Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Tej Singh | 484524a | 2018-02-01 15:10:05 -0800 | [diff] [blame] | 17 | #define DEBUG false // STOPSHIP if true |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 18 | #include "logd/LogEvent.h" |
| 19 | |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 20 | #include <android-base/stringprintf.h> |
| 21 | #include <android/binder_ibinder.h> |
| 22 | #include <private/android_filesystem_config.h> |
| 23 | |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 24 | #include "annotations.h" |
Yangster-mac | 2087716 | 2017-12-22 17:19:39 -0800 | [diff] [blame] | 25 | #include "stats_log_util.h" |
Jeffrey Huang | 74fc435 | 2020-03-06 15:18:33 -0800 | [diff] [blame] | 26 | #include "statslog_statsd.h" |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 27 | |
| 28 | namespace android { |
| 29 | namespace os { |
| 30 | namespace statsd { |
| 31 | |
Jeff Hamilton | fa2f91c | 2019-03-22 00:25:02 -0400 | [diff] [blame] | 32 | // for TrainInfo experiment id serialization |
| 33 | const int FIELD_ID_EXPERIMENT_ID = 1; |
| 34 | |
yro | 24809bd | 2017-10-31 23:06:53 -0700 | [diff] [blame] | 35 | using namespace android::util; |
Ruchir Rastogi | e449b0c | 2020-02-10 17:40:09 -0800 | [diff] [blame] | 36 | using android::base::StringPrintf; |
Yao Chen | 9c1debe | 2018-02-19 14:39:19 -0800 | [diff] [blame] | 37 | using android::util::ProtoOutputStream; |
David Chen | 1481fe1 | 2017-10-16 13:16:34 -0700 | [diff] [blame] | 38 | using std::string; |
Yao Chen | 9c1debe | 2018-02-19 14:39:19 -0800 | [diff] [blame] | 39 | using std::vector; |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 40 | |
Tej Singh | b26d044 | 2020-01-31 16:18:21 -0800 | [diff] [blame] | 41 | // stats_event.h socket types. Keep in sync. |
| 42 | /* ERRORS */ |
| 43 | #define ERROR_NO_TIMESTAMP 0x1 |
| 44 | #define ERROR_NO_ATOM_ID 0x2 |
| 45 | #define ERROR_OVERFLOW 0x4 |
| 46 | #define ERROR_ATTRIBUTION_CHAIN_TOO_LONG 0x8 |
| 47 | #define ERROR_TOO_MANY_KEY_VALUE_PAIRS 0x10 |
| 48 | #define ERROR_ANNOTATION_DOES_NOT_FOLLOW_FIELD 0x20 |
| 49 | #define ERROR_INVALID_ANNOTATION_ID 0x40 |
| 50 | #define ERROR_ANNOTATION_ID_TOO_LARGE 0x80 |
| 51 | #define ERROR_TOO_MANY_ANNOTATIONS 0x100 |
| 52 | #define ERROR_TOO_MANY_FIELDS 0x200 |
| 53 | #define ERROR_INVALID_VALUE_TYPE 0x400 |
| 54 | #define ERROR_STRING_NOT_NULL_TERMINATED 0x800 |
| 55 | |
| 56 | /* TYPE IDS */ |
| 57 | #define INT32_TYPE 0x00 |
| 58 | #define INT64_TYPE 0x01 |
| 59 | #define STRING_TYPE 0x02 |
| 60 | #define LIST_TYPE 0x03 |
| 61 | #define FLOAT_TYPE 0x04 |
| 62 | #define BOOL_TYPE 0x05 |
| 63 | #define BYTE_ARRAY_TYPE 0x06 |
| 64 | #define OBJECT_TYPE 0x07 |
| 65 | #define KEY_VALUE_PAIRS_TYPE 0x08 |
| 66 | #define ATTRIBUTION_CHAIN_TYPE 0x09 |
| 67 | #define ERROR_TYPE 0x0F |
| 68 | |
Chenjie Yu | 0bd73db | 2018-12-16 07:37:04 -0800 | [diff] [blame] | 69 | LogEvent::LogEvent(const LogEvent& event) { |
| 70 | mTagId = event.mTagId; |
| 71 | mLogUid = event.mLogUid; |
Ruchir Rastogi | ab71ef0 | 2020-01-30 01:24:50 -0800 | [diff] [blame] | 72 | mLogPid = event.mLogPid; |
Chenjie Yu | 0bd73db | 2018-12-16 07:37:04 -0800 | [diff] [blame] | 73 | mElapsedTimestampNs = event.mElapsedTimestampNs; |
| 74 | mLogdTimestampNs = event.mLogdTimestampNs; |
| 75 | mValues = event.mValues; |
| 76 | } |
| 77 | |
Ruchir Rastogi | dfd63d4 | 2020-02-20 17:54:13 -0800 | [diff] [blame] | 78 | LogEvent::LogEvent(int32_t uid, int32_t pid) |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 79 | : mLogdTimestampNs(time(nullptr)), mLogUid(uid), mLogPid(pid) { |
Ruchir Rastogi | dfd63d4 | 2020-02-20 17:54:13 -0800 | [diff] [blame] | 80 | } |
| 81 | |
Chenjie Yu | 6b1667c | 2019-01-18 10:09:33 -0800 | [diff] [blame] | 82 | LogEvent::LogEvent(const string& trainName, int64_t trainVersionCode, bool requiresStaging, |
| 83 | bool rollbackEnabled, bool requiresLowLatencyMonitor, int32_t state, |
| 84 | const std::vector<uint8_t>& experimentIds, int32_t userId) { |
| 85 | mLogdTimestampNs = getWallClockNs(); |
| 86 | mElapsedTimestampNs = getElapsedRealtimeNs(); |
