Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_service_advertiser_8cpp_source.html
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<h1>examples/ForumNokia/BluetoothPMPExample/src/ServiceAdvertiser.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 <btmanclient.h></span>
<a name="l00007"></a>00007 <span class="preprocessor">#include "ServiceAdvertiser.h"</span>
<a name="l00008"></a>00008
<a name="l00009"></a>00009 <span class="comment">// see https://www.bluetooth.org/foundry/assignnumb/document/service_discovery</span>
<a name="l00010"></a>00010
<a name="l00011"></a>00011 <span class="comment">// service name and description for our service</span>
<a name="l00012"></a>00012 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KBTServiceName, <span class="stringliteral">"BTpmp"</span>);
<a name="l00013"></a>00013 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KBTServiceDesc, <span class="stringliteral">"BTpmp"</span>);
<a name="l00014"></a>00014
<a name="l00015"></a><a class="code" href="class_c_service_advertiser.html#a806cb9d464c1416a6441a9aba38b203c">00015</a> <a class="code" href="class_c_service_advertiser.html">CServiceAdvertiser</a>* <a class="code" href="class_c_service_advertiser.html#a806cb9d464c1416a6441a9aba38b203c">CServiceAdvertiser::NewL</a>()
<a name="l00016"></a>00016 {
<a name="l00017"></a>00017 <a class="code" href="class_c_service_advertiser.html">CServiceAdvertiser</a>* <span class="keyword">self</span> = <a class="code" href="class_c_service_advertiser.html#ae9caf6f124248cc0e8f93e7263894ba7">CServiceAdvertiser::NewLC</a>();
<a name="l00018"></a>00018 CleanupStack::Pop(<span class="keyword">self</span>);
<a name="l00019"></a>00019 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00020"></a>00020 }
<a name="l00021"></a>00021
<a name="l00022"></a>00022
<a name="l00023"></a><a class="code" href="class_c_service_advertiser.html#ae9caf6f124248cc0e8f93e7263894ba7">00023</a> <a class="code" href="class_c_service_advertiser.html">CServiceAdvertiser</a>* <a class="code" href="class_c_service_advertiser.html#ae9caf6f124248cc0e8f93e7263894ba7">CServiceAdvertiser::NewLC</a>()
<a name="l00024"></a>00024 {
<a name="l00025"></a>00025 <a class="code" href="class_c_service_advertiser.html">CServiceAdvertiser</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_service_advertiser.html">CServiceAdvertiser</a>();
<a name="l00026"></a>00026 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00027"></a>00027 <span class="keyword">self</span>->ConstructL();
<a name="l00028"></a>00028 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00029"></a>00029 }
<a name="l00030"></a>00030
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="keywordtype">void</span> CServiceAdvertiser::ConstructL()
<a name="l00033"></a>00033 {
<a name="l00034"></a>00034 }
<a name="l00035"></a>00035
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00038"></a>00038 <span class="comment">// CServiceAdvertiser::CServiceAdvertiser()</span>
<a name="l00039"></a>00039 <span class="comment">//</span>
<a name="l00040"></a>00040 <span class="comment">// constructor</span>
<a name="l00041"></a>00041 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00042"></a>00042 CServiceAdvertiser::CServiceAdvertiser()
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044 }
<a name="l00045"></a>00045
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00048"></a>00048 <span class="comment">// CServiceAdvertiser::~CServiceAdvertiser()</span>
<a name="l00049"></a>00049 <span class="comment">//</span>
<a name="l00050"></a>00050 <span class="comment">// destructor</span>
<a name="l00051"></a>00051 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00052"></a><a class="code" href="class_c_service_advertiser.html#a2f8c410fff06231459357dadf91c300b">00052</a> <a class="code" href="class_c_service_advertiser.html#a2f8c410fff06231459357dadf91c300b">CServiceAdvertiser::~CServiceAdvertiser</a>()
<a name="l00053"></a>00053 {
<a name="l00054"></a>00054 TRAPD(err, <a class="code" href="class_c_service_advertiser.html#a7a05532cd0a9fb44ab40f1ffa1ff1c39">StopAdvertiserL</a>());
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056
<a name="l00057"></a>00057
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00060"></a>00060 <span class="comment">// CServiceAdvertiser::StartAdvertiserL(TInt aChannel)</span>
<a name="l00061"></a>00061 <span class="comment">//</span>
<a name="l00062"></a>00062 <span class="comment">// start service advertiser on given channel. an entry to service discovery</span>
<a name="l00063"></a>00063 <span class="comment">// database will be entered describing our advertised service.</span>
<a name="l00064"></a>00064 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00065"></a><a class="code" href="class_c_service_advertiser.html#a472557c615ce3eb0a59f64bb1f6a0de1">00065</a> <span class="keywordtype">void</span> <a class="code" href="class_c_service_advertiser.html#a472557c615ce3eb0a59f64bb1f6a0de1">CServiceAdvertiser::StartAdvertiserL</a>(TInt aChannel)
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 <span class="comment">// open sdp session</span>
<a name="l00068"></a>00068 User::LeaveIfError(iSdp.Connect());
<a name="l00069"></a>00069 <span class="comment">// open sdp database session</span>
<a name="l00070"></a>00070 User::LeaveIfError(iSdpDB.Open(iSdp));
<a name="l00071"></a>00071 <span class="comment">// create a record of the correct service class</span>
