105 lines
2.4 KiB
C++
105 lines
2.4 KiB
C++
|
/*
|
||
|
|
* HLLib
|
||
|
|
* Copyright (C) 2006-2010 Ryan Gregg
|
||
|
|
|
||
|
|
* This library is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 2.1 of the License, or (at your option) any later
|
||
|
|
* version.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "HLLib.h"
|
||
|
|
#include "MemoryMapping.h"
|
||
|
|
|
||
|
|
using namespace HLLib;
|
||
|
|
using namespace HLLib::Mapping;
|
||
|
|
|
||
|
|
CMemoryMapping::CMemoryMapping(hlVoid *lpData, hlULongLong uiBufferSize) : bOpened(hlFalse), uiMode(HL_MODE_INVALID), lpData(lpData), uiBufferSize(uiBufferSize)
|
||
|
|
{
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
CMemoryMapping::~CMemoryMapping()
|
||
|
|
{
|
||
|
|
this->Close();
|
||
|
|
}
|
||
|
|
|
||
|
|
HLMappingType CMemoryMapping::GetType() const
|
||
|
|
{
|
||
|
|
return HL_MAPPING_MEMORY;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
const hlVoid *CMemoryMapping::GetBuffer() const
|
||
|
|
{
|
||
|
|
return this->lpData;
|
||
|
|
}
|
||
|
|
|
||
|
|
hlULongLong CMemoryMapping::GetBufferSize() const
|
||
|
|
{
|
||
|
|
return this->uiBufferSize;
|
||
|
|
}
|
||
|
|
|
||
|
|
hlBool CMemoryMapping::GetOpened() const
|
||
|
|
{
|
||
|
|
return this->bOpened;
|
||
|
|
}
|
||
|
|
|
||
|
|
hlUInt CMemoryMapping::GetMode() const
|
||
|
|
{
|
||
|
|
return this->uiMode;
|
||
|
|
}
|
||
|
|
|
||
|
|
hlBool CMemoryMapping::OpenInternal(hlUInt uiMode)
|
||
|
|
{
|
||
|
|
assert(!this->GetOpened());
|
||
|
|
|
||
|
|
if(this->uiBufferSize != 0 && this->lpData == 0)
|
||
|
|
{
|
||
|
|
LastError.SetErrorMessage("Memory stream is null.");
|
||
|
|
return hlFalse;
|
||
|
|
}
|
||
|
|
|
||
|
|
if((uiMode & HL_MODE_READ) == 0 || (uiMode & HL_MODE_WRITE) != 0)
|
||
|
|
{
|
||
|
|
LastError.SetErrorMessageFormated("Invalid open mode (%#.8x).", uiMode);
|
||
|
|
return hlFalse;
|
||
|
|
}
|
||
|
|
|
||
|
|
this->bOpened = hlTrue;
|
||
|
|
this->uiMode = uiMode;
|
||
|
|
|
||
|
|
return hlTrue;
|
||
|
|
}
|
||
|
|
|
||
|
|
hlVoid CMemoryMapping::CloseInternal()
|
||
|
|
{
|
||
|
|
this->bOpened = hlFalse;
|
||
|
|
this->uiMode = HL_MODE_INVALID;
|
||
|
|
}
|
||
|
|
|
||
|
|
hlULongLong CMemoryMapping::GetMappingSize() const
|
||
|
|
{
|
||
|
|
return this->bOpened ? this->uiBufferSize : 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
hlBool CMemoryMapping::MapInternal(CView *&pView, hlULongLong uiOffset, hlULongLong uiLength)
|
||
|
|
{
|
||
|
|
assert(this->GetOpened());
|
||
|
|
|
||
|
|
if(uiOffset + uiLength > this->uiBufferSize)
|
||
|
|
{
|
||
|
|
#ifdef _WIN32
|
||
|
|
LastError.SetErrorMessageFormated("Requested view (%I64u, %I64u) does not fit inside mapping, (%I64u, %I64u).", uiOffset, uiLength, 0, this->uiBufferSize);
|
||
|
|
#else
|
||
|
|
LastError.SetErrorMessageFormated("Requested view (%llu, %llu) does not fit inside mapping, (%llu, %llu).", uiOffset, uiLength, 0, this->uiBufferSize);
|
||
|
|
#endif
|
||
|
|
return hlFalse;
|
||
|
|
}
|
||
|
|
|
||
|
|
pView = new CView(this, this->lpData, 0, this->uiBufferSize, uiOffset, uiLength);
|
||
|
|
|
||
|
|
return hlTrue;
|
||
|
|
}
|