persistentstorage/dbms/ustor/US_TABLE.CPP
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 09 Jun 2010 11:36:09 +0300
branchRCL_3
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permissions -rw-r--r--
Revision: 201023 Kit: 2010123
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// Copyright (c) 1998-2009 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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//
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#include "US_STD.H"
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//#define __READBIT_CLASS
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//#define __WRITEBIT_CLASS
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#ifdef __READBIT_CLASS
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class TReadBitSequence
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	{
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public:
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	inline TReadBitSequence();
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	inline TBool HasBits() const;
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	TUint Read(const TUint8*& aPtr);
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private:
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	TUint iBits;
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	};
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inline TReadBitSequence::TReadBitSequence()
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	:iBits(0) {}
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inline TBool TReadBitSequence::HasBits() const
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	{return (iBits&0x2000000);}
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TUint TReadBitSequence::Read(const TUint8*& aPtr)
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	{
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	iBits>>=1;
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	if ((iBits&0x1000000)==0)
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		iBits=*aPtr++ | 0xff000000u;
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	return iBits&1;
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	}
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#define READBITINIT(This) TReadBitSequence This
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#define READHASBITS(This) This.HasBits()
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#define READBIT(This,ptr) This.Read(ptr)
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#define SKIPBIT(This,ptr) READBIT(This,ptr)
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#else
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#define READBITINIT(This) TUint This##_bits=0
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#define READHASBITS(This) (This##_bits&0x2000000)
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#define SKIPBIT(This,ptr) (This##_bits>>=1,(This##_bits&0x1000000 ? void(0) : void(This##_bits=*ptr++|0xff000000u)))
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#define READBIT(This,ptr) (SKIPBIT(This,ptr),This##_bits&1)
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#endif
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#ifdef __WRITEBIT_CLASS
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class TWriteBitSequence
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	{
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public:
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	inline TWriteBitSequence();
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	TUint8* Write(TUint8* aPtr,TUint aBit);
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	void Flush();
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private:
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	TUint iBits;
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	TUint8* iPtr;
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	};
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inline TWriteBitSequence::TWriteBitSequence()
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	:iBits(0),iPtr(0) {}
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TUint8* TWriteBitSequence::Write(TUint8* aPtr,TUint aBit)
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	{
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	TUint bits=iBits>>1;
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	if ((bits&0x1000000)==0)
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		{
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		if (iPtr)
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			*iPtr=TUint8(bits);
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		iPtr=aPtr++;
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		bits=0xff000000;
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		}
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	if (aBit)
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		bits|=0x100;
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	iBits=bits;
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	return aPtr;
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	}
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void TWriteBitSequence::Flush()
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	{
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	TUint8* ptr=iPtr;
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	if (ptr)
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		{
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		TUint bits=iBits;
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		do bits>>=1; while (bits&0x1000000);
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		*ptr=TUint8(bits);
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		}
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	}
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#define WRITEBITINIT(This) TWriteBitSequence This
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#define WRITEBIT(This,ptr,bit) ptr=This.Write(ptr,bit)
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#define WRITEZEROBIT(This,ptr) ptr=This.Write(ptr,0)
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#define FLUSHBITS(This) This.Flush()
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#else
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#define WRITEBITINIT(This) TUint32 This##_bits=0; TUint8* This##_ptr=0
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#define NEXTBIT(This,ptr) This##_bits>>=1;if ((This##_bits&0x1000000)==0){if (This##_ptr) *This##_ptr=TUint8(This##_bits);This##_ptr=ptr++;This##_bits=0xff000000;}
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#define WRITEZEROBIT(This,ptr) {NEXTBIT(This,ptr)}
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#define WRITEBIT(This,ptr,bit) {NEXTBIT(This,ptr) if (bit) This##_bits|=0x100;}
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#define FLUSHBITS(This) {if (This##_ptr){do This##_bits>>=1; while (This##_bits&0x1000000);*This##_ptr=TUint8(This##_bits);}}
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#endif
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LOCAL_C const TUint8* Read32(const TUint8* aPtr,TUint32* aDest)
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// fast read for non-aligned little-endian 32-bit data
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	{
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	TUint32 x=*aPtr++;
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	x|=*aPtr++<<8;
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	x|=*aPtr++<<16;
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   109
	x|=*aPtr++<<24;
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	*aDest=x;
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	return aPtr;
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	}
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   113
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   114
LOCAL_C TUint8* Write32(TUint8* aPtr,TUint32 aVal)
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// fast transfer for non-aligned little-endian 32-bit data
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	{
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	*aPtr++=TUint8(aVal);
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	*aPtr++=TUint8(aVal>>8);
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	*aPtr++=TUint8(aVal>>16);
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	*aPtr++=TUint8(aVal>>24);
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	return aPtr;
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	}
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   123
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inline const TUint8* Read16(const TUint8* aPtr,TUint32* aDest)
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// Read unsigned 16-bit value into aDest storage
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	{
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	TUint x=*aPtr++;
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	x|=*aPtr++<<8;
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	*aDest=TUint16(x);
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	return aPtr;
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	}
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   132
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inline const TUint8* Read16s(const TUint8* aPtr,TUint32* aDest)
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// Read signed 16-bit value into aDest storage
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	{
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	TInt x=*aPtr++<<16;
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	x|=*aPtr++<<24;
