urho3d/Source/Urho3D/Core/Condition.h

//
// Copyright (c) 2008-2020 the Urho3D project.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// THE SOFTWARE.
//

#pragma once

#ifdef URHO3D_IS_BUILDING
#include "Urho3D.h"
#else
#include <Urho3D/Urho3D.h>
#endif

namespace Urho3D
{

/// %Condition on which a thread can wait.
class URHO3D_API Condition
{
public:
    /// Construct.
    Condition();

    /// Destruct.
    ~Condition();

    /// Set the condition. Will be automatically reset once a waiting thread wakes up.
    void Set();

    /// Wait on the condition.
    void Wait();

private:
#ifndef _WIN32
    /// Mutex for the event, necessary for pthreads-based implementation.
    void* mutex_;
#endif
    /// Operating system specific event.
    void* event_;
};

}