1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/persistentdata/persistentstorage/sql/SRC/Common/SqlBufFlat.inl Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,104 @@
1.4 +// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +// // RSqlBufFlat class //
1.18 +//
1.19 +//
1.20 +
1.21 +/**
1.22 +
1.23 + @return Flat buffer elements count
1.24 +*/
1.25 +inline TInt RSqlBufFlat::Count() const
1.26 + {
1.27 + SQLFLATBUF_INVARIANT();
1.28 + return iBuf->iCount;
1.29 + }
1.30 +
1.31 +/**
1.32 +@return Flat buffer size (this is not the max size. It refers only to the used part of the flat buffer)
1.33 +*/
1.34 +inline TInt RSqlBufFlat::Size() const
1.35 + {
1.36 + SQLFLATBUF_INVARIANT();
1.37 + return iBuf->iSize;
1.38 + }
1.39 +
1.40 +/**
1.41 +@return Flat buffer max size
1.42 +*/
1.43 +inline TInt RSqlBufFlat::MaxSize() const
1.44 + {
1.45 + SQLFLATBUF_INVARIANT();
1.46 + return iMaxSize;
1.47 + }
1.48 +
1.49 +/**
1.50 +@return A pointer to the beginning of the flat buffer header
1.51 +*/
1.52 +inline RSqlBufFlat::TCell* RSqlBufFlat::Header()
1.53 + {
1.54 + return reinterpret_cast <RSqlBufFlat::TCell*> (iBuf + 1);
1.55 + }
1.56 +
1.57 +/**
1.58 +@return A const pointer to the beginning of the flat buffer header
1.59 +*/
1.60 +inline const RSqlBufFlat::TCell* RSqlBufFlat::Header() const
1.61 + {
1.62 + return reinterpret_cast <const RSqlBufFlat::TCell*> (iBuf + 1);
1.63 + }
1.64 +
1.65 +/**
1.66 +@return The avaliable space in the flat buffer
1.67 +*/
1.68 +inline TInt RSqlBufFlat::Available() const
1.69 + {
1.70 + return iMaxSize - iBuf->iSize;
1.71 + }
1.72 +
1.73 +/**
1.74 +This function returns a const reference to a descriptor object pointing to the internal buffer.
1.75 +BufDes() guarantees to return a const descriptor, whose lifetime is the same as the flat buffer lifetime.
1.76 +(useful when making asynchronous IPC calls)
1.77 +
1.78 +@return A reference to a descriptor object pointing to the internal buffer.
1.79 +*/
1.80 +inline const TDesC8& RSqlBufFlat::BufDes() const
1.81 + {
1.82 + SQLFLATBUF_INVARIANT();
1.83 + iBufPtrC.Set(reinterpret_cast <const TUint8*> (iBuf), iBuf->iSize);
1.84 + return iBufPtrC;
1.85 + }
1.86 +
1.87 +/**
1.88 +This function returns a modifiable reference to a descriptor object pointing to the internal buffer.
1.89 +BufPtr() guarantees to return a modifiable descriptor, whose lifetime is the same as the flat buffer lifetime.
1.90 +(useful when making asynchronous IPC calls)
1.91 +
1.92 +@return A reference to a modifiable descriptor object pointing to the internal buffer.
1.93 +*/
1.94 +inline TPtr8& RSqlBufFlat::BufPtr()
1.95 + {
1.96 + SQLFLATBUF_INVARIANT();
1.97 + iBufPtr.Set(reinterpret_cast <TUint8*> (iBuf), iBuf->iSize, iMaxSize);
1.98 + return iBufPtr;
1.99 + }
1.100 +
1.101 +/**
1.102 +@return The minimal allowed buffer size: sizeof(TBufFlat) + size of the header
1.103 +*/
1.104 +inline TInt RSqlBufFlat::SysDataSize() const
1.105 + {
1.106 + return iBuf->iHeaderSize + sizeof(RSqlBufFlat::TBufFlat);
1.107 + }