public string ReadStatus()
{
String str = String.Empty;
if (_opcserver == null)
{
return("OPC Server Not Connected");
}
try
{
// FIXME : status is a memory leak this memory must be freed!
SERVERSTATUS status = _opcserver.GetServerStatus();
LogMessage(sOPCProgId + "\n" + status.ToString(), Logger.DEBUG);
//pStatus = System.Runtime.InteropServices.(status, typeof(SERVERSTATUS));
//Marshal.DestroyStructure(pStatus, typeof(SERVERSTATUS));
//Marshal.FreeCoTaskMem(pStatus);
}
catch (Exception e)
{
str = "ReadStatus Error: " + e.Message;
throw new Exception(str);
}
finally
{
}
return(str);
}
internal static SERVERSTATUS GetServerStatus(ref IntPtr pInput, bool deallocate)
{
SERVERSTATUS output = new SERVERSTATUS();;
if (pInput != IntPtr.Zero)
{
tagOPCSERVERSTATUS status = (tagOPCSERVERSTATUS)Marshal.PtrToStructure(pInput, typeof(tagOPCSERVERSTATUS));
output.szVendorInfo = status.szVendorInfo;
output.ProductVersion = String.Format("{0}.{1}.{2}", status.wMajorVersion, status.wMinorVersion, status.wBuildNumber);
output.eServerState = (OPCSERVERSTATE)status.dwServerState;
output.StatusInfo = null;
if (output.eServerState == OPCSERVERSTATE.OPC_STATUS_RUNNING)
{
output.StatusInfo = "OPC_STATUS_RUNNING";
}
else if (output.eServerState == OPCSERVERSTATE.OPC_STATUS_FAILED)
{
output.StatusInfo = "OPC_STATUS_FAILED";
}
else if (output.eServerState == OPCSERVERSTATE.OPC_STATUS_NOCONFIG)
{
output.StatusInfo = "OPC_STATUS_NOCONFIG";
}
else if (output.eServerState == OPCSERVERSTATE.OPC_STATUS_SUSPENDED)
{
output.StatusInfo = "OPC_STATUS_SUSPENDED";
}
else if (output.eServerState == OPCSERVERSTATE.OPC_STATUS_TEST)
{
output.StatusInfo = "OPC_STATUS_TEST";
}
long fileT = (((long)status.ftCurrentTime.dwHighDateTime) << 32) + status.ftCurrentTime.dwLowDateTime;
//output.StartTime = DateTime.FromFileTime(fileT);
output.CurrentTime = DateTime.FromFileTime(fileT);
//output.LastUpdateTime = DateTime.FromFileTime(fileT);
if (deallocate)
{
Marshal.DestroyStructure(pInput, typeof(tagOPCSERVERSTATUS));
Marshal.FreeCoTaskMem(pInput);
pInput = IntPtr.Zero;
}
}
return(output);
}
internal static SERVERSTATUS GetServerStatus(ref IntPtr pInput, bool deallocate)
{
SERVERSTATUS output = new SERVERSTATUS();;
if (pInput != IntPtr.Zero)
{
tagOPCSERVERSTATUS status = (tagOPCSERVERSTATUS)Marshal.PtrToStructure(pInput, typeof(tagOPCSERVERSTATUS));
output.szVendorInfo = status.szVendorInfo;
output.ProductVersion = String.Format("{0}.{1}.{2}", status.wMajorVersion, status.wMinorVersion, status.wBuildNumber);
output.eServerState = (OPCSERVERSTATE)status.dwServerState;
output.StatusInfo = null;
if(output.eServerState == OPCSERVERSTATE.OPC_STATUS_RUNNING ) output.StatusInfo= "OPC_STATUS_RUNNING";
else if(output.eServerState == OPCSERVERSTATE.OPC_STATUS_FAILED ) output.StatusInfo= "OPC_STATUS_FAILED";
else if(output.eServerState == OPCSERVERSTATE.OPC_STATUS_NOCONFIG ) output.StatusInfo= "OPC_STATUS_NOCONFIG";
else if(output.eServerState == OPCSERVERSTATE.OPC_STATUS_SUSPENDED ) output.StatusInfo= "OPC_STATUS_SUSPENDED";
else if(output.eServerState == OPCSERVERSTATE.OPC_STATUS_TEST ) output.StatusInfo= "OPC_STATUS_TEST";
long fileT = (((long)status.ftCurrentTime.dwHighDateTime) << 32) + status.ftCurrentTime.dwLowDateTime;
//output.StartTime = DateTime.FromFileTime(fileT);
output.CurrentTime = DateTime.FromFileTime(fileT);
//output.LastUpdateTime = DateTime.FromFileTime(fileT);
if (deallocate)
{
Marshal.DestroyStructure(pInput, typeof(tagOPCSERVERSTATUS));
Marshal.FreeCoTaskMem(pInput);
pInput = IntPtr.Zero;
}
}
return output;
}
