readMessage method - RawSocket class - dart:io library (original) (raw)

readMessage abstract method

1. @Since("2.15")

SocketMessage? readMessage([

1. int? count ])

Reads a message containing up to count bytes from the socket.

This function differs from read in that it will also return anySocketControlMessage that have been sent.

This function is non-blocking and will only return data if data is available. The number of bytes read can be less than count if fewer bytes are available for immediate reading. Length of data buffer in SocketMessage indicates number of bytes read.

Returns null if no data is available.

Unsupported by RawSecureSocket.

Unsupported on Android, Fuchsia, Windows.

Implementation

@Since("2.15")
SocketMessage? readMessage([int? count]);