fn new_power_level_broker() -> PowerLevelBroker {
    let notify_fn: PowerLevelChangeFn = Box::new(|power_level, responder| {
        match responder.send(*power_level) {
            Ok(()) => true, // indicates that the client was successfully updated
            Err(e) => {
                error!("Failed to send power level to client: {}", e);
                false
            }
        }
    });
    hanging_get::HangingGet::new(u64::MAX, notify_fn)
}
/// Convenience function to create a new `PowerLevelBroker` instance.
///
/// The broker is used to vend new `PowerLevelPublisher` and `PowerLevelSubscriber` instances.
///
/// When `PowerLevelPublisher.set()` is called with a power level value, then all pending `Watch`
/// requests registered with a corresponding `PowerLevelSubscriber` (see the `spawn_watcher_handler`
/// function) will be completed with that value, regardless of whether that value differs from the
/// previous power level that was sent to the client. Therefore, care should be taken to only call
/// `PowerLevelPublisher.set()` when the power level value has actually changed in order to properly
/// implement the hanging-get behavior.
Convenience function to create a new `PowerLevelBroker` instance.
The broker is used to vend new `PowerLevelPublisher` and `PowerLevelSubscriber` instances.


Convenience function to create a new ` PowerLevelBroker ` instance . The broker is used to vend new ` PowerLevelPublisher ` and ` PowerLevelSubscriber ` instances .
fn new_power_level_broker() -> PowerLevelBroker {
    let notify_fn: PowerLevelChangeFn = Box::new(|power_level, responder| {
        match responder.send(*power_level) {
            Ok(()) => true, // indicates that the client was successfully updated
            Err(e) => {
                error!("Failed to send power level to client: {}", e);
                false
            }
        }
    });
    hanging_get::HangingGet::new(u64::MAX, notify_fn)
}
fn new_power_level_broker ( ) -> PowerLevelBroker { let notify_fn : PowerLevelChangeFn = Box :: new ( | power_level , responder | { match responder . send ( * power_level ) { Ok ( ( ) ) => true , // indicates that the client was successfully updated Err ( e ) => { error ! ( " " e ) ; false } } } ) ; hanging_get :: HangingGet :: new ( u64 :: MAX , notify_fn ) }
Convenience function to create a new `PowerLevelBroker` instance.
Convenience function to create a new ` PowerLevelBroker ` instance .