mirror of
https://github.com/oxen-io/lokinet
synced 2023-12-14 06:53:00 +01:00
114 lines
2.5 KiB
C++
114 lines
2.5 KiB
C++
#ifndef LLARP_LINK_SESSION_HPP
|
|
#define LLARP_LINK_SESSION_HPP
|
|
|
|
#include <crypto/types.hpp>
|
|
#include <net/net.hpp>
|
|
#include <router_contact.hpp>
|
|
#include <util/types.hpp>
|
|
|
|
#include <functional>
|
|
|
|
namespace llarp
|
|
{
|
|
struct LinkIntroMessage;
|
|
struct ILinkMessage;
|
|
struct ILinkLayer;
|
|
|
|
struct ILinkSession
|
|
{
|
|
virtual ~ILinkSession() = default;
|
|
|
|
/// delivery status of a message
|
|
enum class DeliveryStatus
|
|
{
|
|
eDeliverySuccess = 0,
|
|
eDeliveryDropped = 1
|
|
};
|
|
|
|
/// equiv of shared_from_this but for the interface type so
|
|
/// that each implementation can use shared_from_this
|
|
virtual std::shared_ptr< ILinkSession >
|
|
BorrowSelf() = 0;
|
|
|
|
/// hook for utp for when we have established a connection
|
|
virtual void
|
|
OnLinkEstablished(ILinkLayer *){};
|
|
|
|
/// called every event loop tick
|
|
virtual void
|
|
Pump() = 0;
|
|
|
|
/// called every timer tick
|
|
virtual void Tick(llarp_time_t) = 0;
|
|
|
|
/// message delivery result hook function
|
|
using CompletionHandler = std::function< void(DeliveryStatus) >;
|
|
|
|
/// send a message buffer to the remote endpoint
|
|
virtual bool
|
|
SendMessageBuffer(const llarp_buffer_t &, CompletionHandler handler) = 0;
|
|
|
|
/// start the connection
|
|
virtual void
|
|
Start() = 0;
|
|
|
|
virtual void
|
|
Close() = 0;
|
|
|
|
/// recv packet on low layer
|
|
/// not used by utp
|
|
virtual void
|
|
Recv_LL(const llarp_buffer_t &)
|
|
{
|
|
}
|
|
|
|
/// send a keepalive to the remote endpoint
|
|
virtual bool
|
|
SendKeepAlive() = 0;
|
|
|
|
/// return true if we are established
|
|
virtual bool
|
|
IsEstablished() const = 0;
|
|
|
|
/// return true if this session has timed out
|
|
virtual bool
|
|
TimedOut(llarp_time_t now) const = 0;
|
|
|
|
/// get remote public identity key
|
|
virtual PubKey
|
|
GetPubKey() const = 0;
|
|
|
|
/// get remote address
|
|
virtual Addr
|
|
GetRemoteEndpoint() const = 0;
|
|
|
|
// get remote rc
|
|
virtual RouterContact
|
|
GetRemoteRC() const = 0;
|
|
|
|
/// handle a valid LIM
|
|
std::function< bool(const LinkIntroMessage *msg) > GotLIM;
|
|
|
|
/// send queue current blacklog
|
|
virtual size_t
|
|
SendQueueBacklog() const = 0;
|
|
|
|
/// get parent link layer
|
|
virtual ILinkLayer *
|
|
GetLinkLayer() const = 0;
|
|
|
|
/// renegotiate session when we have a new RC locally
|
|
virtual bool
|
|
RenegotiateSession() = 0;
|
|
|
|
/// return true if we should send an explicit keepalive message
|
|
virtual bool
|
|
ShouldPing() const = 0;
|
|
|
|
virtual util::StatusObject
|
|
ExtractStatus() const = 0;
|
|
};
|
|
} // namespace llarp
|
|
|
|
#endif
|