print("Connected. Now chatting...")
except Exception as e:
# Print the exception message
print(e)
# Exit with a non-zero value, to indicate an error condition
exit(1)
"""
Surround the following code in a try-except block to account for
socket errors as well as errors related to user input. Ideally
these error conditions should be handled separately.
"""
try:
# Loop until either the server closes the connection or the user requests termination
while True:
# First, read data from keyboard and send to server
bytes_sent = keyboard_to_socket(cli_sock)
if bytes_sent == 0:
print("User-requested exit.")
break
# Then, read data from server and print on screen
bytes_read = socket_to_screen(cli_sock, srv_addr_str)
if bytes_read == 0:
print("Server closed connection.")
break
finally:
"""
If an error occurs or the server closes the connection, call close() on the
connected socket to release the resources allocated to it by the OS.
"""
cli_sock, cli_addr = srv_sock.accept()
cli_addr_str = str(cli_addr) # Translate the client address to a string (to be used shortly)
print("Client " + cli_addr_str + " connected. Now chatting...")
# Loop until either the client closes the connection or the user requests termination
# INNER LOOP FOR DATA EXCHANGE
while True:
# First, read data from client and print on screen
bytes_read = socket_to_screen(cli_sock, cli_addr_str)
if bytes_read == 0:
print("Client closed connection.")
break
# Then, read data from user and send to client
bytes_sent = keyboard_to_socket(cli_sock) #Returns none if successful, this is only here to check if it has been set to 0
if bytes_sent == 0:
print("User-requested exit.")
break
finally:
"""
If an error occurs or the client closes the connection, call close() on the
connected socket to release the resources allocated to it by the OS.
"""
cli_sock.close()
# Close the server socket as well to release its resources back to the OS
srv_sock.close()
# Exit with a zero value, to indicate success