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	*aDest=x>>16;
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	return aPtr;
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	}
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   141
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inline TUint8* Write16(TUint8* aPtr,TUint aVal)
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// Write little-endian rep of the low 16 bits of aVal
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	{
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	*aPtr++=TUint8(aVal);
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   146
	*aPtr++=TUint8(aVal>>8);
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	return aPtr;
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   148
	}
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   149
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LOCAL_C TUint8* WriteCardinality(TUint8* aPtr,TUint aVal)
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// compress cardinality into the data stream
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	{
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	__ASSERT(aVal<(1u<<30));
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	if ((aVal>>7)==0)
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		{
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		*aPtr++=TUint8(aVal<<1);
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		return aPtr;
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		}
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	aVal=(aVal<<2)|1;
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   160
	if ((aVal>>16)==0)
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   161
		{
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		*aPtr++=TUint8(aVal);
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		*aPtr++=TUint8(aVal>>8);
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		return aPtr;
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   165
		}
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	return Write32(aPtr,aVal|2);
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   167
	}
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   168
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   169
LOCAL_C TUint ReadCardinality(const TUint8* aPtr)
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// extract cardinality from the data stream
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	{
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	TUint x=aPtr[0];
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   173
	if ((x&1)==0)
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		return x>>1;
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   175
	x|=aPtr[1]<<8;
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   176
	if (x&2)
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   177
		{
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   178
		x|=aPtr[2]<<16;
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   179
		x|=aPtr[3]<<24;
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   180
		}
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	return x>>2;
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   182
	}
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   183
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   184
LOCAL_C const TUint8* ReadCardinality(const TUint8* aPtr,TInt& aVal)
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// extract cardinality from the data stream
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   186
	{
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	TUint x=*aPtr++;
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   188
	if ((x&1)==0)
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		x>>=1;
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   190
	else
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   191
		{
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   192
		x|=*aPtr++<<8;
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   193
		if (x&2)
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   194
			{
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   195
			x|=*aPtr++<<16;
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   196
			x|=*aPtr++<<24;
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   197
			}
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		x>>=2;
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   199
		}
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	aVal=x;
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   201
	return aPtr;
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   202
	}
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   203
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   204
LOCAL_C TInt SizeOfCardinality(TUint aVal)
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   205
// report the externalized size of the Compressed value in bytes
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   206
	{
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   207
	if ((aVal>>7)==0)
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		return 1;
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   209
	return (aVal>>14)==0 ? 2 : 4;
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   210
	}
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   211
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   212
LOCAL_C TUint8* WriteBlobId(TUint8* aPtr,TDbBlobId aId)
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   213
	{
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   214
	return WriteCardinality(aPtr,(aId>>24)|(aId<<8>>4));
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   215
	}
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   216
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   217
LOCAL_C const TUint8* ReadBlobId(const TUint8* aPtr,TDbBlobId& aId)
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   218
	{
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   219
	aPtr=ReadCardinality(aPtr,*reinterpret_cast<TInt*>(&aId));
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   220
	aId=(aId>>4)|(aId<<28>>4);
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   221
	return aPtr;
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	}
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LOCAL_C TInt SizeOfBlobId(TDbBlobId aId)
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	{
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	return SizeOfCardinality((aId>>24)|(aId<<8>>4));
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	}
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// Class CDbStoreTable
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CDbStoreTable::CDbStoreTable(CDbStoreDatabase& aDatabase,const CDbTableDef& aDef)
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	: CDbTable(aDatabase,aDef)
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	{}
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CDbRecordSpace* CDbStoreTable::RecordSpaceL()
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//
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// open records handler
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//
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	{
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	return CDbStoreRecords::NewL(Database().ClusterCacheL(),Def());
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	}
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CDbBlobSpace* CDbStoreTable::BlobSpaceL()
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//
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// Open a blobs accessor for the table
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//
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	{
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	return new(ELeave) CDbStoreBlobs(Database(),Def().InlineLimit());
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	}
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CDbRecordIndex* CDbStoreTable::RecordIndexL(const CDbTableIndexDef& anIndex)
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//
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// Open an index
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//
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	{
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	return CDbStoreIndex::NewL(Database(),(const CDbStoreIndexDef&)anIndex,Def());
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	}
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static TUint8* CompressUnicode(TUint8* aRec,const TAny* aData,TInt aSize)
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//
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// initially assume the compressed data requires 1 byte for the length data
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// Copy it if more is necessary. This avoids having to run the compressor twice
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//
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	{
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	TMemoryUnicodeSource source(reinterpret_cast<const TUint16*>(aData));
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	TUnicodeCompressor compressor;
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	TInt output;
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	compressor.CompressL(aRec+1,source,KMaxTInt,aSize>>1,&output);
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	TInt lenSize=SizeOfCardinality(output);
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	if (lenSize!=1)
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		Mem::Copy(aRec+lenSize,aRec+1,output);	// needs more space for length
