38 lines
1.4 KiB
C++
38 lines
1.4 KiB
C++
// Copyright 2014 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_MACHINE_ID_PROVIDER_H_
|
|
#define COMPONENTS_METRICS_MACHINE_ID_PROVIDER_H_
|
|
|
|
#include <string>
|
|
|
|
namespace metrics {
|
|
|
|
// Provides machine characteristics used as a machine id. The implementation is
|
|
// platform specific. GetMachineId() must be called on a thread which allows
|
|
// I/O. GetMachineId() must not be called if HasId() returns false on this
|
|
// platform.
|
|
class MachineIdProvider {
|
|
public:
|
|
MachineIdProvider() = delete;
|
|
MachineIdProvider(const MachineIdProvider&) = delete;
|
|
MachineIdProvider& operator=(const MachineIdProvider&) = delete;
|
|
|
|
// Returns true if this platform provides a non-empty GetMachineId(). This is
|
|
// useful to avoid an async call to GetMachineId() on platforms with no
|
|
// implementation.
|
|
static bool HasId();
|
|
|
|
// Get a string containing machine characteristics, to be used as a machine
|
|
// id. The implementation is split into Windows and non-Windows. The former
|
|
// returns the drive serial number and the latter returns the hardware
|
|
// model name. Should not be called if HasId() returns false.
|
|
// The return value should not be stored to disk or transmitted.
|
|
static std::string GetMachineId();
|
|
};
|
|
|
|
} // namespace metrics
|
|
|
|
#endif // COMPONENTS_METRICS_MACHINE_ID_PROVIDER_H_
|