mirror of
https://github.com/rclone/rclone.git
synced 2024-12-02 13:25:51 +01:00
36 lines
873 B
Go
36 lines
873 B
Go
// Copyright (C) 2015 Space Monkey, 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 monkit
|
|
|
|
import (
|
|
"runtime"
|
|
"sync/atomic"
|
|
)
|
|
|
|
type spinLock uint32
|
|
|
|
func (s *spinLock) Lock() {
|
|
for {
|
|
if atomic.CompareAndSwapUint32((*uint32)(s), 0, 1) {
|
|
return
|
|
}
|
|
runtime.Gosched()
|
|
}
|
|
}
|
|
|
|
func (s *spinLock) Unlock() {
|
|
atomic.StoreUint32((*uint32)(s), 0)
|
|
}
|