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	return WriteCardinality(aRec,output)+output;
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	}
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static TInt SizeOfCompressedUnicode(const TAny* aData,TInt aSize)
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//
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// bytes required to store the unicode data
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//
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	{
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	TMemoryUnicodeSource source(reinterpret_cast<const TUint16*>(aData));
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	TInt size=TUnicodeCompressor::CompressedSizeL(source,aSize>>1);
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	return SizeOfCardinality(size)+size;
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	}
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static const TUint8* ExpandUnicodeL(const TUint8* aRec,TAny* aTarget,const TAny* aLimit,TInt& aChars)
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//
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// Read compressed unicode from the record
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//
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	{
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	TInt bytes;
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	aRec=ReadCardinality(aRec,bytes);
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	TMemoryUnicodeSink unicode(reinterpret_cast<TUint16*>(aTarget));
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	TUnicodeExpander expander;
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	TInt used;
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	expander.ExpandL(unicode,aRec,(TUint16*)aLimit-(TUint16*)aTarget,bytes,&aChars,&used);
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	return bytes==used ? aRec+bytes : 0;	// signal corruption in data, could not fit text in space
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	}
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   298
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static TInt SizeOfExpandedUnicodeL(const TUint8* aData,TInt aSize)
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//
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// bytes required to store the unicode data
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//
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	{
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	return TUnicodeExpander::ExpandedSizeL(aData,aSize)<<1;
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   305
	}
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   306
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TInt CDbStoreTable::RecordLength(const RDbRow& aRow)
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//
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// Calculate the size of a record
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//
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   311
	{
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	TInt bits=SizeOfCardinality(OptimizedRowLength(aRow))<<3;		// record buffer size
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	HDbColumnSet::TIteratorC col=Def().Columns().Begin();
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	const TDbCell* const last=aRow.Last();
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	for (const TDbCell* column=aRow.First();column<last;++col,column=column->Next())
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   316
		{
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		__ASSERT(col<Def().Columns().End());	// columns off end
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		TInt size=column->Length();
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   319
		if ((col->iAttributes&TDbCol::ENotNull)==0)
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   320
			{	//nullable
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   321
			++bits;
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   322
			if (size==0)
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   323
				continue;			// no data
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   324
			}
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		__ASSERT(size>0);	// must be non-null to reach here
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		TDbColType type=col->Type();
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		__ASSERT(type>=EDbColBit&&type<=EDbColLongBinary);
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   328
		if (type==EDbColBit)
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			++bits;
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   330
		else if (type<=EDbColDateTime)
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   331
			bits+=TRecordSize::FixedFieldSize(type)<<3;
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   332
		else if (type==EDbColText16)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   333
			bits+=SizeOfCompressedUnicode(column->Data(),size)<<3;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   334
		else if (type<=EDbColBinary)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   335
			bits+=8+(size<<3);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   336
		else
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   337
			{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   338
			__ASSERT(type<=EDbColLongBinary);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   339
			const TDbBlob& blob=*(const TDbBlob*)column->Data();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   340
			if (!blob.IsInline())
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   341
				bits+=1+((SizeOfBlobId(blob.Id())+SizeOfCardinality(blob.Size()))<<3);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
			else if (type!=EDbColLongText16)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
				bits+=9+(blob.Size()<<3);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
			else
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
				bits+=1+(SizeOfCompressedUnicode(blob.Data(),blob.Size())<<3);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
			}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
		}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
	__ASSERT(bits<=(KDbStoreMaxRecordLength<<3));
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
	return (bits+7)>>3;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
TInt CDbStoreTable::OptimizedRowLength(const RDbRow& aRow)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
// Calculate the minimal row buffer size (in words) to store the row data
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
	HDbColumnSet::TIteratorC col=Def().Columns().Begin();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
	const TDbCell* const last=aRow.Last();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
	TInt cellHead=0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
	TInt words=0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
	for (const TDbCell* column=aRow.First();column<last;++col,column=column->Next())
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
		{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
		++cellHead;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
		__ASSERT(col<Def().Columns().End());	// columns off end
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
		TInt size=column->Length();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
		if (size==0)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
			continue;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
		words+=cellHead;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
		cellHead=0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
		TDbColType type=col->Type();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
		__ASSERT(type>=EDbColBit&&type<=EDbColLongBinary);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
		if (type<=EDbColDateTime)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
			__ASSERT(size==(size>>2<<2));
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
		else if (type<=EDbColBinary)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
			;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
		else
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
			size=((const TDbBlob*)column->Data())->CellSize();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
		words+=(size+3)>>2;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
		}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
	return words;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
void CDbStoreTable::CopyFromRow(TUint8* aRecord,const RDbRow& aRow)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
// translate the row buffer into its persistent format in the record buffer
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
	aRecord=WriteCardinality(aRecord,OptimizedRowLength(aRow));	// internal size
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
	WRITEBITINIT(bits);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
	HDbColumnSet::TIteratorC iter=Def().Columns().Begin();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
	const TDbCell* const last=aRow.Last();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
	for (const TDbCell* column=aRow.First();column<last;++iter,column=column->Next())
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
		{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
		__ASSERT(iter<Def().Columns().End());	// columns off end
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
