| // Copyright 2009 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package syscall |
| |
| import "unsafe" |
| |
| func Getpagesize() int { return 4096 } |
| |
| func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } |
| |
| func NsecToTimespec(nsec int64) (ts Timespec) { |
| ts.Sec = nsec / 1e9 |
| ts.Nsec = nsec % 1e9 |
| return |
| } |
| |
| func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 } |
| |
| func NsecToTimeval(nsec int64) (tv Timeval) { |
| nsec += 999 // round up to microsecond |
| tv.Usec = int32(nsec % 1e9 / 1e3) |
| tv.Sec = int64(nsec / 1e9) |
| return |
| } |
| |
| //sysnb gettimeofday(tp *Timeval) (sec int64, usec int32, err error) |
| func Gettimeofday(tv *Timeval) (err error) { |
| // The tv passed to gettimeofday must be non-nil |
| // but is otherwise unused. The answers come back |
| // in the two registers. |
| sec, usec, err := gettimeofday(tv) |
| tv.Sec = sec |
| tv.Usec = usec |
| return err |
| } |
| |
| func SetKevent(k *Kevent_t, fd, mode, flags int) { |
| k.Ident = uint64(fd) |
| k.Filter = int16(mode) |
| k.Flags = uint16(flags) |
| } |
| |
| func (iov *Iovec) SetLen(length int) { |
| iov.Len = uint64(length) |
| } |
| |
| func (msghdr *Msghdr) SetControllen(length int) { |
| msghdr.Controllen = uint32(length) |
| } |
| |
| func (cmsg *Cmsghdr) SetLen(length int) { |
| cmsg.Len = uint32(length) |
| } |
| |
| func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { |
| var length = uint64(count) |
| |
| _, _, e1 := Syscall6(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(unsafe.Pointer(&length)), 0, 0) |
| |
| written = int(length) |
| |
| if e1 != 0 { |
| err = e1 |
| } |
| return |
| } |
| |
| func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno) |
