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3rdparty: MultiEmulator: remove unused code

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This commit is contained in:
Alibek Omarov 2024-10-21 06:30:53 +03:00
parent 434359ea01
commit 6a1f502d25
4 changed files with 1 additions and 209 deletions
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128
3rdparty/MultiEmulator/src/DoubleBuffering.cpp vendored
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@ -1,128 +0,0 @@
//DoubleBuffering.cpp Source File
#include "DoubleBuffering.h"
#include <cassert>
#include <exception>
#include <string.h>
using namespace std;
CDoubleBuffering::CDoubleBuffering(ifstream& in, char* pcBuff, int iSize, int iDataLen) : m_rin(in),
m_iDataLen(iDataLen), m_bEOF(false), m_iSize(iSize), m_iSize2(iSize >> 1), m_pcBuff(pcBuff)
{
//m_iSize should be even
if(m_iSize%2 != 0)
throw runtime_error("CDoubleBuffering: m_iSize should be Even Number!");
//Check file
if(!in.is_open() || in.bad())
throw runtime_error("CDoubleBuffering: Referenced File not Opened or in Bad State!");
//Check construction data
if(m_iDataLen<1 || m_iSize2<m_iDataLen)
throw runtime_error("CDoubleBuffering: Illegal Construction Data!");
in.read(m_pcBuff, m_iSize2);
m_iEnd = m_rin.gcount();
m_iCurPos = 0;
m_iBuf = 0;
}
int CDoubleBuffering::GetData(char* pszDataBuf, int iDataLen)
{
if(-1 == iDataLen)
iDataLen = m_iDataLen;
if(iDataLen<1 || m_iSize2<iDataLen)
throw runtime_error("CDoubleBuffering::GetData(): Illegal iDataLen!");
if(true == m_bEOF)
return 0;
//Estimate the next position
int iCurPos = m_iCurPos + iDataLen;
if(0 == m_iBuf) //First Buffer
{
if(iCurPos >= m_iEnd)
{
//Read the next buffer
if(m_rin.eof())
{
m_bEOF = true;
//Take everything remained
int iRead = m_iEnd-m_iCurPos;
memcpy(pszDataBuf, m_pcBuff+m_iCurPos, iRead);
return iRead;
}
else
{
m_rin.read(m_pcBuff+m_iEnd, m_iSize2);
m_iEnd += m_rin.gcount();
if(iCurPos > m_iEnd) //Still greater, then EOF attained
{
assert(m_rin.eof());
m_bEOF = true;
//Take everything remained
int iRead = m_iEnd-m_iCurPos;
memcpy(pszDataBuf, m_pcBuff+m_iCurPos, iRead);
return iRead;
}
else
{
memcpy(pszDataBuf, m_pcBuff+m_iCurPos, iDataLen);
m_iCurPos = iCurPos;
assert(m_iCurPos >= m_iSize2);
m_iBuf = 1;
return iDataLen;
}
}
}
else
{
memcpy(pszDataBuf, m_pcBuff+m_iCurPos, iDataLen);
m_iCurPos = iCurPos;
return iDataLen;
}
}
else //1 == m_iBuf, Second Buffer
{
if(iCurPos >= m_iEnd)
{
//Read the next buffer
if(m_rin.eof())
{
m_bEOF = true;
//Take everything remained
int iRead = m_iEnd-m_iCurPos;
memcpy(pszDataBuf, m_pcBuff+m_iCurPos, iRead);
return iRead;
}
else
{
m_rin.read(m_pcBuff, m_iSize2);
m_iEnd = m_rin.gcount();
iCurPos %= m_iSize;
if(iCurPos > m_iEnd) //Still greater, then EOF attained
{
assert(m_rin.eof());
m_bEOF = true;
//Take everything remained
int iRead = m_iSize-m_iCurPos;
memcpy(pszDataBuf, m_pcBuff+m_iCurPos, iRead);
memcpy(pszDataBuf+iRead, m_pcBuff, m_iEnd);
return iRead + m_iEnd;
}
else
{
int iRead = m_iSize-m_iCurPos;
memcpy(pszDataBuf, m_pcBuff+m_iCurPos, iRead);
memcpy(pszDataBuf+iRead, m_pcBuff, iDataLen-iRead);
m_iCurPos = iCurPos;
assert(m_iCurPos < m_iSize2);
m_iBuf = 0;
return iDataLen;
}
}
}
else
{
memcpy(pszDataBuf, m_pcBuff+m_iCurPos, iDataLen);
m_iCurPos = iCurPos;
return iDataLen;
}
}
}