Jeffrey Huang | 74fc435 | 2020-03-06 15:18:33 -0800 | [diff] [blame] | 87 | mTagId = util::BINARY_PUSH_STATE_CHANGED; |
Ruchir Rastogi | e449b0c | 2020-02-10 17:40:09 -0800 | [diff] [blame] | 88 | mLogUid = AIBinder_getCallingUid(); |
| 89 | mLogPid = AIBinder_getCallingPid(); |
Chenjie Yu | 6b1667c | 2019-01-18 10:09:33 -0800 | [diff] [blame] | 90 | |
| 91 | mValues.push_back(FieldValue(Field(mTagId, getSimpleField(1)), Value(trainName))); |
| 92 | mValues.push_back(FieldValue(Field(mTagId, getSimpleField(2)), Value(trainVersionCode))); |
| 93 | mValues.push_back(FieldValue(Field(mTagId, getSimpleField(3)), Value((int)requiresStaging))); |
| 94 | mValues.push_back(FieldValue(Field(mTagId, getSimpleField(4)), Value((int)rollbackEnabled))); |
| 95 | mValues.push_back( |
| 96 | FieldValue(Field(mTagId, getSimpleField(5)), Value((int)requiresLowLatencyMonitor))); |
| 97 | mValues.push_back(FieldValue(Field(mTagId, getSimpleField(6)), Value(state))); |
| 98 | mValues.push_back(FieldValue(Field(mTagId, getSimpleField(7)), Value(experimentIds))); |
| 99 | mValues.push_back(FieldValue(Field(mTagId, getSimpleField(8)), Value(userId))); |
| 100 | } |
| 101 | |
Howard Ro | a46b658 | 2018-09-18 16:45:02 -0700 | [diff] [blame] | 102 | LogEvent::LogEvent(int64_t wallClockTimestampNs, int64_t elapsedTimestampNs, |
Chenjie Yu | 97dbb20 | 2019-02-13 16:42:04 -0800 | [diff] [blame] | 103 | const InstallTrainInfo& trainInfo) { |
| 104 | mLogdTimestampNs = wallClockTimestampNs; |
| 105 | mElapsedTimestampNs = elapsedTimestampNs; |
Jeffrey Huang | 74fc435 | 2020-03-06 15:18:33 -0800 | [diff] [blame] | 106 | mTagId = util::TRAIN_INFO; |
Muhammad Qureshi | f4ca824 | 2019-03-01 09:20:15 -0800 | [diff] [blame] | 107 | |
Chenjie Yu | 97dbb20 | 2019-02-13 16:42:04 -0800 | [diff] [blame] | 108 | mValues.push_back( |
| 109 | FieldValue(Field(mTagId, getSimpleField(1)), Value(trainInfo.trainVersionCode))); |
Jeff Hamilton | fa2f91c | 2019-03-22 00:25:02 -0400 | [diff] [blame] | 110 | std::vector<uint8_t> experimentIdsProto; |
| 111 | writeExperimentIdsToProto(trainInfo.experimentIds, &experimentIdsProto); |
| 112 | mValues.push_back(FieldValue(Field(mTagId, getSimpleField(2)), Value(experimentIdsProto))); |
Muhammad Qureshi | f4ca824 | 2019-03-01 09:20:15 -0800 | [diff] [blame] | 113 | mValues.push_back(FieldValue(Field(mTagId, getSimpleField(3)), Value(trainInfo.trainName))); |
| 114 | mValues.push_back(FieldValue(Field(mTagId, getSimpleField(4)), Value(trainInfo.status))); |
Chenjie Yu | 97dbb20 | 2019-02-13 16:42:04 -0800 | [diff] [blame] | 115 | } |
| 116 | |
Yangster-mac | 2087716 | 2017-12-22 17:19:39 -0800 | [diff] [blame] | 117 | LogEvent::~LogEvent() { |
| 118 | if (mContext) { |
Yao Chen | 48d7518 | 2018-01-23 09:40:48 -0800 | [diff] [blame] | 119 | // This is for the case when LogEvent is created using the test interface |
| 120 | // but init() isn't called. |
Yangster-mac | 2087716 | 2017-12-22 17:19:39 -0800 | [diff] [blame] | 121 | android_log_destroy(&mContext); |
Yao Chen | 8023540 | 2017-11-13 20:42:25 -0800 | [diff] [blame] | 122 | } |
| 123 | } |
| 124 | |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 125 | void LogEvent::parseInt32(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) { |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 126 | int32_t value = readNextValue<int32_t>(); |
| 127 | addToValues(pos, depth, value, last); |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 128 | parseAnnotations(numAnnotations); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 129 | } |
| 130 | |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 131 | void LogEvent::parseInt64(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) { |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 132 | int64_t value = readNextValue<int64_t>(); |
| 133 | addToValues(pos, depth, value, last); |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 134 | parseAnnotations(numAnnotations); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 135 | } |
