The `QuicTransportBase` is the base for {{QuicTransport}}. Most of

Promise<QuicTransportStats> getStats();

## Methods ## {#quic-transport-base-methods}

: <dfn for="QuicTransportBase" method>getStats()</dfn>

:: Gathers stats for this <code><a>QuicTransportBase</a></code>'s QUIC

connection and reports the result asynchronously.</p>

When close is called, the user agent MUST run the following steps:

1. Let |transport| be the QuicTransportBase on which `getStats` is invoked.

1. If |transport|'s {{[[WebTransportState]]}} is `"new"`, then abort

these steps.

1. Let |p| be a new promise.

1. Return |p| and continue the following steps in background.

1. Gather the stats from the underlying QUIC connection.

1. Once stats have been gathered, resolve |p| with the

{{QuicTransportStats}} object, representing the gathered stats.

## `QuicTransportStats` Dictionary ## {#quic-transport-stats}

The <dfn dictionary>QuicTransportStats</dfn> dictionary includes information

on QUIC connection level stats.

dictionary QuicTransportStats {

DOMHighResTimeStamp timestamp;

unsigned long long bytesSent;

unsigned long long packetsSent;

unsigned long numOutgoingStreamsCreated;

unsigned long numIncomingStreamsCreated;

unsigned long long bytesReceived;

unsigned long long packetsReceived;

DOMHighResTimeStamp minRtt;

unsigned long numReceivedDatagramsDropped;

};

The dictionary SHALL have the following attributes:

: <dfn for="QuicTransportStats" dict-member>timestamp</dfn>

:: The `timestamp` for when the stats are gathered, relative to the

UNIX epoch (Jan 1, 1970, UTC).

: <dfn for="QuicTransportStats" dict-member>bytesSent</dfn>

:: The number of bytes sent on the QUIC connection, including retransmissions.

Does not include UDP or any other outer framing.

: <dfn for="QuicTransportStats" dict-member>packetsSent</dfn>

:: The number of packets sent on the QUIC connection, including retransmissions.

: <dfn for="QuicTransportStats" dict-member>numOutgoingStreamsCreated</dfn>

:: The number of outgoing QUIC streams created on the QUIC connection.

: <dfn for="QuicTransportStats" dict-member>numIncomingStreamsCreated</dfn>

:: The number of incoming QUIC streams created on the QUIC connection.

: <dfn for="QuicTransportStats" dict-member>bytesReceived</dfn>

:: The number of total bytes received on the QUIC connection, including

duplicate data for streams. Does not include UDP or any other outer framing.

: <dfn for="QuicTransportStats" dict-member>packetsReceived</dfn>

:: The number of total packets received on the QUIC connection, including

packets that were not processable.

: <dfn for="QuicTransportStats" dict-member>minRtt</dfn>

:: The minimum RTT observed on the entire connection.

: <dfn for="QuicTransportStats" dict-member>numReceivedDatagramsDropped</dfn>

:: The number of datagrams that were dropped, due to too many datagrams buffered

between calls to {{receiveDatagrams()}}.