/// <summary>
/// Trace debug information for specified PInvoke calls.
/// </summary>
/// <param name="filter"></param>
/// <param name="moduleName">Module name</param>
/// <param name="pinvokeName"></param>
/// <param name="callerName"></param>
/// <param name="returnValue"></param>
/// <param name="errorReturnValue"></param>
/// <param name="args"></param>
/// <returns></returns>
internal static PInvokeDebugInfo TraceDebugInfo(PInvokeCaptureFilters filter, string moduleName, string pinvokeName, string callerName, object returnValue, object errorReturnValue, params object[] args)
{
PInvokeDebugInfo debugInfo = SetupDebugInfo(filter, moduleName, pinvokeName, callerName, returnValue, args);
// check if type of returnValue is NTSTATUS
if (returnValue is NTSTATUS)
{
NTSTATUS status = (NTSTATUS)returnValue;
if (status.IsError() || status.IsWarning())
{
if (filter.HasFlag(PInvokeCaptureFilters.ErrorCode))
{
debugInfo.ErrorCode = (int)status;
}
if (filter.HasFlag(PInvokeCaptureFilters.ErrorDescription))
{
debugInfo.ErrorDescription = PInvokeDebugger.TranslateError((int)returnValue, ModuleManager.NtDll);
}
debugInfo.IsWarning = status.IsWarning();
debugInfo.IsError = status.IsError();
}
}
else
{
if (returnValue == errorReturnValue && returnValue != null)
{
int errorCode = Marshal.GetLastWin32Error();
if (filter.HasFlag(PInvokeCaptureFilters.ErrorCode))
{
debugInfo.ErrorCode = errorCode;
}
if (filter.HasFlag(PInvokeCaptureFilters.ErrorDescription))
{
debugInfo.ErrorDescription = PInvokeDebugger.TranslateError(errorCode);
}
debugInfo.IsError = true;
}
}
return(debugInfo);
}
private static PInvokeDebugInfo SetupDebugInfo(PInvokeCaptureFilters filter, string moduleName, string pinvokeName, string callerName, object returnValue, params object[] args)
{
string moduleInfo = filter.HasFlag(PInvokeCaptureFilters.ModuleName) ? moduleName : InfoNotTraced;
string pinvokeInfo = filter.HasFlag(PInvokeCaptureFilters.PInvokeName) ? pinvokeName : InfoNotTraced;
string callerInfo = filter.HasFlag(PInvokeCaptureFilters.CallerName) ? callerName : InfoNotTraced;
object returnValueInfo = filter.HasFlag(PInvokeCaptureFilters.ReturnValue) ? returnValue : InfoNotTraced;
PInvokeDebugInfo debugInfo = new PInvokeDebugInfo {
ModuleName = moduleInfo,
PInvokeName = pinvokeInfo,
CallerName = callerInfo,
ReturnValue = returnValueInfo
};
if (filter.HasFlag(PInvokeCaptureFilters.Parameters))
{
if (args == null)
{
throw new ArgumentNullException(nameof(args));
}
if (args.Length % 2 != 0)
{
throw new ArgumentException(SR.GetString("SR_InvalidParameterArgsLength"));
}
Dictionary <string, object> parameters = new Dictionary <string, object>();
for (int i = 0; i < args.Length; i += 2)
{
string paramName = (string)args[i];
object paramValue = args[i + 1];
parameters[paramName] = paramValue;
}
debugInfo.Parameters = parameters;
}
return(debugInfo);
}