i_thread.hpp

Go to the documentation of this file.

// i_thread.hpp v1.0
/*
 *  Copyright (c) 2007 Leigh Johnston.
 *
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are
 *  met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *
 *     * 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.
 *
 *     * Neither the name of Leigh Johnston nor the names of any
 *       other contributors to this software may be used to endorse or
 *       promote products derived from this software without specific prior
 *       written permission.
 *
 *  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.
 */
 
#pragma once
 
#include <neolib/neolib.hpp>
 
namespace neolib
{
    enum class yield_type
    {
        NoYield,
        Yield,
        Sleep
    };
 
    enum class thread_state
    { 
        ReadyToStart, 
        Starting, 
        Started, 
        Finished, 
        Aborted, 
        Cancelled, 
        Error 
    };
 
    class i_thread
    {
        // exceptions
    public:
        struct nothing_to_do : std::logic_error { nothing_to_do() : std::logic_error{ "i_thread::nothing_to_do" } {} };
        // construction
    public:
        virtual ~i_thread() = default;
        // operations
    public:
        virtual const std::string& name() const noexcept = 0;
        virtual thread_state state() const noexcept = 0;
        virtual bool finished() const noexcept = 0;
        virtual void abort(bool aWait = true) = 0;
        // implementation
    protected:
        virtual void exec_preamble() = 0;
        virtual void exec(yield_type aYieldType = yield_type::NoYield) = 0;
    };
}