sharedmem_unsafe.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.

package sharedmem

import (
	"unsafe"
)

// sharedDataPointer converts the shared data slice into a pointer so that it
// can be used in atomic operations.
func sharedDataPointer(sharedData []byte) *uint32 {
	return (*uint32)(unsafe.Pointer(&sharedData[0:4][0]))
}