device/udev_linux/scoped_udev.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef DEVICE_UDEV_LINUX_SCOPED_UDEV_H_
   6 #define DEVICE_UDEV_LINUX_SCOPED_UDEV_H_
   7
   8 #include <libudev.h>
   9
  10 #include "base/memory/scoped_ptr.h"
  11
  12 #if !defined(USE_UDEV)
  13 #error "USE_UDEV not defined"
  14 #endif
  15
  16 namespace device {
  17
  18 struct UdevDeleter {
  19   void operator()(udev* dev) const {
  20     udev_unref(dev);
  21   }
  22 };
  23 struct UdevEnumerateDeleter {
  24   void operator()(udev_enumerate* enumerate) const {
  25     udev_enumerate_unref(enumerate);
  26   }
  27 };
  28 struct UdevDeviceDeleter {
  29   void operator()(udev_device* device) const {
  30     udev_device_unref(device);
  31   }
  32 };
  33 struct UdevMonitorDeleter {
  34   void operator()(udev_monitor* monitor) const {
  35     udev_monitor_unref(monitor);
  36   }
  37 };
  38
  39 typedef scoped_ptr<udev, UdevDeleter> ScopedUdevPtr;
  40 typedef scoped_ptr<udev_enumerate, UdevEnumerateDeleter> ScopedUdevEnumeratePtr;
  41 typedef scoped_ptr<udev_device, UdevDeviceDeleter> ScopedUdevDevicePtr;
  42 typedef scoped_ptr<udev_monitor, UdevMonitorDeleter> ScopedUdevMonitorPtr;
  43
  44 }  // namespace device
  45
  46 #endif  // DEVICE_UDEV_LINUX_SCOPED_UDEV_H_