CkPython

Send a 16-bit Integer over a Socket

Demonstrates Socket.SendInt16, which sends the low 16 bits of a value as a two-byte integer in the selected byte order.

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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CkPython

import sys
import chilkat

success = False

socket = chilkat.CkSocket()

#  Connect to the server using TLS.
bTls = True
maxWaitMs = 5000
success = socket.Connect("example.com",5000,bTls,maxWaitMs)
if (success == False):
    print(socket.lastErrorText())
    sys.exit()

#  Send the low 16 bits of the value as a two-byte integer.  Use True for network byte order
#  (big-endian) or False for little-endian.
bBigEndian = True
success = socket.SendInt16(1024,bBigEndian)
if (success == False):
    print(socket.lastErrorText())
    sys.exit()

print("16-bit integer sent.")