description

# controlPort property Null safety

SendPort controlPort
final

Control port used to send control messages to the isolate.

The control port identifies the isolate.

An `Isolate` object allows sending control messages through the control port.

Some control messages require a specific capability to be passed along with the message (see pauseCapability and terminateCapability), otherwise the message is ignored by the isolate.

## Implementation

    final SendPort controlPort