// Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "components/metrics/drive_metrics_provider.h" #include #include #include #include "base/files/file.h" #include "base/files/file_path.h" namespace metrics { // static bool DriveMetricsProvider::HasSeekPenalty(const base::FilePath& path, bool* has_seek_penalty) { std::vector components = path.GetComponents(); base::File volume(base::FilePath(L"\\\\.\\" + components[0]), base::File::FLAG_OPEN); if (!volume.IsValid()) return false; STORAGE_PROPERTY_QUERY query = {}; query.QueryType = PropertyStandardQuery; query.PropertyId = StorageDeviceSeekPenaltyProperty; DEVICE_SEEK_PENALTY_DESCRIPTOR result; DWORD bytes_returned; BOOL success = DeviceIoControl( volume.GetPlatformFile(), IOCTL_STORAGE_QUERY_PROPERTY, &query, sizeof(query), &result, sizeof(result), &bytes_returned, nullptr); if (success == FALSE || bytes_returned < sizeof(result)) return false; *has_seek_penalty = result.IncursSeekPenalty != FALSE; return true; } } // namespace metrics