tidb tracker 源码
tidb tracker 代码
文件路径：/util/disk/tracker.go
// Copyright 2019 PingCAP, 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 disk
import (
"github.com/pingcap/tidb/util/memory"
)
// Tracker is used to track the disk usage during query execution.
type Tracker = memory.Tracker
// NewTracker creates a disk tracker.
// 1. "label" is the label used in the usage string.
// 2. "bytesLimit <= 0" means no limit.
var NewTracker = memory.NewTracker
// NewGlobalTrcaker creates a global disk tracker.
var NewGlobalTrcaker = memory.NewGlobalTracker
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