Function GetBootOrder

rEFIt_UEFI/Platform/BootOptions.cpp:337–369

Returns gEfiGlobalVariableGuid:BootOrder as UINT16 array and it's length (num of elements). * Caller is responsible for releasing BootOrder mem (FreePool()). */

 *  Caller is responsible for releasing BootOrder mem (FreePool()).
 */
EFI_STATUS
GetBootOrder (
    OUT UINT16          *BootOrder[],
    OUT UINTN           *BootOrderLen
    )
{
  UINTN               BootOrderSize;


  DBG("BootOrder:");
  //
  // Basic checks
  //
  if (BootOrder == NULL || BootOrderLen == NULL) {
    DBG(" EFI_INVALID_PARAMETER\n");
    return EFI_INVALID_PARAMETER;
  }

  //
  // Get gEfiGlobalVariableGuid:BootOrder and it's length
  //
  *BootOrder = (__typeof_am__(*BootOrder))GetNvramVariable(BOOT_ORDER_VAR, &gEfiGlobalVariableGuid, NULL, &BootOrderSize);
  if (*BootOrder == NULL) {
    DBG(" EFI_NOT_FOUND\n");
    return EFI_NOT_FOUND;
  }

  *BootOrderLen = BootOrderSize / sizeof(UINT16);

  PrintBootOrder(*BootOrder, *BootOrderLen);

  return EFI_SUCCESS;
}


/** Updates BootOrder by adding new boot option BootNumNew at index BootIndexNew. */