1// Copyright 2015 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
5package syscall
6
7import (
8	"internal/abi"
9	"unsafe"
10)
11
12func setTimespec(sec, nsec int64) Timespec {
13	return Timespec{Sec: sec, Nsec: nsec}
14}
15
16func setTimeval(sec, usec int64) Timeval {
17	return Timeval{Sec: sec, Usec: int32(usec)}
18}
19
20//sys	Fstat(fd int, stat *Stat_t) (err error)
21//sys	Fstatfs(fd int, stat *Statfs_t) (err error)
22//sysnb	Gettimeofday(tp *Timeval) (err error)
23//sys	Lstat(path string, stat *Stat_t) (err error)
24//sys	Stat(path string, stat *Stat_t) (err error)
25//sys	Statfs(path string, stat *Statfs_t) (err error)
26//sys	fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
27//sys	ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
28
29func SetKevent(k *Kevent_t, fd, mode, flags int) {
30	k.Ident = uint64(fd)
31	k.Filter = int16(mode)
32	k.Flags = uint16(flags)
33}
34
35func (iov *Iovec) SetLen(length int) {
36	iov.Len = uint64(length)
37}
38
39func (msghdr *Msghdr) SetControllen(length int) {
40	msghdr.Controllen = uint32(length)
41}
42
43func (cmsg *Cmsghdr) SetLen(length int) {
44	cmsg.Len = uint32(length)
45}
46
47func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
48	var length = uint64(count)
49
50	_, _, e1 := syscall6(abi.FuncPCABI0(libc_sendfile_trampoline), uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(unsafe.Pointer(&length)), 0, 0)
51
52	written = int(length)
53
54	if e1 != 0 {
55		err = e1
56	}
57	return
58}
59
60func libc_sendfile_trampoline()
61
62//go:cgo_import_dynamic libc_sendfile sendfile "/usr/lib/libSystem.B.dylib"
63
64// Implemented in the runtime package (runtime/sys_darwin_64.go)
65func syscallX(fn, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
66
67func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno) // sic
68