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import os
import subprocess
import threading
import socket
from . import binary_conversion
HEADER = 2048
PORT = 6011
SERVER = 'localhost'
ADDR = (SERVER, PORT)
FORMAT = 'utf-8'
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind(ADDR)
class Dialogue:
def __init__(self, file_name):
self.file_name = file_name
self.file_path = os.path.join(os.getcwd(), file_name)
self.ext = file_name.split('.')[-1]
self.conn = None
self.addr = None
self.active = False
def execute_context_script(self):
context_file = __file__.replace('__init__.py', 'context_script.r')
subprocess.run(
f'Rscript {context_file}',
cwd = os.getcwd(),
start_new_session = True
)
def establish_connection(self):
server.listen()
self.conn, self.addr = server.accept()
def launch_and_connect(self):
self._connect = threading.Thread(target=self.establish_connection)
self._launch = threading.Thread(target=self.execute_context_script)
self._connect.start()
self._launch.start()
self._connect.join()
self.send(self.file_path)
data = self.recv()
data = binary_conversion.convert_from_binary(data, type('s'))
self.active = (data == 'TRUE')
def open(self, wait = True):
self._open = threading.Thread(target=self.launch_and_connect)
if wait: self._open.run()
else: self._open.start()
def send(self, data):
bin_data = reversed(data)
bin_data = "".join(bin_data)
bin_data = binary_conversion.convert_to_binary(bin_data)
self.conn.send(bin_data)
def recv(self):
data = self.conn.recv(HEADER)
while data == b'\x00':
data = self.conn.recv(HEADER)
return data
def import_variable(self, var_name):
self.send(var_name)
val = self.recv()
val = binary_conversion.convert_from_binary(val, type('s'))
return val
def evaluate_expression(self, expr):
pass
def disconnect_and_close(self):
self.send('!DISCONNECT')
self._launch.join()
self.conn.close()
self.active = False
def close(self, wait = True):
self._close = threading.Thread(target=self.disconnect_and_close)
if wait: self._close.run()
else: self._close.start()
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