semaphore.h

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// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2013 sapier <sapier AT gmx DOT net>
 
#pragma once
 
#if defined(_WIN32)
#include <windows.h>
#elif defined(__MACH__) && defined(__APPLE__)
#include <mach/semaphore.h>
#else
#include <semaphore.h>
#endif
 
#include "util/basic_macros.h"
 
class Semaphore
{
public:
        Semaphore(int val = 0);
        ~Semaphore();
 
        DISABLE_CLASS_COPY(Semaphore);
 
        void post(unsigned int num = 1);
        void wait();
        bool wait(unsigned int time_ms);
 
private:
#if defined(WIN32)
        HANDLE semaphore;
#elif defined(__MACH__) && defined(__APPLE__)
        semaphore_t semaphore;
#else
        sem_t semaphore;
#endif
};