]>
Commit | Line | Data |
---|---|---|
9b12e4fe JC |
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 | ||
5 | package unix | |
6 | ||
7 | import ( | |
8 | "syscall" | |
9 | "unsafe" | |
10 | ) | |
11 | ||
12 | func Getpagesize() int { return 4096 } | |
13 | ||
14 | func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } | |
15 | ||
16 | func NsecToTimespec(nsec int64) (ts Timespec) { | |
17 | ts.Sec = int32(nsec / 1e9) | |
18 | ts.Nsec = int32(nsec % 1e9) | |
19 | return | |
20 | } | |
21 | ||
22 | func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 } | |
23 | ||
24 | func NsecToTimeval(nsec int64) (tv Timeval) { | |
25 | nsec += 999 // round up to microsecond | |
26 | tv.Usec = int32(nsec % 1e9 / 1e3) | |
27 | tv.Sec = int32(nsec / 1e9) | |
28 | return | |
29 | } | |
30 | ||
31 | //sysnb gettimeofday(tp *Timeval) (sec int32, usec int32, err error) | |
32 | func Gettimeofday(tv *Timeval) (err error) { | |
33 | // The tv passed to gettimeofday must be non-nil | |
34 | // but is otherwise unused. The answers come back | |
35 | // in the two registers. | |
36 | sec, usec, err := gettimeofday(tv) | |
37 | tv.Sec = int32(sec) | |
38 | tv.Usec = int32(usec) | |
39 | return err | |
40 | } | |
41 | ||
42 | func SetKevent(k *Kevent_t, fd, mode, flags int) { | |
43 | k.Ident = uint32(fd) | |
44 | k.Filter = int16(mode) | |
45 | k.Flags = uint16(flags) | |
46 | } | |
47 | ||
48 | func (iov *Iovec) SetLen(length int) { | |
49 | iov.Len = uint32(length) | |
50 | } | |
51 | ||
52 | func (msghdr *Msghdr) SetControllen(length int) { | |
53 | msghdr.Controllen = uint32(length) | |
54 | } | |
55 | ||
56 | func (cmsg *Cmsghdr) SetLen(length int) { | |
57 | cmsg.Len = uint32(length) | |
58 | } | |
59 | ||
60 | func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { | |
61 | var length = uint64(count) | |
62 | ||
63 | _, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(*offset>>32), uintptr(unsafe.Pointer(&length)), 0, 0, 0, 0) | |
64 | ||
65 | written = int(length) | |
66 | ||
67 | if e1 != 0 { | |
68 | err = e1 | |
69 | } | |
70 | return | |
71 | } | |
72 | ||
73 | func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) // sic |