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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CRYPTO_UNEXPORTABLE_KEY_METRICS_H_
#define CRYPTO_UNEXPORTABLE_KEY_METRICS_H_
#include "crypto/crypto_export.h"
namespace crypto {
// Records UMA metrics of TPM availability, latency and successful usage.
// Does the work on a new background task.
CRYPTO_EXPORT void MaybeMeasureTpmOperations();
// internal namespace to be used by tests only
namespace internal {
// Note that values here are used in a recorded histogram. Don't change
// the values of existing members.
enum class TPMSupport {
kNone = 0,
kRSA = 1,
kECDSA = 2,
kMaxValue = 2,
};
// Note that values here are used in a recorded histogram. Don't change
// the values of existing members.
enum class TPMType {
kNone = 0,
kHW = 1,
kVirtual = 2,
kBoth = 3,
kMaxValue = 3,
};
// Exported for testing
CRYPTO_EXPORT void MeasureTpmOperationsInternalForTesting();
} // namespace internal
} // namespace crypto
#endif // CRYPTO_UNEXPORTABLE_KEY_METRICS_H_
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