		TInt size=column->Length();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
		if ((iter->iAttributes&TDbCol::ENotNull)==0)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
			{	// nullable
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
			WRITEBIT(bits,aRecord,size!=0);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
			if (size==0)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
				continue;			// no data
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
			}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
		__ASSERT(size>0);	// must be non-null to reach here
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
		const TUint32* data=(const TUint32*)column->Data();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
		TDbColType type=iter->Type();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
		switch (type)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
			{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
		default:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
			__ASSERT(0);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
		case EDbColBit:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
			WRITEBIT(bits,aRecord,*data);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
			break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
		case EDbColInt8:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
		case EDbColUint8:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
			*aRecord++=TUint8(*data);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
			break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
		case EDbColInt16:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
		case EDbColUint16:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
			aRecord=Write16(aRecord,*data);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
			break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
#if defined(__DOUBLE_WORDS_SWAPPED__)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
		case EDbColReal64:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
			aRecord=Write32(aRecord,data[1]);	// write low word out first
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
			// drop through to write high word next
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
#endif
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
		case EDbColInt32:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
		case EDbColUint32:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
		case EDbColReal32:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
			aRecord=Write32(aRecord,*data);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
			break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
#if !defined(__DOUBLE_WORDS_SWAPPED__)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
		case EDbColReal64:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
#endif
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
		case EDbColInt64:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
		case EDbColDateTime:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
			aRecord=Write32(aRecord,data[0]);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
			aRecord=Write32(aRecord,data[1]);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
			break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
		case EDbColText16:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
			aRecord=CompressUnicode(aRecord,data,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
			break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
		case EDbColText8:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
		case EDbColBinary:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
			*aRecord++=TUint8(size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
			aRecord=Mem::Copy(aRecord,data,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
			break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
		case EDbColLongText8:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
		case EDbColLongText16:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
		case EDbColLongBinary:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
			{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
			const TDbBlob& blob=*reinterpret_cast<const TDbBlob*>(data);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
			size=blob.Size();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
			WRITEBIT(bits,aRecord,blob.IsInline());
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
			if (blob.IsInline())
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
				{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
				if (type==EDbColLongText16)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
					aRecord=CompressUnicode(aRecord,blob.Data(),size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
				else
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
					{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
					*aRecord++=TUint8(size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
					aRecord=Mem::Copy(aRecord,blob.Data(),size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
					}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
				}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
			else
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
				{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
				aRecord=WriteBlobId(aRecord,blob.Id());
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
				aRecord=WriteCardinality(aRecord,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
				}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
			}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
			break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
			}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
		}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
	FLUSHBITS(bits);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
const TUint8* CDbStoreTable::CopyToRowL(TDbCell* aCell,TInt aSize,const TUint8* aRec)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
// translate persistent record into the row buffer
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
	__ASSERT(aSize>0);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
	const TDbCell* const end=PtrAdd(aCell,aSize);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
	READBITINIT(bits);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
	HDbColumnSet::TIteratorC col=Def().Columns().Begin();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
	HDbColumnSet::TIteratorC const cend=Def().Columns().End();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
	for (;;)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
		{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
		TInt size=0; //null data
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
		if (col->iAttributes&TDbCol::ENotNull || READBIT(bits,aRec))	// have data
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   491
			{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   492
			if (TInt(end)-TInt(aCell)<=(TInt)sizeof(TUint32))
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   493
				return 0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   494
			size=sizeof(TUint32);	// for most types
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   495
			TDbColType type=col->Type();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   496
			switch (type)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   497
				{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   498
			default:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   499
				__ASSERT(0);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   500
			case EDbColBit:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   501
				*(TUint32*)aCell->Data()=READBIT(bits,aRec);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   502
				break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   503
			case EDbColInt8:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   504
				*(TInt32*)aCell->Data()=*(const TInt8*)aRec;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   505
				aRec+=sizeof(TInt8);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   506
				break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   507
			case EDbColUint8:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   508
				*(TUint32*)aCell->Data()=*aRec;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   509
				aRec+=sizeof(TUint8);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   510
				break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   511
			case EDbColInt16:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   512
				aRec=Read16s(aRec,(TUint32*)aCell->Data());
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   513
				break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   514
			case EDbColUint16:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   515
				aRec=Read16(aRec,(TUint32*)aCell->Data());
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   516
				break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   517
	#if defined(__DOUBLE_WORDS_SWAPPED__)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   518
			case EDbColReal64:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   519
				if (TInt(end)-TInt(aCell)<=(TInt)sizeof(TReal64))
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   520
					return 0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   521
				size=sizeof(TReal64);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   522
				aRec=Read32(aRec,(TUint32*)aCell->Data()+1);	// transfer low word first, to high address
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   523
				// drop through to transfer high word to low address!
