1// Copyright 2009 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 "unsafe"
8
9func setTimespec(sec, nsec int64) Timespec {
10	return Timespec{Sec: sec, Nsec: nsec}
11}
12
13func setTimeval(sec, usec int64) Timeval {
14	return Timeval{Sec: sec, Usec: int32(usec)}
15}
16
17//sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_fstat64
18//sys	Fstatfs(fd int, stat *Statfs_t) (err error) = SYS_fstatfs64
19//sysnb	Gettimeofday(tp *Timeval) (err error)
20//sys	Lstat(path string, stat *Stat_t) (err error) = SYS_lstat64
21//sys	Stat(path string, stat *Stat_t) (err error) = SYS_stat64
22//sys	Statfs(path string, stat *Statfs_t) (err error) = SYS_statfs64
23//sys   fstatat(fd int, path string, stat *Stat_t, flags int) (err error) = SYS_fstatat64
24//sys   ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
25
26func SetKevent(k *Kevent_t, fd, mode, flags int) {
27	k.Ident = uint64(fd)
28	k.Filter = int16(mode)
29	k.Flags = uint16(flags)
30}
31
32func (iov *Iovec) SetLen(length int) {
33	iov.Len = uint64(length)
34}
35
36func (msghdr *Msghdr) SetControllen(length int) {
37	msghdr.Controllen = uint32(length)
38}
39
40func (cmsg *Cmsghdr) SetLen(length int) {
41	cmsg.Len = uint32(length)
42}
43
44func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
45	var length = uint64(count)
46
47	_, _, e1 := syscall6(funcPC(libc_sendfile_trampoline), uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(unsafe.Pointer(&length)), 0, 0)
48
49	written = int(length)
50
51	if e1 != 0 {
52		err = e1
53	}
54	return
55}
56
57func libc_sendfile_trampoline()
58
59//go:linkname libc_sendfile libc_sendfile
60//go:cgo_import_dynamic libc_sendfile sendfile "/usr/lib/libSystem.B.dylib"
61
62// Implemented in the runtime package (runtime/sys_darwin_64.go)
63func syscallX(fn, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
64
65func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno)
66