Perl

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.

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Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

my $socket = Chilkat2::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.
my $bTls = 1;
my $maxWaitMs = 5000;
my $success = $socket->Connect('example.com', 5000, $bTls, $maxWaitMs);
if (!$success) {
    print $socket->LastErrorText, "\n";
    exit;
}

# StringCharset controls the character encoding used when sending and receiving text.
$socket->StringCharset('utf-8');

# Build the text to send in a StringBuilder, then send its contents.
my $sb = Chilkat2::StringBuilder->new;
$sb->Append("SET temperature 21\r\n");

$success = $socket->SendSb($sb);
if (!$success) {
    print $socket->LastErrorText, "\n";
    exit;
}

print "Message sent.\n";