!</span>
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<a name="l00171"></a>00171             HBufC* text = <a class="code" href="class_c_connector.html#acf4a1927ce9786c1b8010b9cae1d5688">HBufC::NewLC</a>(iBuffer.Length());
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<a name="l00172"></a>00172             text-&gt;Des().Copy(iBuffer);
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   183
 
<a name="l00173"></a>00173             <span class="comment">// observer will handle data</span>
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   184
 
<a name="l00174"></a>00174             HandleConnectorDataReceivedL(iName, *text);
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<a name="l00175"></a>00175             CleanupStack::PopAndDestroy(text);
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<a name="l00176"></a>00176
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<a name="l00177"></a>00177             <span class="comment">// start expecting new incoming data</span>
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<a name="l00178"></a>00178             WaitAndReceive();
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<a name="l00179"></a>00179             <span class="keywordflow">break</span>;
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<a name="l00180"></a>00180             }
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<a name="l00181"></a>00181         <span class="keywordflow">case</span> ESending:
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<a name="l00182"></a>00182             {
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   193
 
<a name="l00183"></a>00183             <span class="comment">// tried to send a message</span>
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<a name="l00184"></a>00184             <span class="keywordflow">if</span>(iState!=KErrNone)
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   195
 
<a name="l00185"></a>00185                 {
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   196
 
<a name="l00186"></a>00186                 <span class="comment">// Add error handling / socket re-read code</span>
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   197
 
<a name="l00187"></a>00187                 <span class="comment">// here, not implemented in this example</span>
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<a name="l00188"></a>00188                 }
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   199
 
<a name="l00189"></a>00189
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<a name="l00190"></a>00190             <span class="comment">// start expecting new incoming data</span>
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<a name="l00191"></a>00191             WaitAndReceive();
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<a name="l00192"></a>00192             <span class="keywordflow">break</span>;
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<a name="l00193"></a>00193             }
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<a name="l00194"></a>00194         <span class="keywordflow">default</span>:
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<a name="l00195"></a>00195             <span class="keywordflow">break</span>;
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<a name="l00196"></a>00196         }
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<a name="l00197"></a>00197     }
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<a name="l00198"></a>00198
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<a name="l00199"></a>00199 TInt CConnector::RunError(TInt <span class="comment">/*aError*/</span>)
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<a name="l00200"></a>00200     {
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<a name="l00201"></a>00201     <span class="comment">// Add error handling here, not implemented in this example</span>
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<a name="l00202"></a>00202     <span class="keywordflow">return</span> KErrNone;
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<a name="l00203"></a>00203     }
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<a name="l00204"></a>00204
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<a name="l00205"></a>00205 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00206"></a>00206 <span class="comment">// CConnector::HandleConnectorDataReceivedL(THostNama aName, TDesC&amp; aData)</span>
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<a name="l00207"></a>00207 <span class="comment">//</span>
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<a name="l00208"></a>00208 <span class="comment">// a callback to observer indicating that connector has received data</span>
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<a name="l00209"></a>00209 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00210"></a>00210 <span class="keywordtype">void</span> CConnector::HandleConnectorDataReceivedL(THostName aName, <span class="keyword">const</span> TDesC&amp; aData)
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<a name="l00211"></a>00211 {
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<a name="l00212"></a>00212     iObserver.<a class="code" href="class_m_connector_observer.html#afe3b74e577328b88ae7a9e984b7895a0">HandleConnectorDataReceivedL</a>(aName, aData);
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<a name="l00213"></a>00213 }
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<a name="l00214"></a>00214
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</pre></div></div>
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<hr size="1"/><address style="text-align: right;"><small>Generated by&nbsp;
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address>
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</body>
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</html>
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