Perl

Receive Text from a Socket into a StringBuilder

Demonstrates Socket.ReceiveSb, which receives text, decodes it using StringCharset, and appends it to a StringBuilder.

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');
# Send a request using a simple application-defined text protocol in which each message ends with a
# CRLF.
my $command = "STATUS\r\n";
$success = $socket->SendString($command);
if (!$success) {
    print $socket->LastErrorText, "\n";
    exit;
}

# Receive text and append it to a StringBuilder, decoding using StringCharset.
my $sb = Chilkat2::StringBuilder->new;
$success = $socket->ReceiveSb($sb);
if (!$success) {
    print $socket->LastErrorText, "\n";
    exit;
}

my $responseText = $sb->GetAsString();
if (!$sb->LastMethodSuccess) {
    print $sb->LastErrorText, "\n";
    exit;
}

print $responseText, "\n";