| David K. Bainbridge | 215e024 | 2017-09-05 23:18:24 -0700 | [diff] [blame^] | 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 | |
| 5 | // +build amd64,dragonfly |
| 6 | |
| 7 | package unix |
| 8 | |
| 9 | import ( |
| 10 | "syscall" |
| 11 | "unsafe" |
| 12 | ) |
| 13 | |
| 14 | func Getpagesize() int { return 4096 } |
| 15 | |
| 16 | func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } |
| 17 | |
| 18 | func NsecToTimespec(nsec int64) (ts Timespec) { |
| 19 | ts.Sec = nsec / 1e9 |
| 20 | ts.Nsec = nsec % 1e9 |
| 21 | return |
| 22 | } |
| 23 | |
| 24 | func NsecToTimeval(nsec int64) (tv Timeval) { |
| 25 | nsec += 999 // round up to microsecond |
| 26 | tv.Usec = nsec % 1e9 / 1e3 |
| 27 | tv.Sec = int64(nsec / 1e9) |
| 28 | return |
| 29 | } |
| 30 | |
| 31 | func SetKevent(k *Kevent_t, fd, mode, flags int) { |
| 32 | k.Ident = uint64(fd) |
| 33 | k.Filter = int16(mode) |
| 34 | k.Flags = uint16(flags) |
| 35 | } |
| 36 | |
| 37 | func (iov *Iovec) SetLen(length int) { |
| 38 | iov.Len = uint64(length) |
| 39 | } |
| 40 | |
| 41 | func (msghdr *Msghdr) SetControllen(length int) { |
| 42 | msghdr.Controllen = uint32(length) |
| 43 | } |
| 44 | |
| 45 | func (cmsg *Cmsghdr) SetLen(length int) { |
| 46 | cmsg.Len = uint32(length) |
| 47 | } |
| 48 | |
| 49 | func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { |
| 50 | var writtenOut uint64 = 0 |
| 51 | _, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(count), 0, uintptr(unsafe.Pointer(&writtenOut)), 0, 0, 0) |
| 52 | |
| 53 | written = int(writtenOut) |
| 54 | |
| 55 | if e1 != 0 { |
| 56 | err = e1 |
| 57 | } |
| 58 | return |
| 59 | } |
| 60 | |
| 61 | func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) |