Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_device_discoverer_8cpp_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>TB9.2 Example Applications: examples/ForumNokia/BluetoothPMPExample/src/DeviceDiscoverer.cpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="doxygen.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<!-- Generated by Doxygen 1.6.2 -->
<h1>examples/ForumNokia/BluetoothPMPExample/src/DeviceDiscoverer.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"> * Copyright © 2009 Nokia Corporation.</span>
<a name="l00003"></a>00003 <span class="comment"> */</span>
<a name="l00004"></a>00004
<a name="l00005"></a>00005 <span class="comment">// INCLUDE FILES</span>
<a name="l00006"></a>00006 <span class="preprocessor">#include "DeviceDiscoverer.h"</span>
<a name="l00007"></a>00007
<a name="l00008"></a>00008 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KBTLinkManagerTxt,<span class="stringliteral">"BTLinkManager"</span>);
<a name="l00009"></a>00009
<a name="l00010"></a><a class="code" href="class_c_device_discoverer.html#a398f58248e421a888c463adcc53dc321">00010</a> <a class="code" href="class_c_device_discoverer.html">CDeviceDiscoverer</a>* <a class="code" href="class_c_device_discoverer.html#a398f58248e421a888c463adcc53dc321">CDeviceDiscoverer::NewL</a>(RSocketServ& aSocketServ,
<a name="l00011"></a>00011 <a class="code" href="class_m_device_disco_observer.html">MDeviceDiscoObserver</a>& aObserver)
<a name="l00012"></a>00012 {
<a name="l00013"></a>00013 <a class="code" href="class_c_device_discoverer.html">CDeviceDiscoverer</a>* <span class="keyword">self</span> = <a class="code" href="class_c_device_discoverer.html#ad009466530d86638c239aebab062d0b5">CDeviceDiscoverer::NewLC</a>(aSocketServ, aObserver);
<a name="l00014"></a>00014 CleanupStack::Pop(<span class="keyword">self</span>);
<a name="l00015"></a>00015 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00016"></a>00016 }
<a name="l00017"></a>00017
<a name="l00018"></a>00018
<a name="l00019"></a><a class="code" href="class_c_device_discoverer.html#ad009466530d86638c239aebab062d0b5">00019</a> <a class="code" href="class_c_device_discoverer.html">CDeviceDiscoverer</a>* <a class="code" href="class_c_device_discoverer.html#ad009466530d86638c239aebab062d0b5">CDeviceDiscoverer::NewLC</a>(RSocketServ& aSocketServ,
<a name="l00020"></a>00020 <a class="code" href="class_m_device_disco_observer.html">MDeviceDiscoObserver</a>& aObserver)
<a name="l00021"></a>00021 {
<a name="l00022"></a>00022 <a class="code" href="class_c_device_discoverer.html">CDeviceDiscoverer</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_device_discoverer.html">CDeviceDiscoverer</a>(aSocketServ,
<a name="l00023"></a>00023 aObserver);
<a name="l00024"></a>00024 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00025"></a>00025 <span class="keyword">self</span>->ConstructL();
<a name="l00026"></a>00026 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00027"></a>00027 }
<a name="l00028"></a>00028
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="keywordtype">void</span> CDeviceDiscoverer::ConstructL()
<a name="l00031"></a>00031 {
<a name="l00032"></a>00032 }
<a name="l00033"></a>00033
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00036"></a>00036 <span class="comment">// CDeviceDiscoverer::CDeviceDiscoverer(RSocketServ *aSocketServ,</span>
<a name="l00037"></a>00037 <span class="comment">// MDeviceDiscoObserver *aObserver)</span>
<a name="l00038"></a>00038 <span class="comment">//</span>
<a name="l00039"></a>00039 <span class="comment">// constructor</span>
<a name="l00040"></a>00040 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00041"></a>00041 CDeviceDiscoverer::CDeviceDiscoverer(RSocketServ& aSocketServ,
<a name="l00042"></a>00042 <a class="code" href="class_m_device_disco_observer.html">MDeviceDiscoObserver</a>& aObserver):
<a name="l00043"></a>00043 CActive(CActive::EPriorityStandard),
<a name="l00044"></a>00044 iSocketServ(aSocketServ),
<a name="l00045"></a>00045 iObserver(aObserver)
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047 CActiveScheduler::Add(<span class="keyword">this</span>);
<a name="l00048"></a>00048 }
<a name="l00049"></a>00049
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00052"></a>00052 <span class="comment">// CDeviceDiscoverer::~CDeviceDiscoverer()</span>
<a name="l00053"></a>00053 <span class="comment">//</span>
<a name="l00054"></a>00054 <span class="comment">// destructor</span>
<a name="l00055"></a>00055 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00056"></a><a class="code" href="class_c_device_discoverer.html#a338c70f66e1dedaa7ce4ad694168aa93">00056</a> <a class="code" href="class_c_device_discoverer.html#a338c70f66e1dedaa7ce4ad694168aa93">CDeviceDiscoverer::~CDeviceDiscoverer</a>()
