author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 08:55:47 +0200 | |
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permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Common utility functions |
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* |
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*/ |
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|
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|
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// ---------------------------------------------------------------------------- |
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// Copies elements from one array of objects of type T to another |
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// ---------------------------------------------------------------------------- |
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// |
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template<typename T> |
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inline void CopyArrayL(const TArray<T>& aSrc, RArray<T>& aDest) |
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{ |
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aDest.Reset(); |
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for (TInt i=0; i < aSrc.Count(); ++i) |
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{ |
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aDest.AppendL(aSrc[i]); |
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} |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Copies elements from one array of descriptors to another |
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// ---------------------------------------------------------------------------- |
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// |
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inline void CopyArrayL(const MDesCArray& aSrc, CDesCArray& aDest) |
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{ |
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MPXUser::CopyArrayL(aSrc, aDest); |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Transfer a buffer from server |
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// ---------------------------------------------------------------------------- |
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// |
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inline void TransferBufferFromServerL(const RMPXSession& aSess, |
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TInt aCmd, |
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TInt aSize, |
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CBufBase*& aBuffer) |
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{ |
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delete aBuffer; |
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aBuffer = NULL; |
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if (aSize==0) |
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{ |
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User::Leave(KErrArgument); |
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} |
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|
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CBufBase* buffer = MPXUser::CreateBufferLC(aSize); |
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TPtr8 ptr(buffer->Ptr(0)); |
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aSess.SendReceiveL(aCmd,TIpcArgs(&ptr)); |
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CleanupStack::Pop(buffer); |
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aBuffer = buffer; |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Internalize a pointer array from stream |
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// ---------------------------------------------------------------------------- |
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// |
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template<typename T> |
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inline void InternalizeL(RPointerArray<T>& aArray, RReadStream& aStream) |
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{ |
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TInt n=aStream.ReadInt32L(); |
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for (TInt i=0;i<n;++i) |
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{ |
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T* entry = new (ELeave) T; |
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CleanupStack::PushL(entry); |
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aStream >> *entry; |
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aArray.AppendL(entry); |
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CleanupStack::Pop(entry); |
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} |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Internalize a pointer array from stream |
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// ---------------------------------------------------------------------------- |
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// |
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template<typename T> |
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inline void InternalizeCObjectArrayL( |
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RPointerArray<T>& aArray, |
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RReadStream& aStream) |
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{ |
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TInt n=aStream.ReadInt32L(); |
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for (TInt i=0;i<n;++i) |
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{ |
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T* entry = T::NewL(); |
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CleanupStack::PushL(entry); |
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aStream >> *entry; |
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aArray.AppendL(entry); |
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CleanupStack::Pop(entry); |
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} |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Internalize an array from stream |
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// ---------------------------------------------------------------------------- |
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// |
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template<typename T> |
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inline void InternalizeL(RArray<T>& aArray, RReadStream& aStream) |
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109 |
{ |
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TInt n=aStream.ReadInt32L(); |
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for (TInt i=0;i<n;++i) |
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112 |
{ |
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TPckgBuf<T> item; |
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aStream.ReadL(item); |
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aArray.AppendL(item()); |
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} |
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} |
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118 |
|
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119 |
// ---------------------------------------------------------------------------- |
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// Internalize a descriptor array from stream |
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121 |
// ---------------------------------------------------------------------------- |
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122 |
// |
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inline void InternalizeL(CDesCArray& aArray, RReadStream& aStream) |
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124 |
{ |
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TInt n=aStream.ReadInt32L(); |
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for (TInt i=0;i<n;++i) |
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127 |
{ |
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TInt length=aStream.ReadInt32L(); |
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HBufC* item = HBufC::NewLC(length); |
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TPtr ptr = item->Des(); |
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aStream.ReadL(ptr, length); |
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aArray.AppendL(*item); |
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CleanupStack::PopAndDestroy(item); |
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134 |
} |
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135 |
} |
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136 |
|
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137 |
// ---------------------------------------------------------------------------- |
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138 |
// Exernalize a pointer array to stream |
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139 |
// ---------------------------------------------------------------------------- |
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140 |
// |
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141 |
template<typename T> |
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142 |
inline void ExternalizeL(const TArray<T*>& aArray, RWriteStream& aStream) |
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143 |
{ |
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TInt len = aArray.Count(); |
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aStream.WriteInt32L(len); |
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for(TInt i = 0;i<len;i++) |
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147 |
{ |
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T &entry = *aArray[i]; |
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aStream << entry; |
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150 |
} |
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151 |
