You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
2.6 KiB
79 lines
2.6 KiB
/*
|
|
* Copyright (C) 2016 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 ANDROID_SENSOR_SERVICE_UTIL_RECENT_EVENT_LOGGER_H
|
|
#define ANDROID_SENSOR_SERVICE_UTIL_RECENT_EVENT_LOGGER_H
|
|
|
|
#include "RingBuffer.h"
|
|
#include "SensorServiceUtils.h"
|
|
|
|
#include <hardware/sensors.h>
|
|
#include <utils/String8.h>
|
|
|
|
#include <mutex>
|
|
|
|
namespace android {
|
|
namespace SensorServiceUtil {
|
|
|
|
// A circular buffer that record the last N events of a sensor type for debugging. The size of this
|
|
// buffer depends on sensor type and is controlled by logSizeBySensorType(). The last N events
|
|
// generated from the sensor are stored in this buffer. The buffer is NOT cleared when the sensor
|
|
// unregisters and as a result very old data in the dumpsys output can be seen, which is an intended
|
|
// behavior.
|
|
class RecentEventLogger : public Dumpable {
|
|
public:
|
|
explicit RecentEventLogger(int sensorType);
|
|
void addEvent(const sensors_event_t& event);
|
|
|
|
// Populate event with the last recorded sensor event if it is not stale. An event is
|
|
// considered stale if the sensor has become deactivated since the event was recorded.
|
|
// returns true on success, false if no recent event is available or the last event is stale
|
|
bool populateLastEventIfCurrent(sensors_event_t *event) const;
|
|
bool isEmpty() const;
|
|
void setLastEventStale();
|
|
virtual ~RecentEventLogger() {}
|
|
|
|
// Dumpable interface
|
|
virtual std::string dump() const override;
|
|
virtual void dump(util::ProtoOutputStream* proto) const override;
|
|
virtual void setFormat(std::string format) override;
|
|
|
|
protected:
|
|
struct SensorEventLog {
|
|
explicit SensorEventLog(const sensors_event_t& e);
|
|
timespec mWallTime;
|
|
sensors_event_t mEvent;
|
|
};
|
|
|
|
const int mSensorType;
|
|
const size_t mEventSize;
|
|
|
|
mutable std::mutex mLock;
|
|
RingBuffer<SensorEventLog> mRecentEvents;
|
|
|
|
bool mMaskData;
|
|
bool mIsLastEventCurrent;
|
|
|
|
private:
|
|
static size_t logSizeBySensorType(int sensorType);
|
|
};
|
|
|
|
} // namespace SensorServiceUtil
|
|
} // namespace android;
|
|
|
|
#endif // ANDROID_SENSOR_SERVICE_UTIL_RECENT_EVENT_LOGGER_H
|
|
|