|
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: This module contains the implementation of CIAUpdateGlobalLockHandler class |
|
15 * member functions. |
|
16 * |
|
17 */ |
|
18 |
|
19 |
|
20 //INCLUDES |
|
21 #include <e32property.h> |
|
22 #include <apgwgnam.h> |
|
23 |
|
24 #include "iaupdategloballockhandler.h" |
|
25 #include "iaupdateuids.h" |
|
26 #include "iaupdatedebug.h" |
|
27 |
|
28 //CONSTANTS |
|
29 const TUid KPSUid = { KIAUpdateUiUid }; |
|
30 const TUint32 KIAUpdateGlobalLock = 0x00000001; |
|
31 const TUid KSid = { KIAUpdateUiUid }; |
|
32 |
|
33 //MACROS |
|
34 _LIT_SECURITY_POLICY_PASS( KReadPolicy ); |
|
35 _LIT_SECURITY_POLICY_S0( KWritePolicy, (TSecureId ) KSid ); |
|
36 |
|
37 |
|
38 // ================= MEMBER FUNCTIONS ======================= |
|
39 |
|
40 // --------------------------------------------------------------------------- |
|
41 // CIAUpdateGlobalLockHandler::NewL |
|
42 // Two-phased constructor. |
|
43 // --------------------------------------------------------------------------- |
|
44 // |
|
45 CIAUpdateGlobalLockHandler* CIAUpdateGlobalLockHandler::NewL() |
|
46 { |
|
47 CIAUpdateGlobalLockHandler* self = CIAUpdateGlobalLockHandler::NewLC(); |
|
48 CleanupStack::Pop( self ); |
|
49 return self; |
|
50 } |
|
51 |
|
52 // ----------------------------------------------------------------------------- |
|
53 // CIAUpdateGlobalLockHandler::NewLC |
|
54 // Two-phased constructor. |
|
55 // ----------------------------------------------------------------------------- |
|
56 // |
|
57 CIAUpdateGlobalLockHandler* CIAUpdateGlobalLockHandler::NewLC() |
|
58 { |
|
59 CIAUpdateGlobalLockHandler* self = new( ELeave ) CIAUpdateGlobalLockHandler(); |
|
60 CleanupStack::PushL( self ); |
|
61 self->ConstructL(); |
|
62 return self; |
|
63 } |
|
64 |
|
65 |
|
66 |
|
67 // --------------------------------------------------------------------------- |
|
68 // CIAUpdateGlobalLockHandler::ConstructL |
|
69 // --------------------------------------------------------------------------- |
|
70 // |
|
71 void CIAUpdateGlobalLockHandler::ConstructL() |
|
72 { |
|
73 IAUPDATE_TRACE("[IAUPDATE] CIAUpdateGlobalLockHandler::ConstructL() begin"); |
|
74 TInt err = RProperty::Define( KPSUid, |
|
75 KIAUpdateGlobalLock, |
|
76 RProperty::EInt, |
|
77 KReadPolicy, |
|
78 KWritePolicy ); |
|
79 if ( err != KErrNone && err != KErrAlreadyExists ) |
|
80 { |
|
81 User::Leave( err ); |
|
82 } |
|
83 IAUPDATE_TRACE("[IAUPDATE] CIAUpdateGlobalLockHandler::ConstructL() end"); |
|
84 } |
|
85 |
|
86 // --------------------------------------------------------------------------- |
|
87 // CIAUpdateGlobalLockHandler::CIAUpdateGlobalLockHandler |
|
88 // constructor |
|
89 // --------------------------------------------------------------------------- |
|
90 // |
|
91 CIAUpdateGlobalLockHandler::CIAUpdateGlobalLockHandler() |
|
92 { |
|
93 iEikEnv = CEikonEnv::Static(); |
|
94 } |
|
95 |
|
96 // --------------------------------------------------------------------------- |
|
97 // CIAUpdateGlobalLockHandler::~CIAUpdateGlobalLockHandler |
|
98 // Destructor |