} |
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152 |
|
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153 |
// ---------------------------------------------------------------------------- |
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154 |
// Externalize an array to stream |
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155 |
// ---------------------------------------------------------------------------- |
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156 |
// |
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157 |
template<typename T> |
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158 |
inline void ExternalizeL(const TArray<T>& aArray, RWriteStream& aStream) |
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159 |
{ |
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TInt n=aArray.Count(); |
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aStream.WriteInt32L(n); |
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for (TInt i=0;i<n;++i) |
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163 |
{ |
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TPckgBuf<T> item(aArray[i]); |
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aStream.WriteL(item); |
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166 |
} |
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167 |
} |
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168 |
|
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169 |
// ---------------------------------------------------------------------------- |
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// Externalize a descriptor array to stream |
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171 |
// ---------------------------------------------------------------------------- |
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172 |
// |
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173 |
inline void ExternalizeL(const MDesCArray& aArray, RWriteStream& aStream) |
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174 |
{ |
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TInt n=aArray.MdcaCount(); |
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176 |
aStream.WriteInt32L(n); |
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177 |
for (TInt i=0;i<n;++i) |
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178 |
{ |
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TInt length=aArray.MdcaPoint(i).Length(); |
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aStream.WriteInt32L(length); |
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aStream.WriteL(aArray.MdcaPoint(i)); |
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182 |
} |
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183 |
} |
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184 |
|
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185 |
// ---------------------------------------------------------------------------- |
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186 |
// Helper function to create an array from buf. |
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187 |
// ---------------------------------------------------------------------------- |
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188 |
// |
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189 |
template<typename T> |
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inline void CreateFromBufferL(const CBufBase &aBuf, CArrayFix<T>*& aArray) |
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191 |
{ |
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delete aArray; |
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aArray = NULL; |
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RBufReadStream rs(aBuf); |
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CleanupClosePushL(rs); |
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CArrayFix<T>* array=new(ELeave)CArrayFixFlat<T>(1); //magic number |
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CleanupStack::PushL(array); |
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rs >> *array; |
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CleanupStack::Pop(array); |
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aArray = array; |
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CleanupStack::PopAndDestroy(&rs); |
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} |
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203 |
|
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204 |
// ---------------------------------------------------------------------------- |
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// Helper function to create a descriptor array from buf. |
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206 |
// ---------------------------------------------------------------------------- |
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207 |
// |
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208 |
inline void CreateFromBufferL(const CBufBase &aBuf, CDesCArray*& aArray) |
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209 |
{ |
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delete aArray; |
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aArray = NULL; |
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RBufReadStream rs(aBuf); |
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CleanupClosePushL(rs); |
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CDesCArray* array=new(ELeave)CDesCArrayFlat(1); //magic number |
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CleanupStack::PushL(array); |
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InternalizeL(*array, rs); |
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CleanupStack::Pop(array); |
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aArray = array; |
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CleanupStack::PopAndDestroy(&rs); |
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} |
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221 |
|
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// ---------------------------------------------------------------------------- |
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// Helper function to create an array from buf. |
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// ---------------------------------------------------------------------------- |
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// |
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template<typename T> |
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inline void CreateFromBufferL(const CBufBase &aBuf, RPointerArray<T>& aArray) |
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228 |
{ |
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aArray.ResetAndDestroy(); |
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RBufReadStream rs(aBuf); |
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CleanupClosePushL(rs); |
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InternalizeL(aArray, rs); |
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CleanupStack::PopAndDestroy(&rs); |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Helper function to create an array from buf. |
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// ---------------------------------------------------------------------------- |
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// |
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template<typename T> |
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inline void CreateFromBufferL(const CBufBase &aBuf, RArray<T>& aArray) |
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{ |
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aArray.Reset(); |
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RBufReadStream rs(aBuf); |
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CleanupClosePushL(rs); |
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InternalizeL(aArray, rs); |
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CleanupStack::PopAndDestroy(&rs); |
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} |
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249 |
|
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// ---------------------------------------------------------------------------- |
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// Retrieves an object of from buffer |
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// ---------------------------------------------------------------------------- |
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253 |
// |
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254 |
template<typename T> |
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inline void CreateFromBufferL(const CBufBase &aBuf, T*& aObject) |
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256 |
{ |
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delete aObject; |
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aObject = NULL; |
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RBufReadStream rs(aBuf); |
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CleanupClosePushL(rs); |
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aObject=new(ELeave)T; |
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CleanupStack::PushL(aObject); |
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rs>>*aObject; |
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CleanupStack::Pop(aObject); |
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CleanupStack::PopAndDestroy(&rs); |
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} |
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267 |
|
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// ---------------------------------------------------------------------------- |
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// Retrieves an object of from buffer |
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// Note: class T must implement T::NewL(RReadStream& aStream) constructor |