| 136 | |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 137 | void LogEvent::parseString(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) { |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 138 | int32_t numBytes = readNextValue<int32_t>(); |
| 139 | if ((uint32_t)numBytes > mRemainingLen) { |
| 140 | mValid = false; |
| 141 | return; |
| 142 | } |
| 143 | |
| 144 | string value = string((char*)mBuf, numBytes); |
| 145 | mBuf += numBytes; |
| 146 | mRemainingLen -= numBytes; |
| 147 | addToValues(pos, depth, value, last); |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 148 | parseAnnotations(numAnnotations); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 149 | } |
| 150 | |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 151 | void LogEvent::parseFloat(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) { |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 152 | float value = readNextValue<float>(); |
| 153 | addToValues(pos, depth, value, last); |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 154 | parseAnnotations(numAnnotations); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 155 | } |
| 156 | |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 157 | void LogEvent::parseBool(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) { |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 158 | // cast to int32_t because FieldValue does not support bools |
| 159 | int32_t value = (int32_t)readNextValue<uint8_t>(); |
| 160 | addToValues(pos, depth, value, last); |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 161 | parseAnnotations(numAnnotations); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 162 | } |
| 163 | |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 164 | void LogEvent::parseByteArray(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) { |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 165 | int32_t numBytes = readNextValue<int32_t>(); |
| 166 | if ((uint32_t)numBytes > mRemainingLen) { |
| 167 | mValid = false; |
| 168 | return; |
| 169 | } |
| 170 | |
| 171 | vector<uint8_t> value(mBuf, mBuf + numBytes); |
| 172 | mBuf += numBytes; |
| 173 | mRemainingLen -= numBytes; |
| 174 | addToValues(pos, depth, value, last); |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 175 | parseAnnotations(numAnnotations); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 176 | } |
| 177 | |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 178 | void LogEvent::parseKeyValuePairs(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) { |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 179 | int32_t numPairs = readNextValue<uint8_t>(); |
| 180 | |
| 181 | for (pos[1] = 1; pos[1] <= numPairs; pos[1]++) { |
| 182 | last[1] = (pos[1] == numPairs); |
| 183 | |
| 184 | // parse key |
| 185 | pos[2] = 1; |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 186 | parseInt32(pos, /*depth=*/2, last, /*numAnnotations=*/0); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 187 | |
| 188 | // parse value |
| 189 | last[2] = true; |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 190 | |
| 191 | uint8_t typeInfo = readNextValue<uint8_t>(); |
| 192 | switch (getTypeId(typeInfo)) { |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 193 | case INT32_TYPE: |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 194 | pos[2] = 2; // pos[2] determined by index of type in KeyValuePair in atoms.proto |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 195 | parseInt32(pos, /*depth=*/2, last, /*numAnnotations=*/0); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 196 | break; |
| 197 | case INT64_TYPE: |
| 198 | pos[2] = 3; |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 199 | parseInt64(pos, /*depth=*/2, last, /*numAnnotations=*/0); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 200 | break; |
| 201 | case STRING_TYPE: |
| 202 | pos[2] = 4; |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 203 | parseString(pos, /*depth=*/2, last, /*numAnnotations=*/0); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 204 | break; |
| 205 | case FLOAT_TYPE: |
