go-aptproxy/vendor/golang.org/x/net/internal/socket/race.go
2021-11-16 19:19:12 +01:00

39 lines
907 B
Go

// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build race
// +build race
package socket
import (
"runtime"
"unsafe"
)
// This package reads and writes the Message buffers using a
// direct system call, which the race detector can't see.
// These functions tell the race detector what is going on during the syscall.
func (m *Message) raceRead() {
for _, b := range m.Buffers {
if len(b) > 0 {
runtime.RaceReadRange(unsafe.Pointer(&b[0]), len(b))
}
}
if b := m.OOB; len(b) > 0 {
runtime.RaceReadRange(unsafe.Pointer(&b[0]), len(b))
}
}
func (m *Message) raceWrite() {
for _, b := range m.Buffers {
if len(b) > 0 {
runtime.RaceWriteRange(unsafe.Pointer(&b[0]), len(b))
}
}
if b := m.OOB; len(b) > 0 {
runtime.RaceWriteRange(unsafe.Pointer(&b[0]), len(b))
}
}