/
persist_stat.go
88 lines (69 loc) · 1.83 KB
/
persist_stat.go
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// Copyright (c) 2021 Terminus, 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 persist_stat
import (
"sync"
"time"
)
type AccumType int
const (
SUM AccumType = iota
AVG
)
type Policy struct {
AccumTp AccumType
Interval int // second
PreserveDays int
}
type PersistStoreStat interface {
// 对于etcd后端,interval >= 60s,以控制数据量 1day <= 60 * 24 (1440)
SetPolicy(policy Policy) error
Emit(tag string, value int64) error
Last5Min() (map[string]int64, error)
Last20Min() (map[string]int64, error)
Last1Hour() (map[string]int64, error)
Last6Hour() (map[string]int64, error)
Last1Day() (map[string]int64, error)
Stat(beginTimestamp, endTimestamp time.Time) (map[string]int64, error)
Clear(beforeTimeStamp time.Time) error
// Metrics 返回自启动以来的 metric 统计
Metrics() map[string]int64
}
type MemMetrics struct {
sync.RWMutex
m map[string]int64
}
func NewMemMetrics() *MemMetrics {
m := map[string]int64{}
return &MemMetrics{m: m}
}
func (m *MemMetrics) EmitMetric(tag string, value int64) {
m.Lock()
defer m.Unlock()
v, ok := m.m[tag]
if !ok {
m.m[tag] = value
return
}
m.m[tag] = v + value
}
func (m *MemMetrics) GetMetrics() map[string]int64 {
m.RLock()
defer m.RUnlock()
newm := map[string]int64{}
for tag, v := range m.m {
newm[tag] = v
}
return newm
}