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   524
	#endif
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   525
			case EDbColInt32:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   526
			case EDbColUint32:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   527
			case EDbColReal32:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   528
				aRec=Read32(aRec,(TUint32*)aCell->Data());
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   529
				break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   530
	#if !defined(__DOUBLE_WORDS_SWAPPED__)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   531
			case EDbColReal64:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   532
	#endif
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   533
			case EDbColInt64:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   534
			case EDbColDateTime:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   535
				if (TInt(end)-TInt(aCell)<=(TInt)sizeof(TInt64))
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   536
					return 0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   537
				size=sizeof(TInt64);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   538
				aRec=Read32(aRec,(TUint32*)aCell->Data());
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   539
				aRec=Read32(aRec,(TUint32*)aCell->Data()+1);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   540
				break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   541
			case EDbColText16:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   542
				{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   543
				TInt len;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   544
				aRec=ExpandUnicodeL(aRec,aCell->Data(),end,len);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   545
				if (!aRec)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   546
					return 0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   547
				size=len<<1;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   548
				}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   549
				break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   550
			case EDbColText8:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   551
			case EDbColBinary:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   552
				size=*aRec++;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   553
				if (TInt(end)-TInt(aCell)<TInt(size+sizeof(TUint32)))
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   554
					return 0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   555
				Mem::Copy(aCell->Data(),aRec,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   556
				aRec+=size;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   557
				break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   558
			case EDbColLongText8:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   559
			case EDbColLongText16:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   560
			case EDbColLongBinary:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   561
				if (READBIT(bits,aRec)==0)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   562
					{	// out of line Long column
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   563
					if (TInt(end)-TInt(aCell)<=TDbBlob::RefSize())
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   564
						return 0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   565
					TDbBlobId id;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   566
					aRec=ReadBlobId(aRec,id);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   567
					TInt sz;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   568
					aRec=ReadCardinality(aRec,sz);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   569
					new(aCell->Data()) TDbBlob(id,sz);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   570
					size=TDbBlob::RefSize();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   571
					}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   572
				else if (type!=EDbColLongText16)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   573
					{	// inline
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   574
					size=*aRec++;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   575
					if (TInt(end)-TInt(aCell)<TInt(TDbBlob::InlineSize(size)+sizeof(TUint32)))
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   576
						return 0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   577
					new(aCell->Data()) TDbBlob(aRec,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   578
					aRec+=size;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   579
					size=TDbBlob::InlineSize(size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   580
					}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   581
				else
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   582
					{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   583
					TDbBlob* blob=new(aCell->Data()) TDbBlob;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   584
					TInt len;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   585
					aRec=ExpandUnicodeL(aRec,blob->InlineBuffer(),end,len);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   586
					if (!aRec)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   587
						return 0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   588
					size=len<<1;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   589
					blob->SetSize(size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   590
					size=TDbBlob::InlineSize(size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   591
					}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   592
				break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   593
				}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   594
			}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   595
		aCell->SetLength(size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   596
		aCell=aCell->Next();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   597
		if (aCell==end)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   598
			return aRec;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   599
		if (++col==cend)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   600
			return 0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   601
		}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   602
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   603
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   604
void CDbStoreTable::CopyToRowL(RDbRow& aRow,const TDesC8& aRecord)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   605
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   606
// translate persistent record into the row buffer
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   607
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   608
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   609
	const TUint8* rec=aRecord.Ptr();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   610
	const TUint8* end=rec+aRecord.Length();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   611
	TInt size;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   612
	rec=ReadCardinality(rec,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   613
	size<<=2;
24
b6ab70c1385f Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   614
	
b6ab70c1385f Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   615
	//If such huge allocation is requested(KMaxTInt/2), it is highly likely the file is corrupt
b6ab70c1385f Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   616
