Andrea Campanella | 3614a92 | 2021-02-25 12:40:42 +0100 | [diff] [blame] | 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 | |
| 9 | package unix |
| 10 | |
| 11 | import "unsafe" |
| 12 | |
| 13 | func 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 | |
| 29 | func 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 | |
| 37 | func 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 | |
| 45 | func 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 | |
| 53 | func 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 | |
| 59 | //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) = libsocket.accept4 |
| 60 | |
| 61 | func Accept4(fd int, flags int) (nfd int, sa Sockaddr, err error) { |
| 62 | var rsa RawSockaddrAny |
| 63 | var len _Socklen = SizeofSockaddrAny |
| 64 | nfd, err = accept4(fd, &rsa, &len, flags) |
| 65 | if err != nil { |
| 66 | return |
| 67 | } |
| 68 | if len > SizeofSockaddrAny { |
| 69 | panic("RawSockaddrAny too small") |
| 70 | } |
| 71 | sa, err = anyToSockaddr(fd, &rsa) |
| 72 | if err != nil { |
| 73 | Close(nfd) |
| 74 | nfd = 0 |
| 75 | } |
| 76 | return |
| 77 | } |
| 78 | |
| 79 | //sysnb pipe2(p *[2]_C_int, flags int) (err error) |
| 80 | |
| 81 | func Pipe2(p []int, flags int) error { |
| 82 | if len(p) != 2 { |
| 83 | return EINVAL |
| 84 | } |
| 85 | var pp [2]_C_int |
| 86 | err := pipe2(&pp, flags) |
| 87 | p[0] = int(pp[0]) |
| 88 | p[1] = int(pp[1]) |
| 89 | return err |
| 90 | } |