private static AddressDoubleVqt[] toAddressAddressDoubleVqts(IntPtr pData, int iDataLength, int iParamCount)
{
//int double int long == 24
if (iDataLength < iParamCount * 24)
{
return(null);
}
//byte[] bs = new byte[iDataLength];
//Marshal.Copy(pData, bs, 0, iDataLength);
AddressDoubleVqt[] values = new AddressDoubleVqt[iParamCount];
long lTemp;
int iOffset = 0;
for (int i = 0; i < iParamCount; i++)
{
values[i].address = Marshal.ReadInt32(pData, iOffset); iOffset += 4;
lTemp = Marshal.ReadInt64(pData, iOffset); iOffset += 8; values[i].value = BitConverter.Int64BitsToDouble(lTemp);
values[i].quality = Marshal.ReadInt32(pData, iOffset); iOffset += 4;
long dt = Marshal.ReadInt64(pData, iOffset); iOffset += 8;
if (dt > MinMsepoch && dt < MaxMsepoch)
{
values[i].datetime = msepochToDateTime(dt);
}
}
//ptr = (IntPtr)(((long)ptr) + perf_object_type.TotalByteLength);
return(values);
}
//new at 20160510 by oudream
//读实时数据以散列方式：遥测、模拟量
//* @param inOutYc ：输入与输出结构体，输入时存放有Mid字段值，即 address；输出时带有查询结果数据信息
//* @return ： 0：什么都没发生，函数空白； >0 ：表示成功读了多少个；； <0 ：表示错误；
public static int GetAddressDoubleVqt(ref AddressDoubleVqt inOutYc)
{
//byte[] datas = new byte[vqt.Length * 24];
int r = 0;
int iMidCount = 1;
int iDataLength = iMidCount * 24;
IntPtr pnt = IntPtr.Zero;
pnt = Marshal.AllocHGlobal(iDataLength);
int iOffset = 0;
try
{
long lTemp;
Marshal.WriteInt32(pnt, iOffset, inOutYc.address); iOffset += 4;
lTemp = BitConverter.DoubleToInt64Bits(inOutYc.value);
Marshal.WriteInt64(pnt, iOffset, lTemp); iOffset += 8;
Marshal.WriteInt32(pnt, iOffset, inOutYc.quality); iOffset += 4;
Marshal.WriteInt64(pnt, iOffset, getMsepoch(inOutYc.datetime)); iOffset += 8;
r = gci_realtime_data_get_list(0x0101021C, pnt, iDataLength, iMidCount, IntPtr.Zero);
if (r > 0)
{
AddressDoubleVqt[] ycs = toAddressAddressDoubleVqts(pnt, iDataLength, iMidCount);
if (ycs != null && ycs.Length > 0)
{
inOutYc = ycs[0];
}
}
}
finally
{
Marshal.FreeHGlobal(pnt);
}
return(r);
}