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// ---------------------------------------------------------------------------- |
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272 |
// |
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template<typename T> |
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inline void NewFromBufferL(const CBufBase &aBuf, T*& aObject) |
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{ |
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delete aObject; |
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aObject = NULL; |
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RBufReadStream rs(aBuf); |
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CleanupClosePushL(rs); |
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aObject=T::NewL(); |
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CleanupStack::PushL(aObject); |
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rs>>*aObject; |
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CleanupStack::Pop(aObject); |
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CleanupStack::PopAndDestroy(&rs); |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Retrieves an object of from message buffer |
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// ---------------------------------------------------------------------------- |
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// |
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template<typename T> |
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inline void CreateFromMessageL(const RMessage2& aMessage, |
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TInt aMsgSlot, |
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T*& aObject) |
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{ |
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CBufBase* buffer(NULL); |
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MPXUser::CreateBufferL(aMessage, aMsgSlot, buffer); |
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CleanupStack::PushL(buffer); |
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CreateFromBufferL<T>(*buffer, aObject); |
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CleanupStack::PopAndDestroy(buffer); |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Retrieves an object of from message buffer |
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// ---------------------------------------------------------------------------- |
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// |
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template<typename T> |
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inline void NewFromMessageL(const RMessage2& aMessage, |
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TInt aMsgSlot, |
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T*& aObject) |
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{ |
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CBufBase* buffer(NULL); |
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MPXUser::CreateBufferL(aMessage, aMsgSlot, buffer); |
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CleanupStack::PushL(buffer); |
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NewFromBufferL<T>(*buffer, aObject); |
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CleanupStack::PopAndDestroy(buffer); |
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} |
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|
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// ---------------------------------------------------------------------------- |
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320 |
// Copy an object into the buffer |
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|
321 |
// ---------------------------------------------------------------------------- |
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322 |
// |
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|
323 |
template<typename T> |
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324 |
inline void CreateBufferL(const T& aObj, CBufBase*& aBuffer) |
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325 |
{ |
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|
326 |
delete aBuffer; |
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327 |
aBuffer = NULL; |
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CBufBase* buffer = CBufFlat::NewL(KMPXBufGranularity); |
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|
329 |
CleanupStack::PushL(buffer); |
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|
330 |
RBufWriteStream ws(*buffer); |
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|
331 |
CleanupClosePushL(ws); |
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|
332 |
ws<<aObj; |
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|
333 |
ws.CommitL(); |
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|
334 |
CleanupStack::PopAndDestroy(&ws); |
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|
335 |
buffer->Compress(); |
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|
336 |
CleanupStack::Pop(buffer); |
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337 |
aBuffer = buffer; |
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338 |
} |
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339 |
|
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340 |
// ---------------------------------------------------------------------------- |
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341 |
// Create the buffer from an array |
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342 |
// ---------------------------------------------------------------------------- |
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343 |
// |
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344 |
template<typename T> |
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345 |
inline void CreateBufferL(const TArray<T>& aArray, CBufBase*& aBuffer) |
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346 |
{ |
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347 |
delete aBuffer; |
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348 |
aBuffer = NULL; |
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349 |
TInt size=aArray.Count()*sizeof(TPckgBuf<T>)+sizeof(TInt); |
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350 |
CBufBase* buffer = MPXUser::CreateBufferLC(size); |
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|
351 |
RBufWriteStream ws(*buffer); |
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|
352 |
CleanupClosePushL(ws); |
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|
353 |
ExternalizeL(aArray, ws); |
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354 |
ws.CommitL(); |
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355 |
CleanupStack::PopAndDestroy(&ws); |
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|
356 |
buffer->Compress(); |
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|
357 |
CleanupStack::Pop(buffer); |
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|
358 |
aBuffer = buffer; |
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|
359 |
} |
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|
360 |
|
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361 |
// ---------------------------------------------------------------------------- |
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362 |
// Create the buffer from an array of object |
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363 |
// ---------------------------------------------------------------------------- |
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364 |
// |
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|
365 |
template<typename T> |
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366 |
inline void CreateBufferL(const TArray<T*>& aArray, CBufBase*& aBuffer) |
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|
367 |
{ |
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368 |
delete aBuffer; |
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369 |
aBuffer = NULL; |
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370 |
CBufBase* buffer = CBufFlat::NewL(KMPXBufGranularity); |
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|
371 |
CleanupStack::PushL(buffer); |
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|
372 |
RBufWriteStream ws(*buffer); |
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|
373 |
CleanupClosePushL(ws); |
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|
374 |
ExternalizeL(aArray, ws); |
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|
375 |
ws.CommitL(); |
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|
376 |
CleanupStack::PopAndDestroy(&ws); |
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|
377 |
buffer->Compress(); |
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|
378 |
CleanupStack::Pop(buffer); |
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|
379 |
aBuffer = buffer; |
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|
380 |
} |
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|
381 |
|
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|
382 |
// ---------------------------------------------------------------------------- |
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|
383 |
// Copy an array from the server |
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|
384 |
// ---------------------------------------------------------------------------- |
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|
385 |
// |
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|
386 |
template<typename T> |
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|
387 |
void ArrayFromServerL(const RMPXSession& aSess, |
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|
388 |
TInt aCmd, |
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|
389 |
TInt aSize, |
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|
390 |
CArrayFixBase*& aArray) |
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|
391 |
{ |
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Revision: 200949
