Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/bluetoothrefreshtimer_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/ForumNokia/ThreadAndActiveObjectsEx/src/bluetoothrefreshtimer.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 © 2008 Nokia Corporation.</span>
<a name="l00003"></a>00003 <span class="comment"> */</span>
<a name="l00004"></a>00004
<a name="l00005"></a>00005
<a name="l00006"></a>00006 <span class="comment">// INCLUDES</span>
<a name="l00007"></a>00007 <span class="preprocessor">#include <e32base.h></span>
<a name="l00008"></a>00008 <span class="preprocessor">#include "aknnotewrappers.h"</span>
<a name="l00009"></a>00009 <span class="preprocessor">#include "..\inc\BluetoothRefreshTimer.h"</span>
<a name="l00010"></a>00010 <span class="preprocessor">#include "btdiscoverer.h"</span>
<a name="l00011"></a>00011 <span class="preprocessor">#include "DeviceListContainer.h"</span>
<a name="l00012"></a>00012
<a name="l00013"></a>00013 <span class="comment">// a second</span>
<a name="l00014"></a>00014 <span class="keyword">const</span> TInt KThreadSecond = 1000 * 1000;
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>( refreshDevices, <span class="stringliteral">"refreshing devices..."</span> );
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00019"></a>00019 <span class="comment">// CBluetoothRefreshTimer::CBluetoothRefreshTimer()</span>
<a name="l00020"></a>00020 <span class="comment">//</span>
<a name="l00021"></a>00021 <span class="comment">// Constructor.</span>
<a name="l00022"></a>00022 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00023"></a>00023 CBluetoothRefreshTimer::CBluetoothRefreshTimer(
<a name="l00024"></a>00024 <a class="code" href="class_c_shared_intermediator.html">CSharedIntermediator</a>* aSMediator,
<a name="l00025"></a>00025 CActiveSchedulerWait* aWait)
<a name="l00026"></a>00026 : CTimer(CActive::EPriorityStandard),
<a name="l00027"></a>00027 iWait(aWait), iSMediator(aSMediator),
<a name="l00028"></a>00028 iBTDiscoverer(NULL), iRefreshTime(0), iTime(0)
<a name="l00029"></a>00029 {
<a name="l00030"></a>00030 iSMediator->SetBTRefreshTimerPtr(<span class="keyword">this</span>);
<a name="l00031"></a>00031 }
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00034"></a>00034 <span class="comment">// CBluetoothRefreshTimer::~CBluetoothRefreshTimer()</span>
<a name="l00035"></a>00035 <span class="comment">//</span>
<a name="l00036"></a>00036 <span class="comment">// Destructor.</span>
<a name="l00037"></a>00037 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00038"></a><a class="code" href="class_c_bluetooth_refresh_timer.html#afb7e5ebedb0475a393d24030ce4b91e4">00038</a> <a class="code" href="class_c_bluetooth_refresh_timer.html#afb7e5ebedb0475a393d24030ce4b91e4">CBluetoothRefreshTimer::~CBluetoothRefreshTimer</a>()
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 Cancel();
<a name="l00041"></a>00041 <span class="keyword">delete</span> iBTDiscoverer;
<a name="l00042"></a>00042 }
<a name="l00043"></a>00043
<a name="l00044"></a>00044
<a name="l00045"></a><a class="code" href="class_c_bluetooth_refresh_timer.html#a122b128888ef9a86b0a4710c1459b3e2">00045</a> <a class="code" href="class_c_bluetooth_refresh_timer.html">CBluetoothRefreshTimer</a>* <a class="code" href="class_c_bluetooth_refresh_timer.html#a122b128888ef9a86b0a4710c1459b3e2">CBluetoothRefreshTimer::NewL</a>(
<a name="l00046"></a>00046 <a class="code" href="class_c_shared_intermediator.html">CSharedIntermediator</a>* aSMediator, CActiveSchedulerWait* aWait)
<a name="l00047"></a>00047 {
<a name="l00048"></a>00048 <a class="code" href="class_c_bluetooth_refresh_timer.html">CBluetoothRefreshTimer</a>* <span class="keyword">self</span> = <a class="code" href="class_c_bluetooth_refresh_timer.html#a10697495f27262ca4119892932cf5be3">CBluetoothRefreshTimer::NewLC</a>(
<a name="l00049"></a>00049 aSMediator, aWait );
<a name="l00050"></a>00050 CleanupStack::Pop(<span class="keyword">self</span>);
<a name="l00051"></a>00051 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00052"></a>00052 }
<a name="l00053"></a>00053
<a name="l00054"></a><a class="code" href="class_c_bluetooth_refresh_timer.html#a10697495f27262ca4119892932cf5be3">00054</a> <a class="code" href="class_c_bluetooth_refresh_timer.html">CBluetoothRefreshTimer</a>* <a class="code" href="class_c_bluetooth_refresh_timer.html#a10697495f27262ca4119892932cf5be3">CBluetoothRefreshTimer::NewLC</a>(
