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FileCreators.h
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FileCreators.h
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#pragma once
#include <string>
#include <cassert>
class FileCreator
{
public:
FileCreator(std::wstring strFile, size_t sizeInBytes, size_t blockSizeInBytes)
: m_strFile(std::move(strFile))
, m_sizeInBytes(sizeInBytes)
, m_blockSizeInBytes(blockSizeInBytes)
{
assert(m_sizeInBytes % m_blockSizeInBytes == 0 && "size must be multiple of blockSize");
}
// buf and block size to generate data
using TGenFunc = void(*)(char*, size_t);
virtual bool Create(TGenFunc func) = 0;
protected:
const std::wstring m_strFile;
const size_t m_sizeInBytes;
const size_t m_blockSizeInBytes;
};
// creator using STDIO,
class StdioFileCreator : public FileCreator
{
public:
using FileCreator::FileCreator; // inheriting constructor
virtual bool Create(TGenFunc func) override;
};
// transformer using STD library from C++, streams,
class IoStreamFileCreator : public FileCreator
{
public:
using FileCreator::FileCreator; // inheriting constructor
virtual bool Create(TGenFunc func) override;
};
// transformer using Windows Api, standard
class WinFileCreator : public FileCreator
{
public:
using FileCreator::FileCreator; // inheriting constructor
virtual bool Create(TGenFunc func) override;
};
// transformer using Windows Api, memory mapped files
class MappedWinFileCreator : public FileCreator
{
public:
using FileCreator::FileCreator; // inheriting constructor
virtual bool Create(TGenFunc func) override;
};