//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();
}
}
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));
}