2 files changed, 97 insertions, 7 deletions

diff --git a/launcher.py b/launcher.py
index 4798429..23e3000 100644
--- a/launcher.py
+++ b/launcher.py
@@ -1,25 +1,82 @@
 import os
-from subprocess import *
+import subprocess
 import threading
+import socket
+
+HEADER = 64
+PORT = 6011
+SERVER = 'localhost'
+ADDR = (SERVER, PORT)
+FORMAT = 'utf-8'
+DISCONNECT_MESSAGE = b'!DISSCONNECT'
+
+server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+server.bind(ADDR)
+
+def establish_connection(mutable = {}):
+	server.listen()
+	conn, addr = server.accept()
+	mutable['conn'] = conn
+	mutable['addr'] = addr
+	return conn, addr
+
+def send_msg(conn, msg):
+	data = bytes(msg, FORMAT)
+	data += b' ' * (HEADER - len(data))
+	conn.send(data)
+
+def recv_msg(conn):
+	msg = conn.recv(HEADER).strip()
+	return msg
+
+def terminate_connection(conn):
+	conn.close()
 
 def execute_source_file(file_name):
 	ext = file_name.split('.')
 	if ext[1] == 'py': cmd = 'Python'
 	elif ext[1] == 'r': cmd = 'RScript'
-	run(
+
+	subprocess.run(
 		f'{cmd} {file_name}',
 		cwd = os.getcwd(),
 		start_new_session = True
 		)
 
-src_fil_py = threading.Thread(target=execute_source_file, args=['source_file.py'])
-src_fil_r = threading.Thread(target=execute_source_file, args=['source_file.r'])
+def launch_and_connect(file_name, CONN):
+	mutable = {}
+	connect_ = threading.Thread(target=establish_connection, args=[mutable])
+	launch_ = threading.Thread(target=execute_source_file, args=[file_name])
 
-src_fil_r.start()
+	connect_.start()
+	launch_.start()
+	connect_.join()
+
+	conn = mutable['conn']
+	addr = mutable['addr']
+	CONN['conn'] = mutable['conn']
+	CONN['addr'] = mutable['addr']
+	return conn, addr
+
+def disconnect_and_close(file_name):
+	pass
+
+CONN_PY = {}
+src_fil_py = threading.Thread(target=launch_and_connect, args=['source_file.py', CONN_PY])
+#src_fil_r = threading.Thread(target=execute_source_file, args=['source_file.r'])
+
+#src_fil_r.start()
 src_fil_py.start()
 
-src_fil_r.join()
+#src_fil_r.join()
 src_fil_py.join()
+conn_py = CONN_PY['conn']
+
+msg = recv_msg(conn_py)
+print(msg)
+
+msg = "goodbye"
+send_msg(conn_py, msg)
 
 print("end launcher")
 
diff --git a/source_file.py b/source_file.py
index d55741a..9d10aed 100644
--- a/source_file.py
+++ b/source_file.py
@@ -1,3 +1,15 @@
+import socket
+
+HEADER = 64
+PORT = 6011
+SERVER = 'localhost'
+ADDR = (SERVER, PORT)
+FORMAT = 'utf-8'
+DISCONNECT_MESSAGE = b'!DISSCONNECT'
+
+CONN = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+CONN.connect(ADDR)
+
 def display_msg(msg):
     print(
         '\033[93m', 
@@ -6,6 +18,27 @@ def display_msg(msg):
         end='\033[0m\n'
     )
 
-msg = "hello world - Python"
+def send_msg(conn, msg):
+	data = bytes(msg, FORMAT)
+	data += b' ' * (HEADER - len(data))
+	conn.send(data)
+
+def recv_msg(conn):
+	msg = conn.recv(HEADER).strip()
+	msg = msg.decode(FORMAT)
+	return msg
+
+def terminate_connection(conn):
+	conn.close()
 
+
+msg = "Initializing Client - Python"
 display_msg(msg)
+
+msg = "Initialized Client - Python"
+send_msg(CONN, msg)
+
+msg = recv_msg(CONN)
+display_msg(msg)
+
+terminate_connection(CONN)
\ No newline at end of file