author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 26 Jan 2010 13:16:24 +0200 | |
changeset 1 | c084286672be |
parent 0 | 08ec8eefde2f |
permissions | -rw-r--r-- |
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// Copyright (c) 2006-2009 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: |
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// // RSqlBufFlat class // |
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// |
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// |
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/** |
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@return Flat buffer elements count |
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*/ |
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inline TInt RSqlBufFlat::Count() const |
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{ |
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SQLFLATBUF_INVARIANT(); |
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return iBuf->iCount; |
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} |
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/** |
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@return Flat buffer size (this is not the max size. It refers only to the used part of the flat buffer) |
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*/ |
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inline TInt RSqlBufFlat::Size() const |
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{ |
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SQLFLATBUF_INVARIANT(); |
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return iBuf->iSize; |
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} |
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/** |
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@return Flat buffer max size |
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*/ |
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inline TInt RSqlBufFlat::MaxSize() const |
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{ |
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SQLFLATBUF_INVARIANT(); |
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return iMaxSize; |
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} |
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/** |
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@return A pointer to the beginning of the flat buffer header |
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*/ |
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inline RSqlBufFlat::TCell* RSqlBufFlat::Header() |
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{ |
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return reinterpret_cast <RSqlBufFlat::TCell*> (iBuf + 1); |
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} |
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/** |
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@return A const pointer to the beginning of the flat buffer header |
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*/ |
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inline const RSqlBufFlat::TCell* RSqlBufFlat::Header() const |
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{ |
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return reinterpret_cast <const RSqlBufFlat::TCell*> (iBuf + 1); |
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} |
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/** |
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@return The avaliable space in the flat buffer |
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*/ |
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inline TInt RSqlBufFlat::Available() const |
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{ |
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return iMaxSize - iBuf->iSize; |
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} |
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/** |
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This function returns a const reference to a descriptor object pointing to the internal buffer. |
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BufDes() guarantees to return a const descriptor, whose lifetime is the same as the flat buffer lifetime. |
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(useful when making asynchronous IPC calls) |
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@return A reference to a descriptor object pointing to the internal buffer. |
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*/ |
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inline const TDesC8& RSqlBufFlat::BufDes() const |
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{ |
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SQLFLATBUF_INVARIANT(); |
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iBufPtrC.Set(reinterpret_cast <const TUint8*> (iBuf), iBuf->iSize); |
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return iBufPtrC; |
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} |
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/** |
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This function returns a modifiable reference to a descriptor object pointing to the internal buffer. |
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BufPtr() guarantees to return a modifiable descriptor, whose lifetime is the same as the flat buffer lifetime. |
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(useful when making asynchronous IPC calls) |
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@return A reference to a modifiable descriptor object pointing to the internal buffer. |
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*/ |
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inline TPtr8& RSqlBufFlat::BufPtr() |
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{ |
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SQLFLATBUF_INVARIANT(); |
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iBufPtr.Set(reinterpret_cast <TUint8*> (iBuf), iBuf->iSize, iMaxSize); |
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return iBufPtr; |
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} |
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/** |
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@return The minimal allowed buffer size: sizeof(TBufFlat) + size of the header |
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*/ |
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inline TInt RSqlBufFlat::SysDataSize() const |
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{ |
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return iBuf->iHeaderSize + sizeof(RSqlBufFlat::TBufFlat); |
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} |