ClickHouse/base/poco/Foundation/include/Poco/EventChannel.h

//
// EventChannel.h
//
// Library: Foundation
// Package: Logging
// Module:  EventChannel
//
// Definition of the EventChannel class.
//
// Copyright (c) 2015, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier:	BSL-1.0
//


#ifndef Foundation_EventChannel_INCLUDED
#define Foundation_EventChannel_INCLUDED


#include "Poco/BasicEvent.h"
#include "Poco/Channel.h"
#include "Poco/Foundation.h"
#include "Poco/Message.h"


namespace Poco
{


class Foundation_API EventChannel : public Channel
/// The EventChannel fires the messageLogged event for every log message
/// received. This can be used to hook custom log message processing into
/// the logging framework.
{
public:
    Poco::BasicEvent<const Message> messageLogged;
    /// Fired when a message is logged by calling the log() method.

    EventChannel();
    /// Creates the EventChannel.

    void log(const Message & msg);
    /// Fires the messageLogged event.

protected:
    ~EventChannel();
    /// Destroys the EventChannel.
};


} // namespace Poco


#endif // Foundation_EventChannel_INCLUDED