Function SK_Input_GetDeviceFileAndState

src/input/hid.cpp:391–433

static concurrency::concurrent_unordered_set <HANDLE>                      SK_Input_DeviceFiles;

std::tuple <SK_Input_DeviceFileType, void*, bool>
SK_Input_GetDeviceFileAndState (HANDLE hFile)
{
  // Unnecessary for now, since we only use a single list of HID
  //   devices...
#ifdef SK_HAS_DIFFERENT_DEVICE_CLASSES
  // Bloom filter since most file reads -are not- for input devices
  if ( SK_Input_DeviceFiles.find (hFile) ==
       SK_Input_DeviceFiles.cend (     ) )
  {
    return
      { SK_Input_DeviceFileType::None, nullptr, true };
  }
#endif

  //
  // Figure out device type
  //
  if ( const auto hid_iter  = SK_HID_DeviceFiles.find (hFile);
                  hid_iter != SK_HID_DeviceFiles.cend (     ) )
  {
    auto& hid_device =
          hid_iter->second;

    if (hid_device.device_type != sk_input_dev_type::Other)
    {
      return
        { SK_Input_DeviceFileType::HID, &hid_device, hid_device.isInputAllowed () };
    }
  }

#ifdef SK_HAS_DIFFERENT_DEVICE_CLASSES
  else if ( const auto nv_iter  = SK_NVIDIA_DeviceFiles.find (hFile);
                       nv_iter != SK_NVIDIA_DeviceFiles.cend (     ) )
  {
    return
      { SK_Input_DeviceFileType::NVIDIA, &nv_iter->second, true };
  }
#endif

  return
    { SK_Input_DeviceFileType::Invalid, nullptr, true };
}

SetupDiGetClassDevsW_pfn             SK_SetupDiGetClassDevsW             = nullptr;
SetupDiGetClassDevsExW_pfn           SK_SetupDiGetClassDevsExW           = nullptr;