CkPython

Send BinData Contents over a Socket

Demonstrates Socket.SendBd, which sends bytes from a BinData beginning at an offset. A numBytes of 0 sends from the offset through the end of the data.

Background. The BinData receive methods accumulate raw bytes in a BinData object. A single receive returns only what is currently available, whereas the counted receive waits for an exact number of bytes.

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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()

#  Place some bytes into a BinData to be sent.
bd = chilkat.CkBinData()
bd.AppendString("message payload","utf-8")

#  Send bytes from the BinData starting at the given offset.  A numBytes of 0 sends from the offset
#  through the end of the data.
success = socket.SendBd(bd,0,0)
if (success == False):
    print(socket.lastErrorText())
    sys.exit()

print("Sent " + str(bd.get_NumBytes()) + " bytes.")