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1 /* |
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2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Class for unpacking a descriptor array received via IPC. |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 #include "CNcnUnpackDescrArray.h" |
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21 #include <s32mem.h> |
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22 |
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23 namespace { |
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24 |
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25 // Local constants and definitions |
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26 |
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27 const TInt KNcnPackedArrayGranularity = 4; |
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28 |
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29 // Local utility functions: |
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30 |
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31 void UnpackArrayL( const TDes8& aBuffer, CDesCArray& aArray ) |
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32 { |
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33 RDesReadStream stream( aBuffer ); |
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34 CleanupClosePushL( stream ); |
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35 |
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36 TInt status = KErrNone; |
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37 do |
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38 { |
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39 TInt length( 0 ); |
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40 TRAP( status, length = stream.ReadInt32L() ); |
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41 if ( status == KErrNone && length > 0 ) |
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42 { |
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43 HBufC* desBuf = HBufC::NewLC( length ); |
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44 TPtr desBufPtr = desBuf->Des(); |
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45 stream.ReadL( desBufPtr, length ); |
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46 aArray.AppendL( *desBuf ); |
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47 CleanupStack::PopAndDestroy( desBuf ); |
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48 } |
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49 } |
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50 while ( status == KErrNone ); |
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51 |
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52 if ( status != KErrEof ) |
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53 { |
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54 User::Leave( status ); |
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55 } |
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56 CleanupStack::PopAndDestroy(); // stream |
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57 } |
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58 |
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59 } // namespace |
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60 |
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61 // ---------------------------------------------------------------------------- |
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62 // MEMBER FUNCTIONS |
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63 // ---------------------------------------------------------------------------- |
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64 // |
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65 |
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66 // ---------------------------------------------------------------------------- |
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67 // CNcnUnpackDescrArray::NewLC |
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68 // |
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69 // Symbian two-phased constructor. |
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70 // ---------------------------------------------------------------------------- |
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71 // |
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72 CNcnUnpackDescrArray* CNcnUnpackDescrArray::NewLC() |
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73 { |
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74 CNcnUnpackDescrArray* self = new( ELeave ) CNcnUnpackDescrArray; |
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75 CleanupStack::PushL( self ); |
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76 return self; |
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77 } |
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78 |
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79 // ---------------------------------------------------------------------------- |
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80 // CNcnUnpackDescrArray::UnpackL |
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81 // |
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82 // Unpacks descriptor array from IPC message. |
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83 // ---------------------------------------------------------------------------- |
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84 // |
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85 void CNcnUnpackDescrArray::UnpackL( const RMessagePtr2& aMessage, TInt aParam ) |
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86 { |
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87 const TInt packedLength = aMessage.GetDesLength( aParam ); |
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88 HBufC8* buffer = HBufC8::NewLC( packedLength ); |
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89 TPtr8 bufferPtr = buffer->Des(); |
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90 aMessage.ReadL( aParam, bufferPtr ); |
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91 UnpackArrayL( bufferPtr, iArray ); |
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92 CleanupStack::PopAndDestroy( buffer ); |
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93 } |
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94 |
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95 // ---------------------------------------------------------------------------- |
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96 // CNcnUnpackDescrArray::~CNcnUnpackDescrArray |
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97 // |
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98 // Destructor. |
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99 // ---------------------------------------------------------------------------- |
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100 // |
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101 CNcnUnpackDescrArray::~CNcnUnpackDescrArray() |
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102 { |
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103 } |
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104 |
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105 // ---------------------------------------------------------------------------- |
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106 // CNcnUnpackDescrArray::MdcaCount |
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107 // |
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108 // From MDesCArray. |
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109 // ---------------------------------------------------------------------------- |
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110 // |
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111 TInt CNcnUnpackDescrArray::MdcaCount() const |
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112 { |
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113 return iArray.MdcaCount(); |
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114 } |
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115 |
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116 // ---------------------------------------------------------------------------- |
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117 // CNcnUnpackDescrArray::MdcaPoint |
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118 // |
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119 // From MDesCArray. |
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120 // ---------------------------------------------------------------------------- |
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121 // |
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122 TPtrC16 CNcnUnpackDescrArray::MdcaPoint( TInt aIndex ) const |
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123 { |
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124 return iArray.MdcaPoint( aIndex ); |
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125 } |
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126 |
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127 // ---------------------------------------------------------------------------- |
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128 // CNcnUnpackDescrArray::CNcnUnpackDescrArray |
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129 // |
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130 // Constructor. |
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131 // ---------------------------------------------------------------------------- |
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132 // |
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133 CNcnUnpackDescrArray::CNcnUnpackDescrArray() |
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134 : iArray( KNcnPackedArrayGranularity ) |
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135 { |
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136 } |
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137 |
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138 // End of file |