1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/*
* 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 <android/util/ProtoOutputStream.h>
#include <frameworks/base/core/proto/android/service/sensor_service.proto.h>
#include <utils/Timers.h>
#include <inttypes.h>
namespace android {
namespace SensorServiceUtil {
namespace {
constexpr size_t LOG_SIZE = 10;
constexpr size_t LOG_SIZE_MED = 30; // debugging for slower sensors
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),
mIsLastEventCurrent(false) {
// blank
}
void RecentEventLogger::addEvent(const sensors_event_t& event) {
std::lock_guard<std::mutex> lk(mLock);
mRecentEvents.emplace(event);
mIsLastEventCurrent = true;
}
bool RecentEventLogger::isEmpty() const {
return mRecentEvents.size() == 0;
}
void RecentEventLogger::setLastEventStale() {
std::lock_guard<std::mutex> lk(mLock);
mIsLastEventCurrent = false;
}
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());
}
/**
* Dump debugging information as android.service.SensorEventsProto protobuf message using
* ProtoOutputStream.
*
* See proto definition and some notes about ProtoOutputStream in
* frameworks/base/core/proto/android/service/sensor_service.proto
*/
void RecentEventLogger::dump(util::ProtoOutputStream* proto) const {
using namespace service::SensorEventsProto;
std::lock_guard<std::mutex> lk(mLock);
proto->write(RecentEventsLog::RECENT_EVENTS_COUNT, int(mRecentEvents.size()));
for (int i = mRecentEvents.size() - 1; i >= 0; --i) {
const auto& ev = mRecentEvents[i];
const uint64_t token = proto->start(RecentEventsLog::EVENTS);
proto->write(Event::TIMESTAMP_SEC, float(ev.mEvent.timestamp) / 1e9f);
proto->write(Event::WALL_TIMESTAMP_MS, ev.mWallTime.tv_sec * 1000LL
+ ns2ms(ev.mWallTime.tv_nsec));
if (mMaskData) {
proto->write(Event::MASKED, true);
} else {
if (mSensorType == SENSOR_TYPE_STEP_COUNTER) {
proto->write(Event::INT64_DATA, int64_t(ev.mEvent.u64.step_counter));
} else {
for (size_t k = 0; k < mEventSize; ++k) {
proto->write(Event::FLOAT_ARRAY, ev.mEvent.data[k]);
}
}
}
proto->end(token);
}
}
void RecentEventLogger::setFormat(std::string format) {
if (format == "mask_data" ) {
mMaskData = true;
} else {
mMaskData = false;
}
}
bool RecentEventLogger::populateLastEventIfCurrent(sensors_event_t *event) const {
std::lock_guard<std::mutex> lk(mLock);
if (mIsLastEventCurrent && 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) {
if (sensorType == SENSOR_TYPE_STEP_COUNTER ||
sensorType == SENSOR_TYPE_SIGNIFICANT_MOTION ||
sensorType == SENSOR_TYPE_ACCELEROMETER ||
sensorType == SENSOR_TYPE_LIGHT) {
return LOG_SIZE_LARGE;
}
if (sensorType == SENSOR_TYPE_PROXIMITY) {
return LOG_SIZE_MED;
}
return LOG_SIZE;
}
RecentEventLogger::SensorEventLog::SensorEventLog(const sensors_event_t& e) : mEvent(e) {
clock_gettime(CLOCK_REALTIME, &mWallTime);
}
} // namespace SensorServiceUtil
} // namespace android
|
