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#pragma once
#include "FileStream.h"
namespace Death { namespace IO {
//###==##====#=====--==~--~=~- --- -- - - - -
/**
@brief Provides only specified portion of the specified seekable input stream
*/
class BoundedFileStream : public Stream
{
public:
BoundedFileStream(Containers::StringView path, std::uint64_t offset, std::uint32_t size, std::int32_t bufferSize = FileStream::DefaultBufferSize);
BoundedFileStream(Containers::String&& path, std::uint64_t offset, std::uint32_t size, std::int32_t bufferSize = FileStream::DefaultBufferSize);
BoundedFileStream(const BoundedFileStream&) = delete;
BoundedFileStream& operator=(const BoundedFileStream&) = delete;
void Dispose() override;
std::int64_t Seek(std::int64_t offset, SeekOrigin origin) override;
std::int64_t GetPosition() const override;
std::int64_t Read(void* destination, std::int64_t bytesToRead) override;
std::int64_t Write(const void* source, std::int64_t bytesToWrite) override;
bool Flush() override;
bool IsValid() override;
std::int64_t GetSize() const override;
std::int64_t SetSize(std::int64_t size) override;
private:
FileStream _underlyingStream;
std::uint64_t _offset;
std::uint64_t _size;
};
}}
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