def processVote(self):
# if length is three it checks for the commit and then send accordingly.
if len(self.votes) == 3:
commit = True
for i in self.votes:
if i == 'ABORT':
commit = False
# if commit then send global_commit to server and then server broadcast it.
if commit:
glocal_commit = "GLOBAL_COMMIT"
f = open('coordinator.txt', 'a+')
f.write(self.string_to_wtite + '\n')
f.close()
self.voteResult = glocal_commit
self.msg_list.insert(tk.END, glocal_commit)
encoded_msg = ClientHelper().encodemessage(glocal_commit)
self.network_thread.send_to_server(encoded_msg)
# if aborts then send global_abort to server and then server broadcast it.
else:
glocal_abort = "GLOBAL_ABORT"
self.voteResult = glocal_abort
self.msg_list.insert(tk.END, glocal_abort)
encoded_msg = ClientHelper().encodemessage(glocal_abort)
self.network_thread.send_to_server(encoded_msg)
self.votes = []
def on_closing():
"""This function is to be called when the window is closed."""
# ask to close the application.
if tkinter.messagebox.askokcancel("Quit", "Do you really wish to quit?"):
top.destroy()
encoded_message = ClientHelper().encodemessage('has left the chat.')
client_socket.send(encoded_message.encode())
client_socket.close()
else:
pass
def send(event=None): # event is passed by binders.
"""Handles sending of messages."""
msg = my_msg.get()
my_msg.set("") # Clears input field
encoded_message = ClientHelper().encodemessage(msg)
client_socket.send(encoded_message.encode())
if msg == "quit":
client_socket.close()
top.destroy()
top.quit()
def abort(self):
abort_message = "ABORT"
# append to the screen of tkinter.
self.msg_list.insert(tk.END, abort_message)
# encode message
aborted_message = ClientHelper().encodemessage(abort_message)
# send message to server.
self.network_thread.send_to_server(aborted_message)
def timeout(self):
if not self.voteResult:
glocal_abort = "GLOBAL_ABORT"
self.voteResult = glocal_abort
self.msg_list.insert(tk.END, glocal_abort)
encoded_msg = ClientHelper().encodemessage(glocal_abort)
self.network_thread.send_to_server(encoded_msg)
self.votes = []
def commit(self):
commit_message = "COMMIT"
# self.string = commit_message
# append to the screen of tkinter.
f = open('client.txt', 'a+')
f.write(self.string_to_commit + '\n')
f.close()
self.msg_list.insert(tk.END, commit_message)
# encode message
commited_message = ClientHelper().encodemessage(commit_message)
# send message to server.
self.network_thread.send_to_server(commited_message)
def send(self, event=None):
# take a string message.
string = self.my_msg.get()
self.string_to_wtite = string
# encode dtring in HTTP format.
encoded_msg = ClientHelper().encodemessage(string)
# print('encoded message from client: ', encoded_msg)
# add at the end of the chatbox.
self.msg_list.insert(tk.END, string)
# print('type of connect.client_socket.send(encoded_msg.encode())',tcpClientA.send(encoded_msg.encode()))
self.network_thread.send_to_server(encoded_msg)
Timer(CLIENT_TIME_OUT, self.timeout).start()