description

# Socket class abstract interface

A TCP connection between two sockets.

A socket connection connects a local socket to a remote socket. Data, as Uint8Lists, is received by the local socket, made available by the Stream interface of this class, and can be sent to the remote socket through the IOSink interface of this class.

Transmission of the data sent through the IOSink interface may be delayed unless SocketOption.tcpNoDelay is set with Socket.setOption.

Implemented types
  - Stream<Uint8List>
  - IOSink
Implementers
  - SecureSocket

## Properties

address → InternetAddress
  The InternetAddress used to connect this socket.
  no setter
done → Future
  A future that will complete when the consumer closes, or when an error occurs.
  no setteroverride
encoding ↔ Encoding
  The Encoding used when writing strings.
  getter/setter pairinherited
first → Future<Uint8List>
  The first element of this stream.
  no setterinherited
hashCode → int
  The hash code for this object.
  no setterinherited
isBroadcast → bool
  Whether this stream is a broadcast stream.
  no setterinherited
isEmpty → Future<bool>
  Whether this stream contains any elements.
  no setterinherited
last → Future<Uint8List>
  The last element of this stream.
  no setterinherited
length → Future<int>
  The number of elements in this stream.
  no setterinherited
port → int
  The port used by this socket.
  no setter
remoteAddress → InternetAddress
  The remote InternetAddress connected to by this socket.
  no setter
remotePort → int
  The remote port connected to by this socket.
  no setter
runtimeType → Type
  A representation of the runtime type of the object.
  no setterinherited
single → Future<Uint8List>
  The single element of this stream.
  no setterinherited

