// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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.

#pragma once

#include "kudu/gutil/ref_counted.h"
#include "kudu/util/cache_metrics.h"

namespace kudu {

class MetricEntity;

struct TTLCacheMetrics : public CacheMetrics {
  // Number of cache hits that found an expired entry.
  scoped_refptr<Counter> cache_hits_expired;
  // Number of evicted entries that had already been expired upon eviction.
  scoped_refptr<Counter> evictions_expired;
};

} // namespace kudu