Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_single_request_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/Base/IPC/Async/SingleRequest/SingleRequest.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2000-2009 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">// Shows asynchronous programming (without active objects).</span>
<a name="l00015"></a>00015 <span class="comment">// Example shows how a single request can be issued, followed</span>
<a name="l00016"></a>00016 <span class="comment">// by User::WaitForRequest()</span>
<a name="l00017"></a>00017 <span class="comment">//</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="preprocessor">#include "CommonFramework.h"</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="comment">// Do the example</span>
<a name="l00025"></a>00025 LOCAL_C <span class="keywordtype">void</span> doExampleL()
<a name="l00026"></a>00026 {
<a name="l00027"></a>00027 <span class="comment">// create and initialize heartbeat timer</span>
<a name="l00028"></a>00028 RTimer heartbeat; <span class="comment">// heartbeat timer</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 TRequestStatus heartbeatStatus; <span class="comment">// request status associated with it</span>
<a name="l00031"></a>00031 heartbeat.CreateLocal(); <span class="comment">// always created for this thread</span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="comment">// go round timing loop</span>
<a name="l00034"></a>00034 <span class="keywordflow">for</span> (TInt i=0; i<10; i++)
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036 <span class="comment">// issue and wait for single request</span>
<a name="l00037"></a>00037 heartbeat.After(heartbeatStatus,1000000); <span class="comment">// wait 1 second</span>
<a name="l00038"></a>00038 User::WaitForRequest(heartbeatStatus); <span class="comment">// wait for request</span>
<a name="l00039"></a>00039 <span class="comment">// to complete</span>
<a name="l00040"></a>00040 <span class="comment">// say we're here</span>
<a name="l00041"></a>00041 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFormatString1,<span class="stringliteral">"Tick %d\n"</span>);
<a name="l00042"></a>00042 console->Printf(KFormatString1, i);
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="comment">// close timer</span>
<a name="l00046"></a>00046 heartbeat.Close(); <span class="comment">// close timer</span>
<a name="l00047"></a>00047 }
</pre></div></div>
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