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      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 package syscall
      6 
      7 func Getpagesize() int { return 4096 }
      8 
      9 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
     10 
     11 func NsecToTimespec(nsec int64) (ts Timespec) {
     12 	ts.Sec = int64(nsec / 1e9)
     13 	ts.Nsec = int32(nsec % 1e9)
     14 	return
     15 }
     16 
     17 func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 }
     18 
     19 func NsecToTimeval(nsec int64) (tv Timeval) {
     20 	nsec += 999 // round up to microsecond
     21 	tv.Usec = int32(nsec % 1e9 / 1e3)
     22 	tv.Sec = int64(nsec / 1e9)
     23 	return
     24 }
     25 
     26 func 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 
     32 func (iov *Iovec) SetLen(length int) {
     33 	iov.Len = uint32(length)
     34 }
     35 
     36 func (msghdr *Msghdr) SetControllen(length int) {
     37 	msghdr.Controllen = uint32(length)
     38 }
     39 
     40 func (cmsg *Cmsghdr) SetLen(length int) {
     41 	cmsg.Len = uint32(length)
     42 }
     43