Source file src/internal/poll/fd_writev_unix.go

     1	// Copyright 2018 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	// +build dragonfly freebsd linux netbsd openbsd
     6	
     7	package poll
     8	
     9	import (
    10		"syscall"
    11		"unsafe"
    12	)
    13	
    14	func writev(fd int, iovecs []syscall.Iovec) (uintptr, error) {
    15		r, _, e := syscall.Syscall(syscall.SYS_WRITEV, uintptr(fd), uintptr(unsafe.Pointer(&iovecs[0])), uintptr(len(iovecs)))
    16		if e != 0 {
    17			return r, syscall.Errno(e)
    18		}
    19		return r, nil
    20	}
    21	

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