<a name="l00057"></a>00057 {
<a name="l00058"></a>00058 <span class="comment">// cancel active object</span>
<a name="l00059"></a>00059 Cancel();
<a name="l00060"></a>00060 iResolver.Close();
<a name="l00061"></a>00061 }
<a name="l00062"></a>00062
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00065"></a>00065 <span class="comment">// CDeviceDiscoverer::DiscoverDevicesL(TDeviceDataList *aDevDataList)</span>
<a name="l00066"></a>00066 <span class="comment">//</span>
<a name="l00067"></a>00067 <span class="comment">// discover remote devices. RHostResolver will be used to do the discovery.</span>
<a name="l00068"></a>00068 <span class="comment">// any found devices will be placed in aDevDataList.</span>
<a name="l00069"></a>00069 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00070"></a><a class="code" href="class_c_device_discoverer.html#ac48267243d969875fb2b313ff77dbdc6">00070</a> <span class="keywordtype">void</span> <a class="code" href="class_c_device_discoverer.html#ac48267243d969875fb2b313ff77dbdc6">CDeviceDiscoverer::DiscoverDevicesL</a>(TDeviceDataList* aDevDataList)
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072 <span class="keywordflow">if</span> (!IsActive())
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074 <span class="comment">// initialize host resolver</span>
<a name="l00075"></a>00075 <span class="comment">// load protocol for discovery</span>
<a name="l00076"></a>00076 TProtocolDesc pdesc;
<a name="l00077"></a>00077 User::LeaveIfError(iSocketServ.FindProtocol(KBTLinkManagerTxt(), pdesc));
<a name="l00078"></a>00078
<a name="l00079"></a>00079 iResolver.Close();
<a name="l00080"></a>00080 User::LeaveIfError(iResolver.Open(iSocketServ, pdesc.iAddrFamily, pdesc.iProtocol));
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="comment">// wipe existing device data list, start fresh</span>
<a name="l00083"></a>00083 iDevDataList=aDevDataList;
<a name="l00084"></a>00084 iDevDataList->Reset();
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="comment">// start device discovery by invoking remote address lookup</span>
<a name="l00087"></a>00087 <span class="preprocessor"> #ifdef ENABLE_LIAC</span>
<a name="l00088"></a>00088 <span class="preprocessor"></span> TUint myIAC( iLIAC?KLIAC:KGIAC );
<a name="l00089"></a>00089
<a name="l00090"></a>00090 iAddr.SetIAC( myIAC );
<a name="l00091"></a>00091 <span class="preprocessor"> #else</span>
<a name="l00092"></a>00092 <span class="preprocessor"></span> iAddr.SetIAC( KGIAC );
<a name="l00093"></a>00093 <span class="preprocessor"> #endif</span>
<a name="l00094"></a>00094 <span class="preprocessor"></span>
<a name="l00095"></a>00095 iAddr.SetAction(KHostResInquiry|KHostResName|KHostResIgnoreCache);
<a name="l00096"></a>00096 iResolver.GetByAddress(iAddr, iEntry, iStatus);
<a name="l00097"></a>00097 SetActive();
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099 <span class="keywordflow">else</span>
<a name="l00100"></a>00100 {
<a name="l00101"></a>00101 User::Leave(KErrNotReady);
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104
<a name="l00105"></a>00105
<a name="l00106"></a><a class="code" href="class_c_device_discoverer.html#a827525f4196483e7648fa0941b04c401">00106</a> <span class="keywordtype">void</span> <a class="code" href="class_c_device_discoverer.html#a827525f4196483e7648fa0941b04c401">CDeviceDiscoverer::RunL</a>()
<a name="l00107"></a>00107 {
<a name="l00108"></a>00108 <span class="comment">// RHostResolver.GetByAddress(..) has completed, process results</span>
<a name="l00109"></a>00109 <span class="keywordflow">if</span> ( iStatus!=KErrNone )
<a name="l00110"></a>00110 {
<a name="l00111"></a>00111 <span class="comment">// all devices (if any) done, notify </span>
<a name="l00112"></a>00112 <span class="keywordflow">if</span> (iDevDataList->Count()>0)
<a name="l00113"></a>00113 {
<a name="l00114"></a>00114 iObserver.<a class="code" href="class_m_device_disco_observer.html#a0c81cc1105d340428c4ec9ab792b3d8c">HandleDeviceDiscoveryComplete</a>(KErrNone);
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116 <span class="keywordflow">else</span>
<a name="l00117"></a>00117 {
<a name="l00118"></a>00118 iObserver.<a class="code" href="class_m_device_disco_observer.html#a0c81cc1105d340428c4ec9ab792b3d8c">HandleDeviceDiscoveryComplete</a>(KErrNotFound);
<a name="l00119"></a>00119 }
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121 <span class="keywordflow">else</span>
<a name="l00122"></a>00122 {
<a name="l00123"></a>00123 <span class="comment">// new device data entry</span>
<a name="l00124"></a>00124 <a class="code" href="struct_t_device_data.html">TDeviceData</a> *devData = <span class="keyword">new</span> (ELeave) <a class="code" href="struct_t_device_data.html">TDeviceData</a>();
