|
1 /* |
|
2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: Implementation |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 |
|
20 |
|
21 #include "CDelayedProcess.h" |
|
22 #include <MceMediaStream.h> |
|
23 #include <MceMediaSource.h> |
|
24 #include <e32debug.h> |
|
25 |
|
26 /** |
|
27 * Standard Symbian OS static function for creating an instance of the object. |
|
28 * If creation fails, a leave will be sent. |
|
29 * @param aDtmfSource pointer to the CMceMediaSource containing the dtmf source. |
|
30 */ |
|
31 CDelayedProcess* CDelayedProcess::NewL(CMceMediaSource* aDtmfSource) |
|
32 { |
|
33 CDelayedProcess* self = new (ELeave) CDelayedProcess(aDtmfSource); |
|
34 CleanupStack::PushL(self); |
|
35 self->ConstructL(); |
|
36 CleanupStack::Pop(self); |
|
37 return self; |
|
38 } |
|
39 |
|
40 CDelayedProcess::CDelayedProcess(CMceMediaSource* aDtmfSource) |
|
41 : CActive(CActive::EPriorityStandard), |
|
42 iDtmfSrc(aDtmfSource) |
|
43 { |
|
44 // Call base constructor of CActive with the standard priority |
|
45 // Add this active object instance to the Active Scheduler: |
|
46 CActiveScheduler::Add(this); |
|
47 } |
|
48 |
|
49 void CDelayedProcess::ConstructL() |
|
50 { |
|
51 // Create a thread-relative timer. |
|
52 User::LeaveIfError(iTimer.CreateLocal()); |
|
53 } |
|
54 |
|
55 CDelayedProcess::~CDelayedProcess() |
|
56 { |
|
57 // Call cancel-function of CActive base class, which will call DoCancel() |
|
58 Cancel(); |
|
59 // Close the handle to the timer. |
|
60 iTimer.Close(); |
|
61 } |
|
62 |
|
63 /** |
|
64 * Request from the application to start an asynchronous process. |
|
65 * @param aDelay delay until the asynch. timer event occurs, in microseconds. |
|
66 */ |
|
67 void CDelayedProcess::StartProcess(TTimeIntervalMicroSeconds32 aDelay) |
|
68 { |
|
69 // Make sure that the active object is currently inactive |
|
70 _LIT(KDelayedProcessPanic, "CDelayedProcess"); |
|
71 __ASSERT_ALWAYS(!IsActive(), User::Panic(KDelayedProcessPanic, KErrInUse)); |
|
72 |
|
73 |
|
74 iTimer.After(iStatus, aDelay); |
|
75 |
|
76 // Indicates that the active object has issued a request and that it is now outstanding. |
|
77 SetActive(); |
|
78 } |
|
79 |
|
80 /** |
|
81 * Handles an active object’s request completion event. |
|
82 */ |
|
83 void CDelayedProcess::RunL() |
|
84 { |
|
85 |
|
86 _LIT(KTimerExpired, "Timer Expired\n"); |
|
87 RDebug::Print(KTimerExpired); |
|
88 |
|
89 // Stop sending the tone |
|
90 if( iDtmfSrc->DtmfActive() ) |
|
91 { |
|
92 iDtmfSrc->StopDtmfToneL(); |
|
93 |
|
94 } |
|
95 |
|
96 TRequestStatus* status = &iStatus; |
|
97 // Generates event on itself |
|
98 // User::RequestComplete(status, KErrNone); |
|
99 |
|
100 } |
|
101 |
|
102 /** |
|
103 * Implements cancellation of an outstanding request. |
|
104 */ |
|
105 void CDelayedProcess::DoCancel() |
|
106 { |
|
107 iTimer.Cancel(); |
|
108 } |