Files
bitcoin/src/interfaces/handler.h
Cory Fields 091736a153 signals: re-add forward-declares to interface headers
The real includes were only needed temporarily while supporting btcsignals as
an alias for boost::signals2.
2026-04-03 18:20:50 +00:00

38 lines
1.1 KiB
C++

// Copyright (c) 2018-present The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_INTERFACES_HANDLER_H
#define BITCOIN_INTERFACES_HANDLER_H
#include <functional>
#include <memory>
namespace btcsignals {
class connection;
} // namespace btcsignals
namespace interfaces {
//! Generic interface for managing an event handler or callback function
//! registered with another interface. Has a single disconnect method to cancel
//! the registration and prevent any future notifications.
class Handler
{
public:
virtual ~Handler() = default;
//! Disconnect the handler.
virtual void disconnect() = 0;
};
//! Return handler wrapping a btcsignals connection.
std::unique_ptr<Handler> MakeSignalHandler(btcsignals::connection connection);
//! Return handler wrapping a cleanup function.
std::unique_ptr<Handler> MakeCleanupHandler(std::function<void()> cleanup);
} // namespace interfaces
#endif // BITCOIN_INTERFACES_HANDLER_H