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Copy pathdisk-cache-stats.go
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64 lines (54 loc) · 1.5 KB
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/*
* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
*
* 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.
*/
package cmd
import (
"go.uber.org/atomic"
)
// CacheStats - represents bytes served from cache,
// cache hits and cache misses.
type CacheStats struct {
BytesServed atomic.Uint64
Hits atomic.Uint64
Misses atomic.Uint64
}
// Increase total bytes served from cache
func (s *CacheStats) incBytesServed(n int64) {
s.BytesServed.Add(uint64(n))
}
// Increase cache hit by 1
func (s *CacheStats) incHit() {
s.Hits.Add(uint64(1))
}
// Increase cache miss by 1
func (s *CacheStats) incMiss() {
s.Misses.Add(uint64(1))
}
// Get total bytes served
func (s *CacheStats) getBytesServed() uint64 {
return s.BytesServed.Load()
}
// Get total cache hits
func (s *CacheStats) getHits() uint64 {
return s.Hits.Load()
}
// Get total cache misses
func (s *CacheStats) getMisses() uint64 {
return s.Misses.Load()
}
// Prepare new CacheStats structure
func newCacheStats() *CacheStats {
return &CacheStats{}
}