Struct Controller 

pub struct Controller { /* private fields */ }

Message send controller object.

Because of features such as external message injection and implicit message sending from message boxes, it must be possible to send a message to associated receiveers without explicitly requiring a send object to exist in the graph. The message::send::Controller is intended as a central dispatcher for all sent messages, delivering a message to all associated receiveers without requiring the existence of a send object.

It can deliver messages via the usual receive_message() function, where the inlet index identifies a receiver name. The index for a receiver name can be determined with get_name_index(). This is useful for messages that must be scheduled in the global message queue and must then be dispatched via the receive_message() function.

Alternatively, a message can be sent to receivers using receive_message() with name and message arguments (instead of inlet index and message). Messages sent using this alternative will be sent right away (avoiding the message queue).

Implementations

impl Controller

pub fn new() -> Self

Create a new message::send::Controller

pub fn receiver_exists(&self, receiver_name: &str) -> bool

Returns true if a receiver by that name is already registered, or false otherwise.

pub fn get_name_index(&self, receiver_name: &str) -> Option<Index>

Returns the index to which the given receiver name is referenced. Used with receive_message(usize, &pd::Message<_>).

pub fn receive_message<'pd, N>( &mut self, context: &mut Context<'pd>, name: &str, message: &Message<'pd, N>, )

where N: ArrayLength<Atom<'pd>>,

Sends the message on to all receivers with the given name

pub fn send_message<'pd, N>( &mut self, context: &mut Context<'pd>, outlet_index: Index, message: &Message<'pd, N>, )

where N: ArrayLength<Atom<'pd>>,

Send a message to the given outlet index

pub fn add_receiver( &mut self, receiver: RemoteMessageReceiver, ) -> Result<(), Error>

Add a receiver to this send controller

pub fn remove_receiver(&mut self, receiver: RemoteMessageReceiver)

Remove a receiver from this send controller

pub fn register_external_receiver(&mut self, receiver_name: &str)

Register an external message receiver with this send controller

pub fn unregister_external_receiver(&mut self, _receiver_name: &str)

Unregister an external message receiver from this send controller

Trait Implementations

impl Clone for Controller

fn clone(&self) -> Controller

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Controller

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

Formats the value using the given formatter.

impl Default for Controller

fn default() -> Self

Returns the “default value” for a type.