class Semaphore {
#ifdef PLATFORM_WIN32
	HANDLE     handle;
#else
	sem_t      sem;
	sem_t     *namedSem;
#endif

public:
	void       Wait();
	void       Release();

	Semaphore();
	Semaphore(const char *name);
	~Semaphore();
}; 

void Semaphore::Release()
{
	ReleaseSemaphore(handle, 1, NULL);
}

void Semaphore::Wait()
{
	WaitForSingleObject(handle, INFINITE);
}

Semaphore::Semaphore()
{
	handle = CreateSemaphore(NULL, 0, INT_MAX, NULL);
}

Semaphore::Semaphore(const char *name)
{
	handle = CreateSemaphore(NULL, 0, INT_MAX, name);
}

Semaphore::~Semaphore()
{
	CloseHandle(handle);
}

void Semaphore::Wait()
{
	namedSem ? sem_wait(namedSem) : sem_wait(&sem);
}

Semaphore::Semaphore()
	:namedSem(NULL)

{
	sem_init(&sem, 0, 0);
}

Semaphore::Semaphore(const char *name)
{
	namedSem = sem_open(name, O_CREAT);
}

Semaphore::~Semaphore()
{
	namedSem ? sem_close(namedSem) : sem_destroy(&sem);
}