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/*
* 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.
*/
#define DEBUG false // STOPSHIP if true
#include "Log.h"
#include "EventMetricProducer.h"
#include "stats_util.h"
#include "stats_log_util.h"
#include <limits.h>
#include <stdlib.h>
using android::util::FIELD_COUNT_REPEATED;
using android::util::FIELD_TYPE_BOOL;
using android::util::FIELD_TYPE_FLOAT;
using android::util::FIELD_TYPE_INT32;
using android::util::FIELD_TYPE_INT64;
using android::util::FIELD_TYPE_STRING;
using android::util::FIELD_TYPE_MESSAGE;
using android::util::ProtoOutputStream;
using std::map;
using std::string;
using std::unordered_map;
using std::vector;
namespace android {
namespace os {
namespace statsd {
// for StatsLogReport
const int FIELD_ID_ID = 1;
const int FIELD_ID_EVENT_METRICS = 4;
const int FIELD_ID_IS_ACTIVE = 14;
// for EventMetricDataWrapper
const int FIELD_ID_DATA = 1;
// for EventMetricData
const int FIELD_ID_ELAPSED_TIMESTAMP_NANOS = 1;
const int FIELD_ID_ATOMS = 2;
EventMetricProducer::EventMetricProducer(const ConfigKey& key, const EventMetric& metric,
const int conditionIndex,
const sp<ConditionWizard>& wizard,
const int64_t startTimeNs)
: MetricProducer(metric.id(), key, startTimeNs, conditionIndex, wizard) {
if (metric.links().size() > 0) {
for (const auto& link : metric.links()) {
Metric2Condition mc;
mc.conditionId = link.condition();
translateFieldMatcher(link.fields_in_what(), &mc.metricFields);
translateFieldMatcher(link.fields_in_condition(), &mc.conditionFields);
mMetric2ConditionLinks.push_back(mc);
}
mConditionSliced = true;
}
mProto = std::make_unique<ProtoOutputStream>();
VLOG("metric %lld created. bucket size %lld start_time: %lld", (long long)metric.id(),
(long long)mBucketSizeNs, (long long)mTimeBaseNs);
}
EventMetricProducer::~EventMetricProducer() {
VLOG("~EventMetricProducer() called");
}
void EventMetricProducer::dropDataLocked(const int64_t dropTimeNs) {
mProto->clear();
StatsdStats::getInstance().noteBucketDropped(mMetricId);
}
void EventMetricProducer::onSlicedConditionMayChangeLocked(bool overallCondition,
const int64_t eventTime) {
}
std::unique_ptr<std::vector<uint8_t>> serializeProtoLocked(ProtoOutputStream& protoOutput) {
size_t bufferSize = protoOutput.size();
std::unique_ptr<std::vector<uint8_t>> buffer(new std::vector<uint8_t>(bufferSize));
size_t pos = 0;
sp<android::util::ProtoReader> reader = protoOutput.data();
while (reader->readBuffer() != NULL) {
size_t toRead = reader->currentToRead();
std::memcpy(&((*buffer)[pos]), reader->readBuffer(), toRead);
pos += toRead;
reader->move(toRead);
}
return buffer;
}
void EventMetricProducer::clearPastBucketsLocked(const int64_t dumpTimeNs) {
mProto->clear();
}
void EventMetricProducer::onDumpReportLocked(const int64_t dumpTimeNs,
const bool include_current_partial_bucket,
const bool erase_data,
const DumpLatency dumpLatency,
std::set<string> *str_set,
ProtoOutputStream* protoOutput) {
protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_ID, (long long)mMetricId);
protoOutput->write(FIELD_TYPE_BOOL | FIELD_ID_IS_ACTIVE, isActiveLocked());
if (mProto->size() <= 0) {
return;
}
size_t bufferSize = mProto->size();
VLOG("metric %lld dump report now... proto size: %zu ",
(long long)mMetricId, bufferSize);
std::unique_ptr<std::vector<uint8_t>> buffer = serializeProtoLocked(*mProto);
protoOutput->write(FIELD_TYPE_MESSAGE | FIELD_ID_EVENT_METRICS,
reinterpret_cast<char*>(buffer.get()->data()), buffer.get()->size());
if (erase_data) {
mProto->clear();
}
}
void EventMetricProducer::onConditionChangedLocked(const bool conditionMet,
const int64_t eventTime) {
VLOG("Metric %lld onConditionChanged", (long long)mMetricId);
mCondition = conditionMet ? ConditionState::kTrue : ConditionState::kFalse;
}
void EventMetricProducer::onMatchedLogEventInternalLocked(
const size_t matcherIndex, const MetricDimensionKey& eventKey,
const ConditionKey& conditionKey, bool condition,
const LogEvent& event) {
if (!condition) {
return;
}
uint64_t wrapperToken =
mProto->start(FIELD_TYPE_MESSAGE | FIELD_COUNT_REPEATED | FIELD_ID_DATA);
const int64_t elapsedTimeNs = truncateTimestampIfNecessary(
event.GetTagId(), event.GetElapsedTimestampNs());
mProto->write(FIELD_TYPE_INT64 | FIELD_ID_ELAPSED_TIMESTAMP_NANOS, (long long) elapsedTimeNs);
uint64_t eventToken = mProto->start(FIELD_TYPE_MESSAGE | FIELD_ID_ATOMS);
event.ToProto(*mProto);
mProto->end(eventToken);
mProto->end(wrapperToken);
}
size_t EventMetricProducer::byteSizeLocked() const {
return mProto->bytesWritten();
}
} // namespace statsd
} // namespace os
} // namespace android
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