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: int32(sec), Nsec: int32(nsec)}
11}
12
13func setTimeval(sec, usec int64) Timeval {
14	return Timeval{Sec: int32(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 = uint32(fd)
28	k.Filter = int16(mode)
29	k.Flags = uint16(flags)
30}
31
32func (iov *Iovec) SetLen(length int) {
33	iov.Len = uint32(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 := Syscall9(funcPC(libc_sendfile_trampoline), uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(*offset>>32), uintptr(unsafe.Pointer(&length)), 0, 0, 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_32.go)
63func syscall9(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno)
64
65func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno) // sic
66