71 lines
2.8 KiB
C++
71 lines
2.8 KiB
C++
//
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// Copyright (C) 2015 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#ifndef UPDATE_ENGINE_METRICS_UTILS_H_
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#define UPDATE_ENGINE_METRICS_UTILS_H_
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#include "update_engine/connection_utils.h"
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#include "update_engine/metrics.h"
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namespace chromeos_update_engine {
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class SystemState;
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namespace metrics_utils {
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// Transforms a ErrorCode value into a metrics::DownloadErrorCode.
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// This obviously only works for errors related to downloading so if |code|
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// is e.g. |ErrorCode::kFilesystemCopierError| then
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// |kDownloadErrorCodeInputMalformed| is returned.
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metrics::DownloadErrorCode GetDownloadErrorCode(ErrorCode code);
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// Transforms a ErrorCode value into a metrics::AttemptResult.
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//
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// If metrics::AttemptResult::kPayloadDownloadError is returned, you
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// can use utils::GetDownloadError() to get more detail.
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metrics::AttemptResult GetAttemptResult(ErrorCode code);
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// Calculates the internet connection type given |type| and |tethering|.
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metrics::ConnectionType GetConnectionType(ConnectionType type,
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ConnectionTethering tethering);
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// This function returns the duration on the wallclock since the last
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// time it was called for the same |state_variable_key| value.
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//
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// If the function returns |true|, the duration (always non-negative)
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// is returned in |out_duration|. If the function returns |false|
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// something went wrong or there was no previous measurement.
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bool WallclockDurationHelper(SystemState* system_state,
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const std::string& state_variable_key,
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base::TimeDelta* out_duration);
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// This function returns the duration on the monotonic clock since the
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// last time it was called for the same |storage| pointer.
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//
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// You should pass a pointer to a 64-bit integer in |storage| which
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// should be initialized to 0.
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//
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// If the function returns |true|, the duration (always non-negative)
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// is returned in |out_duration|. If the function returns |false|
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// something went wrong or there was no previous measurement.
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bool MonotonicDurationHelper(SystemState* system_state,
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int64_t* storage,
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base::TimeDelta* out_duration);
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} // namespace metrics_utils
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} // namespace chromeos_update_engine
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#endif // UPDATE_ENGINE_METRICS_UTILS_H_
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