|
1 // Copyright (c) 2010 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 // Hexadecimal trees - inline functions |
|
15 // |
|
16 |
|
17 #ifndef HEXTREE_INL |
|
18 #define HEXTREE_INL |
|
19 |
|
20 /** |
|
21 Constructor. It constructs an associative array with no key-value pairs. |
|
22 |
|
23 @param aHeap A pointer to the heap to be used by the associative array |
|
24 implementation to allocate memory for internal data structures. This |
|
25 heap can be shared between several processes. |
|
26 */ |
|
27 template<class T> |
|
28 inline RHexTree<T>::RHexTree(RHeap* aHeap) |
|
29 : RHexTreeBase(aHeap) |
|
30 { |
|
31 } |
|
32 |
|
33 /** |
|
34 Adds a key-value pair to this associative array. |
|
35 |
|
36 @param aKey The 32-bit key to add to this associative array. |
|
37 @param aValue A pointer to the value to associate with aKey. It must have been |
|
38 allocated on the same heap as the one used by the associative array |
|
39 implementation to allocate memory for internal data structures. Ownership |
|
40 is transferred to this associative array. |
|
41 @return KErrNone if the key-value pair was added successfully. KErrNoMemory if |
|
42 there was not enough memory in the heap for internal data structures. |
|
43 KErrAlreadyExists if an attempt was made to add a duplicate key. |
|
44 */ |
|
45 template<class T> |
|
46 inline TInt RHexTree<T>::SetAt(TUint aKey, T* aValue) |
|
47 { |
|
48 return RHexTreeBase::SetAt(aKey, aValue); |
|
49 } |
|
50 |
|
51 /** |
|
52 Looks up a given key in this associative array and returns a pointer to the |
|
53 corresponding value. |
|
54 |
|
55 @param aKey The 32-bit key to look up. |
|
56 @return A pointer to the corresponding value in this associative array, if the |
|
57 given key was found. The value may not be modified via this pointer. |
|
58 NULL if the given key was not found. |
|
59 */ |
|
60 template<class T> |
|
61 inline const T* RHexTree<T>::At(TUint aKey) const |
|
62 { |
|
63 return static_cast<T*>(RHexTreeBase::At(aKey)); |
|
64 } |
|
65 |
|
66 /** |
|
67 Looks up a given key in this associative array and returns a pointer to the |
|
68 corresponding value. Note that if values are modified after being added to an |
|
69 associative array, then the user is responsible for synchronisation when |
|
70 concurrent access is needed. |
|
71 |
|
72 @param aKey The 32-bit key to look up. |
|
73 @return A pointer to the corresponding value in this associative array, if the |
|
74 given key was found. The value may be modified via this pointer. |
|
75 NULL if the given key was not found. |
|
76 */ |
|
77 template<class T> |
|
78 inline T* RHexTree<T>::At(TUint aKey) |
|
79 { |
|
80 return static_cast<T*>(RHexTreeBase::At(aKey)); |
|
81 } |
|
82 |
|
83 #endif // HEXTREE_INL |