/**
* After calling GetLastWin32Error(), it clears the last error field,
* so you must save the HResult and pass it to this method. This method
* will determine the appropriate exception to throw dependent on your
* error, and depending on the error, insert a string into the message
* gotten from the ResourceManager.
*/
internal void Win32Error(int errorCode, String str)
{
switch (errorCode)
{
case Win32Native.ERROR_ACCESS_DENIED:
if (str != null)
{
throw new UnauthorizedAccessException(Environment.GetResourceString("UnauthorizedAccess_RegistryKeyGeneric_Key", str));
}
else
{
throw new UnauthorizedAccessException();
}
case Win32Native.ERROR_INVALID_HANDLE:
/**
* For normal RegistryKey instances we dispose the SafeRegHandle and throw IOException.
* However, for HKEY_PERFORMANCE_DATA (on a local or remote machine) we avoid disposing the
* SafeRegHandle and only throw the IOException. This is to workaround reentrancy issues
* in PerformanceCounter.NextValue() where the API could throw {NullReference, ObjectDisposed, ArgumentNull}Exception
* on reentrant calls because of this error code path in RegistryKey
*
* Normally we'd make our caller synchronize access to a shared RegistryKey instead of doing something like this,
* however we shipped PerformanceCounter.NextValue() un-synchronized in v2.0RTM and customers have taken a dependency on
* this behavior (being able to simultaneously query multiple remote-machine counters on multiple threads, instead of
* having serialized access).
*/
if (!IsPerfDataKey())
{
hkey.SetHandleAsInvalid();
hkey = null;
}
goto default;
case Win32Native.ERROR_FILE_NOT_FOUND:
throw new IOException(Environment.GetResourceString("Arg_RegKeyNotFound"), errorCode);
default:
throw new IOException(Win32Native.GetMessage(errorCode), errorCode);
}
}
/**
* After calling GetLastWin32Error(), it clears the last error field,
* so you must save the HResult and pass it to this method. This method
* will determine the appropriate exception to throw dependent on your
* error, and depending on the error, insert a string into the message
* gotten from the ResourceManager.
*/
internal void Win32Error(int errorCode, string str)
{
switch (errorCode)
{
case Win32Native.ERROR_ACCESS_DENIED:
if (str != null)
{
throw new UnauthorizedAccessException(SR.Format(SR.UnauthorizedAccess_RegistryKeyGeneric_Key, str));
}
else
{
throw new UnauthorizedAccessException();
}
case Win32Native.ERROR_FILE_NOT_FOUND:
throw new IOException(SR.Arg_RegKeyNotFound, errorCode);
default:
throw new IOException(Win32Native.GetMessage(errorCode), errorCode);
}
}
