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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 // |
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15 |
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16 /** |
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17 @internalComponent |
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18 */ |
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19 |
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20 #include "ptpipdatatypes.h" |
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21 #include "cptpipdatacontainer.h" |
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22 |
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23 // Dataset constants |
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24 const TUint CPTPIPDataContainer::KFlatChunkSize(12); |
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25 |
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26 // Dataset element metadata. |
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27 const CMTPTypeCompoundBase::TElementInfo CPTPIPDataContainer::iElementMetaData[CPTPIPDataContainer::ENumElements] = |
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28 { |
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29 {EIdFlatChunk, EMTPTypeFlat, {EMTPTypeUINT32, 0, KMTPTypeUINT32Size}}, // EContainerLength |
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30 {EIdFlatChunk, EMTPTypeFlat, {EMTPTypeUINT32, 4, KMTPTypeUINT32Size}}, // EContainerType |
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31 {EIdFlatChunk, EMTPTypeFlat, {EMTPTypeUINT32, 8, KMTPTypeUINT32Size}}, // ETransactionId |
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32 {EIdPayloadChunk, EMTPTypeUndefined, {EMTPTypeUndefined, KMTPNotApplicable, KMTPNotApplicable}} // EPayload |
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33 }; |
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34 |
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35 /** |
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36 Generic Container's factory method. |
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37 This is used to create an empty MTP PTPIP data container dataset type. |
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38 @return Ownership IS transfered. |
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39 @leave One of the system wide error codes, if unsuccessful. |
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40 */ |
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41 EXPORT_C CPTPIPDataContainer* CPTPIPDataContainer::NewL() |
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42 { |
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43 CPTPIPDataContainer* self = new (ELeave) CPTPIPDataContainer(); |
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44 CleanupStack::PushL(self); |
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45 self->ConstructL(); |
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46 CleanupStack::Pop(self); |
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47 return self; |
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48 } |
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49 |
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50 /** |
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51 Destructor. |
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52 */ |
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53 EXPORT_C CPTPIPDataContainer::~CPTPIPDataContainer() |
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54 { |
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55 iChunkHeader.Close(); |
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56 } |
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57 |
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58 /** |
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59 Constructor. |
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60 */ |
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61 CPTPIPDataContainer::CPTPIPDataContainer( ) : |
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62 CMTPTypeCompoundBase((!KJustInTimeConstruction), EIdNumChunks), iChunkHeader( |
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63 KFlatChunkSize, *this), |
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64 iElementInfo(iElementMetaData, ENumElements),iIsNextHeader(EFalse) |
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65 { |
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66 |
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67 } |
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68 |
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69 /** |
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70 Second phase constructor. |
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71 */ |
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72 void CPTPIPDataContainer::ConstructL( ) |
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73 { |
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74 iChunkHeader.OpenL ( ); |
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75 ChunkAppendL (iChunkHeader ); |
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76 } |
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77 |
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78 /** |
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79 Provides the bulk container payload. |
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80 @return The bulk container payload. |
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81 */ |
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82 EXPORT_C MMTPType* CPTPIPDataContainer::Payload() const |
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83 { |
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84 return iPayload; |
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85 } |
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86 |
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87 /** |
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88 Sets the bulk container payload. |
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89 @param aPayload The new bulk container payload. |
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90 */ |
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91 EXPORT_C void CPTPIPDataContainer::SetPayloadL(MMTPType* aPayload) |
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92 { |
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93 if (iPayload) |
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94 { |
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95 // Remove the existing payload from the super class. |
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96 ChunkRemove(iElementMetaData[EPayload].iChunkId); |
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97 } |
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98 |
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99 if (aPayload) |
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100 { |
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101 // Pass the payload to the super class for management. |
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102 ChunkAppendL(*aPayload); |
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103 } |
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104 iPayload = aPayload; |
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105 iIsNextHeader = EFalse; |
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106 } |
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107 |
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108 EXPORT_C TUint CPTPIPDataContainer::Type() const |
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109 { |
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110 return EPTPIPTypeDataContainer; |
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111 } |
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112 |
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113 const CMTPTypeCompoundBase::TElementInfo& CPTPIPDataContainer::ElementInfo( |
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114 TInt aElementId ) const |
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115 { |
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116 __ASSERT_DEBUG((aElementId < ENumElements), User::Invariant()); |
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117 return iElementInfo[aElementId]; |
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118 } |
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119 |
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120 /** |
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121 Over-ridden implementation of FirstWriteChunk() derived from CMTPTypeCompoundBase. |
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122 This sets the Write Sequence-State to EInProgressNext, forcing the headers, from the second |
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123 PTP/IP packet onwards,to be ignored |
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124 @param aChunk The data that is currently given by Initiator |
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125 **/ |
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126 EXPORT_C TInt CPTPIPDataContainer::FirstWriteChunk(TPtr8& aChunk) |
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127 { |
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128 TInt err(KErrNone); |
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129 |
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130 aChunk.Set(NULL, 0, 0); |
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131 |
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132 |
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133 if (iChunks.Count() == 0) |
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134 { |
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135 err = KErrNotFound; |
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136 } |
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137 else |
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138 { |
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139 iWriteChunk = 0; |
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140 |
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141 TInt iWriteErr = iChunks[iWriteChunk]->FirstWriteChunk(aChunk); |
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142 |
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143 if ((iIsNextHeader) && (iWriteErr == KMTPChunkSequenceCompletion)) |
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144 iWriteErr = KErrNone; |
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145 |
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146 switch (iWriteErr) |
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147 { |
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148 case KMTPChunkSequenceCompletion: |
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149 if ((iWriteChunk + 1) < iChunks.Count()) |
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150 { |
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151 iWriteSequenceState = EInProgressFirst; |
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152 err = KErrNone; |
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153 } |
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154 else |
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155 { |
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156 iWriteSequenceState = EIdle; |
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157 } |
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158 break; |
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159 |
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160 case KErrNone: |
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161 iWriteSequenceState = EInProgressNext; |
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162 break; |
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163 |
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164 default: |
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165 break; |
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166 } |
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167 } |
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168 |
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169 iIsNextHeader = ETrue; |
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170 |
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171 return err; |
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172 } |
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173 |
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174 /** |
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175 Over-ridden implementation of CommitChunkL() derived from CMTPTypeCompoundBase. |
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176 This increments the number of chunks read only after, the first header is read |
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177 @param aChunk The data that is currently given by Initiator |
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178 **/ |
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179 EXPORT_C MMTPType* CPTPIPDataContainer::CommitChunkL(TPtr8& aChunk) |
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180 { |
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181 MMTPType *chunk(iChunks[iWriteChunk]); |
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182 MMTPType* res = NULL; |
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183 if (chunk->CommitRequired()) |
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184 { |
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185 res = chunk->CommitChunkL(aChunk); |
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186 } |
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187 |
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188 |
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189 if (iWriteChunk == 0) |
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190 { |
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191 iWriteChunk++; |
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192 } |
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193 |
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194 return res; |
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195 } |
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196 |