diff -r 000000000000 -r 83f4b4db085c toolsandutils/e32tools/e32uid/e32uid.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/toolsandutils/e32tools/e32uid/e32uid.cpp Tue Feb 02 01:39:43 2010 +0200 @@ -0,0 +1,245 @@ +// Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies). +// All rights reserved. +// This component and the accompanying materials are made available +// under the terms of "Eclipse Public License v1.0" +// which accompanies this distribution, and is available +// at the URL "http://www.eclipse.org/legal/epl-v10.html". +// +// Initial Contributors: +// Nokia Corporation - initial contribution. +// +// Contributors: +// +// Description: +// + +typedef unsigned char BYTE; // TUint8 +typedef unsigned short WORD; // TUint16 +typedef unsigned int UINT; // TUint + +#include +#include +#include +#include "e32uid.h" + +const UINT crcTab[256] = + { + 0x0000,0x1021,0x2042,0x3063,0x4084,0x50a5,0x60c6,0x70e7,0x8108,0x9129,0xa14a, + 0xb16b,0xc18c,0xd1ad,0xe1ce,0xf1ef,0x1231,0x0210,0x3273,0x2252,0x52b5,0x4294, + 0x72f7,0x62d6,0x9339,0x8318,0xb37b,0xa35a,0xd3bd,0xc39c,0xf3ff,0xe3de,0x2462, + 0x3443,0x0420,0x1401,0x64e6,0x74c7,0x44a4,0x5485,0xa56a,0xb54b,0x8528,0x9509, + 0xe5ee,0xf5cf,0xc5ac,0xd58d,0x3653,0x2672,0x1611,0x0630,0x76d7,0x66f6,0x5695, + 0x46b4,0xb75b,0xa77a,0x9719,0x8738,0xf7df,0xe7fe,0xd79d,0xc7bc,0x48c4,0x58e5, + 0x6886,0x78a7,0x0840,0x1861,0x2802,0x3823,0xc9cc,0xd9ed,0xe98e,0xf9af,0x8948, + 0x9969,0xa90a,0xb92b,0x5af5,0x4ad4,0x7ab7,0x6a96,0x1a71,0x0a50,0x3a33,0x2a12, + 0xdbfd,0xcbdc,0xfbbf,0xeb9e,0x9b79,0x8b58,0xbb3b,0xab1a,0x6ca6,0x7c87,0x4ce4, + 0x5cc5,0x2c22,0x3c03,0x0c60,0x1c41,0xedae,0xfd8f,0xcdec,0xddcd,0xad2a,0xbd0b, + 0x8d68,0x9d49,0x7e97,0x6eb6,0x5ed5,0x4ef4,0x3e13,0x2e32,0x1e51,0x0e70,0xff9f, + 0xefbe,0xdfdd,0xcffc,0xbf1b,0xaf3a,0x9f59,0x8f78,0x9188,0x81a9,0xb1ca,0xa1eb, + 0xd10c,0xc12d,0xf14e,0xe16f,0x1080,0x00a1,0x30c2,0x20e3,0x5004,0x4025,0x7046, + 0x6067,0x83b9,0x9398,0xa3fb,0xb3da,0xc33d,0xd31c,0xe37f,0xf35e,0x02b1,0x1290, + 0x22f3,0x32d2,0x4235,0x5214,0x6277,0x7256,0xb5ea,0xa5cb,0x95a8,0x8589,0xf56e, + 0xe54f,0xd52c,0xc50d,0x34e2,0x24c3,0x14a0,0x0481,0x7466,0x6447,0x5424,0x4405, + 0xa7db,0xb7fa,0x8799,0x97b8,0xe75f,0xf77e,0xc71d,0xd73c,0x26d3,0x36f2,0x0691, + 0x16b0,0x6657,0x7676,0x4615,0x5634,0xd94c,0xc96d,0xf90e,0xe92f,0x99c8,0x89e9, + 0xb98a,0xa9ab,0x5844,0x4865,0x7806,0x6827,0x18c0,0x08e1,0x3882,0x28a3,0xcb7d, + 0xdb5c,0xeb3f,0xfb1e,0x8bf9,0x9bd8,0xabbb,0xbb9a,0x4a75,0x5a54,0x6a37,0x7a16, + 0x0af1,0x1ad0,0x2ab3,0x3a92,0xfd2e,0xed0f,0xdd6c,0xcd4d,0xbdaa,0xad8b,0x9de8, + 0x8dc9,0x7c26,0x6c07,0x5c64,0x4c45,0x3ca2,0x2c83,0x1ce0,0x0cc1,0xef1f,0xff3e, + 0xcf5d,0xdf7c,0xaf9b,0xbfba,0x8fd9,0x9ff8,0x6e17,0x7e36,0x4e55,0x5e74,0x2e93, + 