readline
Read line of ASCII string data sent to TCP/IP server
Syntax
Description
Examples
Read Line of ASCII Data Sent to TCP/IP Server
Create a TCP/IP server that listens for connections at localhost
and port 4000.
server = tcpserver("localhost",4000)
server = TCPServer with properties: ServerAddress: "127.0.0.1" ServerPort: 4000 Connected: 0 ClientAddress: "" ClientPort: [] NumBytesAvailable: 0 Show all properties, functions
Create a TCP/IP client to connect to your server object using tcpclient
. You must specify the same IP address and port number you use to create server
.
client = tcpclient("localhost",4000)
client = tcpclient with properties: Address: 'localhost' Port: 4000 NumBytesAvailable: 0 Show all properties, functions
Check the default ASCII terminator for the server.
server.Terminator
ans = "LF"
Set the terminators for both the server and client to "CR"
. The TCP/IP server and its connected client must have the same terminator.
configureTerminator(server,"CR") configureTerminator(client,"CR")
Write a string of ASCII data to the client. The writeline
function automatically appends the terminator to the data.
writeline(client,"First message.")
Write another string of ASCII data with the terminator automatically appended.
writeline(client,"Second message.")
Since the client is connected to the server, the data you send to the client is available to be read from the server. Read a string of ASCII data received by the server from the client. The readline
function returns data until it reaches a terminator.
readline(server)
ans = "First message."
Read a string of ASCII data again to return the second string.
readline(server)
ans = "Second message."
Input Arguments
t
— TCP/IP server
tcpserver
object
TCP/IP server, specified as a tcpserver
object.
Example: readline(t)
reads ASCII data sent to the TCP/IP server
t
from the client connected to it.
Version History
Introduced in R2021a
See Also
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