Added main.py to run multiple paxoses

assignment2/main.py

+from audioop import add
+import subprocess
+import sys
+import signal
+import time
+
+# Can spawn multiple paxos server
+if __name__ == "__main__":
+    num_server = 2
+    # If they pass in num_server as argument
+    if len(sys.argv) == 2:
+        num_server = int(sys.argv[1])
+
+    HOST, PORT = "localhost", 9000
+    PORTSTART = 9000
+    PORTEND = PORTSTART + num_server - 1
+    processes = []
+
+    try:
+        for i in range(num_server):
+            proc = subprocess.Popen(["python3", "paxos.py", HOST, str(PORT + i), str(PORTSTART), str(PORTEND)])
+            processes.append(proc)
+        # Needed to sleep forever here until ctrl-c so we go into "finally" and kill processes
+        while True:
+            time.sleep(10)
+    finally:
+        for proc in processes:
+            # proc.send_signal(signal.SIGINT)
+            proc.kill()
\ No newline at end of file

assignment2/paxos.py

@@ -430,10 +430,13 @@ def send_msg(obj, dest_addr: Address):
 
 if __name__ == "__main__":
     HOST, PORT = sys.argv[1], int(sys.argv[2])
-    # addresses = ((HOST, PORT),)
-    addresses = ((HOST, 9000), (HOST, 9001))
-    # Create the server, binding to localhost on port 9999
+    PORTSTART, PORTEND = int(sys.argv[3]), int(sys.argv[4])
+
+    addresses = ()
+    for i in range(PORTSTART, PORTEND + 1):
+        addresses += ((HOST, i),)
 
+    # Create the server, binding to localhost on port 9999
     server = Paxos((HOST, PORT), addresses)
     # Activate the server; this will keep running until you
     # interrupt the program with Ctrl-C