ping_service.h File Reference

Liveness + round-trip-time probing, built purely on PeerNetwork. More...

#include "node/peer_network.h"
#include "peer/peer.h"
#include "peer/peer_id.h"
#include <atomic>
#include <chrono>
#include <condition_variable>
#include <cstdint>
#include <mutex>
#include <optional>
#include <thread>
#include <unordered_map>

Include dependency graph for ping_service.h:

Go to the source code of this file.

Classes
class	librats::PingService

Namespaces
namespace	librats

Detailed Description

Liveness + round-trip-time probing, built purely on PeerNetwork.

The first real subsystem on the redesigned plugin model — and the template for porting the larger ones. It depends on NOTHING but the PeerNetwork contract: no Node, no reactor internals, no friend. Its own thread periodically pings every connected peer; a peer echoes the probe back, letting the sender measure RTT. Easily mocked by handing it a fake PeerNetwork in tests.

Wire format (MessageType::Ping payload): [tag:u8][token:8 bytes]. tag 0 = ping, tag 1 = pong. The 8 token bytes are echoed back verbatim, so the original sender decodes them in its own format (endianness irrelevant).

Definition in file ping_service.h.