<a name="l00125"></a>00125 devData->iDeviceName = iEntry().iName;
<a name="l00126"></a>00126 devData->iDeviceAddr =
<a name="l00127"></a>00127 <span class="keyword">static_cast<</span>TBTSockAddr<span class="keyword">></span>(iEntry().iAddr).BTAddr();
<a name="l00128"></a>00128 devData->iDeviceServicePort = 0;
<a name="l00129"></a>00129 <span class="comment">// add device data entry</span>
<a name="l00130"></a>00130 iDevDataList->Append(devData);
<a name="l00131"></a>00131
<a name="l00132"></a>00132 iObserver.<a class="code" href="class_m_device_disco_observer.html#ac2f21c5261b18e23581d9c59d8dd8493">DeviceDiscovered</a>(*devData);
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="comment">// get next discovered device</span>
<a name="l00135"></a>00135 iResolver.Next(iEntry, iStatus);
<a name="l00136"></a>00136 <span class="comment">// wait for resolver to complete</span>
<a name="l00137"></a>00137 SetActive();
<a name="l00138"></a>00138 }
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140
<a name="l00141"></a><a class="code" href="class_c_device_discoverer.html#a55bb42dd0eeea3054482d55cbfb61332">00141</a> <span class="keywordtype">void</span> <a class="code" href="class_c_device_discoverer.html#a55bb42dd0eeea3054482d55cbfb61332">CDeviceDiscoverer::DoCancel</a>()
<a name="l00142"></a>00142 {
<a name="l00143"></a>00143 iResolver.Cancel();
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00147"></a>00147 <span class="comment">// CDeviceDiscoverer::HasDevices()</span>
<a name="l00148"></a>00148 <span class="comment">//</span>
<a name="l00149"></a>00149 <span class="comment">// returns true if any devices were discovered</span>
<a name="l00150"></a>00150 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00151"></a><a class="code" href="class_c_device_discoverer.html#a53754a551f4ba92b473cfaa08143d73c">00151</a> TBool <a class="code" href="class_c_device_discoverer.html#a53754a551f4ba92b473cfaa08143d73c">CDeviceDiscoverer::HasDevices</a>()
<a name="l00152"></a>00152 {
<a name="l00153"></a>00153 TBool exists = EFalse;
<a name="l00154"></a>00154
<a name="l00155"></a>00155 <span class="keywordflow">if</span> (iDevDataList)
<a name="l00156"></a>00156 {
<a name="l00157"></a>00157 <span class="keywordflow">if</span> (iDevDataList->Count() > 0)
<a name="l00158"></a>00158 {
<a name="l00159"></a>00159 exists = ETrue;
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161 }
<a name="l00162"></a>00162 <span class="keywordflow">return</span> exists;
<a name="l00163"></a>00163 }
<a name="l00164"></a>00164
<a name="l00165"></a>00165 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00166"></a>00166 <span class="comment">// CBluetoothPMPExampleEngine::SetLIAC</span>
<a name="l00167"></a>00167 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00168"></a>00168 <span class="preprocessor">#ifdef ENABLE_LIAC</span>
<a name="l00169"></a>00169 <span class="preprocessor"></span><span class="keywordtype">void</span> CDeviceDiscoverer::SetLIAC( TBool aState )
<a name="l00170"></a>00170 {
<a name="l00171"></a>00171 iLIAC = aState;
<a name="l00172"></a>00172 }
<a name="l00173"></a>00173 <span class="preprocessor">#endif</span>
<a name="l00174"></a>00174 <span class="preprocessor"></span>
<a name="l00175"></a>00175 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00176"></a>00176 <span class="comment">// CBluetoothPMPExampleEngine::StopDiscovery</span>
<a name="l00177"></a>00177 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00178"></a><a class="code" href="class_c_device_discoverer.html#aba19673b682f694b38b5e58ddecaf2b6">00178</a> <span class="keywordtype">void</span> <a class="code" href="class_c_device_discoverer.html#aba19673b682f694b38b5e58ddecaf2b6">CDeviceDiscoverer::StopDiscovery</a>()
<a name="l00179"></a>00179 {
<a name="l00180"></a>00180 Cancel();
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="keywordflow">if</span> (<a class="code" href="class_c_device_discoverer.html#a53754a551f4ba92b473cfaa08143d73c">HasDevices</a>())
<a name="l00183"></a>00183 {
<a name="l00184"></a>00184 iObserver.<a class="code" href="class_m_device_disco_observer.html#a0c81cc1105d340428c4ec9ab792b3d8c">HandleDeviceDiscoveryComplete</a>(KErrNone);
<a name="l00185"></a>00185 }
<a name="l00186"></a>00186 <span class="keywordflow">else</span>
<a name="l00187"></a>00187 {
<a name="l00188"></a>00188 iObserver.<a class="code" href="class_m_device_disco_observer.html#a0c81cc1105d340428c4ec9ab792b3d8c">HandleDeviceDiscoveryComplete</a>(KErrNotFound);
<a name="l00189"></a>00189 }
<a name="l00190"></a>00190 }
</pre></div></div>
<hr size="1"/><address style="text-align: right;"><small>Generated by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address>
</body>
</html>