	if((size < 0) || (size >= KMaxTInt/2))
0
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   617
		{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   618
		aRow.SetSize(0);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   619
		__LEAVE(KErrCorrupt);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   620
		}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   621
	
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   622
	if (size)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   623
		{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   624
		aRow.GrowL(size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   625
		rec=CopyToRowL(aRow.First(),size,rec);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   626
		}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   627
	if (rec)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   628
		{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   629
		do
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   630
			{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   631
			if (rec==end)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   632
				{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   633
	aRow.SetSize(size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   634
				return;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   635
				}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   636
			} while (*rec++==0);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   637
		}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   638
	aRow.SetSize(0);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   639
	__LEAVE(KErrCorrupt);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   640
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   641
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   642
TUint8* CDbStoreTable::AlterRecordL(TUint8* aWPtr,const TUint8* aRPtr,TInt aLength,TInt aInlineLimit)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   643
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   644
// Rewrite the record in the buffer by removing the data from the delete-list
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   645
// any changes are recorded in the iAltered member
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   646
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   647
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   648
	// initially assume that the length count will be the same size after alteration
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   649
	TInt lenSize=SizeOfCardinality(ReadCardinality(aRPtr));
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   650
	const TUint8* const rEnd=aRPtr+aLength;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   651
	aRPtr+=lenSize;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   652
	TUint8* wptr=aWPtr+lenSize;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   653
	TInt wRowSize=0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   654
	TInt headers=0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   655
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   656
	READBITINIT(rbits);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   657
	WRITEBITINIT(wbits);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   658
	const HDbColumnSet::TIteratorC cEnd=Def().Columns().End();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   659
	HDbColumnSet::TIteratorC col=Def().Columns().Begin();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   660
	do
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   661
		{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   662
		if (aRPtr==rEnd && !READHASBITS(rbits))
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   663
			break;	// no more data
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   664
		TUint flg=col->iFlags;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   665
		if ((flg&TDbColumnDef::EDropped)==0)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   666
			++headers;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   667
		if ((col->iAttributes&TDbCol::ENotNull)==0)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   668
			{	// nullable
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   669
			TUint notnull=READBIT(rbits,aRPtr);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   670
			if ((flg&TDbColumnDef::EDropped)==0)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   671
				WRITEBIT(wbits,wptr,notnull);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   672
			if (notnull==0)	// null data
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   673
				continue;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   674
			}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   675
		wRowSize+=headers;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   676
		headers=0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   677
		TInt size;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   678
		TDbColType type=col->Type();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   679
		switch (type)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   680
			{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   681
		default:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   682
			__ASSERT(0);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   683
		case EDbColBit:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   684
			size=READBIT(rbits,aRPtr);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   685
			if ((flg&TDbColumnDef::EDropped)==0)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   686
				{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   687
				WRITEBIT(wbits,wptr,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   688
				++wRowSize;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   689
				}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   690
			continue;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   691
		case EDbColInt8:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   692
		case EDbColUint8:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   693
		case EDbColInt16:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   694
		case EDbColUint16:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   695
		case EDbColInt32:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   696
		case EDbColUint32:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   697
		case EDbColReal32:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   698
		case EDbColReal64:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   699
		case EDbColInt64:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   700
		case EDbColDateTime:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   701
			size=TRecordSize::FixedFieldSize(type);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   702
			if ((flg&TDbColumnDef::EDropped)==0)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   703
				{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   704
				wptr=Mem::Copy(wptr,aRPtr,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   705
				wRowSize+=(size+3)>>2;	// # words
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   706
				}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   707
			break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   708
		case EDbColText8:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   709
		case EDbColBinary:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   710
			size=*aRPtr++;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   711
