Struct Config 

pub struct Config {

    pub header_table_size: u32,
    pub encoder_table_size: u32,
    pub max_concurrent_streams: u32,
    pub initial_window_size: u32,
    pub connection_window_size: u32,
    pub window_autotune: bool,
    pub max_stream_window: u32,
    pub max_connection_window: u32,
    pub max_frame_size: u32,
    pub max_header_list_size: u32,
    pub max_continuation_frames: u32,
    pub max_send_buffer: usize,
    pub settings_timeout_ms: u64,
    pub graceful_timeout_ms: u64,
    pub budgets: Budgets,
    pub enable_connect_protocol: bool,
    pub keepalive_interval_ms: Option<u64>,
    pub keepalive_timeout_ms: u64,
}

Settings and limits for one side of a connection.

Fields

header_table_size: u32

SETTINGS_HEADER_TABLE_SIZE: the HPACK table we let the peer use for our decoder.

encoder_table_size: u32

Largest HPACK table our encoder keeps, whatever the peer allows.

max_concurrent_streams: u32

SETTINGS_MAX_CONCURRENT_STREAMS, and the cap on streams whose handler is running.

initial_window_size: u32

SETTINGS_INITIAL_WINDOW_SIZE: the starting per-stream receive window.

connection_window_size: u32

The starting connection receive window.

window_autotune: bool

Grow the receive windows from bandwidth-delay estimates (PING round trips).

max_stream_window: u32

Per-stream window cap for auto-tuning: the most a stream can have unreleased.

max_connection_window: u32

Connection window cap for auto-tuning: the most the connection can have unreleased.

max_frame_size: u32

SETTINGS_MAX_FRAME_SIZE we accept.

max_header_list_size: u32

SETTINGS_MAX_HEADER_LIST_SIZE, enforced on the decoded list and on the compressed header block across CONTINUATION frames.

max_continuation_frames: u32

Most CONTINUATION frames in one header block.

max_send_buffer: usize

Output buffer cap: DATA is accepted only while less than this is waiting to be written, and input processing pauses while twice this is waiting.

settings_timeout_ms: u64

How long the peer may take to acknowledge our SETTINGS.

graceful_timeout_ms: u64

Graceful shutdown: how long to wait for the PING that follows the first GOAWAY.

budgets: Budgets

Frame budgets per sliding window.

enable_connect_protocol: bool

Server: announce SETTINGS_ENABLE_CONNECT_PROTOCOL and accept extended CONNECT requests with a :protocol pseudo-header (RFC 8441, WebSocket over HTTP/2). Default off; needs the connect-protocol cargo feature (on by default).

keepalive_interval_ms: Option<u64>

PING keepalive: after this many milliseconds without any frame from the peer, send a PING. None (the default) sends none. Needs the keepalive cargo feature (on by default).

keepalive_timeout_ms: u64

PING keepalive: close the connection (GOAWAY NO_ERROR, then Event::Closed) when nothing arrives from the peer within this many milliseconds of a keepalive PING. Default 20 s.

Trait Implementations

impl Clone for Config

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Config

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Config

fn default() -> Self

Returns the “default value” for a type.