2010-08-20 12:20:12 -06:00
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// Copyright 2009 The Go Authors. All rights reserved.
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2010-03-26 14:23:54 -06:00
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// BSD system call wrappers shared by *BSD based systems
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// including OS X (Darwin) and FreeBSD. Like the other
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// syscall_*.go files it is compiled as Go code but also
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// used as input to mksyscall which parses the //sys
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// lines and generates system call stubs.
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package syscall
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import "unsafe"
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/*
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* Pseudo-system calls
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*/
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// The const provides a compile-time constant so clients
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// can adjust to whether there is a working Getwd and avoid
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// even linking this function into the binary. See ../os/getwd.go.
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const ImplementsGetwd = false
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func Getwd() (string, int) { return "", ENOTSUP }
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/*
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* Wrapped
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*/
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2011-03-16 20:03:01 -06:00
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//sysnb getgroups(ngid int, gid *_Gid_t) (n int, errno int)
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//sysnb setgroups(ngid int, gid *_Gid_t) (errno int)
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2010-03-26 14:23:54 -06:00
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func Getgroups() (gids []int, errno int) {
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n, err := getgroups(0, nil)
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if err != 0 {
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return nil, errno
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}
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if n == 0 {
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return nil, 0
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}
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// Sanity check group count. Max is 16 on BSD.
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if n < 0 || n > 1000 {
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return nil, EINVAL
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}
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a := make([]_Gid_t, n)
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n, err = getgroups(n, &a[0])
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if err != 0 {
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return nil, errno
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}
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gids = make([]int, n)
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for i, v := range a[0:n] {
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gids[i] = int(v)
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}
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return
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}
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func Setgroups(gids []int) (errno int) {
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if len(gids) == 0 {
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return setgroups(0, nil)
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}
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a := make([]_Gid_t, len(gids))
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for i, v := range gids {
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a[i] = _Gid_t(v)
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}
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return setgroups(len(a), &a[0])
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}
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2011-04-06 13:44:40 -06:00
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func ReadDirent(fd int, buf []byte) (n int, errno int) {
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// Final argument is (basep *uintptr) and the syscall doesn't take nil.
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// TODO(rsc): Can we use a single global basep for all calls?
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return Getdirentries(fd, buf, new(uintptr))
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}
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2010-03-26 14:23:54 -06:00
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// Wait status is 7 bits at bottom, either 0 (exited),
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// 0x7F (stopped), or a signal number that caused an exit.
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// The 0x80 bit is whether there was a core dump.
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// An extra number (exit code, signal causing a stop)
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// is in the high bits.
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type WaitStatus uint32
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const (
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mask = 0x7F
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core = 0x80
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shift = 8
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exited = 0
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stopped = 0x7F
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)
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func (w WaitStatus) Exited() bool { return w&mask == exited }
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func (w WaitStatus) ExitStatus() int {
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if w&mask != exited {
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return -1
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}
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return int(w >> shift)
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}
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func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
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func (w WaitStatus) Signal() int {
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sig := int(w & mask)
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if sig == stopped || sig == 0 {
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return -1
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}
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return sig
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}
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func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
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func (w WaitStatus) Stopped() bool { return w&mask == stopped && w>>shift != SIGSTOP }
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func (w WaitStatus) Continued() bool { return w&mask == stopped && w>>shift == SIGSTOP }
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func (w WaitStatus) StopSignal() int {
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if !w.Stopped() {
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return -1
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}
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return int(w>>shift) & 0xFF
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}
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func (w WaitStatus) TrapCause() int { return -1 }
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//sys wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, errno int)
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func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, errno int) {
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var status _C_int
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wpid, errno = wait4(pid, &status, options, rusage)
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if wstatus != nil {
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*wstatus = WaitStatus(status)
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}
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return
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}
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2011-03-16 20:03:01 -06:00
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//sysnb pipe() (r int, w int, errno int)
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2010-03-26 14:23:54 -06:00
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func Pipe(p []int) (errno int) {
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if len(p) != 2 {
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return EINVAL
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}
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p[0], p[1], errno = pipe()
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return
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}
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func Sleep(ns int64) (errno int) {
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tv := NsecToTimeval(ns)
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return Select(0, nil, nil, nil, &tv)
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}
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//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, errno int)
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//sys bind(s int, addr uintptr, addrlen _Socklen) (errno int)
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//sys connect(s int, addr uintptr, addrlen _Socklen) (errno int)
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2011-03-16 20:03:01 -06:00
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//sysnb socket(domain int, typ int, proto int) (fd int, errno int)
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2011-03-25 12:43:59 -06:00
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//sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (errno int)
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2010-03-26 14:23:54 -06:00
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//sys setsockopt(s int, level int, name int, val uintptr, vallen int) (errno int)
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2011-03-16 20:03:01 -06:00
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//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
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//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
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2010-03-26 14:23:54 -06:00
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//sys Shutdown(s int, how int) (errno int)
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// For testing: clients can set this flag to force
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// creation of IPv6 sockets to return EAFNOSUPPORT.
