/usr/include/SFML/System/FileInputStream.hpp is in libsfml-dev 2.4.2+dfsg-4.
This file is owned by root:root, with mode 0o644.
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//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2017 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
#ifndef SFML_FILEINPUTSTREAM_HPP
#define SFML_FILEINPUTSTREAM_HPP
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Config.hpp>
#include <SFML/System/Export.hpp>
#include <SFML/System/InputStream.hpp>
#include <SFML/System/NonCopyable.hpp>
#include <cstdio>
#include <string>
#ifdef ANDROID
namespace sf
{
namespace priv
{
class SFML_SYSTEM_API ResourceStream;
}
}
#endif
namespace sf
{
////////////////////////////////////////////////////////////
/// \brief Implementation of input stream based on a file
///
////////////////////////////////////////////////////////////
class SFML_SYSTEM_API FileInputStream : public InputStream, NonCopyable
{
public:
////////////////////////////////////////////////////////////
/// \brief Default constructor
///
////////////////////////////////////////////////////////////
FileInputStream();
////////////////////////////////////////////////////////////
/// \brief Default destructor
///
////////////////////////////////////////////////////////////
virtual ~FileInputStream();
////////////////////////////////////////////////////////////
/// \brief Open the stream from a file path
///
/// \param filename Name of the file to open
///
/// \return True on success, false on error
///
////////////////////////////////////////////////////////////
bool open(const std::string& filename);
////////////////////////////////////////////////////////////
/// \brief Read data from the stream
///
/// After reading, the stream's reading position must be
/// advanced by the amount of bytes read.
///
/// \param data Buffer where to copy the read data
/// \param size Desired number of bytes to read
///
/// \return The number of bytes actually read, or -1 on error
///
////////////////////////////////////////////////////////////
virtual Int64 read(void* data, Int64 size);
////////////////////////////////////////////////////////////
/// \brief Change the current reading position
///
/// \param position The position to seek to, from the beginning
///
/// \return The position actually sought to, or -1 on error
///
////////////////////////////////////////////////////////////
virtual Int64 seek(Int64 position);
////////////////////////////////////////////////////////////
/// \brief Get the current reading position in the stream
///
/// \return The current position, or -1 on error.
///
////////////////////////////////////////////////////////////
virtual Int64 tell();
////////////////////////////////////////////////////////////
/// \brief Return the size of the stream
///
/// \return The total number of bytes available in the stream, or -1 on error
///
////////////////////////////////////////////////////////////
virtual Int64 getSize();
private:
////////////////////////////////////////////////////////////
// Member data
////////////////////////////////////////////////////////////
#ifdef ANDROID
priv::ResourceStream* m_file;
#else
std::FILE* m_file; ///< stdio file stream
#endif
};
} // namespace sf
#endif // SFML_FILEINPUTSTREAM_HPP
////////////////////////////////////////////////////////////
/// \class sf::FileInputStream
/// \ingroup system
///
/// This class is a specialization of InputStream that
/// reads from a file on disk.
///
/// It wraps a file in the common InputStream interface
/// and therefore allows to use generic classes or functions
/// that accept such a stream, with a file on disk as the data
/// source.
///
/// In addition to the virtual functions inherited from
/// InputStream, FileInputStream adds a function to
/// specify the file to open.
///
/// SFML resource classes can usually be loaded directly from
/// a filename, so this class shouldn't be useful to you unless
/// you create your own algorithms that operate on an InputStream.
///
/// Usage example:
/// \code
/// void process(InputStream& stream);
///
/// FileInputStream stream;
/// if (stream.open("some_file.dat"))
/// process(stream);
/// \endcode
///
/// InputStream, MemoryInputStream
///
////////////////////////////////////////////////////////////
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