48 lines
1.8 KiB
Go
48 lines
1.8 KiB
Go
// Copyright 2018 The gVisor Authors.
|
|
//
|
|
// 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.
|
|
|
|
// +build amd64 arm64
|
|
|
|
// Package atomicbitops provides extensions to the sync/atomic package.
|
|
//
|
|
// All read-modify-write operations implemented by this package have
|
|
// acquire-release memory ordering (like sync/atomic).
|
|
package atomicbitops
|
|
|
|
// AndUint32 atomically applies bitwise AND operation to *addr with val.
|
|
func AndUint32(addr *uint32, val uint32)
|
|
|
|
// OrUint32 atomically applies bitwise OR operation to *addr with val.
|
|
func OrUint32(addr *uint32, val uint32)
|
|
|
|
// XorUint32 atomically applies bitwise XOR operation to *addr with val.
|
|
func XorUint32(addr *uint32, val uint32)
|
|
|
|
// CompareAndSwapUint32 is like sync/atomic.CompareAndSwapUint32, but returns
|
|
// the value previously stored at addr.
|
|
func CompareAndSwapUint32(addr *uint32, old, new uint32) uint32
|
|
|
|
// AndUint64 atomically applies bitwise AND operation to *addr with val.
|
|
func AndUint64(addr *uint64, val uint64)
|
|
|
|
// OrUint64 atomically applies bitwise OR operation to *addr with val.
|
|
func OrUint64(addr *uint64, val uint64)
|
|
|
|
// XorUint64 atomically applies bitwise XOR operation to *addr with val.
|
|
func XorUint64(addr *uint64, val uint64)
|
|
|
|
// CompareAndSwapUint64 is like sync/atomic.CompareAndSwapUint64, but returns
|
|
// the value previously stored at addr.
|
|
func CompareAndSwapUint64(addr *uint64, old, new uint64) uint64
|