<a name="l00072"></a>00072 TUUID serviceUUID(KBT_serviceID);
<a name="l00073"></a>00073 iSdpDB.CreateServiceRecordL(serviceUUID, iRecord);
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="comment">// add a protocol to the record</span>
<a name="l00076"></a>00076 CSdpAttrValueDES* protocolDescriptorList = CSdpAttrValueDES::NewDESL(NULL);
<a name="l00077"></a>00077 CleanupStack::PushL(protocolDescriptorList);
<a name="l00078"></a>00078
<a name="l00079"></a>00079 TBuf8<1> channel;
<a name="l00080"></a>00080 channel.Append((TChar)aChannel);
<a name="l00081"></a>00081 <span class="comment">// create protocol list for our service</span>
<a name="l00082"></a>00082 protocolDescriptorList
<a name="l00083"></a>00083 ->StartListL() <span class="comment">// list of protocols required for this method</span>
<a name="l00084"></a>00084 ->BuildDESL()
<a name="l00085"></a>00085 ->StartListL()
<a name="l00086"></a>00086 ->BuildUUIDL(KL2CAP)
<a name="l00087"></a>00087 ->EndListL()
<a name="l00088"></a>00088
<a name="l00089"></a>00089 ->BuildDESL()
<a name="l00090"></a>00090 ->StartListL()
<a name="l00091"></a>00091 ->BuildUUIDL(KRFCOMM)
<a name="l00092"></a>00092 ->BuildUintL(channel)
<a name="l00093"></a>00093 ->EndListL()
<a name="l00094"></a>00094 ->EndListL();
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="comment">// set protocol list to the record</span>
<a name="l00097"></a>00097 iSdpDB.UpdateAttributeL(iRecord, KSdpAttrIdProtocolDescriptorList,
<a name="l00098"></a>00098 *protocolDescriptorList);
<a name="l00099"></a>00099 CleanupStack::PopAndDestroy(protocolDescriptorList);
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="comment">// add a name to the record</span>
<a name="l00102"></a>00102 iSdpDB.UpdateAttributeL(iRecord,
<a name="l00103"></a>00103 KSdpAttrIdBasePrimaryLanguage +
<a name="l00104"></a>00104 KSdpAttrIdOffsetServiceName,
<a name="l00105"></a>00105 KBTServiceName);
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="comment">// add a description to the record</span>
<a name="l00108"></a>00108 iSdpDB.UpdateAttributeL(iRecord,
<a name="l00109"></a>00109 KSdpAttrIdBasePrimaryLanguage +
<a name="l00110"></a>00110 KSdpAttrIdOffsetServiceDescription,
<a name="l00111"></a>00111 KBTServiceDesc);
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="comment">// set service available</span>
<a name="l00114"></a>00114 <a class="code" href="class_c_service_advertiser.html#ab1c8f92e638fed6da1718268407b05eb">UpdateAvailabilityL</a>(ETrue);
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116
<a name="l00117"></a>00117
<a name="l00118"></a>00118 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00119"></a>00119 <span class="comment">// CServiceAdvertiser::StopAdvertiserL()</span>
<a name="l00120"></a>00120 <span class="comment">//</span>
<a name="l00121"></a>00121 <span class="comment">// stop service advertiser. delete service record from service discovery</span>
<a name="l00122"></a>00122 <span class="comment">// database to stop advertising.</span>
<a name="l00123"></a>00123 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00124"></a><a class="code" href="class_c_service_advertiser.html#a7a05532cd0a9fb44ab40f1ffa1ff1c39">00124</a> <span class="keywordtype">void</span> <a class="code" href="class_c_service_advertiser.html#a7a05532cd0a9fb44ab40f1ffa1ff1c39">CServiceAdvertiser::StopAdvertiserL</a>()
<a name="l00125"></a>00125 {
<a name="l00126"></a>00126 <span class="keywordflow">if</span> ( iRecord!=0 )
<a name="l00127"></a>00127 {
<a name="l00128"></a>00128 <span class="comment">// delete out record from service discovery database</span>
<a name="l00129"></a>00129 iSdpDB.DeleteRecordL(iRecord);
<a name="l00130"></a>00130 <span class="comment">// close sdp and sdp db sessions</span>
<a name="l00131"></a>00131 iSdpDB.Close();
<a name="l00132"></a>00132 iSdp.Close();
<a name="l00133"></a>00133 iRecord=0;
<a name="l00134"></a>00134 }
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136
<a name="l00137"></a>00137
<a name="l00138"></a>00138 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00139"></a>00139 <span class="comment">// CServiceAdvertiser::UpdateAvailability(TBool aAvailable)</span>
<a name="l00140"></a>00140 <span class="comment">//</span>
<a name="l00141"></a>00141 <span class="comment">// set availability of our advertised service. the service record on the</span>
<a name="l00142"></a>00142 <span class="comment">// service discovery database will be updated accordingly.</span>
<a name="l00143"></a>00143 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00144"></a><a class="code" href="class_c_service_advertiser.html#ab1c8f92e638fed6da1718268407b05eb">00144</a> <span class="keywordtype">void</span> <a class="code" href="class_c_service_advertiser.html#ab1c8f92e638fed6da1718268407b05eb">CServiceAdvertiser::UpdateAvailabilityL</a>(TBool aAvailable)
<a name="l00145"></a>00145 {
<a name="l00146"></a>00146 TInt state = aAvailable ? 0xFF : 0x00;
<a name="l00147"></a>00147 <span class="comment">// set availability</span>
<a name="l00148"></a>00148 iSdpDB.UpdateAttributeL(iRecord, KSdpAttrIdServiceAvailability, state);
<a name="l00149"></a>00149 <span class="comment">// mark record changed</span>
<a name="l00150"></a>00150 iSdpDB.UpdateAttributeL(iRecord, KSdpAttrIdServiceRecordState,
<a name="l00151"></a>00151 ++iRecordState);
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153
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