Rust

Send StringBuilder Contents over a Socket

Demonstrates Socket.SendSb, which encodes the contents of a StringBuilder using StringCharset and sends the resulting bytes.

Background. Text send and receive operations encode and decode bytes using the StringCharset property. For plain ASCII or UTF-8 protocols, setting StringCharset to utf-8 is a safe default.

Chilkat Rust Downloads

Download Chilkat for Rust

Rust


let socket = chilkat::Socket::new();

// Connect to the server using TLS.  The 3rd argument enables the TLS handshake after the TCP
// connection succeeds; the 4th is the maximum time to wait, in milliseconds.
let b_tls = true;
let max_wait_ms = 5000;
if socket.connect("example.com", 5000, b_tls, max_wait_ms).is_err() {
    println!("{}", socket.last_error_text());
    return;
}

// StringCharset controls the character encoding used when sending and receiving text.
socket.set_string_charset("utf-8");

// Build the text to send in a StringBuilder, then send its contents.
let sb = chilkat::StringBuilder::new();
let _ = sb.append("SET temperature 21\r\n");

if socket.send_sb(&sb).is_err() {
    println!("{}", socket.last_error_text());
    return;
}

println!("Message sent.");