/*
 * Acess2 C++ Library
 * - By John Hodge (thePowersGang)
 *
 * mutex (header)
 * - C++11's tutex handling
 */
#ifndef _LIBCXX_MUTEX_
#define _LIBCXX_MUTEX_

#include "_libcxx_helpers.h"

#if !_CXX11_AVAIL
# error	"<mutex> requires C++11 support"
#endif

namespace std {

#if _CXX11_AVAIL

class mutex
{
public:
	constexpr mutex() noexcept:
		m_flag(false)
	{
	}
	mutex(const mutex&) = delete;
	mutex& operator=(const mutex&) = delete;
	~mutex();
	
	void lock();
	bool try_lock();
	void unlock();

	typedef void*	native_handle;
private:
	// TODO: Proper userland mutex support
	bool	m_flag;
};

struct defer_lock_t {};
struct try_to_lock_t {};
struct adopt_lock_t {};

template< class Mutex >
class lock_guard
{
public:
	typedef Mutex	mutex_type;
private:
	mutex_type&	m_lock;
public:
	lock_guard(mutex_type& m):
		m_lock(m)
	{
		m_lock.lock();
	}
	lock_guard(mutex_type& m, std::adopt_lock_t t):
		m_lock(m)
	{
		// Adopted
	}
	~lock_guard() {
		m_lock.unlock();
	}
};

#endif

};	// namespace std

#endif

// vim: ft=cpp