Ruby

Receive a 32-bit Integer from a Socket

Demonstrates Socket.ReceiveInt32, which reads exactly four bytes as a signed 32-bit integer and stores the result in the ReceivedInt property. Byte order is selectable.

Background. Fixed-size integers and length prefixes are common building blocks for application-defined binary protocols. Byte order is selectable, with big-endian being network byte order.

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Ruby

require 'chilkat'

success = false

socket = Chilkat::CkSocket.new()

#  Connect to the server using TLS.
bTls = true
maxWaitMs = 5000
success = socket.Connect("example.com",5000,bTls,maxWaitMs)
if (success == false)
    print socket.lastErrorText() + "\n";
    exit
end

#  Read exactly four bytes as a signed 32-bit integer and store the result in the ReceivedInt
#  property.  The argument selects byte order (true = big-endian, network byte order).
bBigEndian = true
success = socket.ReceiveInt32(bBigEndian)
if (success == false)
    print socket.lastErrorText() + "\n";
    exit
end

print "Received 32-bit integer: " + socket.get_ReceivedInt().to_s() + "\n";