mirror of https://github.com/perkeep/perkeep.git
56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
/*
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Copyright 2013 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package types
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import (
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"sync/atomic"
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)
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// AtomicBool is an atomic boolean.
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// It can be accessed from concurrent goroutines.
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type AtomicBool struct {
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v uint32 // 0 or 1, atomically
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}
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func (b *AtomicBool) Get() bool {
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return atomic.LoadUint32(&b.v) != 0
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}
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func (b *AtomicBool) Set(v bool) {
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if v {
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atomic.StoreUint32(&b.v, 1)
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return
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}
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atomic.StoreUint32(&b.v, 0)
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}
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type AtomicInt64 struct {
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v int64
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}
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func (a *AtomicInt64) Get() int64 {
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return atomic.LoadInt64(&a.v)
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}
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func (a *AtomicInt64) Set(v int64) {
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atomic.StoreInt64(&a.v, v)
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}
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func (a *AtomicInt64) Add(delta int64) int64 {
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return atomic.AddInt64(&a.v, delta)
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}
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