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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_METRICS_ANDROID_METRICS_HELPER_H_
#define COMPONENTS_METRICS_ANDROID_METRICS_HELPER_H_
#include <string>
#include "base/component_export.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
namespace metrics {
namespace prefs {
constexpr char kVersionCodePref[] = "android_system_info.last_version_code";
}
// Whether 64-bit and/or 32-bit apps can be installed on this device/OS.
//
// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused. See CpuAbiBitnessSupport in enums.xml.
enum class CpuAbiBitnessSupport {
kNeither = 0,
k32bitOnly = 1,
k64bitOnly = 2,
k32And64bit = 3,
kMaxValue = k32And64bit,
};
// AndroidMetricsHelper is responsible for helping to log information related to
// system-level information about the Android device as well as the process.
class COMPONENT_EXPORT(METRICS) AndroidMetricsHelper {
public:
AndroidMetricsHelper(const AndroidMetricsHelper&) = delete;
AndroidMetricsHelper& operator=(const AndroidMetricsHelper&) = delete;
~AndroidMetricsHelper() = default;
static AndroidMetricsHelper* GetInstance();
static AndroidMetricsHelper* CreateInstanceForTest(
const std::string& version_code,
bool has_abilist32,
bool has_abilist64) {
return new AndroidMetricsHelper(version_code, has_abilist32, has_abilist64);
}
int version_code_int() const { return version_code_int_; }
CpuAbiBitnessSupport cpu_abi_bitness_support() const {
return cpu_abi_bitness_support_;
}
// |on_did_create_metrics_log| denotes whether data is emitted in
// OnDidCreateMetricsLog, as opposed to in ProvidePreviousSessionData.
void EmitHistograms(PrefService* local_state, bool on_did_create_metrics_log);
static void RegisterPrefs(PrefRegistrySimple* registry);
// Made public for testing.
static void SaveLocalState(PrefService* local_state, int version_code_int);
static void ResetGlobalStateForTesting() { local_state_saved_ = false; }
private:
friend struct AndroidMetricsHelperSingletonTraits;
AndroidMetricsHelper(const std::string& version_code,
bool has_abilist32,
bool has_abilist64);
int version_code_int_ = 0;
CpuAbiBitnessSupport cpu_abi_bitness_support_ =
CpuAbiBitnessSupport::kNeither;
static inline bool local_state_saved_ = false;
};
} // namespace metrics
#endif // COMPONENTS_METRICS_ANDROID_METRICS_HELPER_H_
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