tetris/SFML-2.4.2/include/SFML/System/ThreadLocal.hpp
2018-02-06 01:44:42 +02:00

104 lines
3.3 KiB
C++

////////////////////////////////////////////////////////////
//
// 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_THREADLOCAL_HPP
#define SFML_THREADLOCAL_HPP
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/System/Export.hpp>
#include <SFML/System/NonCopyable.hpp>
#include <cstdlib>
namespace sf
{
namespace priv
{
class ThreadLocalImpl;
}
////////////////////////////////////////////////////////////
/// \brief Defines variables with thread-local storage
///
////////////////////////////////////////////////////////////
class SFML_SYSTEM_API ThreadLocal : NonCopyable
{
public:
////////////////////////////////////////////////////////////
/// \brief Default constructor
///
/// \param value Optional value to initialize the variable
///
////////////////////////////////////////////////////////////
ThreadLocal(void* value = NULL);
////////////////////////////////////////////////////////////
/// \brief Destructor
///
////////////////////////////////////////////////////////////
~ThreadLocal();
////////////////////////////////////////////////////////////
/// \brief Set the thread-specific value of the variable
///
/// \param value Value of the variable for the current thread
///
////////////////////////////////////////////////////////////
void setValue(void* value);
////////////////////////////////////////////////////////////
/// \brief Retrieve the thread-specific value of the variable
///
/// \return Value of the variable for the current thread
///
////////////////////////////////////////////////////////////
void* getValue() const;
private:
////////////////////////////////////////////////////////////
// Member data
////////////////////////////////////////////////////////////
priv::ThreadLocalImpl* m_impl; ///< Pointer to the OS specific implementation
};
} // namespace sf
#endif // SFML_THREADLOCAL_HPP
////////////////////////////////////////////////////////////
/// \class sf::ThreadLocal
/// \ingroup system
///
/// This class manipulates void* parameters and thus is not
/// appropriate for strongly-typed variables. You should rather
/// use the sf::ThreadLocalPtr template class.
///
////////////////////////////////////////////////////////////