FileStream.h

/* miktex/Core/FileStream.h:                            -*- C++ -*-
 
   Copyright (C) 1996-2018 Christian Schenk
 
   This file is part of the MiKTeX Core Library.
 
   The MiKTeX Core Library 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, or
   (at your option) any later version.
 
   The MiKTeX Core Library 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 the MiKTeX Core Library; if not, write to the Free
   Software Foundation, 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA. */
 
#pragma once
 
#if !defined(D6DD4259AB704AE6ABDE141135E7C19E)
#define D6DD4259AB704AE6ABDE141135E7C19E
 
#include <miktex/Core/config.h>
 
#include <cstddef>
#include <cstdio>
 
#include "Stream.h"
 
MIKTEX_CORE_BEGIN_NAMESPACE;

class MIKTEXCORETYPEAPI(FileStream) :
  public Stream
{
public:
  FileStream() = default;
 
public:
  FileStream(const FileStream& other) = delete;
 
public:
  FileStream& operator= (const FileStream& other) = delete;
 
public:
  FileStream(FileStream&& other) = delete;
 
public:
  FileStream& operator=(FileStream&& other) = delete;
 
public:
  virtual MIKTEXCOREEXPORT MIKTEXTHISCALL ~FileStream() noexcept;
 
public:
  FileStream(FILE* file) :
    file(file)
  {
  }
 
public:
  MIKTEXCORETHISAPI(void) Attach(FILE* file);

public:
  MIKTEXCORETHISAPI(void) Close();
 
public:
  MIKTEXCORETHISAPI(std::size_t) Read(void* data, std::size_t count) override;
 
public:
  MIKTEXCORETHISAPI(void) Write(const void* data, std::size_t count) override;
 
public:
  MIKTEXCORETHISAPI(void) Seek(long offset, SeekOrigin origin) override;
 
public:
  MIKTEXCORETHISAPI(long) GetPosition() const override;
 
public:
  MIKTEXCORETHISAPI(void) SetBinary();
 
public:
  FILE* GetFile() const
  {
    return file;
  }
 
public:
  FILE* Detach()
  {
    FILE* ret = file;
    file = nullptr;
    return ret;
  }
 
private:
  FILE* file = nullptr;
};
 
MIKTEX_CORE_END_NAMESPACE;
 
#endif