examples/Base/IPC/Async/SingleRequest/SingleRequest.cpp

00001 /*
00002 Copyright (c) 2000-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
00003 
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00005 modification, are permitted provided that the following conditions are met:
00006 
00007 * Redistributions of source code must retain the above copyright notice, this
00008   list of conditions and the following disclaimer.
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00010   this list of conditions and the following disclaimer in the documentation
00011   and/or other materials provided with the distribution.
00012 * Neither the name of Nokia Corporation nor the names of its contributors
00013   may be used to endorse or promote products derived from this software
00014   without specific prior written permission.
00015 
00016 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00017 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00018 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00019 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
00020 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00021 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00022 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00023 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00024 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00025 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00026 
00027 Description: 
00028 Shows asynchronous programming (without active objects).
00029 Example shows how a single request can be issued, followed
00030 by User::WaitForRequest() 
00031 */
00032 
00033 
00034 
00035 #include "CommonFramework.h"
00036 
00037 
00038 
00039 // Do the example
00040 LOCAL_C void doExampleL()
00041     {
00042           // create and initialize heartbeat timer
00043         RTimer heartbeat;               // heartbeat timer
00044 
00045         TRequestStatus heartbeatStatus; // request status associated with it
00046         heartbeat.CreateLocal();        // always created for this thread
00047 
00048           // go round timing loop
00049         for (TInt i=0; i<10; i++)
00050                 {
00051                   // issue and wait for single request
00052                 heartbeat.After(heartbeatStatus,1000000); // wait 1 second
00053                 User::WaitForRequest(heartbeatStatus);    // wait for request
00054                                                           // to complete
00055                   // say we're here
00056                 _LIT(KFormatString1,"Tick %d\n");
00057                 console->Printf(KFormatString1, i);
00058                 }
00059 
00060           // close timer
00061         heartbeat.Close(); // close timer
00062         }

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