|
99 // --------------------------------------------------------------------------- |
|
100 // |
|
101 CIAUpdateGlobalLockHandler::~CIAUpdateGlobalLockHandler() |
|
102 { |
|
103 IAUPDATE_TRACE("[IAUPDATE] CIAUpdateGlobalLockHandler::~CIAUpdateGlobalLockHandler() begin"); |
|
104 if ( iSetAsLocked ) |
|
105 { |
|
106 TRAP_IGNORE( SetToInUseForAnotherInstancesL( EFalse ) ); |
|
107 } |
|
108 IAUPDATE_TRACE("[IAUPDATE] CIAUpdateGlobalLockHandler::~CIAUpdateGlobalLockHandler() end"); |
|
109 } |
|
110 |
|
111 |
|
112 // --------------------------------------------------------------------------- |
|
113 // CIAUpdateGlobalLockHandler::InUseByAnotherInstanceL |
|
114 // |
|
115 // --------------------------------------------------------------------------- |
|
116 // |
|
117 TBool CIAUpdateGlobalLockHandler::InUseByAnotherInstanceL() |
|
118 { |
|
119 IAUPDATE_TRACE("[IAUPDATE] CIAUpdateGlobalLockHandler::InUseByAnotherInstanceL() begin"); |
|
120 TBool inUse = EFalse; |
|
121 TInt wgId = 0; //zero value means that global lock is off |
|
122 User::LeaveIfError( RProperty::Get( KPSUid, |
|
123 KIAUpdateGlobalLock, |
|
124 wgId ) ); |
|
125 if ( wgId > 0 && wgId != iEikEnv->RootWin().Identifier() ) |
|
126 { |
|
127 // another iaupdate instance has set a lock |
|
128 // to be checked that instance is still running |
|
129 TInt prevWgId = 0; |
|
130 while ( ( prevWgId != KErrNotFound ) && ( !inUse ) ) |
|
131 { |
|
132 CApaWindowGroupName::FindByAppUid( KSid, iEikEnv->WsSession(), prevWgId ); |
|
133 if ( prevWgId == wgId ) |
|
134 { |
|
135 inUse = ETrue; |
|
136 IAUPDATE_TRACE("[IAUPDATE] CIAUpdateGlobalLockHandler::InUseByAnotherInstanceL() IAUPDATE locked by another instance"); |
|
137 } |
|
138 } |
|
139 } |
|
140 IAUPDATE_TRACE("[IAUPDATE] CIAUpdateGlobalLockHandler::InUseByAnotherInstanceL() end"); |
|
141 return inUse; |
|
142 } |
|
143 |
|
144 // --------------------------------------------------------------------------- |
|
145 // CIAUpdateGlobalLockHandler::SetToInUseForAnotherInstancesL |
|
146 // |
|
147 // --------------------------------------------------------------------------- |
|
148 // |
|
149 void CIAUpdateGlobalLockHandler::SetToInUseForAnotherInstancesL( TBool aInUse ) |
|
150 { |
|
151 IAUPDATE_TRACE("[IAUPDATE] CIAUpdateGlobalLockHandler::SetToInUseForAnotherInstancesL() begin"); |
|
152 TInt wgId = 0; //zero value means that global lock is off |
|
153 if ( aInUse ) |
|
154 { |
|
155 wgId = iEikEnv->RootWin().Identifier(); |
|
156 } |
|
157 |
|
158 User::LeaveIfError( RProperty::Set( KPSUid, |
|
159 KIAUpdateGlobalLock, |
|
160 wgId ) ); |
|
161 if ( wgId == 0 ) |
|
162 { |
|
163 IAUPDATE_TRACE("[IAUPDATE] CIAUpdateGlobalLockHandler::SetToInUseForAnotherInstancesL() Set as unlocked"); |
|
164 iSetAsLocked = EFalse; |
|
165 } |
|
166 else |
|
167 { |
|
168 IAUPDATE_TRACE("[IAUPDATE] CIAUpdateGlobalLockHandler::SetToInUseForAnotherInstancesL() Set as locked"); |
|
169 iSetAsLocked = ETrue; |
|
170 } |
|
171 IAUPDATE_TRACE("[IAUPDATE] CIAUpdateGlobalLockHandler::SetToInUseForAnotherInstancesL() end"); |
|
172 } |
|
173 |
|
174 // End of File |