(Ruby) TCP Socket Send Byte and Receive Byte

Demonstrates the Chilkat Socket ReceiveByte and SendByte method.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

sock = Chilkat::CkSocket.new()

# --------------------------------------------------------------------
# This example uses the public TCP echo service at https://tcpbin.com/
# --------------------------------------------------------------------

useTls = false
port = 4242
maxWaitMs = 5000
success = sock.Connect("tcpbin.com",port,useTls,maxWaitMs)
if (success == false)
    print sock.lastErrorText() + "\n";
    exit
end

# Wait a max of 2 seconds for a response..
sock.put_MaxReadIdleMs(2000)

# Send a byte.
sock.SendByte(96)

# The tcpbin.com echo server only echoes after receiving an LF (linefeed char)
sock.SendByte(10)

# The echo server will echo back whatever is sent to it.
# We should be able to read the same byte back..
# After successfully reading, the byte value is available in the ReceivedInt property.
treatAsUnsignedInt = true
success = sock.ReceiveByte(treatAsUnsignedInt)
if (success == false)
    print sock.lastErrorText() + "\n";
    exit
end

# Let's look at the value of the byte received.  It should be 96.
print sock.get_ReceivedInt().to_s() + "\n";

# The echo server also echoed the LF back.
success = sock.ReceiveByte(treatAsUnsignedInt)
# Assuming success..

# Should be decimal 10.
print sock.get_ReceivedInt().to_s() + "\n";