1// Copyright 2015 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5// +build darwin dragonfly freebsd netbsd openbsd solaris
6
7// BSD library calls.
8
9package syscall
10
11import (
12	"internal/race"
13	"unsafe"
14)
15
16func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
17	if race.Enabled {
18		race.ReleaseMerge(unsafe.Pointer(&ioSync))
19	}
20	var soff Offset_t
21	var psoff *Offset_t
22	if offset != nil {
23		soff = Offset_t(*offset)
24		psoff = &soff
25	}
26	written, err = sendfile(outfd, infd, psoff, count)
27	if offset != nil {
28		*offset = int64(soff)
29	}
30	return
31}
32