Exemplo n.º 1
0
 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()
Exemplo n.º 2
0
 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, )