			if ((flg&(TDbColumnDef::EChangedType|TDbColumnDef::EDropped))==0)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   712
				{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   713
				wptr=Mem::Copy(wptr,aRPtr-1,size+1);	// no change, copy the column
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   714
				wRowSize+=(size+3)>>2;	// # words
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   715
				}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   716
			else if (flg&TDbColumnDef::EChangedType)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   717
				goto alterBlob8;	// type change, into a LongColumn
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   718
			else
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   719
				__ASSERT(flg&TDbColumnDef::EDropped);	// drop the column
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   720
			break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   721
		case EDbColText16:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   722
			{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   723
			TInt sz;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   724
			aRPtr=ReadCardinality(aRPtr,sz);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   725
			size=sz;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   726
			if ((flg&(TDbColumnDef::EChangedType|TDbColumnDef::EDropped))==0)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   727
				{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   728
				wptr=WriteCardinality(wptr,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   729
				wptr=Mem::Copy(wptr,aRPtr,size);	// no change, copy the column
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   730
				wRowSize+=(SizeOfExpandedUnicodeL(aRPtr,size)+3)>>2;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   731
				}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   732
			else if (flg&TDbColumnDef::EChangedType)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   733
				goto alterBlob16;	// type change, into a LongColumn
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   734
			else
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   735
				__ASSERT(flg&TDbColumnDef::EDropped);	// drop the column
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   736
			}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   737
			break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   738
		case EDbColLongText8:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   739
		case EDbColLongBinary:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   740
		case EDbColLongText16:
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   741
			if (!READBIT(rbits,aRPtr))
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   742
				{	// out-of-line
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   743
				TDbBlobId id;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   744
				aRPtr=ReadBlobId(aRPtr,id);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   745
				TInt sz;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   746
				aRPtr=ReadCardinality(aRPtr,sz);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   747
				if (flg&TDbColumnDef::EDropped)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   748
					BlobsL()->DeleteL(id);	// delete the stream
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   749
				else
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   750
					{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   751
					WRITEZEROBIT(wbits,wptr);			// out-of-line
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   752
					wptr=WriteBlobId(wptr,id);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   753
					wptr=WriteCardinality(wptr,sz);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   754
					wRowSize+=TDbBlob::RefSize()>>2;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   755
					}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   756
				size=0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   757
				}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   758
			else if (type!=EDbColLongText16)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   759
				{	// currently inline
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   760
				size=*aRPtr++;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   761
				if (flg&TDbColumnDef::EDropped)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   762
					break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   763
				// write long-column data, check inline status
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   764
alterBlob8:		WRITEBIT(wbits,wptr,size<=aInlineLimit);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   765
				if (size<=aInlineLimit)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   766
					{	// inlined
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   767
					*wptr++=TUint8(size);				// blob size
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   768
					wptr=Mem::Copy(wptr,aRPtr,size);	// blob data
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   769
					wRowSize+=(TDbBlob::InlineSize(size)+3)>>2;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   770
					}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   771
				else
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   772
					{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   773
					TDbBlobId id=BlobsL()->CreateL(type,aRPtr,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   774
					wptr=WriteBlobId(wptr,id);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   775
					wptr=WriteCardinality(wptr,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   776
					wRowSize+=TDbBlob::RefSize()>>2;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   777
					}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   778
				}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   779
			else
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   780
				{	// currently inline
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   781
				TInt sz;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   782
				aRPtr=ReadCardinality(aRPtr,sz);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   783
				size=sz;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   784
				if (flg&TDbColumnDef::EDropped)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   785
					break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   786
				// write long-column data, check inline status
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   787
alterBlob16:	TInt len=SizeOfExpandedUnicodeL(aRPtr,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   788
				WRITEBIT(wbits,wptr,len<=aInlineLimit);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   789
				if (len<=aInlineLimit)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   790
					{	// inlined
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   791
					wptr=WriteCardinality(wptr,size);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   792
					wptr=Mem::Copy(wptr,aRPtr,size);	// blob data
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   793
					wRowSize+=(TDbBlob::InlineSize(len)+3)>>2;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   794
					}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   795
				else
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   796
					{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   797
					TDbBlobId id=BlobsL()->CreateL(EDbColLongText8,aRPtr,size);	// no unicode compressor!
