1// Copyright 2009 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// illumos system calls not present on Solaris.
6
7// +build amd64,illumos
8
9package unix
10
11import "unsafe"
12
13func bytes2iovec(bs [][]byte) []Iovec {
14	iovecs := make([]Iovec, len(bs))
15	for i, b := range bs {
16		iovecs[i].SetLen(len(b))
17		if len(b) > 0 {
18			// somehow Iovec.Base on illumos is (*int8), not (*byte)
19			iovecs[i].Base = (*int8)(unsafe.Pointer(&b[0]))
20		} else {
21			iovecs[i].Base = (*int8)(unsafe.Pointer(&_zero))
22		}
23	}
24	return iovecs
25}
26
27//sys   readv(fd int, iovs []Iovec) (n int, err error)
28
29func Readv(fd int, iovs [][]byte) (n int, err error) {
30	iovecs := bytes2iovec(iovs)
31	n, err = readv(fd, iovecs)
32	return n, err
33}
34
35//sys   preadv(fd int, iovs []Iovec, off int64) (n int, err error)
36
37func Preadv(fd int, iovs [][]byte, off int64) (n int, err error) {
38	iovecs := bytes2iovec(iovs)
39	n, err = preadv(fd, iovecs, off)
40	return n, err
41}
42
43//sys   writev(fd int, iovs []Iovec) (n int, err error)
44
45func Writev(fd int, iovs [][]byte) (n int, err error) {
46	iovecs := bytes2iovec(iovs)
47	n, err = writev(fd, iovecs)
48	return n, err
49}
50
51//sys   pwritev(fd int, iovs []Iovec, off int64) (n int, err error)
52
53func Pwritev(fd int, iovs [][]byte, off int64) (n int, err error) {
54	iovecs := bytes2iovec(iovs)
55	n, err = pwritev(fd, iovecs, off)
56	return n, err
57}
58