1 // Copyright (c) 2012 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 CHROME_BROWSER_STORAGE_MONITOR_UDEV_UTIL_LINUX_H_ 6 #define CHROME_BROWSER_STORAGE_MONITOR_UDEV_UTIL_LINUX_H_ 7 8 #include <libudev.h> 9 10 #include <string> 11 12 #include "base/memory/scoped_ptr.h" 13 14 namespace base { 15 class FilePath; 16 } 17 18 // Deleter for ScopedUdevObject. 19 struct UdevDeleter { 20 void operator()(struct udev* udev); 21 }; 22 typedef scoped_ptr<struct udev, UdevDeleter> ScopedUdevObject; 23 24 // Deleter for ScopedUdevDeviceObject(). 25 struct UdevDeviceDeleter { 26 void operator()(struct udev_device* device); 27 }; 28 typedef scoped_ptr<struct udev_device, UdevDeviceDeleter> 29 ScopedUdevDeviceObject; 30 31 // Wrapper function for udev_device_get_property_value() that also checks for 32 // valid but empty values. 33 std::string GetUdevDevicePropertyValue(struct udev_device* udev_device, 34 const char* key); 35 36 // Helper for udev_device_new_from_syspath()/udev_device_get_property_value() 37 // pair. |device_path| is the absolute path to the device, including /sys. 38 bool GetUdevDevicePropertyValueByPath(const base::FilePath& device_path, 39 const char* key, 40 std::string* result); 41 42 #endif // CHROME_BROWSER_STORAGE_MONITOR_UDEV_UTIL_LINUX_H_ 43