workerthreadbase.cpp

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Boost Software License - Version 1.0 - August 17th, 2003
 *
 * Permission is hereby granted, free of charge, to any person or organization
 * obtaining a copy of the software and accompanying documentation covered by
 * this license (the "Software") to use, reproduce, display, distribute,
 * execute, and transmit the Software, and to prepare derivative works of the
 * Software, and to permit third-parties to whom the Software is furnished to
 * do so, all subject to the following:
 *
 * The copyright notices in the Software and this entire statement, including
 * the above license grant, this restriction and the following disclaimer,
 * must be included in all copies of the Software, in whole or in part, and
 * all derivative works of the Software, unless such copies or derivative
 * works are solely in the form of machine-executable object code generated by
 * a source language processor.
 *
 * 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, TITLE AND NON-INFRINGEMENT. IN NO EVENT
 * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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 **********************************************************************/
 
#include "workerthreadbase.h"
#include <util/sll/slotclosure.h>
 
namespace LC
{
namespace Util
{
    void WorkerThreadBase::SetPaused (bool paused)
    {
        if (paused == IsPaused_)
            return;
 
        IsPaused_ = paused;
        if (!paused)
            emit rotateFuncs ();
    }
 
    size_t WorkerThreadBase::GetQueueSize ()
    {
        QMutexLocker locker { &FunctionsMutex_ };
        return Functions_.size ();
    }
 
    void WorkerThreadBase::run ()
    {
        SlotClosure<NoDeletePolicy> rotator
        {
            [this] { RotateFuncs (); },
            this,
            SIGNAL (rotateFuncs ()),
            nullptr
        };
 
        Initialize ();
 
        RotateFuncs ();
 
        QThread::run ();
 
        Cleanup ();
    }
 
    void WorkerThreadBase::RotateFuncs ()
    {
        if (IsPaused_)
            return;
 
        decltype (Functions_) funcs;
 
        {
            QMutexLocker locker { &FunctionsMutex_ };
 
            using std::swap;
            swap (funcs, Functions_);
        }
 
        for (const auto& func : funcs)
            func ();
    }
}
}