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|
392 |
delete aArray; |
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|
393 |
aArray = NULL; |
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|
394 |
|
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|
395 |
CBufBase* buffer(NULL); |
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|
396 |
TransferBufferFromServerL(aSess, aCmd, aSize, buffer); |
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|
397 |
if (!buffer) |
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Revision: 200949
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|
398 |
{ |
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Revision: 200949
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|
399 |
CleanupStack::PushL(buffer); |
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|
400 |
CArrayFix<T>* array = NULL; |
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|
401 |
CreateFromBufferL<T>(*buffer, array); |
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|
402 |
aArray = array; |
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Revision: 200949
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diff
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|
403 |
CleanupStack::PopAndDestroy(buffer); |
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|
404 |
} |
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Revision: 200949
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|
405 |
} |
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Revision: 200949
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parents:
diff
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|
406 |
|
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Revision: 200949
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parents:
diff
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|
407 |
// ---------------------------------------------------------------------------- |
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Revision: 200949
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|
408 |
// Copy an array from the server |
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Revision: 200949
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|
409 |
// ---------------------------------------------------------------------------- |
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Revision: 200949
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|
410 |
// |
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Revision: 200949
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parents:
diff
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|
411 |
template<typename T> |
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Revision: 200949
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parents:
diff
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|
412 |
void ArrayFromServerL(const RMPXSession& aSess, |
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Revision: 200949
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|
413 |
TInt aCmd, |
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Revision: 200949
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|
414 |
TInt aSize, |
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Revision: 200949
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parents:
diff
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|
415 |
RPointerArray<T>& aArray) |
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Revision: 200949
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parents:
diff
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|
416 |
{ |
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Revision: 200949
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parents:
diff
changeset
|
417 |
CBufBase* buffer(NULL); |
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Revision: 200949
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parents:
diff
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|
418 |
TransferBufferFromServerL(aSess, aCmd, aSize, buffer); |
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Revision: 200949
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parents:
diff
changeset
|
419 |
CleanupStack::PushL(buffer); |
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Revision: 200949
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diff
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|
420 |
CreateFromBufferL<T>(*buffer, aArray); |
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Revision: 200949
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diff
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|
421 |
CleanupStack::PopAndDestroy(buffer); |
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Revision: 200949
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diff
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|
422 |
} |
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Revision: 200949
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diff
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|
423 |
|
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Revision: 200949
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diff
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|
424 |
// ---------------------------------------------------------------------------- |
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Revision: 200949
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diff
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|
425 |
// Copy an array from the server |
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Revision: 200949
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parents:
diff
changeset
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// ---------------------------------------------------------------------------- |
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// |
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template<typename T> |
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void ArrayFromServerL(const RMPXSession& aSess, |
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TInt aCmd, |
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TInt aSize, |
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RArray<T>& aArray) |
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{ |
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CBufBase* buffer(NULL); |
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TransferBufferFromServerL(aSess, aCmd, aSize, buffer); |
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CleanupStack::PushL(buffer); |
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CreateFromBufferL<T>(*buffer, aArray); |
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CleanupStack::PopAndDestroy(buffer); |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Packages an object of type T into a descriptor and writes back to the |
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// client space in message slot aMsgSlot of aMessage. |
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// ---------------------------------------------------------------------------- |
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// |
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template<typename T> void WriteL(const RMessage2& aMessage, |
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TInt aMsgSlot,T aValue) |
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{ |
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TPckgC<T> value(aValue); |
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aMessage.WriteL(aMsgSlot,value); |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Default constructor |
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// ---------------------------------------------------------------------------- |
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// |
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template <class T> |
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inline RMPXPointerArray<T>::RMPXPointerArray() |
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459 |
{ |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Closes the array and frees all resources; |
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// ---------------------------------------------------------------------------- |
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// |
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template <class T> |
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inline void RMPXPointerArray<T>::Close() |
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{ |
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this->ResetAndDestroy(); |
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RPointerArray<T>::Close(); |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Destructor |
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// ---------------------------------------------------------------------------- |
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// |
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template <class T> |
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inline RMPXPointerArray<T>::~RMPXPointerArray() |
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{ |
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Close(); |
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} |
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|
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template<typename T> |
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inline void DeleteL(const T* aItem, RPointerArray<T>& aArray) |
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{ |
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TInt index = aArray.FindL(aItem); |
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aArray.Remove(index); |
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delete aItem; |
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} |
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// End of file |