prometheus/tsdb/head_dedupelabels.go
Bryan Boreham 709c5d6fc3
TSDB: Lock around access to labels in head under -tags dedupelabels (#14322)
* TSDB: Document what needs locking in memSeries

* TSDB: Lock around access to series labels

So we can modify them to reset the symbol-table.

* TSDB: Make label locking conditional on build tag

---------

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2024-07-05 10:11:32 +01:00

28 lines
829 B
Go

// Copyright 2024 The Prometheus Authors
// 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.
//go:build dedupelabels
package tsdb
import (
"github.com/prometheus/prometheus/model/labels"
)
// Helper method to access labels under lock.
func (s *memSeries) labels() labels.Labels {
s.Lock()
defer s.Unlock()
return s.lset
}