FileStreamImpl.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "trio/streams/FileStream.h"
#include "trio/streams/StreamStatus.h"
#include "trio/types/Aliases.h"
#include "trio/utils/NativeString.h"
 
#include <pma/TypeDefs.h>
 
#ifdef _MSC_VER
    #pragma warning(push)
    #pragma warning(disable : 4365 4987)
#endif
#include <cstddef>
#include <cstdint>
#include <fstream>
#include <ios>
#ifdef _MSC_VER
    #pragma warning(pop)
#endif
 
namespace trio {
 
class FileStreamImpl : public FileStream {
    public:
        FileStreamImpl(const char* path_, AccessMode accessMode_, OpenMode openMode_, MemoryResource* memRes_);
 
        void open() override;
        void close() override;
        std::uint64_t tell() override;
        void seek(std::uint64_t position) override;
        std::uint64_t size() override;
        std::size_t read(char* destination, std::size_t size) override;
        std::size_t read(Writable* destination, std::size_t size) override;
        std::size_t write(const char* source, std::size_t size) override;
        std::size_t write(Readable* source, std::size_t size) override;
 
        MemoryResource* getMemoryResource();
 
    private:
        std::fstream file;
        NativeString filePath;
        AccessMode fileAccessMode;
        OpenMode fileOpenMode;
        std::uint64_t fileSize;
        MemoryResource* memRes;
        StreamStatus status;
};
 
}  // namespace trio