MessageManagerBase.h

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/*****************************************************************************
 * vim:tw=78
 *
 * Copyright (C) 2022 Richard Hacker (lerichi at gmx dot net),
 *                    Bjarne von Horn (vh at igh dot de).
 *
 * This file is part of the PdCom library.
 *
 * The PdCom library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * The PdCom 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 Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with the PdCom library. If not, see <http://www.gnu.org/licenses/>.
 *
 *****************************************************************************/
 
#ifndef PDCOM5_MESSAGEMANAGERBASE_H
#define PDCOM5_MESSAGEMANAGERBASE_H
 
#include "pdcom5_export.h"
 
#include <chrono>
#include <cstdint>
#include <memory>
#include <string>
#include <vector>
 
namespace PdCom {
namespace impl {
class Process;
}
 
enum class LogLevel : int {
    Reset     = -1, 
    Emergency = 0,  
    Alert     = 1,  
    Critical  = 2,  
    Error     = 3,  
    Warn      = 4,  
    Info      = 6,  
    Debug     = 7,  
    Trace     = 8,  
};
 
struct Message
{
    uint32_t seqNo;                
    LogLevel level;                
    std::string path;              
    std::chrono::nanoseconds time; 
    std::string text;              
    int index;                     
};
 
class PDCOM5_PUBLIC MessageManagerBase
{
  public:
    MessageManagerBase();
    MessageManagerBase(MessageManagerBase &&) noexcept;
    MessageManagerBase(MessageManagerBase const &) = delete;
    MessageManagerBase &operator=(MessageManagerBase &&) noexcept;
    MessageManagerBase &operator=(MessageManagerBase const &) = delete;
 
  protected:
    void getMessage(uint32_t seqNo) const;
 
    void activeMessages() const;
 
    virtual ~MessageManagerBase();
 
  private:
    friend impl::Process;
    std::weak_ptr<impl::Process> process_;
 
    virtual void processMessage(Message message);
 
    virtual void getMessageReply(Message message);
 
    virtual void activeMessagesReply(std::vector<Message> messageList);
};
}  // namespace PdCom
 
 
#endif  // PDCOM5_MESSAGEMANAGERBASE_H