| 206 | pos[2] = 5; |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 207 | parseFloat(pos, /*depth=*/2, last, /*numAnnotations=*/0); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 208 | break; |
| 209 | default: |
| 210 | mValid = false; |
| 211 | } |
| 212 | } |
| 213 | |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 214 | parseAnnotations(numAnnotations); |
| 215 | |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 216 | pos[1] = pos[2] = 1; |
| 217 | last[1] = last[2] = false; |
| 218 | } |
| 219 | |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 220 | void LogEvent::parseAttributionChain(int32_t* pos, int32_t depth, bool* last, |
| 221 | uint8_t numAnnotations) { |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 222 | int firstUidInChainIndex = mValues.size(); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 223 | int32_t numNodes = readNextValue<uint8_t>(); |
| 224 | for (pos[1] = 1; pos[1] <= numNodes; pos[1]++) { |
| 225 | last[1] = (pos[1] == numNodes); |
| 226 | |
| 227 | // parse uid |
| 228 | pos[2] = 1; |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 229 | parseInt32(pos, /*depth=*/2, last, /*numAnnotations=*/0); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 230 | |
| 231 | // parse tag |
| 232 | pos[2] = 2; |
| 233 | last[2] = true; |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 234 | parseString(pos, /*depth=*/2, last, /*numAnnotations=*/0); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 235 | } |
| 236 | |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 237 | parseAnnotations(numAnnotations, firstUidInChainIndex); |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 238 | |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 239 | pos[1] = pos[2] = 1; |
| 240 | last[1] = last[2] = false; |
| 241 | } |
| 242 | |
Ruchir Rastogi | ffa34f0 | 2020-04-04 15:30:11 -0700 | [diff] [blame] | 243 | // Assumes that mValues is not empty |
| 244 | bool LogEvent::checkPreviousValueType(Type expected) { |
| 245 | return mValues[mValues.size() - 1].mValue.getType() == expected; |
| 246 | } |
| 247 | |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 248 | void LogEvent::parseIsUidAnnotation(uint8_t annotationType) { |
Ruchir Rastogi | ffa34f0 | 2020-04-04 15:30:11 -0700 | [diff] [blame] | 249 | if (mValues.empty() || !checkPreviousValueType(INT) || annotationType != BOOL_TYPE) { |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 250 | mValid = false; |
| 251 | return; |
| 252 | } |
| 253 | |
| 254 | bool isUid = readNextValue<uint8_t>(); |
| 255 | if (isUid) mUidFieldIndex = mValues.size() - 1; |
Ruchir Rastogi | ffa34f0 | 2020-04-04 15:30:11 -0700 | [diff] [blame] | 256 | mValues[mValues.size() - 1].mAnnotations.setUidField(isUid); |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 257 | } |
| 258 | |
| 259 | void LogEvent::parseTruncateTimestampAnnotation(uint8_t annotationType) { |
| 260 | if (!mValues.empty() || annotationType != BOOL_TYPE) { |
| 261 | mValid = false; |
| 262 | return; |
| 263 | } |
| 264 | |
| 265 | mTruncateTimestamp = readNextValue<uint8_t>(); |
| 266 | } |
| 267 | |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 268 | void LogEvent::parsePrimaryFieldAnnotation(uint8_t annotationType) { |
| 269 | if (mValues.empty() || annotationType != BOOL_TYPE) { |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 270 | mValid = false; |
| 271 | return; |
| 272 | } |
| 273 | |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 274 | const bool primaryField = readNextValue<uint8_t>(); |
| 275 | mValues[mValues.size() - 1].mAnnotations.setPrimaryField(primaryField); |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 276 | } |
| 277 | |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 278 | void LogEvent::parsePrimaryFieldFirstUidAnnotation(uint8_t annotationType, |
| 279 | int firstUidInChainIndex) { |
| 280 | if (mValues.empty() || annotationType != BOOL_TYPE || -1 == firstUidInChainIndex) { |
| 281 | mValid = false; |
| 282 | return; |
| 283 | } |
| 284 | |
| 285 | const bool primaryField = readNextValue<uint8_t>(); |
| 286 | mValues[firstUidInChainIndex].mAnnotations.setPrimaryField(primaryField); |
| 287 | } |
| 288 | |
