Enum ClientRequest

pub enum ClientRequest {
    WatchServers {
        responder: ClientWatchServersResponder,
    },
    WatchAddress {
        responder: ClientWatchAddressResponder,
    },
    WatchPrefixes {
        responder: ClientWatchPrefixesResponder,
    },
    Shutdown {
        responder: ClientShutdownResponder,
    },
}

Provides methods to watch for discovered network configurations.

This protocol encodes the underlying object’s lifetime in both directions; the underlying object is alive iff both ends of the protocol are open. That is:

• Closing the client end causes the object to be destroyed.
• Observing a closure of the server end indicates the object no longer exists.

Variants

WatchServers

Returns a list of DNS servers.

First call always returns a snapshot of the current list of servers or blocks if an empty list would be returned. Subsequent calls will block until the list of servers changes.

The list of servers changes over time by configuration or network topology changes, expiration, etc. Callers must repeatedly call WatchServers and replace any previously returned servers with new ones to avoid using stale or expired entries.

It is invalid to call this method while a previous call is pending. Doing so will cause the server end of the protocol to be closed.

• response servers The list of servers to use for DNS resolution, in priority order.

Fields

responder: ClientWatchServersResponder

WatchAddress

Returns an address and its parameters.

Yields a value for every address acquired by the client.

It is invalid to call this method while a previous call is pending. Doing so will cause the server end of the protocol to be closed.

• response address the assigned address.
• response address_parameters the parameters of the address.
• response address_state_provider provides address assignment state and enables updating address properties; client end is closed if the address becomes invalid (its valid lifetime expires and Renew and Rebind fail).

Fields

responder: ClientWatchAddressResponder

WatchPrefixes

Hanging get for prefix leases.

The first call to this method will return when there is at least one lease to report (the first call is guaranteed to return with a non-empty vector). Subsequent calls will return immediately if there is a change to report, or block until a change occurs.

It is invalid to call this method while a previous call is pending. Doing so will cause the server end of the protocol to be closed.

• response prefixes the assigned prefixes and their lifetimes.

Fields

responder: ClientWatchPrefixesResponder

Shutdown

Gracefully tears down the underlying object.

Blocks until any held addresses are gracefully released, as described in RFC 8415, Section 18.2.7.

The server end of the protocol is closed after this method returns.

• error a zx.Status if any of the addresses were not gracefully released, e.g. the client times out waiting for Reply to Release, or the interface is down and sending Release fails.

Fields

responder: ClientShutdownResponder

Implementations

impl ClientRequest

pub fn into_watch_servers(self) -> Option<ClientWatchServersResponder>

pub fn into_watch_address(self) -> Option<ClientWatchAddressResponder>

pub fn into_watch_prefixes(self) -> Option<ClientWatchPrefixesResponder>

pub fn into_shutdown(self) -> Option<ClientShutdownResponder>

pub fn method_name(&self) -> &'static str

Name of the method defined in FIDL

Trait Implementations

impl Debug for ClientRequest

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

Formats the value using the given formatter.