prometheus/tsdb/fileutil/mmap_unix.go
tyltr f97fa2736c remove obsolete build tag
Signed-off-by: tyltr <tylitianrui@126.com>
2024-01-17 22:26:32 +08:00

31 lines
884 B
Go

// Copyright 2017 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 !windows && !plan9 && !js
package fileutil
import (
"os"
"golang.org/x/sys/unix"
)
func mmap(f *os.File, length int) ([]byte, error) {
return unix.Mmap(int(f.Fd()), 0, length, unix.PROT_READ, unix.MAP_SHARED)
}
func munmap(b []byte) (err error) {
return unix.Munmap(b)
}