github.com/graybobo/golang.org-package-offline-cache@v0.0.0-20200626051047-6608995c132f/x/sys/unix/syscall_darwin_amd64.go (about) 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,darwin 6 7 package unix 8 9 import ( 10 "syscall" 11 "unsafe" 12 ) 13 14 //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) 15 16 func Getpagesize() int { return 4096 } 17 18 func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } 19 20 func NsecToTimespec(nsec int64) (ts Timespec) { 21 ts.Sec = nsec / 1e9 22 ts.Nsec = nsec % 1e9 23 return 24 } 25 26 func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 } 27 28 func NsecToTimeval(nsec int64) (tv Timeval) { 29 nsec += 999 // round up to microsecond 30 tv.Usec = int32(nsec % 1e9 / 1e3) 31 tv.Sec = int64(nsec / 1e9) 32 return 33 } 34 35 //sysnb gettimeofday(tp *Timeval) (sec int64, usec int32, err error) 36 func Gettimeofday(tv *Timeval) (err error) { 37 // The tv passed to gettimeofday must be non-nil 38 // but is otherwise unused. The answers come back 39 // in the two registers. 40 sec, usec, err := gettimeofday(tv) 41 tv.Sec = sec 42 tv.Usec = usec 43 return err 44 } 45 46 func SetKevent(k *Kevent_t, fd, mode, flags int) { 47 k.Ident = uint64(fd) 48 k.Filter = int16(mode) 49 k.Flags = uint16(flags) 50 } 51 52 func (iov *Iovec) SetLen(length int) { 53 iov.Len = uint64(length) 54 } 55 56 func (msghdr *Msghdr) SetControllen(length int) { 57 msghdr.Controllen = uint32(length) 58 } 59 60 func (cmsg *Cmsghdr) SetLen(length int) { 61 cmsg.Len = uint32(length) 62 } 63 64 func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 65 var length = uint64(count) 66 67 _, _, e1 := Syscall6(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(unsafe.Pointer(&length)), 0, 0) 68 69 written = int(length) 70 71 if e1 != 0 { 72 err = e1 73 } 74 return 75 } 76 77 func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) 78 79 // SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions 80 // of darwin/amd64 the syscall is called sysctl instead of __sysctl. 81 const SYS___SYSCTL = SYS_SYSCTL