|  | // Copyright 2019 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. | 
|  |  | 
|  | package syscall | 
|  |  | 
|  | import "unsafe" | 
|  |  | 
|  | func setTimespec(sec, nsec int64) Timespec { | 
|  | return Timespec{Sec: sec, Nsec: nsec} | 
|  | } | 
|  |  | 
|  | func setTimeval(sec, usec int64) Timeval { | 
|  | return Timeval{Sec: sec, Usec: usec} | 
|  | } | 
|  |  | 
|  | func SetKevent(k *Kevent_t, fd, mode, flags int) { | 
|  | k.Ident = uint64(fd) | 
|  | k.Filter = int16(mode) | 
|  | k.Flags = uint16(flags) | 
|  | } | 
|  |  | 
|  | func (iov *Iovec) SetLen(length int) { | 
|  | iov.Len = uint64(length) | 
|  | } | 
|  |  | 
|  | func (msghdr *Msghdr) SetControllen(length int) { | 
|  | msghdr.Controllen = uint32(length) | 
|  | } | 
|  |  | 
|  | func (cmsg *Cmsghdr) SetLen(length int) { | 
|  | cmsg.Len = uint32(length) | 
|  | } | 
|  |  | 
|  | func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { | 
|  | var writtenOut uint64 = 0 | 
|  | _, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(count), 0, uintptr(unsafe.Pointer(&writtenOut)), 0, 0, 0) | 
|  |  | 
|  | written = int(writtenOut) | 
|  |  | 
|  | if e1 != 0 { | 
|  | err = e1 | 
|  | } | 
|  | return | 
|  | } | 
|  |  | 
|  | func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno) |