<a name="l00055"></a>00055 <a class="code" href="class_c_shared_intermediator.html">CSharedIntermediator</a>* aSMediator, CActiveSchedulerWait* aWait)
<a name="l00056"></a>00056 {
<a name="l00057"></a>00057 <a class="code" href="class_c_bluetooth_refresh_timer.html">CBluetoothRefreshTimer</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_bluetooth_refresh_timer.html">CBluetoothRefreshTimer</a>(
<a name="l00058"></a>00058 aSMediator, aWait );
<a name="l00059"></a>00059 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00060"></a>00060 <span class="keyword">self</span>->ConstructL();
<a name="l00061"></a>00061 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00062"></a>00062 }
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="comment">// Standard Symbian OS 2nd phase constructor</span>
<a name="l00065"></a>00065 <span class="keywordtype">void</span> CBluetoothRefreshTimer::ConstructL()
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 CTimer::ConstructL();
<a name="l00068"></a>00068
<a name="l00069"></a>00069 iBTDiscoverer = <a class="code" href="class_c_bluetooth_refresh_timer.html#a122b128888ef9a86b0a4710c1459b3e2">CBTDiscoverer::NewL</a>(iSMediator);
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00073"></a>00073 <span class="comment">// CBluetoothRefreshTimer::StartL()</span>
<a name="l00074"></a>00074 <span class="comment">//</span>
<a name="l00075"></a>00075 <span class="comment">// Start discovering.</span>
<a name="l00076"></a>00076 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00077"></a><a class="code" href="class_c_bluetooth_refresh_timer.html#a8f2c8cdde49f04754b4ed693228da3e0">00077</a> <span class="keywordtype">void</span> <a class="code" href="class_c_bluetooth_refresh_timer.html#a8f2c8cdde49f04754b4ed693228da3e0">CBluetoothRefreshTimer::StartL</a>()
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 iRefreshTime = KThreadSecond*iSMediator-><a class="code" href="class_c_shared_intermediator.html#a028d5958e4503d319b594412bf118a3d">RefreshTimerInitlVal</a>();
<a name="l00080"></a>00080
<a name="l00081"></a>00081 iBTDiscoverer-><a class="code" href="class_c_b_t_discoverer.html#a883d57ae3cd27e92a2c90a5d304f38e6">StartDiscoveringDevicesL</a>();
<a name="l00082"></a>00082 After( KThreadSecond );
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00086"></a>00086 <span class="comment">// CBluetoothRefreshTimer::StopWaitLoop()</span>
<a name="l00087"></a>00087 <span class="comment">//</span>
<a name="l00088"></a>00088 <span class="comment">// Cancel active scheduler wait loop and cancel bluetooth discoverer.</span>
<a name="l00089"></a>00089 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00090"></a><a class="code" href="class_c_bluetooth_refresh_timer.html#a270c66a754cbb2acc85c2b87709192b0">00090</a> <span class="keywordtype">void</span> <a class="code" href="class_c_bluetooth_refresh_timer.html#a270c66a754cbb2acc85c2b87709192b0">CBluetoothRefreshTimer::StopWaitLoop</a>()
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092 iBTDiscoverer->DoCancel();
<a name="l00093"></a>00093 Cancel();
<a name="l00094"></a>00094 iWait->AsyncStop();
<a name="l00095"></a>00095 }
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00098"></a>00098 <span class="comment">// CBluetoothRefreshTimer::RunL()</span>
<a name="l00099"></a>00099 <span class="comment">//</span>
<a name="l00100"></a>00100 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00101"></a><a class="code" href="class_c_bluetooth_refresh_timer.html#a35ac4274326e25348a4c1536c6b13943">00101</a> <span class="keywordtype">void</span> <a class="code" href="class_c_bluetooth_refresh_timer.html#a35ac4274326e25348a4c1536c6b13943">CBluetoothRefreshTimer::RunL</a>()
<a name="l00102"></a>00102 {
<a name="l00103"></a>00103 <span class="comment">// Is it time to refresh yet</span>
<a name="l00104"></a>00104 <span class="keywordflow">if</span> ( iTime >= iRefreshTime )
<a name="l00105"></a>00105 {
<a name="l00106"></a>00106 <a class="code" href="class_c_device_list_container.html">CDeviceListContainer</a>* container = iSMediator-><a class="code" href="class_c_shared_intermediator.html#a1691ecc4482d77cd453f621163947d3c">DeviceListContainer</a>();
<a name="l00107"></a>00107
<a name="l00108"></a>00108 container-><a class="code" href="class_c_device_list_container.html#a24bf4567a03fd40885114cbdd79fbb3c">ClearListBox</a>();
