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////////////////////////////////////////////////////////////////////////////////////////
//
// Nestopia - NES/Famicom emulator written in C++
//
// Copyright (C) 2003-2008 Martin Freij
//
// This file is part of Nestopia.
//
// Nestopia is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// Nestopia is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Nestopia; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
////////////////////////////////////////////////////////////////////////////////////////
#ifndef NST_IO_FILE_H
#define NST_IO_FILE_H
#pragma once
#include "language/resource.h"
#include "NstString.hpp"
namespace Nestopia
{
namespace Io
{
class File
{
public:
enum
{
READ = 0x01,
WRITE = 0x02,
EMPTY = 0x04,
EXISTING = 0x08,
SEQUENTIAL_ACCESS = 0x10,
RANDOM_ACCESS = 0x20,
WRITE_THROUGH = 0x40,
COLLECT = READ|EXISTING|SEQUENTIAL_ACCESS,
DUMP = WRITE|EMPTY|SEQUENTIAL_ACCESS
};
enum
{
UTF16_LE = 0xFEFF,
UTF16_BE = 0xFFFE
};
enum
{
MAX_SIZE = 0x7FFFFFFF
};
enum Offset
{
BEGIN,
CURRENT,
END
};
enum Exception
{
ERR_READ = IDS_FILE_ERR_READ,
ERR_WRITE = IDS_FILE_ERR_WRITE,
ERR_SEEK = IDS_FILE_ERR_READ,
ERR_OPEN = IDS_FILE_ERR_OPEN,
ERR_NOT_FOUND = IDS_FILE_ERR_NOTFOUND,
ERR_ALREADY_EXISTS = IDS_FILE_ERR_ALREADYEXISTS,
ERR_READ_ONLY = IDS_FILE_ERR_READONLY,
ERR_TOO_BIG = IDS_FILE_ERR_TOOBIG
};
File();
File(GenericString,uint);
~File();
void Open(GenericString,uint);
void Close();
uint Seek(Offset,int=0) const;
void Truncate() const;
void Truncate(uint) const;
void Flush() const;
uint Size() const;
void Write (const void*,uint) const;
uint WriteSome (const void*,uint) const;
void Write8 (uint) const;
void Write16 (uint) const;
void Write32 (uint) const;
void Read (void*,uint) const;
uint ReadSome (void*,uint) const;
uint Read8 () const;
uint Read16 () const;
uint Read32 () const;
void Peek (void*,uint) const;
void Peek (uint,void*,uint) const;
uint Peek8 () const;
uint Peek16 () const;
uint Peek32 () const;
void ReadText (String::Heap<char>&) const;
void ReadText (String::Heap<wchar_t>&) const;
void WriteText (cstring,uint,bool=false) const;
void WriteText (wcstring,uint,bool=false) const;
static void ParseText (cstring,uint,String::Heap<char>&);
static void ParseText (cstring,uint,String::Heap<wchar_t>&);
private:
class Proxy
{
const File& file;
public:
Proxy(const File& file)
: file(file) {}
void operator = (int pos) const
{
file.Seek( BEGIN, pos );
}
void operator += (int count) const
{
file.Seek( CURRENT, count );
}
void operator -= (int count) const
{
file.Seek( CURRENT, -count );
}
operator uint () const
{
return file.Seek( CURRENT );
}
};
class StreamProxy
{
const File& file;
public:
StreamProxy(const File& f)
: file(f) {}
template<typename T>
const StreamProxy& operator << (const T& buffer) const
{
NST_COMPILE_ASSERT( sizeof(buffer[0]) == sizeof(char) );
file.Write( buffer.Ptr(), buffer.Length() );
return *this;
}
template<typename T> void operator >> (T& buffer) const
{
NST_COMPILE_ASSERT( sizeof(buffer[0]) == sizeof(char) );
buffer.Resize( file.Size() - file.Position() );
file.Read( buffer.Ptr(), buffer.Length() );
}
};
void* handle;
Path name;
public:
bool IsOpen() const
{
return handle;
}
const Path& GetName() const
{
return name;
}
StreamProxy Stream() const
{
return *this;
}
Proxy Position() const
{
return *this;
}
void Rewind() const
{
Seek( BEGIN );
}
static bool Delete(wcstring);
};
}
}
#endif
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