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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2017 Red Hat, Inc
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#pragma once
#include <queue>
#include <seastar/core/future.hh>
#include <seastar/core/shared_ptr.hh>
#include "Fwd.h"
namespace ceph::net {
using seq_num_t = uint64_t;
class Connection : public seastar::enable_shared_from_this<Connection> {
protected:
entity_addr_t peer_addr;
peer_type_t peer_type = -1;
public:
Connection() {}
virtual ~Connection() {}
virtual Messenger* get_messenger() const = 0;
const entity_addr_t& get_peer_addr() const { return peer_addr; }
virtual int get_peer_type() const = 0;
/// true if the handshake has completed and no errors have been encountered
virtual seastar::future<bool> is_connected() = 0;
/// send a message over a connection that has completed its handshake
virtual seastar::future<> send(MessageRef msg) = 0;
/// send a keepalive message over a connection that has completed its
/// handshake
virtual seastar::future<> keepalive() = 0;
/// close the connection and cancel any any pending futures from read/send
virtual seastar::future<> close() = 0;
/// which shard id the connection lives
virtual seastar::shard_id shard_id() const = 0;
virtual void print(ostream& out) const = 0;
};
inline ostream& operator<<(ostream& out, const Connection& conn) {
out << "[";
conn.print(out);
out << "]";
return out;
}
} // namespace ceph::net
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