github.com/nicocha30/gvisor-ligolo@v0.0.0-20230726075806-989fa2c0a413/pkg/buffer/view_unsafe.go (about)

     1  // Copyright 2020 The gVisor Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package buffer
    16  
    17  import (
    18  	"reflect"
    19  	"unsafe"
    20  )
    21  
    22  // BasePtr returns a pointer to the view's chunk.
    23  func (v *View) BasePtr() *byte {
    24  	hdr := (*reflect.SliceHeader)(unsafe.Pointer(&v.chunk.data))
    25  	return (*byte)(unsafe.Pointer(hdr.Data))
    26  }