mirror of
https://github.com/rwinkhart/sys.git
synced 2026-08-28 04:46:44 -04:00
Araragi Hokuto
328b4cd54a
iovec read/writes (readv, writev, preadv, pwritev) are present on illumos, but they weren't added to the package. This commit adds those missing features. Updates golang/go#36201 Change-Id: Iecf2bab7ef846f5ca5d693e833491d819618c15d GitHub-Last-Rev: 81a479f4c5f851f81e748cef6eb529c3f89cd1e1 GitHub-Pull-Request: golang/sys#64 Reviewed-on: https://go-review.googlesource.com/c/sys/+/224238 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// illumos system calls not present on Solaris.
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// +build amd64,illumos
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package unix
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import "unsafe"
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func bytes2iovec(bs [][]byte) []Iovec {
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iovecs := make([]Iovec, len(bs))
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for i, b := range bs {
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iovecs[i].SetLen(len(b))
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if len(b) > 0 {
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// somehow Iovec.Base on illumos is (*int8), not (*byte)
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iovecs[i].Base = (*int8)(unsafe.Pointer(&b[0]))
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} else {
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iovecs[i].Base = (*int8)(unsafe.Pointer(&_zero))
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}
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}
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return iovecs
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}
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//sys readv(fd int, iovs []Iovec) (n int, err error)
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func Readv(fd int, iovs [][]byte) (n int, err error) {
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iovecs := bytes2iovec(iovs)
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n, err = readv(fd, iovecs)
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return n, err
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}
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//sys preadv(fd int, iovs []Iovec, off int64) (n int, err error)
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func Preadv(fd int, iovs [][]byte, off int64) (n int, err error) {
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iovecs := bytes2iovec(iovs)
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n, err = preadv(fd, iovecs, off)
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return n, err
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}
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//sys writev(fd int, iovs []Iovec) (n int, err error)
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func Writev(fd int, iovs [][]byte) (n int, err error) {
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iovecs := bytes2iovec(iovs)
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n, err = writev(fd, iovecs)
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return n, err
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}
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//sys pwritev(fd int, iovs []Iovec, off int64) (n int, err error)
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func Pwritev(fd int, iovs [][]byte, off int64) (n int, err error) {
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iovecs := bytes2iovec(iovs)
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n, err = pwritev(fd, iovecs, off)
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return n, err
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}
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