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// 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 "base/base_paths.h"
#include "base/bind.h"
#include "base/callback.h"
#include "base/files/file_path.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/metrics/histogram_macros.h"
#include "base/path_service.h"
#include "base/task_scheduler/post_task.h"
#include "base/task_scheduler/task_traits.h"
#include "base/threading/thread_restrictions.h"
#include "base/time/time.h"
namespace metrics {
DriveMetricsProvider::DriveMetricsProvider(int local_state_path_key)
: local_state_path_key_(local_state_path_key), weak_ptr_factory_(this) {}
DriveMetricsProvider::~DriveMetricsProvider() {}
void DriveMetricsProvider::ProvideSystemProfileMetrics(
metrics::SystemProfileProto* system_profile_proto) {
auto* hardware = system_profile_proto->mutable_hardware();
FillDriveMetrics(metrics_.app_drive, hardware->mutable_app_drive());
FillDriveMetrics(metrics_.user_data_drive,
hardware->mutable_user_data_drive());
}
void DriveMetricsProvider::GetDriveMetrics(const base::Closure& done_callback) {
base::PostTaskWithTraitsAndReplyWithResult(
FROM_HERE,
{base::MayBlock(), base::TaskPriority::BACKGROUND,
base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN},
base::Bind(&DriveMetricsProvider::GetDriveMetricsOnBackgroundThread,
local_state_path_key_),
base::Bind(&DriveMetricsProvider::GotDriveMetrics,
weak_ptr_factory_.GetWeakPtr(), done_callback));
}
DriveMetricsProvider::SeekPenaltyResponse::SeekPenaltyResponse()
: success(false) {}
// static
DriveMetricsProvider::DriveMetrics
DriveMetricsProvider::GetDriveMetricsOnBackgroundThread(
int local_state_path_key) {
base::ThreadRestrictions::AssertIOAllowed();
DriveMetricsProvider::DriveMetrics metrics;
QuerySeekPenalty(base::FILE_EXE, &metrics.app_drive);
QuerySeekPenalty(local_state_path_key, &metrics.user_data_drive);
return metrics;
}
// static
void DriveMetricsProvider::QuerySeekPenalty(
int path_service_key,
DriveMetricsProvider::SeekPenaltyResponse* response) {
DCHECK(response);
base::FilePath path;
if (!PathService::Get(path_service_key, &path))
return;
base::TimeTicks start = base::TimeTicks::Now();
response->success = HasSeekPenalty(path, &response->has_seek_penalty);
UMA_HISTOGRAM_TIMES("Hardware.Drive.HasSeekPenalty_Time",
base::TimeTicks::Now() - start);
UMA_HISTOGRAM_BOOLEAN("Hardware.Drive.HasSeekPenalty_Success",
response->success);
if (response->success) {
UMA_HISTOGRAM_BOOLEAN("Hardware.Drive.HasSeekPenalty",
response->has_seek_penalty);
}
}
void DriveMetricsProvider::GotDriveMetrics(
const base::Closure& done_callback,
const DriveMetricsProvider::DriveMetrics& metrics) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
metrics_ = metrics;
done_callback.Run();
}
void DriveMetricsProvider::FillDriveMetrics(
const DriveMetricsProvider::SeekPenaltyResponse& response,
metrics::SystemProfileProto::Hardware::Drive* drive) {
if (response.success)
drive->set_has_seek_penalty(response.has_seek_penalty);
}
} // namespace metrics
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