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   798
					wptr=WriteBlobId(wptr,id);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   799
					wptr=WriteCardinality(wptr,len);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   800
					wRowSize+=TDbBlob::RefSize()>>2;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   801
					}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   802
				}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   803
			break;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   804
			}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   805
		aRPtr+=size;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   806
		} while (++col<cEnd);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   807
	FLUSHBITS(wbits);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   808
	TInt lsz=SizeOfCardinality(wRowSize);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   809
	if (lenSize!=lsz)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   810
		wptr=Mem::Copy(aWPtr+lsz,aWPtr+lenSize,wptr-(aWPtr+lenSize));
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   811
	WriteCardinality(aWPtr,wRowSize);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   812
	return wptr;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   813
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   814
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   815
TInt CDbStoreTable::IndexSpanL(const CDbTableIndexDef& aIndex,TUint aInclusion,const TDbLookupKey* aLower,const TDbLookupKey* aUpper)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   816
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   817
// Guess the size of the index set contained in the given restriction
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   818
// First check the cached values in the defintion, and only load the index if necessary
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   819
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   820
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   821
	const TDbStoreIndexStats& stats=static_cast<const CDbStoreIndexDef&>(aIndex).iStats;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   822
	if (!stats.IsValid())
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   823
		IndexL(aIndex);				// ensure that the index is loaded
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   824
	return stats.Span(aInclusion,aLower,aUpper,TTextOps::Ops(aIndex.Key().Comparison()));
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   825
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   826
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   827
// Class CDbStoreTable::CDiscarder
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   828
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   829
CDbStoreTable::CDiscarder::CDiscarder()
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   830
	{}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   831
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   832
CDbStoreTable::CDiscarder::~CDiscarder()
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   833
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   834
	if (iTable)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   835
		iTable->Close();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   836
	iRow.Close();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   837
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   838
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   839
TInt CDbStoreTable::CDiscarder::OpenL(CDbStoreTable* aTable)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   840
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   841
	__ASSERT(!iTable);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   842
	iTable=aTable;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   843
	iRecords=&aTable->StoreRecordsL();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   844
	iCluster=iRecords->Head();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   845
	return iRecords->Count()+1;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   846
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   847
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   848
TInt CDbStoreTable::CDiscarder::StepL(TInt aStep)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   849
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   850
	__ASSERT(iTable);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   851
	TInt limit=iTable->Def().Columns().HasLongColumns() ? EBlobDiscardClusters : EDiscardClusters;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   852
	for (TInt inc=0;inc<limit;++inc)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   853
		{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   854
		if (iCluster==KNullClusterId)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   855
			{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   856
			iRecords->DestroyL();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   857
			return 0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   858
			}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   859
		if (limit==EBlobDiscardClusters)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   860
			iRecords->AlterL(iCluster,*this);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   861
		aStep-=iRecords->DiscardL(iCluster);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   862
		}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   863
	return Max(aStep,1);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   864
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   865
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   866
TUint8* CDbStoreTable::CDiscarder::AlterRecordL(TUint8* aWPtr,const TUint8* aRPtr,TInt aLength)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   867
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   868
// Scan for and discard all known BLOBs
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   869
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   870
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   871
	iTable->CopyToRowL(iRow,TPtrC8(aRPtr,aLength));
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   872
	iTable->DiscardBlobsL(iRow);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   873
	return aWPtr;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   874
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   875
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   876
// class CDbStoreTable::CAlter
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   877
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   878
CDbStoreTable::CAlter::CAlter()
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   879
	{}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   880
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   881
CDbStoreTable::CAlter::~CAlter()
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   882
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   883
	if (iTable)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   884
		iTable->Close();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   885
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   886
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   887
void CDbStoreTable::CAlter::OpenL(CDbStoreTable* aTable,const HDbColumnSet& aNewSet)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   888
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   889
// Prepare for alteration of the table data
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   890
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   891
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   892
	__ASSERT(!iTable);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   893
	iTable=aTable;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   894
	iInlineLimit=TRecordSize::InlineLimit(aNewSet);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   895
	iRecords=&iTable->StoreRecordsL();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   896
	iCluster=iRecords->Head();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   897
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   898
// Calculate the maximum possible expansion, based on the changes to the column set
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   899
// Currently the only alloed change which affects this is Text->LongText type changes
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   900
// these all add a single bit
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   901
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   902
	TInt expand=0;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   903
	const HDbColumnSet& columns=iTable->Def().Columns();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   904
	const HDbColumnSet::TIteratorC end=columns.End();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   905
	HDbColumnSet::TIteratorC col=columns.Begin();
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   906
	do
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   907
		{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   908
		if (col->iFlags&TDbColumnDef::EChangedType)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   909
			{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   910
			__ASSERT(col->iType>=EDbColText8&&col->iType<=EDbColBinary);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   911
			++expand;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   912
			}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   913
		} while (++col<end);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   914
	iExpansion=(expand+7)>>3;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   915
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   916
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   917
TInt CDbStoreTable::CAlter::StepL(TInt aStep)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   918
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   919
// Do some steps to alter the table data
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   920
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   921
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   922
	__ASSERT(iTable);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   923
	iStep=aStep;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   924
	iCluster=iRecords->AlterL(iCluster,*this);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   925
	return iCluster==KNullClusterId ? 0 : Max(iStep,1);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   926
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   927
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   928
TUint8* CDbStoreTable::CAlter::AlterRecordL(TUint8* aWPtr,const TUint8* aRPtr,TInt aLength)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   929
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   930
// providing for CClusterCache::MAlter
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   931
// re-write the record
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   932
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   933
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   934
	--iStep;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   935
	return iTable->AlterRecordL(aWPtr,aRPtr,aLength,iInlineLimit);
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   936
	}
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   937
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   938
TInt CDbStoreTable::CAlter::RecordExpansion(const TUint8*,TInt)
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   939
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   940
// providing for CClusterCache::MAlter
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   941
// just return the maximum possible expansion, rather than a record-specific one
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   942
//
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   943
	{
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   944
	return iExpansion;
08ec8eefde2f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   945
	}