| 289 | void LogEvent::parseExclusiveStateAnnotation(uint8_t annotationType) { |
| 290 | if (mValues.empty() || annotationType != BOOL_TYPE) { |
| 291 | mValid = false; |
| 292 | return; |
| 293 | } |
| 294 | |
| 295 | const bool exclusiveState = readNextValue<uint8_t>(); |
| 296 | mValues[mValues.size() - 1].mAnnotations.setExclusiveState(exclusiveState); |
| 297 | } |
| 298 | |
| 299 | void LogEvent::parseTriggerStateResetAnnotation(uint8_t annotationType) { |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 300 | if (mValues.empty() || annotationType != INT32_TYPE) { |
| 301 | mValid = false; |
| 302 | return; |
| 303 | } |
| 304 | |
| 305 | int32_t resetState = readNextValue<int32_t>(); |
| 306 | mValues[mValues.size() - 1].mAnnotations.setResetState(resetState); |
| 307 | } |
| 308 | |
| 309 | void LogEvent::parseStateNestedAnnotation(uint8_t annotationType) { |
| 310 | if (mValues.empty() || annotationType != BOOL_TYPE) { |
| 311 | mValid = false; |
| 312 | return; |
| 313 | } |
| 314 | |
| 315 | bool nested = readNextValue<uint8_t>(); |
| 316 | mValues[mValues.size() - 1].mAnnotations.setNested(nested); |
| 317 | } |
| 318 | |
| 319 | // firstUidInChainIndex is a default parameter that is only needed when parsing |
| 320 | // annotations for attribution chains. |
| 321 | void LogEvent::parseAnnotations(uint8_t numAnnotations, int firstUidInChainIndex) { |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 322 | for (uint8_t i = 0; i < numAnnotations; i++) { |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 323 | uint8_t annotationId = readNextValue<uint8_t>(); |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 324 | uint8_t annotationType = readNextValue<uint8_t>(); |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 325 | |
| 326 | switch (annotationId) { |
| 327 | case ANNOTATION_ID_IS_UID: |
| 328 | parseIsUidAnnotation(annotationType); |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 329 | break; |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 330 | case ANNOTATION_ID_TRUNCATE_TIMESTAMP: |
| 331 | parseTruncateTimestampAnnotation(annotationType); |
| 332 | break; |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 333 | case ANNOTATION_ID_PRIMARY_FIELD: |
| 334 | parsePrimaryFieldAnnotation(annotationType); |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 335 | break; |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 336 | case ANNOTATION_ID_PRIMARY_FIELD_FIRST_UID: |
| 337 | parsePrimaryFieldFirstUidAnnotation(annotationType, firstUidInChainIndex); |
| 338 | break; |
| 339 | case ANNOTATION_ID_EXCLUSIVE_STATE: |
| 340 | parseExclusiveStateAnnotation(annotationType); |
| 341 | break; |
| 342 | case ANNOTATION_ID_TRIGGER_STATE_RESET: |
| 343 | parseTriggerStateResetAnnotation(annotationType); |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 344 | break; |
| 345 | case ANNOTATION_ID_STATE_NESTED: |
| 346 | parseStateNestedAnnotation(annotationType); |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 347 | break; |
| 348 | default: |
| 349 | mValid = false; |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 350 | return; |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 351 | } |
| 352 | } |
| 353 | } |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 354 | |
| 355 | // This parsing logic is tied to the encoding scheme used in StatsEvent.java and |
| 356 | // stats_event.c |
Ruchir Rastogi | dfd63d4 | 2020-02-20 17:54:13 -0800 | [diff] [blame] | 357 | bool LogEvent::parseBuffer(uint8_t* buf, size_t len) { |
| 358 | mBuf = buf; |
| 359 | mRemainingLen = (uint32_t)len; |
| 360 | |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 361 | int32_t pos[] = {1, 1, 1}; |
| 362 | bool last[] = {false, false, false}; |
| 363 | |
| 364 | // Beginning of buffer is OBJECT_TYPE | NUM_FIELDS | TIMESTAMP | ATOM_ID |
| 365 | uint8_t typeInfo = readNextValue<uint8_t>(); |
| 366 | if (getTypeId(typeInfo) != OBJECT_TYPE) mValid = false; |
| 367 | |
| 368 | uint8_t numElements = readNextValue<uint8_t>(); |
| 369 | if (numElements < 2 || numElements > 127) mValid = false; |
| 370 | |