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var SocketDisableIPv6 bool
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type Sockaddr interface {
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sockaddr() (ptr uintptr, len _Socklen, errno int) // lowercase; only we can define Sockaddrs
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}
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type SockaddrInet4 struct {
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Port int
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Addr [4]byte
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raw RawSockaddrInet4
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}
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func (sa *SockaddrInet4) sockaddr() (uintptr, _Socklen, int) {
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if sa.Port < 0 || sa.Port > 0xFFFF {
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return 0, 0, EINVAL
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}
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sa.raw.Len = SizeofSockaddrInet4
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sa.raw.Family = AF_INET
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p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
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p[0] = byte(sa.Port >> 8)
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p[1] = byte(sa.Port)
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for i := 0; i < len(sa.Addr); i++ {
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sa.raw.Addr[i] = sa.Addr[i]
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}
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return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
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}
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type SockaddrInet6 struct {
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2011-05-22 11:09:07 -06:00
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Port int
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ZoneId uint32
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Addr [16]byte
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raw RawSockaddrInet6
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2010-03-26 14:23:54 -06:00
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}
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func (sa *SockaddrInet6) sockaddr() (uintptr, _Socklen, int) {
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if sa.Port < 0 || sa.Port > 0xFFFF {
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return 0, 0, EINVAL
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}
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sa.raw.Len = SizeofSockaddrInet6
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sa.raw.Family = AF_INET6
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p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
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p[0] = byte(sa.Port >> 8)
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p[1] = byte(sa.Port)
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2011-05-22 11:09:07 -06:00
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sa.raw.Scope_id = sa.ZoneId
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2010-03-26 14:23:54 -06:00
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for i := 0; i < len(sa.Addr); i++ {
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sa.raw.Addr[i] = sa.Addr[i]
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}
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return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
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}
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type SockaddrUnix struct {
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Name string
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raw RawSockaddrUnix
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}
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func (sa *SockaddrUnix) sockaddr() (uintptr, _Socklen, int) {
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name := sa.Name
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n := len(name)
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if n >= len(sa.raw.Path) || n == 0 {
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return 0, 0, EINVAL
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}
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sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL
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sa.raw.Family = AF_UNIX
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for i := 0; i < n; i++ {
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sa.raw.Path[i] = int8(name[i])
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}
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return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
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}
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2011-02-11 12:34:00 -07:00
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func (sa *SockaddrDatalink) sockaddr() (uintptr, _Socklen, int) {
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if sa.Index == 0 {
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return 0, 0, EINVAL
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}
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sa.raw.Len = sa.Len
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sa.raw.Family = AF_LINK
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sa.raw.Index = sa.Index
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sa.raw.Type = sa.Type
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sa.raw.Nlen = sa.Nlen
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sa.raw.Alen = sa.Alen
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sa.raw.Slen = sa.Slen
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for i := 0; i < len(sa.raw.Data); i++ {
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sa.raw.Data[i] = sa.Data[i]
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}
