BtcFrameSplitter class Models

Splits a byte stream into frames separated by a delimiter, buffering across chunk boundaries so a frame may span several reads. The delimiter is stripped from the emitted frames.

RFCOMM (like any stream transport) does not preserve message boundaries. A single input event may contain part of a line, several lines, or a line split mid-way. This transformer reassembles delimiter-terminated frames.

connection.input
    .transform(const BtcFrameSplitter()) // default delimiter: '\n'
    .listen((frame) => print('line: ${utf8.decode(frame)}'));

A trailing, un-terminated remainder is not emitted. Framing waits for the delimiter. If maxFrameLength is set and the buffer grows past it before a delimiter arrives, the stream emits a StateError and drops the buffer (a guard against a missing delimiter growing memory without bound).

Inheritance

• Object
• StreamTransformerBase<Uint8List, Uint8List>
• BtcFrameSplitter

Constructors

BtcFrameSplitter({List<int> delimiter = const [0x0A], int? maxFrameLength})

Creates a splitter that breaks input on delimiter (default: \n).

const

Properties

delimiter → List<int>

The byte sequence that separates frames.

final

hashCode → int

The hash code for this object.

no setter, inherited

maxFrameLength → int?

Optional cap on the buffered (un-terminated) bytes before erroring.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

bind(Stream<Uint8List> stream) → Stream<Uint8List>

Transforms the provided stream.

override

cast<RS, RT>() → StreamTransformer<RS, RT>

Provides a StreamTransformer<RS, RT> view of this stream transformer.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited