State of one virtual link, the abstraction CORE sits on top of. More...

#include <gnunet_transport_monitor_service.h>

Collaboration diagram for GNUNET_TRANSPORT_LinkInformation:

Data Fields
const char *	communicators
	Comma-separated address prefixes of the communicators currently carrying the link ("tcp", "udp", ...), never NULL but possibly the empty string.

enum GNUNET_TRANSPORT_LinkRoute	route
	How the link is routed.

int	confirmed
	GNUNET_YES if the link is confirmed, i.e.

unsigned int	distance
	Hops of the shortest DV path, excluding the next hop and the target itself; so 0 already means two hops.

unsigned int	num_queues
	Number of queues to the neighbour carrying the link.

int	core_recv_window
	How many more messages we may hand to CORE before it must acknowledge them.

unsigned int	stalled
	Number of messages whose flow control ACK transport is withholding because core_recv_window is exhausted.

unsigned int	pending
	Number of messages queued for transmission to the target.

unsigned int	fc_retransmit_count
	Number of flow control retransmissions of the running task.

uint64_t	available_fc_window_size
	RAM transport is willing to spend on this link.

uint64_t	incoming_fc_window_size_ram
	RAM currently held for this link.

uint64_t	incoming_fc_window_size
	Window we last granted the other peer.

uint64_t	incoming_fc_window_size_used
	How much of incoming_fc_window_size the other peer used.

int64_t	incoming_fc_window_size_loss
	Current estimate of the message loss rate for the sender.

uint64_t	outbound_fc_window_size
	Window the other peer granted us.

uint64_t	outbound_fc_window_size_used
	How much of outbound_fc_window_size we used.

struct GNUNET_TIME_Relative	last_fc_rtt
	RTT of the last flow control exchange.

struct GNUNET_TIME_Relative	other_rtt
	RTT over all DV paths, as calculated by the target.

struct GNUNET_TIME_Absolute	last_fc_transmission
	When did we last send a flow control message?

Detailed Description

State of one virtual link, the abstraction CORE sits on top of.

Definition at line 203 of file gnunet_transport_monitor_service.h.

Field Documentation

◆ communicators

const char* GNUNET_TRANSPORT_LinkInformation::communicators

Comma-separated address prefixes of the communicators currently carrying the link ("tcp", "udp", ...), never NULL but possibly the empty string.

For a DV link these are the communicators to the next hop of the shortest path, not to the target.

Definition at line 211 of file gnunet_transport_monitor_service.h.

Referenced by handle_link_list_response(), link_cb(), and print_link_verbose().

◆ route

enum GNUNET_TRANSPORT_LinkRoute GNUNET_TRANSPORT_LinkInformation::route

How the link is routed.

Definition at line 216 of file gnunet_transport_monitor_service.h.

Referenced by handle_link_list_response(), and route_to_string().

◆ confirmed

int GNUNET_TRANSPORT_LinkInformation::confirmed

GNUNET_YES if the link is confirmed, i.e.

established.

Definition at line 221 of file gnunet_transport_monitor_service.h.

Referenced by handle_link_list_response(), and print_link_verbose().

◆ distance

unsigned int GNUNET_TRANSPORT_LinkInformation::distance

Hops of the shortest DV path, excluding the next hop and the target itself; so 0 already means two hops.

Meaningless if route is GNUNET_TRANSPORT_LINK_ROUTE_DIRECT.

Definition at line 228 of file gnunet_transport_monitor_service.h.

Referenced by handle_link_list_response(), and route_to_string().

◆ num_queues

unsigned int GNUNET_TRANSPORT_LinkInformation::num_queues

Number of queues to the neighbour carrying the link.

Definition at line 233 of file gnunet_transport_monitor_service.h.

Referenced by handle_link_list_response(), and print_link_verbose().

◆ core_recv_window

int GNUNET_TRANSPORT_LinkInformation::core_recv_window

How many more messages we may hand to CORE before it must acknowledge them.

At or below zero exactly when transport is withholding flow control credit from the communicators; combined with a non-zero stalled that is a link CORE has stopped draining.

Definition at line 241 of file gnunet_transport_monitor_service.h.

Referenced by handle_link_list_response(), link_cb(), and print_link_verbose().