## Methods

add(List<int> data) → void
  Adds byte `data` to the target consumer, ignoring encoding.
  inherited
addError(Object error, [StackTrace? stackTrace]) → void
  Unsupported operation on sockets.
  override
addStream(Stream<List<int>> stream) → Future
  Adds all elements of the given `stream`.
  inherited
any(bool test(Uint8List element)) → Future<bool>
  Checks whether `test` accepts any element provided by this stream.
  inherited
asBroadcastStream({void onListen(StreamSubscription<Uint8List> subscription)?, void onCancel(StreamSubscription<Uint8List> subscription)?}) → Stream<Uint8List>
  Returns a multi-subscription stream that produces the same events as this.
  inherited
asyncExpand<E>(Stream<E>? convert(Uint8List event)) → Stream<E>
  Transforms each element into a sequence of asynchronous events.
  inherited
asyncMap<E>(FutureOr<E> convert(Uint8List event)) → Stream<E>
  Creates a new stream with each data event of this stream asynchronously mapped to a new event.
  inherited
cast<R>() → Stream<R>
  Adapt this stream to be a `Stream<R>`.
  inherited
close() → Future
  Close the target consumer.
  override
contains(Object? needle) → Future<bool>
  Returns whether `needle` occurs in the elements provided by this stream.
  inherited
destroy() → void
  Destroys the socket in both directions.
distinct([bool equals(Uint8List previous, Uint8List next)?]) → Stream<Uint8List>
  Skips data events if they are equal to the previous data event.
  inherited
drain<E>([E? futureValue]) → Future<E>
  Discards all data on this stream, but signals when it is done or an error occurred.
  inherited
elementAt(int index) → Future<Uint8List>
  Returns the value of the `index`th data event of this stream.
  inherited
every(bool test(Uint8List element)) → Future<bool>
  Checks whether `test` accepts all elements provided by this stream.
  inherited
expand<S>(Iterable<S> convert(Uint8List element)) → Stream<S>
  Transforms each element of this stream into a sequence of elements.
  inherited
firstWhere(bool test(Uint8List element), {Uint8List orElse()?}) → Future<Uint8List>
  Finds the first element of this stream matching `test`.
  inherited
flush() → Future
  Returns a Future that completes once all buffered data is accepted by the underlying StreamConsumer.
  inherited
fold<S>(S initialValue, S combine(S previous, Uint8List element)) → Future<S>
  Combines a sequence of values by repeatedly applying `combine`.
  inherited
forEach(void action(Uint8List element)) → Future<void>
  Executes `action` on each element of this stream.
  inherited
getRawOption(RawSocketOption option) → Uint8List
  Reads low level information about the RawSocket.
handleError(Function onError, {bool test(dynamic error)?}) → Stream<Uint8List>
  Creates a wrapper Stream that intercepts some errors from this stream.
  inherited
join([String separator = ""]) → Future<String>
  Combines the string representation of elements into a single string.
  inherited
lastWhere(bool test(Uint8List element), {Uint8List orElse()?}) → Future<Uint8List>
  Finds the last element in this stream matching `test`.
  inherited
listen(void onData(Uint8List event)?, {Function? onError, void onDone()?, bool? cancelOnError}) → StreamSubscription<Uint8List>
  Adds a subscription to this stream.
  inherited
map<S>(S convert(Uint8List event)) → Stream<S>
  Transforms each element of this stream into a new stream event.
  inherited
noSuchMethod(Invocation invocation) → dynamic
  Invoked when a nonexistent method or property is accessed.
  inherited
pipe(StreamConsumer<Uint8List> streamConsumer) → Future
  Pipes the events of this stream into `streamConsumer`.
  inherited
reduce(Uint8List combine(Uint8List previous, Uint8List element)) → Future<Uint8List>
  Combines a sequence of values by repeatedly applying `combine`.
  inherited
setOption(SocketOption option, bool enabled) → bool
  Customizes the RawSocket.
setRawOption(RawSocketOption option) → void
  Customizes the RawSocket.
singleWhere(bool test(Uint8List element), {Uint8List orElse()?}) → Future<Uint8List>
  Finds the single element in this stream matching `test`.
  inherited
skip(int count) → Stream<Uint8List>
  Skips the first `count` data events from this stream.
  inherited
skipWhile(bool test(Uint8List element)) → Stream<Uint8List>
  Skip data events from this stream while they are matched by `test`.
  inherited
take(int count) → Stream<Uint8List>
  Provides at most the first `count` data events of this stream.
  inherited
takeWhile(bool test(Uint8List element)) → Stream<Uint8List>
  Forwards data events while `test` is successful.
  inherited
timeout(Duration timeLimit, {void onTimeout(EventSink<Uint8List> sink)?}) → Stream<Uint8List>
  Creates a new stream with the same events as this stream.
  inherited
toList() → Future<List<Uint8List>>
  Collects all elements of this stream in a List.
  inherited
toSet() → Future<Set<Uint8List>>
  Collects the data of this stream in a Set.
  inherited
toString() → String
  A string representation of this object.
  inherited
transform<S>(StreamTransformer<Uint8List, S> streamTransformer) → Stream<S>
  Applies `streamTransformer` to this stream.
  inherited
where(bool test(Uint8List element)) → Stream<Uint8List>
  Creates a new stream from this stream that discards some elements.
  inherited
write(Object? object) → void
  Converts `object` to a String by invoking Object.toString and adds the encoding of the result to the target consumer.
  inherited
writeAll(Iterable objects, [String separator = ""]) → void
  Iterates over the given `objects` and writes them in sequence.
  inherited
writeCharCode(int charCode) → void
  Writes the character of `charCode`.
  inherited
writeln([Object? object = ""]) → void
  Converts `object` to a String by invoking Object.toString and writes the result to `this`, followed by a newline.
  inherited

## Operators

operator ==(Object other) → bool
  The equality operator.
  inherited

## Static Methods

connect(dynamic host, int port, {dynamic sourceAddress, int sourcePort = 0, Duration? timeout}) → Future<Socket>
  Creates a new socket connection to the host and port and returns a Future that will complete with either a Socket once connected or an error if the host-lookup or connection failed.
startConnect(dynamic host, int port, {dynamic sourceAddress, int sourcePort = 0}) → Future<ConnectionTask<Socket>>
  Like connect, but returns a Future that completes with a ConnectionTask that can be cancelled if the Socket is no longer needed.