CkPython
CkPython
Check Whether a Socket Is Writable
See more Socket/SSL/TLS Examples
Demonstrates Socket.CheckWriteable, which waits for the connected socket to become writable. It returns 1 if writable, 0 if it did not become writable before the timeout, or -1 on error.
Background. A maxWaitMs of 0 performs a nonblocking poll. This is useful for flow control before attempting a large send.
Chilkat CkPython Downloads
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()
# Wait up to 5 seconds for the socket to become writable. Returns 1 if writable, 0 if it did not
# become writable before the timeout, or -1 on error.
writable = socket.CheckWriteable(5000)
if (writable < 0):
print(socket.lastErrorText())
sys.exit()
if (writable != 1):
print("The socket did not become writable before the timeout.")
sys.exit()
print("The socket is writable.")