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return uintptr(unsafe.Pointer(&sa.raw)), SizeofSockaddrDatalink, 0
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}
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2010-03-26 14:23:54 -06:00
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func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, int) {
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switch rsa.Addr.Family {
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2011-02-11 12:34:00 -07:00
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case AF_LINK:
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pp := (*RawSockaddrDatalink)(unsafe.Pointer(rsa))
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sa := new(SockaddrDatalink)
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sa.Len = pp.Len
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sa.Family = pp.Family
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sa.Index = pp.Index
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sa.Type = pp.Type
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sa.Nlen = pp.Nlen
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sa.Alen = pp.Alen
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sa.Slen = pp.Slen
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for i := 0; i < len(sa.Data); i++ {
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sa.Data[i] = pp.Data[i]
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}
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return sa, 0
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2010-03-26 14:23:54 -06:00
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case AF_UNIX:
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pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
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if pp.Len < 3 || pp.Len > SizeofSockaddrUnix {
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return nil, EINVAL
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}
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sa := new(SockaddrUnix)
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n := int(pp.Len) - 3 // subtract leading Family, Len, terminating NUL
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for i := 0; i < n; i++ {
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if pp.Path[i] == 0 {
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// found early NUL; assume Len is overestimating
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n = i
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break
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}
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}
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2010-07-01 18:49:28 -06:00
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bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
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sa.Name = string(bytes)
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2010-03-26 14:23:54 -06:00
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return sa, 0
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case AF_INET:
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pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
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sa := new(SockaddrInet4)
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p := (*[2]byte)(unsafe.Pointer(&pp.Port))
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sa.Port = int(p[0])<<8 + int(p[1])
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for i := 0; i < len(sa.Addr); i++ {
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sa.Addr[i] = pp.Addr[i]
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}
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return sa, 0
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case AF_INET6:
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pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
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sa := new(SockaddrInet6)
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p := (*[2]byte)(unsafe.Pointer(&pp.Port))
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sa.Port = int(p[0])<<8 + int(p[1])
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2011-05-22 11:09:07 -06:00
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sa.ZoneId = pp.Scope_id
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2010-03-26 14:23:54 -06:00
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for i := 0; i < len(sa.Addr); i++ {
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sa.Addr[i] = pp.Addr[i]
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}
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return sa, 0
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}
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return nil, EAFNOSUPPORT
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}
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func Accept(fd int) (nfd int, sa Sockaddr, errno int) {
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var rsa RawSockaddrAny
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var len _Socklen = SizeofSockaddrAny
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nfd, errno = accept(fd, &rsa, &len)
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if errno != 0 {
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return
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}
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sa, errno = anyToSockaddr(&rsa)
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if errno != 0 {
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Close(nfd)
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nfd = 0
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}
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return
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}
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func Getsockname(fd int) (sa Sockaddr, errno int) {
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var rsa RawSockaddrAny
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var len _Socklen = SizeofSockaddrAny
