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 386,darwin 6 7 package unix 8 9 import ( 10 "syscall" 11 "unsafe" 12 ) 13 14 func setTimespec(sec, nsec int64) Timespec { 15 return Timespec{Sec: int32(sec), Nsec: int32(nsec)} 16 } 17 18 func setTimeval(sec, usec int64) Timeval { 19 return Timeval{Sec: int32(sec), Usec: int32(usec)} 20 } 21 22 //sysnb gettimeofday(tp *Timeval) (sec int32, usec int32, err error) 23 func Gettimeofday(tv *Timeval) (err error) { 24 // The tv passed to gettimeofday must be non-nil 25 // but is otherwise unused. The answers come back 26 // in the two registers. 27 sec, usec, err := gettimeofday(tv) 28 tv.Sec = int32(sec) 29 tv.Usec = int32(usec) 30 return err 31 } 32 33 func SetKevent(k *Kevent_t, fd, mode, flags int) { 34 k.Ident = uint32(fd) 35 k.Filter = int16(mode) 36 k.Flags = uint16(flags) 37 } 38 39 func (iov *Iovec) SetLen(length int) { 40 iov.Len = uint32(length) 41 } 42 43 func (msghdr *Msghdr) SetControllen(length int) { 44 msghdr.Controllen = uint32(length) 45 } 46 47 func (cmsg *Cmsghdr) SetLen(length int) { 48 cmsg.Len = uint32(length) 49 } 50 51 func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 52 var length = uint64(count) 53 54 _, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(*offset>>32), uintptr(unsafe.Pointer(&length)), 0, 0, 0, 0) 55 56 written = int(length) 57 58 if e1 != 0 { 59 err = e1 60 } 61 return 62 } 63 64 func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) 65 66 // SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions 67 // of darwin/386 the syscall is called sysctl instead of __sysctl. 68 const SYS___SYSCTL = SYS_SYSCTL 69
