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

//
// SplitterChannel.h
//
// Library: Foundation
// Package: Logging
// Module:  SplitterChannel
//
// Definition of the SplitterChannel class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier:	BSL-1.0
//


#ifndef Foundation_SplitterChannel_INCLUDED
#define Foundation_SplitterChannel_INCLUDED


#include <vector>
#include "Poco/Channel.h"
#include "Poco/Foundation.h"
#include "Poco/Mutex.h"


namespace Poco
{


class Foundation_API SplitterChannel : public Channel
/// This channel sends a message to multiple
/// channels simultaneously.
{
public:
    SplitterChannel();
    /// Creates the SplitterChannel.

    void addChannel(Channel * pChannel);
    /// Attaches a channel, which may not be null.

    void removeChannel(Channel * pChannel);
    /// Removes a channel.

    void log(const Message & msg);
    /// Sends the given Message to all
    /// attaches channels.

    void setProperty(const std::string & name, const std::string & value);
    /// Sets or changes a configuration property.
    ///
    /// Only the "channel" property is supported, which allows
    /// adding a comma-separated list of channels via the LoggingRegistry.
    /// The "channel" property is set-only.
    /// To simplify file-based configuration, all property
    /// names starting with "channel" are treated as "channel".

    void close();
    /// Removes all channels.

    int count() const;
    /// Returns the number of channels in the SplitterChannel.

protected:
    ~SplitterChannel();

private:
    typedef std::vector<Channel *> ChannelVec;

    ChannelVec _channels;
    mutable FastMutex _mutex;
};


} // namespace Poco


#endif // Foundation_SplitterChannel_INCLUDED