|
1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
2 // All rights reserved. |
|
3 // This component and the accompanying materials are made available |
|
4 // under the terms of "Eclipse Public License v1.0" |
|
5 // which accompanies this distribution, and is available |
|
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
7 // |
|
8 // Initial Contributors: |
|
9 // Nokia Corporation - initial contribution. |
|
10 // |
|
11 // Contributors: |
|
12 // |
|
13 // Description: |
|
14 // |
|
15 |
|
16 |
|
17 |
|
18 // INCLUDE FILES |
|
19 #include <e32base.h> |
|
20 #include "EPos_CPositionerRegistry.h" |
|
21 #include "EPos_MPosStatusObserver.h" |
|
22 #include "EPos_CPosPsyExtension.h" |
|
23 |
|
24 // ================= MEMBER FUNCTIONS ======================= |
|
25 |
|
26 // C++ default constructor |
|
27 CPositionerRegistry::CPositionerRegistry( |
|
28 MPosStatusObserver* aStatusObserver) |
|
29 : iStatusObserver(aStatusObserver) |
|
30 { |
|
31 } |
|
32 |
|
33 // Destructor |
|
34 CPositionerRegistry::~CPositionerRegistry() |
|
35 { |
|
36 iPsyExtensions.ResetAndDestroy(); |
|
37 } |
|
38 |
|
39 // Static Singleton constructor. |
|
40 CPositionerRegistry* CPositionerRegistry::InstanceL( |
|
41 MPosStatusObserver* aStatusObserver) |
|
42 { |
|
43 CPositionerRegistry* self; |
|
44 TAny* tlsptr = Dll::Tls(); |
|
45 |
|
46 if (tlsptr) |
|
47 { |
|
48 // An instance already exists. |
|
49 self = reinterpret_cast<CPositionerRegistry*> (Dll::Tls()); |
|
50 } |
|
51 else |
|
52 { |
|
53 // Instance does not exist. Create one. |
|
54 self = new (ELeave) CPositionerRegistry(aStatusObserver); |
|
55 Dll::SetTls(reinterpret_cast<TAny*> (self)); |
|
56 } |
|
57 |
|
58 self->iRefCount++; |
|
59 return self; |
|
60 } |
|
61 |
|
62 // Singleton destructor |
|
63 void CPositionerRegistry::Release() |
|
64 { |
|
65 if (--iRefCount == 0) |
|
66 { |
|
67 Dll::SetTls(NULL); |
|
68 delete this; |
|
69 } |
|
70 } |
|
71 |
|
72 // --------------------------------------------------------- |
|
73 // CPositionerRegistry::RegisterPositionerL |
|
74 // |
|
75 // (other items were commented in a header). |
|
76 // --------------------------------------------------------- |
|
77 // |
|
78 CPosPsyExtension* CPositionerRegistry::RegisterPositionerL(TUid aImplementationUid) |
|
79 { |
|
80 TInt pos = Find(aImplementationUid); |
|
81 CPosPsyExtension* psyExtension = NULL; |
|
82 if (pos == KErrNotFound) |
|
83 { |
|
84 psyExtension = new (ELeave) CPosPsyExtension( |
|
85 aImplementationUid, iStatusObserver); |
|
86 CleanupStack::PushL(psyExtension); |
|
87 User::LeaveIfError(iPsyExtensions.Append(psyExtension)); |
|
88 CleanupStack::Pop(psyExtension); |
|
89 } |
|
90 else |
|
91 { |
|
92 psyExtension = iPsyExtensions[pos]; |
|
93 } |
|
94 psyExtension->RegisterPositioner(); |
|
95 return psyExtension; |
|
96 } |
|
97 |
|
98 // --------------------------------------------------------- |
|
99 // CPositionerRegistry::DeregisterPositioner |
|
100 // |
|
101 // (other items were commented in a header). |
|
102 // --------------------------------------------------------- |
|
103 // |
|
104 void CPositionerRegistry::DeregisterPositioner(TUid aImplementationUid) |
|
105 { |
|
106 TInt pos = Find(aImplementationUid); |
|
107 if (pos != KErrNotFound) |
|
108 { |
|
109 CPosPsyExtension* psyExtension = iPsyExtensions[pos]; |
|
110 if (psyExtension->UnregisterPositioner() == 0) |
|
111 { |
|
112 // There are no more positioners using this PSY |
|
113 delete psyExtension; |
|
114 iPsyExtensions.Remove(pos); |
|
115 } |
|
116 } |
|
117 } |
|
118 |
|
119 // --------------------------------------------------------- |
|
120 // CPositionerRegistry::Find |
|
121 // |
|
122 // (other items were commented in a header). |
|
123 // --------------------------------------------------------- |
|
124 // |
|
125 TInt CPositionerRegistry::Find(TUid aImplementationUid) |
|
126 { |
|
127 TInt count = iPsyExtensions.Count(); |
|
128 for (TInt i = 0; i < count; i++) |
|
129 { |
|
130 if (iPsyExtensions[i]->iImplementationUid == aImplementationUid) |
|
131 { |
|
132 return i; |
|
133 } |
|
134 } |
|
135 return KErrNotFound; |
|
136 } |
|
137 |
|
138 // End of File |