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#ifndef __ASURA_ENGINE_FILE_H__
#define __ASURA_ENGINE_FILE_H__
#include "physfs/physfs.h"
#include "../scripting/portable.hpp"
#include "../threading/thread.h"
#include "file_data.h"
namespace AsuraEngine
{
namespace IO
{
///
/// ��������ʽ���ļ�������ָ����д��㡢��С��������ʹ������ȡʱʹ�ñ��࣬����ʹ��Filesystem.read()ֱ�Ӷ�ȡ�ļ�ȫ��
/// ���ݣ�������һ��FileData����
///
class File ASURA_FINAL
: public AEScripting::Portable<File>
{
public:
LUAX_DECL_FACTORY(File);
///
/// �ļ���дģʽ
///
enum FileMode
{
FILE_MODE_CLOSED,
FILE_MODE_READ,
FILE_MODE_WRITE,
FILE_MODE_APPEND,
};
///
/// �ļ�д��ʱ��������Ϊ
///
enum BufferMode
{
BUFFER_MODE_NONE, ///< ��ʹ�û��壬����д���ļ�
BUFFER_MODE_LINE, ///< �л��壬�������з����ߴﵽ��������Сʱд���ļ�
BUFFER_MODE_FULL, ///< ��ȫ���壬��������ʱд���ļ�
};
File(const std::string& filename);
~File();
bool Open(FileMode mode);
bool Close();
bool IsOpen();
FileMode GetMode();
size_t GetSize();
///
/// ��ȡ��data buffer������ض��������
///
size_t Read(ASURA_OUT DataBuffer* dst, size_t length);
size_t ReadAll(ASURA_OUT DataBuffer* dst);
size_t ReadAsync(ASURA_OUT DataBuffer* dst);
///
/// �Ƿ�������ļ���β
///
bool IsEOF();
///
/// ��data buffer�е�����д�룬�������Ƿ�ɹ�
///
bool Write(ASURA_REF DataBuffer* src);
///
/// �첽д�ļ�����д�ļ�task����thread�Ķ��С�
///
bool WriteAsync(ASURA_REF DataBuffer* src, AEThreading::Thread* thread);
///
/// ��������˻��壬ǿ����ջ�������д���ļ���
///
bool Flush();
///
/// ���ص�ǰ��дλ��
///
size_t Tell();
///
/// ������Ӧλ��
///
bool Seek(size_t pos);
///
/// ���û�������С��ģʽ
///
bool SetBuffer(BufferMode mode, size_t size);
///
/// ��ȡ��������С��ģʽ
///
BufferMode GetBuffer(ASURA_OUT size_t& size);
const std::string& GetFileName();
const std::string& GetName();
const std::string& GetExtension();
private:
PHYSFS_File* mFileHandle; ///< physfs �ļ�
std::string mFileName; ///< �ļ���
std::string mExtension; ///< �����������չ��
std::string mName; ///< �����������չ�����ļ���
FileMode mMode; ///< �ļ���ģʽ
BufferMode mBufferMode; ///< д�뻺����ģʽ
size_t mBufferSize; ///< д�뻺������С
LUAX_DECL_ENUM(FileMode);
LUAX_DECL_ENUM(BufferMode);
LUAX_DECL_METHOD(_New);
LUAX_DECL_METHOD(_Open);
LUAX_DECL_METHOD(_Close);
LUAX_DECL_METHOD(_IsOpen);
LUAX_DECL_METHOD(_GetMode);
LUAX_DECL_METHOD(_GetSize);
LUAX_DECL_METHOD(_Read);
LUAX_DECL_METHOD(_Write);
LUAX_DECL_METHOD(_ReadAsync);
LUAX_DECL_METHOD(_WriteAsync);
LUAX_DECL_METHOD(_IsEOF);
LUAX_DECL_METHOD(_Flush);
LUAX_DECL_METHOD(_Tell);
LUAX_DECL_METHOD(_Seek);
LUAX_DECL_METHOD(_SetBuffer);
LUAX_DECL_METHOD(_GetBuffer);
LUAX_DECL_METHOD(_GetFileName);
LUAX_DECL_METHOD(_GetExtension);
LUAX_DECL_METHOD(_GetName);
};
}
}
#endif
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