writeline
Syntax
Description
Examples
Write Line of ASCII Data from 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 from the server to the client by writing it to the server
object. The writeline
function automatically appends the terminator to the data.
writeline(server,"hello")
Write another string of ASCII data with the terminator automatically appended.
writeline(server,"world")
Since the client is connected to the server, the data you write is available in the client. Read a string of ASCII data from the client
object. The readline
function returns data until it reaches a terminator.
readline(client)
ans = "hello"
Read a string of ASCII data again to return the second string.
readline(client)
ans = "world"
Input Arguments
t
— TCP/IP server
tcpserver
object
TCP/IP server, specified as a tcpserver
object.
Example: writeline(t,data)
writes ASCII data to the TCP/IP client
connected to the server t
.
data
— ASCII data
character vector | string scalar
ASCII data to write, specified as a character vector or string scalar of text.
Example: writeline(t,"helloworld")
writes the ASCII data
"helloworld"
.
Data Types: char
| string
Version History
Introduced in R2021a
See Also
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