| 371 | typeInfo = readNextValue<uint8_t>(); |
| 372 | if (getTypeId(typeInfo) != INT64_TYPE) mValid = false; |
| 373 | mElapsedTimestampNs = readNextValue<int64_t>(); |
| 374 | numElements--; |
| 375 | |
| 376 | typeInfo = readNextValue<uint8_t>(); |
| 377 | if (getTypeId(typeInfo) != INT32_TYPE) mValid = false; |
| 378 | mTagId = readNextValue<int32_t>(); |
| 379 | numElements--; |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 380 | parseAnnotations(getNumAnnotations(typeInfo)); // atom-level annotations |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 381 | |
| 382 | for (pos[0] = 1; pos[0] <= numElements && mValid; pos[0]++) { |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 383 | last[0] = (pos[0] == numElements); |
| 384 | |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 385 | typeInfo = readNextValue<uint8_t>(); |
| 386 | uint8_t typeId = getTypeId(typeInfo); |
| 387 | |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 388 | // TODO(b/144373276): handle errors passed to the socket |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 389 | switch (typeId) { |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 390 | case BOOL_TYPE: |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 391 | parseBool(pos, /*depth=*/0, last, getNumAnnotations(typeInfo)); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 392 | break; |
| 393 | case INT32_TYPE: |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 394 | parseInt32(pos, /*depth=*/0, last, getNumAnnotations(typeInfo)); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 395 | break; |
| 396 | case INT64_TYPE: |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 397 | parseInt64(pos, /*depth=*/0, last, getNumAnnotations(typeInfo)); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 398 | break; |
| 399 | case FLOAT_TYPE: |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 400 | parseFloat(pos, /*depth=*/0, last, getNumAnnotations(typeInfo)); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 401 | break; |
| 402 | case BYTE_ARRAY_TYPE: |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 403 | parseByteArray(pos, /*depth=*/0, last, getNumAnnotations(typeInfo)); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 404 | break; |
| 405 | case STRING_TYPE: |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 406 | parseString(pos, /*depth=*/0, last, getNumAnnotations(typeInfo)); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 407 | break; |
| 408 | case KEY_VALUE_PAIRS_TYPE: |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 409 | parseKeyValuePairs(pos, /*depth=*/0, last, getNumAnnotations(typeInfo)); |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 410 | break; |
| 411 | case ATTRIBUTION_CHAIN_TYPE: |
Ruchir Rastogi | 84eb44b | 2020-03-12 18:48:48 -0700 | [diff] [blame] | 412 | parseAttributionChain(pos, /*depth=*/0, last, getNumAnnotations(typeInfo)); |
Ruchir Rastogi | 1329651 | 2020-03-24 10:59:49 -0700 | [diff] [blame] | 413 | if (mAttributionChainIndex == -1) mAttributionChainIndex = pos[0]; |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 414 | break; |
| 415 | default: |
| 416 | mValid = false; |
| 417 | } |
| 418 | } |
| 419 | |
| 420 | if (mRemainingLen != 0) mValid = false; |
| 421 | mBuf = nullptr; |
Ruchir Rastogi | dfd63d4 | 2020-02-20 17:54:13 -0800 | [diff] [blame] | 422 | return mValid; |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 423 | } |
| 424 | |
| 425 | uint8_t LogEvent::getTypeId(uint8_t typeInfo) { |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 426 | return typeInfo & 0x0F; // type id in lower 4 bytes |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 427 | } |
| 428 | |
| 429 | uint8_t LogEvent::getNumAnnotations(uint8_t typeInfo) { |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 430 | return (typeInfo >> 4) & 0x0F; // num annotations in upper 4 bytes |
Ruchir Rastogi | 1736ba4 | 2019-11-04 14:37:13 -0800 | [diff] [blame] | 431 | } |
| 432 | |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 433 | int64_t LogEvent::GetLong(size_t key, status_t* err) const { |