40
3rdparty/MultiEmulator/src/DoubleBuffering.h vendored
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@ -1,40 +0,0 @@
//DoubleBuffering.h Header File
#ifndef __DOUBLEBUFFERING_H__
#define __DOUBLEBUFFERING_H__
//Typical DISCLAIMER:
//The code in this project is Copyright (C) 2003 by George Anescu. You have the right to
//use and distribute the code in any way you see fit as long as this paragraph is included
//with the distribution. No warranties or claims are made as to the validity of the
//information and code contained herein, so use it at your own risk.
#include <fstream>
using namespace std;
class CDoubleBuffering
{
public:
//Constructor
CDoubleBuffering(ifstream& in, char* pcBuff, int iSize, int iDataLen);
//Get Next Data Buffer
int GetData(char* pszDataBuf, int iDataLen=-1);
private:
ifstream& m_rin;
int m_iSize;
int m_iSize2; //m_iSize/2
int m_iDataLen;
//Current Position
int m_iCurPos;
//End Position
int m_iEnd;
//Which Buffer
int m_iBuf;
char* m_pcBuff;
//EOF attained
bool m_bEOF;
};
#endif //__DOUBLEBUFFERING_H__

38
3rdparty/MultiEmulator/src/MessageDigest.cpp vendored
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@ -1,38 +0,0 @@
//MessageDigest.cpp
#include "MessageDigest.h"
#include "DoubleBuffering.h"
#include <exception>
#include <fstream>
#include <strstream>
using namespace std;
//Digesting a Full File
void IMessageDigest::DigestFile(string const& rostrFileIn, char* pcDigest)
{
//Is the User's responsability to ensure that pcDigest is appropriately allocated
//Open Input File
ifstream in(rostrFileIn.c_str(), ios::binary);
if(!in)
{
ostrstream ostr;
ostr << "FileDigest ERROR: in IMessageDigest::DigestFile(): Cannot open File " << rostrFileIn << "!" << ends;
string ostrMsg = ostr.str();
ostr.freeze(false);
throw runtime_error(ostrMsg);
}
//Resetting first
Reset();
//Reading from file
char szLargeBuff[BUFF_LEN+1] = {0};
char szBuff[DATA_LEN+1] = {0};
CDoubleBuffering oDoubleBuffering(in, szLargeBuff, BUFF_LEN, DATA_LEN);
int iRead;
while((iRead=oDoubleBuffering.GetData(szBuff)) > 0)
AddData(szBuff, iRead);
in.close();
//Final Step
FinalDigest(pcDigest);
}

4
3rdparty/MultiEmulator/src/MessageDigest.h vendored
View file

@ -28,8 +28,6 @@ public:
virtual void FinalDigest(char* pcDigest) = 0; virtual void FinalDigest(char* pcDigest) = 0;
//Reset current operation in order to prepare for a new one //Reset current operation in order to prepare for a new one
virtual void Reset() = 0; virtual void Reset() = 0;
//Digesting a Full File
void DigestFile(string const& rostrFileIn, char* pcDigest);
protected: protected:
enum { BLOCKSIZE=64 }; enum { BLOCKSIZE=64 };
@ -44,4 +42,4 @@ private:
}; };
#endif // __MESSAGEDIGEST_H__ #endif // __MESSAGEDIGEST_H__