System.Runtime.Remoting.Contexts.Context.GetServerContextChain C# (CSharp) Method

        internal virtual IMessageSink GetServerContextChain()
        {
            if (_serverContextChain == null) 
            {
                // a bare chain would have just this one sink.
                IMessageSink newServerContextChain = ServerContextTerminatorSink.MessageSink;
    
                // now loop over properties to add some real sinks.
                Object prop = null;
                int iSink = _numCtxProps;
                while (iSink-- > 0) 
                {
                    // see if this property wants to contribute a ServerContextSink
                    // we have to start chaining in the reverse order
                    prop = _ctxProps[iSink];
                    IContributeServerContextSink sink = prop as IContributeServerContextSink;
                    if (null != sink )
                    {
                        // yes, chain the sink ahead of the chain of sinks constructed so far.
                        newServerContextChain = sink.GetServerContextSink( newServerContextChain);
                        if (newServerContextChain == null)
                        {
                            throw new RemotingException( 
                                Environment.GetResourceString(
                                    "Remoting_Contexts_BadProperty"));
                        }
                    }
                }
                lock (this)
                {  
                    if (_serverContextChain == null)
                    {
                        _serverContextChain = newServerContextChain;
                    }
                }
            }
            return _serverContextChain;
        }