Yao Chen | 5bfffb5 | 2018-06-21 16:58:51 -0700 | [diff] [blame] | 434 | // TODO(b/110561208): encapsulate the magical operations in Field struct as static functions |
Yao Chen | 8a8d16c | 2018-02-08 14:50:40 -0800 | [diff] [blame] | 435 | int field = getSimpleField(key); |
| 436 | for (const auto& value : mValues) { |
| 437 | if (value.mField.getField() == field) { |
Yao Chen | ab92a1f | 2018-02-13 15:17:55 -0800 | [diff] [blame] | 438 | if (value.mValue.getType() == LONG) { |
| 439 | return value.mValue.long_value; |
| 440 | } else if (value.mValue.getType() == INT) { |
Yao Chen | 8a8d16c | 2018-02-08 14:50:40 -0800 | [diff] [blame] | 441 | return value.mValue.int_value; |
| 442 | } else { |
| 443 | *err = BAD_TYPE; |
| 444 | return 0; |
| 445 | } |
| 446 | } |
| 447 | if ((size_t)value.mField.getPosAtDepth(0) > key) { |
| 448 | break; |
Yangster-mac | 2087716 | 2017-12-22 17:19:39 -0800 | [diff] [blame] | 449 | } |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 450 | } |
Yao Chen | 8a8d16c | 2018-02-08 14:50:40 -0800 | [diff] [blame] | 451 | |
| 452 | *err = BAD_INDEX; |
| 453 | return 0; |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 454 | } |
| 455 | |
Chenjie Yu | 80f9112 | 2018-01-31 20:24:50 -0800 | [diff] [blame] | 456 | int LogEvent::GetInt(size_t key, status_t* err) const { |
Yao Chen | 8a8d16c | 2018-02-08 14:50:40 -0800 | [diff] [blame] | 457 | int field = getSimpleField(key); |
| 458 | for (const auto& value : mValues) { |
| 459 | if (value.mField.getField() == field) { |
| 460 | if (value.mValue.getType() == INT) { |
| 461 | return value.mValue.int_value; |
| 462 | } else { |
| 463 | *err = BAD_TYPE; |
| 464 | return 0; |
| 465 | } |
| 466 | } |
| 467 | if ((size_t)value.mField.getPosAtDepth(0) > key) { |
| 468 | break; |
| 469 | } |
| 470 | } |
| 471 | |
Chenjie Yu | 80f9112 | 2018-01-31 20:24:50 -0800 | [diff] [blame] | 472 | *err = BAD_INDEX; |
| 473 | return 0; |
Chenjie Yu | 80f9112 | 2018-01-31 20:24:50 -0800 | [diff] [blame] | 474 | } |
| 475 | |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 476 | const char* LogEvent::GetString(size_t key, status_t* err) const { |
Yao Chen | 8a8d16c | 2018-02-08 14:50:40 -0800 | [diff] [blame] | 477 | int field = getSimpleField(key); |
| 478 | for (const auto& value : mValues) { |
| 479 | if (value.mField.getField() == field) { |
| 480 | if (value.mValue.getType() == STRING) { |
| 481 | return value.mValue.str_value.c_str(); |
| 482 | } else { |
| 483 | *err = BAD_TYPE; |
| 484 | return 0; |
| 485 | } |
| 486 | } |
| 487 | if ((size_t)value.mField.getPosAtDepth(0) > key) { |
| 488 | break; |
Yangster-mac | 2087716 | 2017-12-22 17:19:39 -0800 | [diff] [blame] | 489 | } |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 490 | } |
Yao Chen | 8a8d16c | 2018-02-08 14:50:40 -0800 | [diff] [blame] | 491 | |
| 492 | *err = BAD_INDEX; |
| 493 | return NULL; |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 494 | } |
| 495 | |
| 496 | bool LogEvent::GetBool(size_t key, status_t* err) const { |
Yao Chen | 8a8d16c | 2018-02-08 14:50:40 -0800 | [diff] [blame] | 497 | int field = getSimpleField(key); |
| 498 | for (const auto& value : mValues) { |
| 499 | if (value.mField.getField() == field) { |
| 500 | if (value.mValue.getType() == INT) { |
| 501 | return value.mValue.int_value != 0; |
| 502 | } else if (value.mValue.getType() == LONG) { |
| 503 | return value.mValue.long_value != 0; |
| 504 | } else { |
| 505 | *err = BAD_TYPE; |
| 506 | return false; |
| 507 | } |
| 508 | } |
| 509 | if ((size_t)value.mField.getPosAtDepth(0) > key) { |
| 510 | break; |
Yangster-mac | 2087716 | 2017-12-22 17:19:39 -0800 | [diff] [blame] | 511 | } |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 512 | } |
Yao Chen | 8a8d16c | 2018-02-08 14:50:40 -0800 | [diff] [blame] | 513 | |
| 514 | *err = BAD_INDEX; |
| 515 | return false; |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 516 | } |
| 517 | |
| 518 | float LogEvent::GetFloat(size_t key, status_t* err) const { |
Yao Chen | 8a8d16c | 2018-02-08 14:50:40 -0800 | [diff] [blame] | 519 | int field = getSimpleField(key); |
