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/**
* Copyright (C) 2022-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/db/s/sharding_data_transform_cumulative_metrics.h"
#include "mongo/util/assert_util.h"
namespace mongo {
ShardingDataTransformCumulativeMetrics::DeregistrationFunction
ShardingDataTransformCumulativeMetrics::registerInstanceMetrics(const InstanceObserver* metrics) {
auto it = insertMetrics(metrics);
return [=] {
stdx::unique_lock guard(_mutex);
_instanceMetrics.erase(it);
};
}
int64_t ShardingDataTransformCumulativeMetrics::getOldestOperationRemainingTimeMillis() const {
stdx::unique_lock guard(_mutex);
if (_instanceMetrics.empty()) {
return 0;
}
return (*_instanceMetrics.begin())->getRemainingTimeMillis();
}
size_t ShardingDataTransformCumulativeMetrics::getObservedMetricsCount() const {
stdx::unique_lock guard(_mutex);
return _instanceMetrics.size();
}
ShardingDataTransformCumulativeMetrics::MetricsSet::iterator
ShardingDataTransformCumulativeMetrics::insertMetrics(const InstanceObserver* metrics) {
stdx::unique_lock guard(_mutex);
auto before = _instanceMetrics.size();
auto it = _instanceMetrics.insert(_instanceMetrics.end(), metrics);
invariant(before + 1 == _instanceMetrics.size());
return it;
}
} // namespace mongo
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