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1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // @file |
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15 // @internalComponent |
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16 // |
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17 // |
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18 |
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19 #ifndef __RMEMCELL_H_ |
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20 #define __RMEMCELL_H_ |
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21 |
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22 #include <e32base.h> |
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23 |
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24 class RChunkPool; |
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25 |
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26 class RMemCell |
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27 { |
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28 public: |
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29 RMemCell ( RChunkPool* aChunkPool, TUint8* aBuffer, TInt aBlockSize ); |
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30 |
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31 |
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32 inline TUint8* Ptr (); |
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33 |
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34 void Free (); |
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35 |
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36 TAny* operator new ( TUint aSize, RMemCell* aPtr ); |
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37 void operator delete ( TAny* aPtr, RMemCell* aMemCell ); |
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38 |
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39 inline TUint Size (); |
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40 inline TUint8* Buffer(); |
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41 inline TInt Length() const; |
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42 inline void SetOffset(TInt aOffset); |
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43 inline TInt Offset() const; |
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44 inline void SetData(TInt aOffset, TInt aLength); |
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45 inline void Unlink(); |
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46 inline void Link(RMemCell* aBuf); |
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47 inline RMemCell* Next (); |
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48 RChunkPool* Pool (); |
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49 IMPORT_C RMemCell* Last(); |
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50 |
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51 inline void SetLength ( TInt aLength ); |
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52 |
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53 private: |
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54 TUint8* const iBuffer; |
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55 RChunkPool* iChunkPool; |
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56 const TInt iMaxSize; |
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57 TInt iOffset; |
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58 TInt iLength; |
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59 RMemCell* iNextCell; |
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60 }; |
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61 |
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62 TUint RMemCell::Size () |
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63 { |
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64 return iMaxSize; |
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65 } |
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66 |
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67 inline TUint8* RMemCell::Buffer() |
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68 { |
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69 return iBuffer; |
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70 } |
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71 |
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72 inline TInt RMemCell::Length() const |
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73 { |
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74 return iLength; |
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75 } |
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76 |
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77 inline void RMemCell::SetOffset(TInt aOffset) |
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78 { |
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79 iOffset = aOffset; |
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80 } |
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81 |
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82 inline TInt RMemCell::Offset() const |
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83 { |
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84 return iOffset; |
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85 } |
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86 |
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87 inline void RMemCell::Unlink() |
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88 { |
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89 iNextCell = NULL; |
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90 } |
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91 |
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92 inline void RMemCell::SetData(TInt aOffset, TInt aLength) |
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93 { |
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94 SetOffset(aOffset); |
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95 SetLength(aLength); |
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96 } |
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97 |
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98 inline void RMemCell::SetLength ( TInt aLength ) |
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99 { |
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100 iLength = aLength; |
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101 } |
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102 |
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103 inline TUint8* RMemCell::Ptr () |
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104 { |
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105 return iBuffer+iOffset; |
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106 } |
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107 |
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108 inline void RMemCell::Link(RMemCell* aBuf) |
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109 { |
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110 iNextCell = aBuf; |
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111 } |
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112 |
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113 inline RMemCell* RMemCell::Next () |
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114 { |
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115 return iNextCell; |
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116 } |
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117 |
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118 |
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119 #endif /*__RMEMCELL_H_*/ |