private static void ThrowError(NISwitchExecutiveHandle handle, int code, string errorMessagePrefix = null)
{
int codeFromGetError;
string errorString = GetError(handle, out codeFromGetError);
throw new DriverException(errorString, code);
}
public static NISwitchExecutiveHandle CreateFromCHandle(IntPtr handle, bool ownsHandle)
{
NISwitchExecutiveHandle switchHandle = new NISwitchExecutiveHandle(ownsHandle);
switchHandle.SetHandle(handle);
return(switchHandle);
}
internal static bool HasErrorClearIfDoes(NISwitchExecutiveHandle handle, int status)
{
bool hasError = HasError(status);
if (hasError)
{
ClearError(handle);
}
return(hasError);
}
private static string GetError(NISwitchExecutiveHandle handle, out int errorCode)
{
int size = 0;
niSE_GetError(handle, out errorCode, null, out size);
var msg = new StringBuilder();
if (size > 0)
{
msg.Capacity = size;
niSE_GetError(handle, out errorCode, msg, out size);
}
return(msg.ToString());
}
private static extern int niSE_OpenSession(string resourceName, string options, out NISwitchExecutiveHandle instrumentHandle);
private static extern int niSE_GetError(NISwitchExecutiveHandle vi, out int errorCode, StringBuilder errorDescription, out int errorDescriptionBufferSize);
private static extern int niSE_GetAllConnections(NISwitchExecutiveHandle vi, StringBuilder routeSpec, out int routeSpecSize);
private static extern int niSE_ExpandRouteSpec(NISwitchExecutiveHandle vi, string spec, ExpandOptions expandOptions, StringBuilder expandedRouteSpec, out int expandedRouteSpecSize);
private static extern int niSE_IsConnected(NISwitchExecutiveHandle vi, string spec, out ushort isConnected);
private static extern int niSE_ConnectAndDisconnect(NISwitchExecutiveHandle vi, string connectSpec, string disconnectSpec, long multiconnectMode, long operationOrder, ushort waitForDebounce);
private static extern int niSE_DisconnectAll(NISwitchExecutiveHandle vi);
private static extern int niSE_Disconnect(NISwitchExecutiveHandle vi, string spec);
private static extern int niSE_Connect(NISwitchExecutiveHandle vi, string connectSpec, long multiconnectMode, ushort waitForDebounce);
private NISwitchExecutive(NISwitchExecutiveHandle sessionHandle, string resourceName, string options)
{
_sessionHandle = sessionHandle;
_resourceName = resourceName;
}
internal static void ClearError(NISwitchExecutiveHandle handle)
{
int notUsed;
GetError(handle, out notUsed);
}