Enum WatcherRequest

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

Observer protocol for changes to network interfaces (addition, deletion, and interface property changes).

Variants

Watch

Hanging get for an interface addition/deletion change.

Clients should only have one call of this method at a time; a second call to this method while a call is already pending will cause the server end of the protocol to be closed.

If there are N interfaces present at the time the server end of the protocol is initialized, then the first N invocations of this method will return [Event.existing] followed by a single [Event.idle] indicating that all existing interfaces have been sent. Subsequent calls will immediately return if there is a change to be reported, or block until a change occurs.

The server may choose to coalesce property change events, e.g. when multiple independent property changes occur. As a result, clients cannot assume that the order in which they observe the interface changes is the order in which the changes occurred.

• response event the interface change event.

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.