MessageQueue.h

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/****
 * MessageQueue.h
 *
 * Copyright 2019 mikee47 <mike@sillyhouse.net>
 *
 * This file is part of the Sming SSDP Library
 *
 * This library is free software: you can redistribute it and/or modify it under the terms of the
 * GNU General Public License as published by the Free Software Foundation, version 3 or later.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this library.
 * If not, see <https://www.gnu.org/licenses/>.
 *
 ****/
 
#pragma once
 
#include "MessageSpec.h"
#include <Timer.h>
 
namespace SSDP
{
using MessageDelegate = Delegate<void(MessageSpec* ms)>;
 
class MessageQueue
{
public:
    MessageQueue(MessageDelegate delegate);
 
    ~MessageQueue()
    {
        clear();
    }
 
    void clear();
 
    unsigned count();
 
    void setCallback(MessageDelegate delegate)
    {
        this->delegate = delegate;
    }
 
    void add(MessageSpec* ms, uint32_t intervalMs);
 
    bool contains(const MessageSpec& ms) const;
 
    unsigned remove(void* object);
 
private:
    void setTimer();
 
    Timer timer;
    MessageDelegate delegate;
    MessageSpec* head{nullptr};
    bool timerSet{false};
};
 
} // namespace SSDP