Plan 9 from Bell Labs’s /usr/web/sources/contrib/stallion/root/arm/go/src/internal/poll/fd_writev_unix.go

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Distributed under the MIT License.
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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// +build dragonfly freebsd linux netbsd openbsd

package poll

import (
	"syscall"
	"unsafe"
)

func writev(fd int, iovecs []syscall.Iovec) (uintptr, error) {
	r, _, e := syscall.Syscall(syscall.SYS_WRITEV, uintptr(fd), uintptr(unsafe.Pointer(&iovecs[0])), uintptr(len(iovecs)))
	if e != 0 {
		return r, syscall.Errno(e)
	}
	return r, nil
}

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