mirror of
https://github.com/XRPLF/clio.git
synced 2025-11-04 20:05:51 +00:00
87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
//------------------------------------------------------------------------------
|
|
/*
|
|
This file is part of clio: https://github.com/XRPLF/clio
|
|
Copyright (c) 2024, the clio developers.
|
|
|
|
Permission to use, copy, modify, and distribute this software for any
|
|
purpose with or without fee is hereby granted, provided that the above
|
|
copyright notice and this permission notice appear in all copies.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
//==============================================================================
|
|
|
|
#pragma once
|
|
|
|
#include "feed/Types.hpp"
|
|
#include "feed/impl/TrackableSignal.hpp"
|
|
#include "util/log/Logger.hpp"
|
|
#include "util/prometheus/Gauge.hpp"
|
|
|
|
#include <boost/asio/io_context.hpp>
|
|
#include <boost/asio/strand.hpp>
|
|
|
|
#include <cstdint>
|
|
#include <functional>
|
|
#include <memory>
|
|
#include <string>
|
|
|
|
namespace feed::impl {
|
|
|
|
/**
|
|
* @brief Base class for single feed.
|
|
*/
|
|
class SingleFeedBase {
|
|
boost::asio::strand<boost::asio::io_context::executor_type> strand_;
|
|
std::reference_wrapper<util::prometheus::GaugeInt> subCount_;
|
|
TrackableSignal<Subscriber, std::shared_ptr<std::string> const&> signal_;
|
|
util::Logger logger_{"Subscriptions"};
|
|
std::string name_;
|
|
|
|
public:
|
|
/**
|
|
* @brief Construct a new Single Feed Base object
|
|
* @param ioContext The actual publish will be called in the strand of this.
|
|
* @param name The promethues counter name of the feed.
|
|
*/
|
|
SingleFeedBase(boost::asio::io_context& ioContext, std::string const& name);
|
|
|
|
/**
|
|
* @brief Subscribe the feed.
|
|
* @param subscriber
|
|
*/
|
|
void
|
|
sub(SubscriberSharedPtr const& subscriber);
|
|
|
|
/**
|
|
* @brief Unsubscribe the feed.
|
|
* @param subscriber
|
|
*/
|
|
void
|
|
unsub(SubscriberSharedPtr const& subscriber);
|
|
|
|
/**
|
|
* @brief Publishes the feed in strand.
|
|
* @param msg The message.
|
|
*/
|
|
void
|
|
pub(std::string msg) const;
|
|
|
|
/**
|
|
* @brief Get the count of subscribers.
|
|
*/
|
|
std::uint64_t
|
|
count() const;
|
|
|
|
private:
|
|
void
|
|
unsubInternal(SubscriberPtr subscriber);
|
|
};
|
|
} // namespace feed::impl
|