Beispiel #1
0
        public MMFServer()
        {
            MMF_SEND_OFFSET = 0;
            MMF_SEND_SIZE = sizeof(int) + Marshal.SizeOf(typeof(MMFServerBlock));
            MMF_RECEIVE_OFFSET = MMF_SEND_SIZE;
            MMF_RECEIVE_SIZE = sizeof(int) + Marshal.SizeOf(typeof(MMFClientBlock));
            MMF_CAPACITY_SIZE = MMF_RECEIVE_SIZE + MMF_SEND_SIZE;

            _mmf = MemoryMappedFile.CreateOrOpen(MMFDefine.MAP_NAME, MMF_CAPACITY_SIZE, MemoryMappedFileAccess.ReadWrite);
            this.ServerBlock = new MMFServerBlock();
            this.ClientBlock = new MMFClientBlock();
            _mutex = new Mutex(false, MMFDefine.MUTEX_NAME);
            ModulesFactory.FlowControlHelper.GetFlowControl("MMF").AddFlowBase(new FlowBase("MMF_Blinding", FlowAction));
        }
Beispiel #2
0
 private void Blinding()
 {
     if (_mutex.WaitOne(new TimeSpan(100)))
     {
         try
         {
             using (MemoryMappedViewStream streamReader = _mmf.CreateViewStream(MMF_RECEIVE_OFFSET, MMF_RECEIVE_SIZE))
             {
                 using (BinaryReader reader = new BinaryReader(streamReader))
                 {
                     int len = reader.ReadInt32();
                     if (len > 0)
                     {
                         if (len != (MMF_RECEIVE_SIZE - sizeof(int)))
                         {
                             throw new Exception("接收結構大小與MMF分配容量不符");
                         }
                         this.ClientBlock = (MMFClientBlock)MarshalEx.BytesToStuct(reader.ReadBytes(len), typeof(MMFClientBlock));
                     }
                 }
             }
             using (MemoryMappedViewStream streamWriter = _mmf.CreateViewStream(MMF_SEND_OFFSET, MMF_SEND_SIZE))
             {
                 using (BinaryWriter writer = new BinaryWriter(streamWriter))
                 {
                     byte[] data = MarshalEx.StructToBytes(this.ServerBlock);
                     if (data.Length > (MMF_SEND_SIZE - sizeof(int)))
                     {
                         throw new Exception("傳送結構大小大於MMF分配容量");
                     }
                     writer.Write(data.Length);
                     writer.Write(data);
                 }
             }
         }
         catch (Exception ex)
         {
             OnErrorRaised(ex);
         }
         finally
         {
             _mutex.ReleaseMutex();
         }
     }
 }