source: xplra/src/plugin/src/xplra/Request.h@ 51:bc776d590040

// Copyright (c) 2013 by István Váradi

// This file is part of XPLRA, a remote-access plugin for X-Plane

// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:

// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// The views and conclusions contained in the software and documentation are those
// of the authors and should not be interpreted as representing official policies,
// either expressed or implied, of the FreeBSD Project.

#ifndef XPLRA_REQUEST_H
#define XPLRA_REQUEST_H
//------------------------------------------------------------------------------

namespace xplra {

//------------------------------------------------------------------------------

/**
 * Base class for requests. A request is something that is executed in
 * the flight loop.
 */
class Request
{
private:
    /**
     * Indicate that the request is completed.
     */
    volatile bool completed;

public:
    /**
     * Construct the request.
     */
    Request();

    /**
     * Virtual destructor.
     */
    virtual ~Request();

protected:
    /**
     * Execute the request. Make this very fast!
     */
    virtual void execute() = 0;

    friend class RequestQueue;
};

//------------------------------------------------------------------------------
// Inline definitions
//------------------------------------------------------------------------------

inline Request::Request() :
    completed(false)
{
}

//------------------------------------------------------------------------------

inline Request::~Request()
{
}

//------------------------------------------------------------------------------

} /* namespace xplra */

//------------------------------------------------------------------------------
#endif // XPLRA_REQUEST_H

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// mode: C++
// c-basic-offset: 4
// indent-tabs-mode: nil
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