| /* |
| * 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. |
| */ |
| |
| #include "RecentEventLogger.h" |
| #include "SensorServiceUtils.h" |
| |
| #include <utils/Timers.h> |
| |
| #include <inttypes.h> |
| |
| namespace android { |
| namespace SensorServiceUtil { |
| |
| namespace { |
| constexpr size_t LOG_SIZE = 10; |
| constexpr size_t LOG_SIZE_LARGE = 50; // larger samples for debugging |
| }// unnamed namespace |
| |
| RecentEventLogger::RecentEventLogger(int sensorType) : |
| mSensorType(sensorType), mEventSize(eventSizeBySensorType(mSensorType)), |
| mRecentEvents(logSizeBySensorType(sensorType)), mMaskData(false) { |
| // blank |
| } |
| |
| void RecentEventLogger::addEvent(const sensors_event_t& event) { |
| std::lock_guard<std::mutex> lk(mLock); |
| mRecentEvents.emplace(event); |
| } |
| |
| bool RecentEventLogger::isEmpty() const { |
| return mRecentEvents.size() == 0; |
| } |
| |
| std::string RecentEventLogger::dump() const { |
| std::lock_guard<std::mutex> lk(mLock); |
| |
| //TODO: replace String8 with std::string completely in this function |
| String8 buffer; |
| |
| buffer.appendFormat("last %zu events\n", mRecentEvents.size()); |
| int j = 0; |
| for (int i = mRecentEvents.size() - 1; i >= 0; --i) { |
| const auto& ev = mRecentEvents[i]; |
| struct tm * timeinfo = localtime(&(ev.mWallTime.tv_sec)); |
| buffer.appendFormat("\t%2d (ts=%.9f, wall=%02d:%02d:%02d.%03d) ", |
| ++j, ev.mEvent.timestamp/1e9, timeinfo->tm_hour, timeinfo->tm_min, timeinfo->tm_sec, |
| (int) ns2ms(ev.mWallTime.tv_nsec)); |
| |
| // data |
| if (!mMaskData) { |
| if (mSensorType == SENSOR_TYPE_STEP_COUNTER) { |
| buffer.appendFormat("%" PRIu64 ", ", ev.mEvent.u64.step_counter); |
| } else { |
| for (size_t k = 0; k < mEventSize; ++k) { |
| buffer.appendFormat("%.2f, ", ev.mEvent.data[k]); |
| } |
| } |
| } else { |
| buffer.append("[value masked]"); |
| } |
| buffer.append("\n"); |
| } |
| return std::string(buffer.string()); |
| } |
| |
| void RecentEventLogger::setFormat(std::string format) { |
| if (format == "mask_data" ) { |
| mMaskData = true; |
| } else { |
| mMaskData = false; |
| } |
| } |
| |
| bool RecentEventLogger::populateLastEvent(sensors_event_t *event) const { |
| std::lock_guard<std::mutex> lk(mLock); |
| |
| if (mRecentEvents.size()) { |
| // Index 0 contains the latest event emplace()'ed |
| *event = mRecentEvents[0].mEvent; |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| |
| size_t RecentEventLogger::logSizeBySensorType(int sensorType) { |
| return (sensorType == SENSOR_TYPE_STEP_COUNTER || |
| sensorType == SENSOR_TYPE_SIGNIFICANT_MOTION || |
| sensorType == SENSOR_TYPE_ACCELEROMETER) ? LOG_SIZE_LARGE : LOG_SIZE; |
| } |
| |
| RecentEventLogger::SensorEventLog::SensorEventLog(const sensors_event_t& e) : mEvent(e) { |
| clock_gettime(CLOCK_REALTIME, &mWallTime); |
| } |
| |
| } // namespace SensorServiceUtil |
| } // namespace android |