github.com/juelite/golang.org-x-sys@v0.0.0-20181121071242-7b69e1c5db33/unix/syscall_darwin_arm64.go (about) 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 // +build arm64,darwin 6 7 package unix 8 9 import ( 10 "syscall" 11 "unsafe" 12 ) 13 14 func Getpagesize() int { return 16384 } 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 = int32(nsec % 1e9 / 1e3) 27 tv.Sec = int64(nsec / 1e9) 28 return 29 } 30 31 //sysnb gettimeofday(tp *Timeval) (sec int64, 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 = sec 38 tv.Usec = usec 39 return err 40 } 41 42 func SetKevent(k *Kevent_t, fd, mode, flags int) { 43 k.Ident = uint64(fd) 44 k.Filter = int16(mode) 45 k.Flags = uint16(flags) 46 } 47 48 func (iov *Iovec) SetLen(length int) { 49 iov.Len = uint64(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 := Syscall6(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(unsafe.Pointer(&length)), 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 74 75 // SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions 76 // of darwin/arm64 the syscall is called sysctl instead of __sysctl. 77 const SYS___SYSCTL = SYS_SYSCTL