Beispiel #1
0
        //Enters reader mode and if it found same valid tuple it enters write mode to remove it
        public TupleClass takeLeader(TupleClass tuple, int term)
        {
            tupleSpaceLock.EnterUpgradeableReadLock();
            try {
                TupleClass res = new TupleClass();
                foreach (TupleClass el in tupleSpace)
                {
                    if (el.Matches(tuple))
                    {
                        tupleSpaceLock.EnterWriteLock();
                        try {
                            TakeEntry entry = new TakeEntry(tuple, term, getLogIndex(), "take");
                            addEntrytoLog(entry);
                            res = el;
                            tupleSpace.Remove(el);
                            Console.WriteLine("Operation: Took " + res.ToString() + "\n");
                            return(res);
                        }
                        finally {
                            tupleSpaceLock.ExitWriteLock();
                        }
                    }
                }

                Console.WriteLine("Operation: Took " + res.ToString() + "\n");
                return(res); //no match
            }
            finally
            {
                tupleSpaceLock.ExitUpgradeableReadLock();
            }
        }
Beispiel #2
0
        public override TupleClass take(TupleClass tuple, string url, long nonce)
        {
            TupleClass realTuple = _server.readLeader(tuple, false)[0];
            TakeEntry  entry     = new TakeEntry(tuple, _term, _server.getLogIndex(), "take");

            //arranjar lock para o log e tuplespace(?)
            _server.addEntrytoLog(entry);

            timer.Interval = wait;
            pulseAppendEntry();

            return(_server.takeLeader(tuple));
        }