def run(self):
start = time.time()
while time.time() - start < 30:
sd = linda.connect(self.serverport)
if sd:
sd = linda.getSD()
break
time.sleep(1)
if time.time() - start >= 30:
print "Unable to connect to server. The Monitor is exiting."
return
linda.send(sd, ("MONITOR", ))
linda.recv(sd)
while True:
try:
self.realrun(sd)
break
except:
print "Caught exception"
raise
print "Monitor shutting down..."
linda.disconnect()
def doCommand(self, sd, command):
global keyboard_interrupt
if command is None:
return
elif command[0] == "quit":
return True
elif command[0] == "list":
linda.send(sd, ("LIST_TS", ))
r = linda.recv(sd)
print "TupleSpaces: " + " ".join(eval(r[2]))
elif command[0] == "inspect":
ts = self.eval(command[1])
if not isinstance(ts, linda.TupleSpace):
print "'%s' is not a tuplespace." % (ts, )
return
linda.send(sd, ("INSPECT", ts._id))
r = linda.recv(sd)
if r[1] == "DONT_KNOW":
print "The local server does not have a partition of %s" % (ts._id, )
return
elif r[1] != "RESULT_TUPLE" or not isinstance(r[2], tuple) or len(r[2]) != 5:
print "Invalid reply: '%s'" % (r, )
return
r = r[2]
print "References:", [x for x in eval(r[0].string) if x != linda.process_id] + ["Monitor" for x in eval(r[0].string) if x == linda.process_id]
print "Threads Blocked:", eval(r[1].string)
print "Servers Blocked:", eval(r[4].string)
print "Partitions", eval(r[3].string)
print "Tuples:", r[2].string
print ""
elif command[0] == "details":
print "Node Id:", server.node_id
elif command[0] == "route":
linda.send(sd, ("GET_ROUTES", ))
cons = linda.recv(sd)
if len(cons[2]) == 0:
print "No other servers connected"
else:
for c in cons[2]:
if len(c) == 3:
print "%s -> %s:%s" % (c[0], c[1], c[2])
else:
print "%s -> %s" % (c[0], c[1])
elif command[0] == "watch":
if command[1] is None:
delay = 10
else:
delay = min(0.1, command[1])
while True:
self.doCommand(command[2])
if keyboard_interrupt:
keyboard_interrupt = False
return
time.sleep(delay)
elif command[0] == "out":
ts = command[1]
tup = command[2]
if tup is None and ts[0] != "funccall":
raise SystemError, "Expected 'out TS TUPLE'."
elif tup is None:
tup = ts[2]
ts = ts[1]
ts = self.eval(ts)
tup = self.eval(tup)
if not isinstance(ts, linda.TupleSpace):
raise SystemError, "'%s' is not a tuplespace" % (ts, )
if not isinstance(tup, tuple):
raise SystemError, "'%s' is not a tuple" % (tup, )
ts._out(tup)
elif command[0] == "expr":
print self.eval(command[1])
elif command[0] == "help":
print "Possible commands..."
print "list - Print list of all tuplespaces on the server"
print "inspect <tsid> - List the tuples in the given tuplespace"
print "watch <delay> <command> - Repeat the given command every <delay> seconds.\n If left out <delay> defaults to 10."
print "quit - Shut down the server."
else:
raise SystemError, "Unknown command %s" % (command, )
