Enum WatcherRequest

pub enum WatcherRequest {
    Watch {
        responder: WatcherWatchResponder,
    },
}

Observer protocol for changes to packet filtering state (addition, deletion, and updates to filtering resources).

Variants

Watch

Hanging get for filtering resource changes.

Clients should only have one pending call of this method outstanding at a time; a second call to this method while a call is already pending will cause the server to close the channel.

The first N events returned by this method will be [Event.existing], enumerating all existing N filtering resources, followed by a single [Event.idle] indicating that all existing resources have been sent. Subsequent calls will immediately return with new events if there is at least one to be reported, or will otherwise block until an event occurs.

In order to communicate atomic updates, after the initial state is provided followed by [Event.idle], a sequence of events that occurred atomically will always be followed by [Event.end_of_update], demarcating the end of the atomic update.

Note that each non-sentinel event is scoped to a controller; the ControllerId is provided along with the event to allow the client to disambiguate.

Fields

responder: WatcherWatchResponder

Implementations

impl WatcherRequest

pub fn into_watch(self) -> Option<WatcherWatchResponder>

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

Name of the method defined in FIDL

Trait Implementations

impl Debug for WatcherRequest

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

Formats the value using the given formatter.