// Copyright 2026 Alibaba Group
// 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

package auth

import (
	"os"
	"syscall"
)

func lockFile(f *os.File) error {
	return syscall.Flock(int(f.Fd()), syscall.LOCK_EX|syscall.LOCK_NB)
}

func unlockFile(f *os.File) {
	_ = syscall.Flock(int(f.Fd()), syscall.LOCK_UN)
}