// 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) }