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reference_count.go
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reference_count.go
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/*
* Copyright (c) 2024 Yunshan Networks
*
* 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 pool
import (
"runtime/debug"
"sync/atomic"
"time"
)
type ReferenceCount int32
var lastStackDump int64
func (r *ReferenceCount) Reset() {
*r = 1
}
func (r *ReferenceCount) AddReferenceCount() {
atomic.AddInt32((*int32)(r), 1)
}
func (r *ReferenceCount) AddReferenceCountN(n int32) {
atomic.AddInt32((*int32)(r), n)
}
func (r *ReferenceCount) SubReferenceCount() bool {
if atomic.AddInt32((*int32)(r), -1) > 0 {
return true
}
if *r != 0 {
now := time.Now().Unix()
last := atomic.LoadInt64(&lastStackDump)
if now-last > int64(time.Hour/time.Second) {
log.Errorf("reference (%d) maybe double released\n%s", *r, string(debug.Stack()))
atomic.StoreInt64(&lastStackDump, now)
}
}
return false
}
func (r *ReferenceCount) GetReferenceCount() int32 {
return atomic.LoadInt32((*int32)(r))
}