<a name="l00109"></a>00109 container-><a class="code" href="class_c_device_list_container.html#a3cb96c5eefbd529e47a20bcf0568415d">AddItemL</a>( refreshDevices );
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="comment">// Clear also shared intermediator</span>
<a name="l00112"></a>00112 iSMediator-><a class="code" href="class_c_shared_intermediator.html#a22888d5681085c1321e3e3890bc0c780">ResetArray</a>();
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <span class="comment">// Find bluetooth devices again</span>
<a name="l00115"></a>00115 iBTDiscoverer-><a class="code" href="class_c_b_t_discoverer.html#a025caeff179e22d835296e10b3387e6d">RefreshDevices</a>();
<a name="l00116"></a>00116
<a name="l00117"></a>00117 iTime = 0;
<a name="l00118"></a>00118 }
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="comment">// Stop seaching for bt devices</span>
<a name="l00121"></a>00121 <span class="keywordflow">if</span> (iSMediator-><a class="code" href="class_c_shared_intermediator.html#a8d00c726b3de0ad952e32d0ed9a89364">StopSearching</a>())
<a name="l00122"></a>00122 {
<a name="l00123"></a>00123 <span class="comment">// Stop Active Scheduler wait loop</span>
<a name="l00124"></a>00124 <a class="code" href="class_c_bluetooth_refresh_timer.html#a270c66a754cbb2acc85c2b87709192b0">StopWaitLoop</a>();
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <span class="comment">// Wait for a while and run the same function again </span>
<a name="l00128"></a>00128 iTime+=KThreadSecond;
<a name="l00129"></a>00129 After( KThreadSecond );
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00133"></a>00133 <span class="comment">// CBluetoothRefreshTimer::DoCancel()</span>
<a name="l00134"></a>00134 <span class="comment">//</span>
<a name="l00135"></a>00135 <span class="comment">// Cancel and stop the timer. </span>
<a name="l00136"></a>00136 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00137"></a><a class="code" href="class_c_bluetooth_refresh_timer.html#a0198ef7e6c6f86cc29f32cbd0105e5d9">00137</a> <span class="keywordtype">void</span> <a class="code" href="class_c_bluetooth_refresh_timer.html#a0198ef7e6c6f86cc29f32cbd0105e5d9">CBluetoothRefreshTimer::DoCancel</a>()
<a name="l00138"></a>00138 {
<a name="l00139"></a>00139 <a class="code" href="class_c_bluetooth_refresh_timer.html#a0198ef7e6c6f86cc29f32cbd0105e5d9">CTimer::DoCancel</a>();
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00143"></a>00143 <span class="comment">// CBluetoothRefreshTimer::SetRefreshTime(TInt aRefreshTime)</span>
<a name="l00144"></a>00144 <span class="comment">//</span>
<a name="l00145"></a>00145 <span class="comment">// Set a new refresh time. Convert time to microseconds.</span>
<a name="l00146"></a>00146 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00147"></a><a class="code" href="class_c_bluetooth_refresh_timer.html#a8442cf6f32eb9cd6d10a0ca56fd8cada">00147</a> <span class="keywordtype">void</span> <a class="code" href="class_c_bluetooth_refresh_timer.html#a8442cf6f32eb9cd6d10a0ca56fd8cada">CBluetoothRefreshTimer::SetRefreshTime</a>(TInt aRefreshTime)
<a name="l00148"></a>00148 {
<a name="l00149"></a>00149
<a name="l00150"></a>00150 <span class="keywordflow">if</span> ( aRefreshTime < KRefreshTimeMin )
<a name="l00151"></a>00151 {
<a name="l00152"></a>00152 aRefreshTime = KRefreshTimeDefault;
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154
<a name="l00155"></a>00155 <span class="comment">// Convert to microseconds</span>
<a name="l00156"></a>00156 iRefreshTime = aRefreshTime * KThreadSecond;
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00159"></a>00159 <span class="comment">// CBluetoothRefreshTimer::RunError(TInt)</span>
<a name="l00160"></a>00160 <span class="comment">//</span>
<a name="l00161"></a>00161 <span class="comment">// Handles a leave occurring in the request completion event handler RunL().</span>
<a name="l00162"></a>00162 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00163"></a><a class="code" href="class_c_bluetooth_refresh_timer.html#a5dee58121e84aedaf3d21698add7216f">00163</a> TInt <a class="code" href="class_c_bluetooth_refresh_timer.html#a5dee58121e84aedaf3d21698add7216f">CBluetoothRefreshTimer::RunError</a>(TInt)
<a name="l00164"></a>00164 {
<a name="l00165"></a>00165 <span class="keywordflow">return</span> KErrNone;
<a name="l00166"></a>00166 }
<a name="l00167"></a>00167
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