73 lines
2.0 KiB
Go
73 lines
2.0 KiB
Go
// Copyright 2021 The gVisor Authors.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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//go:build !arm && !mips && !386
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// +build !arm,!mips,!386
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package atomicbitops
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import "sync/atomic"
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// AlignedAtomicInt64 is an atomic int64 that is guaranteed to be 64-bit
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// aligned, even on 32-bit systems. On most architectures, it's just a regular
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// int64.
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//
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// See aligned_unsafe.go in this directory for justification.
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//
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// +stateify savable
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type AlignedAtomicInt64 struct {
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value int64
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}
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// Load is analagous to atomic.LoadInt64.
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func (aa *AlignedAtomicInt64) Load() int64 {
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return atomic.LoadInt64(&aa.value)
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}
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// Store is analagous to atomic.StoreInt64.
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func (aa *AlignedAtomicInt64) Store(v int64) {
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atomic.StoreInt64(&aa.value, v)
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}
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// Add is analagous to atomic.AddInt64.
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func (aa *AlignedAtomicInt64) Add(v int64) int64 {
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return atomic.AddInt64(&aa.value, v)
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}
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// AlignedAtomicUint64 is an atomic uint64 that is guaranteed to be 64-bit
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// aligned, even on 32-bit systems. On most architectures, it's just a regular
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// uint64.
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//
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// See aligned_unsafe.go in this directory for justification.
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//
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// +stateify savable
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type AlignedAtomicUint64 struct {
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value uint64
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}
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// Load is analagous to atomic.LoadUint64.
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func (aa *AlignedAtomicUint64) Load() uint64 {
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return atomic.LoadUint64(&aa.value)
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}
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// Store is analagous to atomic.StoreUint64.
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func (aa *AlignedAtomicUint64) Store(v uint64) {
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atomic.StoreUint64(&aa.value, v)
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}
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// Add is analagous to atomic.AddUint64.
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func (aa *AlignedAtomicUint64) Add(v uint64) uint64 {
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return atomic.AddUint64(&aa.value, v)
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}
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