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 #include "chrome/browser/storage_monitor/udev_util_linux.h" 6 7 #include "base/files/file_path.h" 8 9 void UdevDeleter::operator()(struct udev* udev) { 10 udev_unref(udev); 11 } 12 13 void UdevDeviceDeleter::operator()(struct udev_device* device) { 14 udev_device_unref(device); 15 } 16 17 std::string GetUdevDevicePropertyValue(struct udev_device* udev_device, 18 const char* key) { 19 const char* value = udev_device_get_property_value(udev_device, key); 20 return value ? value : std::string(); 21 } 22 23 bool GetUdevDevicePropertyValueByPath(const base::FilePath& device_path, 24 const char* key, 25 std::string* result) { 26 ScopedUdevObject udev(udev_new()); 27 if (!udev.get()) 28 return false; 29 ScopedUdevDeviceObject device(udev_device_new_from_syspath( 30 udev.get(), device_path.value().c_str())); 31 if (!device.get()) 32 return false; 33 *result = GetUdevDevicePropertyValue(device.get(), key); 34 return true; 35 } 36
