github.com/zuoyebang/bitalosdb@v1.1.1-0.20240516111551-79a8c4d8ce20/internal/cache/lrucache/clockpro_tracing.go (about)

     1  // Copyright 2021 The Bitalosdb author(hustxrb@163.com) and other contributors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  //go:build tracing
    16  // +build tracing
    17  
    18  package lrucache
    19  
    20  import (
    21  	"fmt"
    22  	"runtime/debug"
    23  )
    24  
    25  func (c *Cache) trace(msg string, refs int64) {
    26  	s := fmt.Sprintf("%s: refs=%d\n%s", msg, refs, debug.Stack())
    27  	c.tr.Lock()
    28  	c.tr.msgs = append(c.tr.msgs, s)
    29  	c.tr.Unlock()
    30  }