OBJECT_HEADER_TO_HANDLE_REVOCATION_INFO

INT64 __fastcall OBJECT_HEADER_TO_HANDLE_REVOCATION_INFO(INT64 a1){
  INT64 *v1; 
  INT64 result; 
  if( (*(_BYTE *)(a1 + 26) & 0x40) == 0 )
    return 0i64;
  v1 = (INT64 *)(a1 - *((unsigned __int8 *)ObpInfoMaskToOffset + (*(_BYTE *)(a1 + 26) & 0x7F)));
  result = *v1;
  if( !*(_BYTE *)(*v1 + 24) )
    return 0i64;
  return result;
}

Referenced by:

ObHandleRevocationBlockAddObject
ObpCreateHandle
ObpProcessRemoveObjectQueue