From: Cameron Patrick <cameron@ucc.gu.uwa.edu.au>
Date: Sun, 1 Aug 2004 06:30:41 +0000 (+0000)
Subject: new 'improved' (i.e. probably not working) code for rebooting dec server
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=2cbbcf280083a88aa882653d9b69f31948733036;p=zanchey%2Fdispense2.git

new 'improved' (i.e. probably not working) code for rebooting dec server
---

diff --git a/sql-edition/servers/LATClient.py b/sql-edition/servers/LATClient.py
index 7c21d0d..fa2b297 100644
--- a/sql-edition/servers/LATClient.py
+++ b/sql-edition/servers/LATClient.py
@@ -1,6 +1,6 @@
 from socket import *
 from select import select
-from os import popen
+from os import popen4
 from time import sleep
 
 LATCP_SOCKET = '/var/run/latlogin'
@@ -12,6 +12,28 @@ LATCP_CMD_ERRORMSG = 99
 
 class LATClientException(Exception): pass
 
+def read_for_a_bit(rfh):
+	message = ''
+	while 1:
+		r = select([rfh], [], [], 5.0)[0]
+		if r:
+			message = message + rfh.read(1)
+		else:
+			break
+	print "Received message: ", message
+	return message
+
+def write_expecting_echo(rfh, wfh, message):
+	print "Writing message:",message
+	while len(message) > 0:
+		wfh.write(message[0])
+		wfh.flush()
+		echo = rfh.read(1)
+		if echo != message[0]:
+			print "Gah, expected echo when writing", message[0]
+		message = message[1:]
+	print "  --> Sent and echoed."
+
 class LATClient:
 	def __init__(self, service = None, node = None, port = None,
 		     localport = None, password = None, is_queued = False,
@@ -70,14 +92,21 @@ class LATClient:
 	def reboot_server(self):
 		self.sock.shutdown(2)
 		self.sock.close()
-		mop = popen('/usr/sbin/moprc '+self.server_name, 'w')
-		mop.write('\n')
-		mop.write(self.connect_password+'\n')
-		mop.write('grim reaper\n')
-		mop.write('set priv\n')
-		mop.write(self.priv_password+'\n')
-		mop.write('init del 0\n')
-		mop.close()
+		mopw, mopr = popen4('/usr/sbin/moprc '+self.server_name)
+		write_expecting_echo(mopr, mopw, '\n')
+		read_for_a_bit(mopr)
+		write_expecting_echo(mopr, mopw, self.connect_password+'\n')
+		read_for_a_bit(mopr)
+		write_expecting_echo(mopr, mopw, 'grim reaper\n')
+		read_for_a_bit(mopr)
+		write_expecting_echo(mopr, mopw, 'set priv\n')
+		read_for_a_bit(mopr)
+		write_expecting_echo(mopr, mopw, self.priv_password+'\n')
+		read_for_a_bit(mopr)
+		write_expecting_echo(mopr, mopw, 'init del 0\n')
+		read_for_a_bit(mopr)
+		mopr.close()
+		mopw.close()
 		print
 		print "Waiting 10 seconds for DEC server to come back to life..."
 		sleep(10)