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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 "MetricProducer.h"
namespace android {
namespace os {
namespace statsd {
using std::map;
void MetricProducer::onMatchedLogEventLocked(const size_t matcherIndex, const LogEvent& event) {
int64_t eventTimeNs = event.GetElapsedTimestampNs();
// this is old event, maybe statsd restarted?
if (eventTimeNs < mTimeBaseNs) {
return;
}
bool condition;
ConditionKey conditionKey;
std::unordered_set<HashableDimensionKey> dimensionKeysInCondition;
if (mConditionSliced) {
for (const auto& link : mMetric2ConditionLinks) {
getDimensionForCondition(event.getValues(), link, &conditionKey[link.conditionId]);
}
auto conditionState =
mWizard->query(mConditionTrackerIndex, conditionKey, mDimensionsInCondition,
!mSameConditionDimensionsInTracker,
!mHasLinksToAllConditionDimensionsInTracker,
&dimensionKeysInCondition);
condition = (conditionState == ConditionState::kTrue);
} else {
condition = mCondition;
}
if (mDimensionsInCondition.empty() && condition) {
dimensionKeysInCondition.insert(DEFAULT_DIMENSION_KEY);
}
HashableDimensionKey dimensionInWhat;
filterValues(mDimensionsInWhat, event.getValues(), &dimensionInWhat);
MetricDimensionKey metricKey(dimensionInWhat, DEFAULT_DIMENSION_KEY);
for (const auto& conditionDimensionKey : dimensionKeysInCondition) {
metricKey.setDimensionKeyInCondition(conditionDimensionKey);
onMatchedLogEventInternalLocked(
matcherIndex, metricKey, conditionKey, condition, event);
}
if (dimensionKeysInCondition.empty()) {
onMatchedLogEventInternalLocked(
matcherIndex, metricKey, conditionKey, condition, event);
}
}
bool MetricProducer::evaluateActiveStateLocked(int64_t elapsedTimestampNs) {
bool isActive = mEventActivationMap.empty();
for (auto& it : mEventActivationMap) {
if (it.second.state == ActivationState::kActive &&
elapsedTimestampNs > it.second.ttl_ns + it.second.activation_ns) {
it.second.state = ActivationState::kNotActive;
}
if (it.second.state == ActivationState::kActive) {
isActive = true;
}
}
return isActive;
}
void MetricProducer::flushIfExpire(int64_t elapsedTimestampNs) {
std::lock_guard<std::mutex> lock(mMutex);
if (!mIsActive) {
return;
}
mIsActive = evaluateActiveStateLocked(elapsedTimestampNs);
if (!mIsActive) {
flushLocked(elapsedTimestampNs);
}
}
void MetricProducer::addActivation(int activationTrackerIndex, int64_t ttl_seconds) {
std::lock_guard<std::mutex> lock(mMutex);
// When a metric producer does not depend on any activation, its mIsActive is true.
// Therefor, if this is the 1st activation, mIsActive will turn to false. Otherwise it does not
// change.
if (mEventActivationMap.empty()) {
mIsActive = false;
}
mEventActivationMap[activationTrackerIndex].ttl_ns = ttl_seconds * NS_PER_SEC;
}
void MetricProducer::activateLocked(int activationTrackerIndex, int64_t elapsedTimestampNs) {
auto it = mEventActivationMap.find(activationTrackerIndex);
if (it == mEventActivationMap.end()) {
return;
}
it->second.activation_ns = elapsedTimestampNs;
it->second.state = ActivationState::kActive;
mIsActive = true;
}
} // namespace statsd
} // namespace os
} // namespace android
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