| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ORING_DURATION_TRACKER_H |
| #define ORING_DURATION_TRACKER_H |
| |
| #include "DurationTracker.h" |
| |
| #include <set> |
| namespace android { |
| namespace os { |
| namespace statsd { |
| |
| // Tracks the "Or'd" duration -- if 2 durations are overlapping, they won't be double counted. |
| class OringDurationTracker : public DurationTracker { |
| public: |
| OringDurationTracker(sp<ConditionWizard> wizard, int conditionIndex, |
| uint64_t currentBucketStartNs, uint64_t bucketSizeNs, |
| std::vector<DurationBucket>& bucket); |
| void noteStart(const HashableDimensionKey& key, bool condition, const uint64_t eventTime, |
| const ConditionKey& conditionKey) override; |
| void noteStop(const HashableDimensionKey& key, const uint64_t eventTime) override; |
| void noteStopAll(const uint64_t eventTime) override; |
| void onSlicedConditionMayChange(const uint64_t timestamp) override; |
| void onConditionChanged(bool condition, const uint64_t timestamp) override; |
| bool flushIfNeeded(uint64_t timestampNs) override; |
| |
| private: |
| // We don't need to keep track of individual durations. The information that's needed is: |
| // 1) which keys are started. We record the first start time. |
| // 2) which keys are paused (started but condition was false) |
| // 3) whenever a key stops, we remove it from the started set. And if the set becomes empty, |
| // it means everything has stopped, we then record the end time. |
| std::set<HashableDimensionKey> mStarted; |
| std::set<HashableDimensionKey> mPaused; |
| int64_t mLastStartTime; |
| std::map<HashableDimensionKey, ConditionKey> mConditionKeyMap; |
| }; |
| |
| } // namespace statsd |
| } // namespace os |
| } // namespace android |
| |
| #endif // ORING_DURATION_TRACKER_H |