lokinet/llarp/router/i_outbound_session_maker.hpp

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#pragma once
#include <llarp/util/status.hpp>
#include <llarp/util/types.hpp>
#include <llarp/util/formattable.hpp>
#include <fmt/format.h>
#include <functional>
namespace llarp
{
struct ILinkSession;
struct RouterID;
struct RouterContact;
enum class SessionResult
{
Establish,
Timeout,
RouterNotFound,
InvalidRouter,
NoLink,
EstablishFail
};
constexpr std::string_view
ToString(SessionResult sr)
{
return sr == llarp::SessionResult::Establish ? "success"sv
: sr == llarp::SessionResult::Timeout ? "timeout"sv
: sr == llarp::SessionResult::NoLink ? "no link"sv
: sr == llarp::SessionResult::InvalidRouter ? "invalid router"sv
: sr == llarp::SessionResult::RouterNotFound ? "not found"sv
: sr == llarp::SessionResult::EstablishFail ? "establish failed"sv
: "???"sv;
}
template <>
constexpr inline bool IsToStringFormattable<SessionResult> = true;
using RouterCallback = std::function<void(const RouterID&, const SessionResult)>;
struct IOutboundSessionMaker
{
virtual ~IOutboundSessionMaker() = default;
virtual bool
OnSessionEstablished(ILinkSession* session) = 0;
virtual void
OnConnectTimeout(ILinkSession* session) = 0;
virtual void
CreateSessionTo(const RouterID& router, RouterCallback on_result) = 0;
virtual void
CreateSessionTo(const RouterContact& rc, RouterCallback on_result) = 0;
virtual bool
HavePendingSessionTo(const RouterID& router) const = 0;
virtual void
ConnectToRandomRouters(int numDesired) = 0;
virtual util::StatusObject
ExtractStatus() const = 0;
virtual bool
ShouldConnectTo(const RouterID& router) const = 0;
};
} // namespace llarp