예제 #1
0
        private void Initialize(BinaryReader Reader, long CmdPtr)
        {
            int Word0 = Reader.ReadInt32();
            int Word1 = Reader.ReadInt32();

            Type = (IpcMessageType)(Word0 & 0xffff);

            int PtrBuffCount  = (Word0 >> 16) & 0xf;
            int SendBuffCount = (Word0 >> 20) & 0xf;
            int RecvBuffCount = (Word0 >> 24) & 0xf;
            int XchgBuffCount = (Word0 >> 28) & 0xf;

            int  RawDataSize   = (Word1 >> 0) & 0x3ff;
            int  RecvListFlags = (Word1 >> 10) & 0xf;
            bool HndDescEnable = ((Word1 >> 31) & 0x1) != 0;

            if (HndDescEnable)
            {
                HandleDesc = new IpcHandleDesc(Reader);
            }

            for (int Index = 0; Index < PtrBuffCount; Index++)
            {
                PtrBuff.Add(new IpcPtrBuffDesc(Reader));
            }

            void ReadBuff(List <IpcBuffDesc> Buff, int Count)
            {
                for (int Index = 0; Index < Count; Index++)
                {
                    Buff.Add(new IpcBuffDesc(Reader));
                }
            }

            ReadBuff(SendBuff, SendBuffCount);
            ReadBuff(ReceiveBuff, RecvBuffCount);
            ReadBuff(ExchangeBuff, XchgBuffCount);

            RawDataSize *= 4;

            long RecvListPos = Reader.BaseStream.Position + RawDataSize;

            long Pad0 = GetPadSize16(Reader.BaseStream.Position + CmdPtr);

            Reader.BaseStream.Seek(Pad0, SeekOrigin.Current);

            int RecvListCount = RecvListFlags - 2;

            if (RecvListCount == 0)
            {
                RecvListCount = 1;
            }
            else if (RecvListCount < 0)
            {
                RecvListCount = 0;
            }

            RawData = Reader.ReadBytes(RawDataSize);

            Reader.BaseStream.Seek(RecvListPos, SeekOrigin.Begin);

            for (int Index = 0; Index < RecvListCount; Index++)
            {
                RecvListBuff.Add(new IpcRecvListBuffDesc(Reader));
            }
        }