0x3eb2,0x0ed1,0x1ef0 + }; + +void Crc(WORD& aCrc,const void* aPtr,int aLength) +// +// Perform a CCITT CRC checksum. +// + { + + const BYTE* pB=(const BYTE*)aPtr; + const BYTE* pE=pB+aLength; + UINT crc=aCrc; + while (pB>8)^*pB++)&0xff]; + aCrc=(WORD)crc; + } + +UINT checkSum(const void* aPtr) +// +// Checksum every other byte +// + { + + const BYTE* pB=(const BYTE*)aPtr; + const BYTE* pE=pB+(KMaxCheckedUid*sizeof(TUid)); + BYTE buf[(KMaxCheckedUid*sizeof(TUid))>>1]; + BYTE* pT=(&buf[0]); + while (pB>1); + return(crc); + } + +int TUid::operator==(const TUid& aUid) const +// +// Compare UID's for equality +// + { + + return(iUid==aUid.iUid); + } + +int TUid::operator!=(const TUid& aUid) const +// +// Compare UID's for equality +// + { + + return(iUid!=aUid.iUid); + } + +TUidType::TUidType() +// +// Constructor +// + { + + memset(this,0,sizeof(TUidType)); + } + +TUidType::TUidType(TUid aUid1) +// +// Constructor +// + { + + + memset(this,0,sizeof(TUidType)); + iUid[0]=aUid1; + } + +TUidType::TUidType(TUid aUid1,TUid aUid2) +// +// Constructor +// + { + + iUid[0]=aUid1; + iUid[1]=aUid2; + iUid[2]=KNullUid; + } + +TUidType::TUidType(TUid aUid1,TUid aUid2,TUid aUid3) +// +// Constructor +// + { + + + iUid[0]=aUid1; + iUid[1]=aUid2; + iUid[2]=aUid3; + } + +int TUidType::operator==(const TUidType& aUidType) const +// +// TRUE if equal. +// + { + + return(iUid[0]==aUidType.iUid[0] && + iUid[1]==aUidType.iUid[1] && + iUid[2]==aUidType.iUid[2]); + } + +int TUidType::operator!=(const TUidType& aUidType) const +// +// TRUE if not equal. +// + { + + + return(!(*this==aUidType)); + } + +const TUid& TUidType::operator[](int anIndex) const +// +// Array operator. +// + { + + return(iUid[anIndex]); + } + +TUid TUidType::MostDerived() const +// +// Return the most derived type +// + { + + if (iUid[2]!=KNullUid) + return(iUid[2]); + if (iUid[1]!=KNullUid) + return(iUid[1]); + return(iUid[0]); + } + +int TUidType::IsPresent(TUid aUid) const +// +// TRUE if aUid is present as any type. +// + { + + return(iUid[0]==aUid || iUid[1]==aUid || iUid[2]==aUid); + } + +int TUidType::IsValid() const +// +// TRUE if one of the type is not NULL. +// + { + + return(MostDerived()!=KNullUid); + } + +TCheckedUid::TCheckedUid() +// +// Constructor +// + { + + memset(this,0,sizeof(TCheckedUid)); + } + +TCheckedUid::TCheckedUid(const TUidType& aUidType) +// +// Constructor +// + { + + Set(aUidType); + } + +void TCheckedUid::Set(const TUidType& aUidType) +// +// Set from a aUidType +// + { + + iType=aUidType; + iCheck=Check(); + } + +UINT TCheckedUid::Check() const +// +// Return the checksum of the UIDs +// + { + + return((checkSum(((BYTE*)this)+1)<<16)|checkSum((BYTE*)this)); + } +