System.Net.ConnectionPool.GetFromPool C# (CSharp) Method

        private PooledStream GetFromPool(object owningObject) {
            PooledStream res = null;
            GlobalLog.Enter("ConnectionPool#" + ValidationHelper.HashString(this) + "::GetFromPool");
            res = (PooledStream) m_StackNew.Pop();
            if (null == res) {
                res = (PooledStream) m_StackOld.Pop();
            }

            // Shouldn't be null, we could assert here.
            GlobalLog.Assert(res != null, "GetFromPool called with nothing in the pool!");

            if (null != res) {
                res.PostPop(owningObject);
                GlobalLog.Print("GetFromGeneralPool pooledStream#"+ValidationHelper.HashString(res));
            }

            GlobalLog.Leave("ConnectionPool#" + ValidationHelper.HashString(this) + "::GetFromPool",ValidationHelper.HashString(res));
            return(res);
        }