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1 // Copyright 2021 The Go Authors. All rights reserved.
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2 // Use of this source code is governed by a BSD-style
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3 // license that can be found in the LICENSE file.
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4
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5 // illumos system calls not present on Solaris.
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6
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7 //go:build amd64 && illumos
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8 // +build amd64,illumos
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9
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10 package unix
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11
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12 import (
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13 "unsafe"
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14 )
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15
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16 func bytes2iovec(bs [][]byte) []Iovec {
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17 iovecs := make([]Iovec, len(bs))
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18 for i, b := range bs {
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19 iovecs[i].SetLen(len(b))
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20 if len(b) > 0 {
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21 iovecs[i].Base = &b[0]
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22 } else {
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23 iovecs[i].Base = (*byte)(unsafe.Pointer(&_zero))
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24 }
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25 }
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26 return iovecs
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27 }
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28
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29 //sys readv(fd int, iovs []Iovec) (n int, err error)
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30
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31 func Readv(fd int, iovs [][]byte) (n int, err error) {
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32 iovecs := bytes2iovec(iovs)
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33 n, err = readv(fd, iovecs)
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34 return n, err
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35 }
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36
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37 //sys preadv(fd int, iovs []Iovec, off int64) (n int, err error)
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38
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39 func Preadv(fd int, iovs [][]byte, off int64) (n int, err error) {
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40 iovecs := bytes2iovec(iovs)
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41 n, err = preadv(fd, iovecs, off)
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42 return n, err
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43 }
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44
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45 //sys writev(fd int, iovs []Iovec) (n int, err error)
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46
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47 func Writev(fd int, iovs [][]byte) (n int, err error) {
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48 iovecs := bytes2iovec(iovs)
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49 n, err = writev(fd, iovecs)
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50 return n, err
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51 }
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52
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53 //sys pwritev(fd int, iovs []Iovec, off int64) (n int, err error)
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54
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55 func Pwritev(fd int, iovs [][]byte, off int64) (n int, err error) {
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56 iovecs := bytes2iovec(iovs)
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57 n, err = pwritev(fd, iovecs, off)
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58 return n, err
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59 }
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60
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61 //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) = libsocket.accept4
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62
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63 func Accept4(fd int, flags int) (nfd int, sa Sockaddr, err error) {
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64 var rsa RawSockaddrAny
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65 var len _Socklen = SizeofSockaddrAny
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66 nfd, err = accept4(fd, &rsa, &len, flags)
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67 if err != nil {
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68 return
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69 }
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70 if len > SizeofSockaddrAny {
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71 panic("RawSockaddrAny too small")
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72 }
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73 sa, err = anyToSockaddr(fd, &rsa)
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74 if err != nil {
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75 Close(nfd)
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76 nfd = 0
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77 }
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78 return
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79 }
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