// checks for old locks, and removes them
public void Tick()
{
ArrayList RemovedLocks = new ArrayList();
foreach (DictionaryEntry entry in locks)
{
LockInfo lockinfo = (LockInfo)entry.Value;
if (lockinfo.Timestamp.Subtract(DateTime.Now).Milliseconds > LockTimeoutSeconds * 1000)
{
NetworkInterfaces.IReplicated targetobject = lockinfo.TargetObject;
if (IsMaster)
{
object clientconnection = lockinfo.Requester;
new LockRpcToClient(clientconnection).LockReleased(
clientconnection, targetobject);
}
else
{
ILockConsumer requester = (ILockConsumer)lockinfo.Requester;
new LockRpcToServer(null).ReleaseLock(
this, targetobject);
}
RemovedLocks.Add(lockinfo.TargetObject);
}
}
for (int i = 0; i < RemovedLocks.Count; i++)
{
locks.Remove(RemovedLocks[i]);
}
}
// if we are master, we can grant lock if available, then signal requester immediately
// otherwise we makes async rpc request to server
public void RequestLock(ILockConsumer requester, NetworkInterfaces.IReplicated targetobject)
{
if (ismaster)
{
bool lockgranted = _MasterRequestLock(requester, targetobject);
requester.LockResponse(this, new LockRequestEventArgs(targetobject, lockgranted));
}
else
{
if (((LockInfo)locks[targetobject]).Requester == requester)
{
requester.LockResponse(this, new LockRequestEventArgs(targetobject, true));
}
else if (locks[targetobject] != null)
{
requester.LockResponse(this, new LockRequestEventArgs(targetobject, false));
}
else
{
pendingrpcrequests.Add(new object[] { requester, targetobject });
new LockRpcToServer(null).ReleaseLock(null, targetobject);
}
}
}
// if we are master, we can grant lock if available, then signal requester immediately
// otherwise we makes async rpc request to server
public void RequestLock(ILockConsumer requester, NetworkInterfaces.IReplicated targetobject)
{
if( ismaster )
{
bool lockgranted = _MasterRequestLock( requester, targetobject);
requester.LockResponse( this, new LockRequestEventArgs( targetobject, lockgranted ) );
}
else
{
if( ((LockInfo)locks[ targetobject ]).Requester == requester )
{
requester.LockResponse( this, new LockRequestEventArgs( targetobject, true ) );
}
else if( locks[ targetobject ] != null )
{
requester.LockResponse( this, new LockRequestEventArgs( targetobject, false ) );
}
else
{
pendingrpcrequests.Add( new object[]{ requester, targetobject } );
new LockRpcToServer( null ).ReleaseLock( null, targetobject );
}
}
}