| 520 | for (const auto& value : mValues) { |
| 521 | if (value.mField.getField() == field) { |
| 522 | if (value.mValue.getType() == FLOAT) { |
| 523 | return value.mValue.float_value; |
| 524 | } else { |
| 525 | *err = BAD_TYPE; |
| 526 | return 0.0; |
| 527 | } |
| 528 | } |
| 529 | if ((size_t)value.mField.getPosAtDepth(0) > key) { |
| 530 | break; |
Yangster-mac | 2087716 | 2017-12-22 17:19:39 -0800 | [diff] [blame] | 531 | } |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 532 | } |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 533 | |
Yao Chen | 8a8d16c | 2018-02-08 14:50:40 -0800 | [diff] [blame] | 534 | *err = BAD_INDEX; |
| 535 | return 0.0; |
Yangster-mac | d40053e | 2018-01-09 16:29:22 -0800 | [diff] [blame] | 536 | } |
| 537 | |
Jonathan Nguyen | a0e6de1 | 2020-01-28 18:33:55 -0800 | [diff] [blame] | 538 | std::vector<uint8_t> LogEvent::GetStorage(size_t key, status_t* err) const { |
| 539 | int field = getSimpleField(key); |
| 540 | for (const auto& value : mValues) { |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 541 | if (value.mField.getField() == field) { |
| 542 | if (value.mValue.getType() == STORAGE) { |
| 543 | return value.mValue.storage_value; |
| 544 | } else { |
| 545 | *err = BAD_TYPE; |
| 546 | return vector<uint8_t>(); |
| 547 | } |
Jonathan Nguyen | a0e6de1 | 2020-01-28 18:33:55 -0800 | [diff] [blame] | 548 | } |
Muhammad Qureshi | 3f9c330 | 2020-04-01 16:11:53 -0700 | [diff] [blame] | 549 | if ((size_t)value.mField.getPosAtDepth(0) > key) { |
| 550 | break; |
| 551 | } |
Jonathan Nguyen | a0e6de1 | 2020-01-28 18:33:55 -0800 | [diff] [blame] | 552 | } |
| 553 | |
| 554 | *err = BAD_INDEX; |
| 555 | return vector<uint8_t>(); |
| 556 | } |
| 557 | |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 558 | string LogEvent::ToString() const { |
Yao Chen | 20e9e62 | 2018-02-28 11:18:51 -0800 | [diff] [blame] | 559 | string result; |
Yao Chen | 8e6f998 | 2018-11-29 09:39:45 -0800 | [diff] [blame] | 560 | result += StringPrintf("{ uid(%d) %lld %lld (%d)", mLogUid, (long long)mLogdTimestampNs, |
Yao Chen | 20e9e62 | 2018-02-28 11:18:51 -0800 | [diff] [blame] | 561 | (long long)mElapsedTimestampNs, mTagId); |
Yao Chen | 8a8d16c | 2018-02-08 14:50:40 -0800 | [diff] [blame] | 562 | for (const auto& value : mValues) { |
Yao Chen | 20e9e62 | 2018-02-28 11:18:51 -0800 | [diff] [blame] | 563 | result += |
| 564 | StringPrintf("%#x", value.mField.getField()) + "->" + value.mValue.toString() + " "; |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 565 | } |
Yao Chen | 20e9e62 | 2018-02-28 11:18:51 -0800 | [diff] [blame] | 566 | result += " }"; |
| 567 | return result; |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 568 | } |
| 569 | |
Yangster-mac | 2087716 | 2017-12-22 17:19:39 -0800 | [diff] [blame] | 570 | void LogEvent::ToProto(ProtoOutputStream& protoOutput) const { |
Yao Chen | 8a8d16c | 2018-02-08 14:50:40 -0800 | [diff] [blame] | 571 | writeFieldValueTreeToStream(mTagId, getValues(), &protoOutput); |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 572 | } |
| 573 | |
Tej Singh | 9b4a5ec | 2019-04-25 12:43:35 -0700 | [diff] [blame] | 574 | void writeExperimentIdsToProto(const std::vector<int64_t>& experimentIds, |
| 575 | std::vector<uint8_t>* protoOut) { |
Jeff Hamilton | fa2f91c | 2019-03-22 00:25:02 -0400 | [diff] [blame] | 576 | ProtoOutputStream proto; |
| 577 | for (const auto& expId : experimentIds) { |
| 578 | proto.write(FIELD_TYPE_INT64 | FIELD_COUNT_REPEATED | FIELD_ID_EXPERIMENT_ID, |
| 579 | (long long)expId); |
| 580 | } |
| 581 | |
| 582 | protoOut->resize(proto.size()); |
| 583 | size_t pos = 0; |
| 584 | sp<ProtoReader> reader = proto.data(); |
| 585 | while (reader->readBuffer() != NULL) { |
| 586 | size_t toRead = reader->currentToRead(); |
| 587 | std::memcpy(protoOut->data() + pos, reader->readBuffer(), toRead); |
| 588 | pos += toRead; |
| 589 | reader->move(toRead); |
| 590 | } |
| 591 | } |
| 592 | |
Joe Onorato | c4dfae5 | 2017-10-17 23:38:21 -0700 | [diff] [blame] | 593 | } // namespace statsd |
| 594 | } // namespace os |
| 595 | } // namespace android |