Esempio n. 1
0
        /// <summary>
        /// Call the coordinator to proceed with transaction commit
        /// </summary>
        /// <returns></returns>
        public static bool TxCommit()
        {
            bool isCommited = false;

            if (TransactionId > 0)
            {
                int[] uidArray = padIntUids.ToArray();
                if (HasAnyServerFreezed(uidArray))
                {
                    AsyncOperation commit         = new AsyncOperation(coordinator.Commit);
                    AsyncCallback  commitCallback = new AsyncCallback(AsyncCommitCallBack);
                    IAsyncResult   RemAr          = commit.BeginInvoke(TransactionId, uidArray, commitCallback, null);
                    Console.WriteLine("Commit delays due to the freezed server.");
                }
                else
                {
                    isCommited = coordinator.Commit(TransactionId, uidArray);
                    Console.WriteLine("Transaction commit status is " + isCommited);
                }
            }
            else
            {
                Console.WriteLine("Server stabilization in progress");
            }
            return(isCommited);
        }
Esempio n. 2
0
        /// <summary>
        /// Call coordinator to abort the transaction
        /// </summary>
        /// <returns></returns>
        public static bool TxAbort()
        {
            //TODO: abort the transaction. Call coordinator's abort method. The implementation is similar to commit.
            bool isAborted = false;

            try
            {
                if (TransactionId > 0)
                {
                    if (padIntUids.Count() > 0)
                    {
                        int[] uidArray = padIntUids.ToArray();
                        if (HasAnyServerFreezed(uidArray))
                        {
                            AsyncOperation abort         = new AsyncOperation(coordinator.AbortTxn);
                            AsyncCallback  abortCallback = new AsyncCallback(AsyncAbortCallBack);
                            IAsyncResult   RemAr         = abort.BeginInvoke(TransactionId, uidArray, abortCallback, null);
                            Console.WriteLine("Abort delays due to the freezed server.");
                        }
                        else
                        {
                            isAborted = coordinator.AbortTxn(TransactionId, uidArray);
                        }
                    }
                    else
                    {
                        Console.WriteLine("No UID has been manipulated to abort.");
                    }
                }
                else
                {
                    Console.WriteLine("Server stabilization in progress");
                }
            }
            catch (Exception ex)
            {
                Common.Logger().LogError(ex.Message, ex.StackTrace, ex.Source);
                Console.WriteLine("Default abort is not executed.");
            }
            return(isAborted);
        }
        /// <summary>
        /// Runs the method asynchronously. Return immediately.
        /// </summary>
        /// <param name="parameters">parameters for the method (delegate)  </param>
        public void RunAsync(object[] parameters)
        {
            AsyncCallback callBack = new AsyncCallback(MyAsyncCallback);

            m_asyncoperation_internal.BeginInvoke(parameters, null, null);
        }