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if errno = getsockname(fd, &rsa, &len); errno != 0 {
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return
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}
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return anyToSockaddr(&rsa)
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}
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func Getpeername(fd int) (sa Sockaddr, errno int) {
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var rsa RawSockaddrAny
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var len _Socklen = SizeofSockaddrAny
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if errno = getpeername(fd, &rsa, &len); errno != 0 {
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return
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}
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return anyToSockaddr(&rsa)
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}
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func Bind(fd int, sa Sockaddr) (errno int) {
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ptr, n, err := sa.sockaddr()
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if err != 0 {
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return err
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}
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return bind(fd, ptr, n)
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}
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func Connect(fd int, sa Sockaddr) (errno int) {
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ptr, n, err := sa.sockaddr()
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if err != 0 {
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return err
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}
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return connect(fd, ptr, n)
|
|
|
|
}
|
|
|
|
|
|
|
|
func Socket(domain, typ, proto int) (fd, errno int) {
|
|
|
|
if domain == AF_INET6 && SocketDisableIPv6 {
|
|
|
|
return -1, EAFNOSUPPORT
|
|
|
|
}
|
|
|
|
fd, errno = socket(domain, typ, proto)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
|
2011-03-16 20:03:01 -06:00
|
|
|
//sysnb socketpair(domain int, typ int, proto int, fd *[2]int) (errno int)
|
2010-09-24 12:59:34 -06:00
|
|
|
|
2010-06-30 15:58:21 -06:00
|
|
|
func Socketpair(domain, typ, proto int) (fd [2]int, errno int) {
|
2010-09-24 12:59:34 -06:00
|
|
|
errno = socketpair(domain, typ, proto, &fd)
|
2010-06-30 15:58:21 -06:00
|
|
|
return
|
|
|
|
}
|
|
|
|
|
2011-03-25 12:43:59 -06:00
|
|
|
func GetsockoptInt(fd, level, opt int) (value, errno int) {
|
|
|
|
var n int32
|
|
|
|
vallen := _Socklen(4)
|
|
|
|
errno = getsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), &vallen)
|
|
|
|
return int(n), errno
|
|
|
|
}
|
|
|
|
|
2010-03-26 14:23:54 -06:00
|
|
|
func SetsockoptInt(fd, level, opt int, value int) (errno int) {
|
|
|
|
var n = int32(value)
|
|
|
|
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), 4)
|
|
|
|
}
|
|
|
|
|
|
|
|
func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (errno int) {
|
|
|
|
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(tv)), unsafe.Sizeof(*tv))
|
|
|
|
}
|
|
|
|
|
|
|
|
func SetsockoptLinger(fd, level, opt int, l *Linger) (errno int) {
|
|
|
|
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(l)), unsafe.Sizeof(*l))
|
|
|
|
}
|
|
|
|
|
2011-02-03 12:15:35 -07:00
|
|
|
func SetsockoptIpMreq(fd, level, opt int, mreq *IpMreq) (errno int) {
|
|
|
|
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(mreq)), unsafe.Sizeof(*mreq))
|
|
|
|
}
|
|
|
|
|
2010-03-26 14:23:54 -06:00
|
|
|
func SetsockoptString(fd, level, opt int, s string) (errno int) {
|
|
|
|
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&[]byte(s)[0])), len(s))
|
|
|
|
}
|
|
|
|
|
|
|
|
//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, errno int)
|
|
|
|
|
|
|
|
func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, errno int) {
|
|
|
|
var rsa RawSockaddrAny
|
|
|
|
var len _Socklen = SizeofSockaddrAny
|
|
|
|
if n, errno = recvfrom(fd, p, flags, &rsa, &len); errno != 0 {
|
|
|
|
return
|
|
|
|
}
|
|
|
|
from, errno = anyToSockaddr(&rsa)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
|
|
|
|
//sys sendto(s int, buf []byte, flags int, to uintptr, addrlen _Socklen) (errno int)
|
|
|
|
|
|
|
|
func Sendto(fd int, p []byte, flags int, to Sockaddr) (errno int) {
|
|
|
|
ptr, n, err := to.sockaddr()
|
|
|
|
if err != 0 {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
return sendto(fd, p, flags, ptr, n)
|
|
|
|
}
|
|
|
|
|
2010-05-20 10:39:35 -06:00
|
|
|
// TODO:
|
|
|
|
// FreeBSD has IP_SENDIF. Darwin probably needs BSDLLCTest, see:
|
|
|
|
// http://developer.apple.com/mac/library/samplecode/BSDLLCTest/index.html
|
|
|
|
|
|
|
|
// BindToDevice binds the socket associated with fd to device.
|
|
|
|
func BindToDevice(fd int, device string) (errno int) {
|
|
|
|
return ENOSYS
|
|
|
|
}
|
|
|
|
|
2010-03-26 14:23:54 -06:00
|
|
|
//sys kevent(kq int, change uintptr, nchange int, event uintptr, nevent int, timeout *Timespec) (n int, errno int)
|
|
|
|
|
|
|
|
func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, errno int) {
|
|
|
|
var change, event uintptr
|
|
|
|
if len(changes) > 0 {
|
|
|
|
change = uintptr(unsafe.Pointer(&changes[0]))
|
|
|
|
}
|
|
|
|
if len(events) > 0 {
|
|
|
|
event = uintptr(unsafe.Pointer(&events[0]))
|
|
|
|
}
|
|
|
|
return kevent(kq, change, len(changes), event, len(events), timeout)
|
|
|
|
}
|
|
|
|
|
|
|
|
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (errno int) = SYS___SYSCTL
|
|
|
|
|
|
|
|
// Translate "kern.hostname" to []_C_int{0,1,2,3}.
|
|
|
|
func nametomib(name string) (mib []_C_int, errno int) {
|
|
|
|
const siz = uintptr(unsafe.Sizeof(mib[0]))
|
|
|
|
|
|
|
|
// NOTE(rsc): It seems strange to set the buffer to have
|
|
|
|
// size CTL_MAXNAME+2 but use only CTL_MAXNAME
|
|
|
|
// as the size. I don't know why the +2 is here, but the
|
|
|
|
// kernel uses +2 for its own implementation of this function.
|
|
|
|
// I am scared that if we don't include the +2 here, the kernel
|
|
|
|
// will silently write 2 words farther than we specify
|
|
|
|
// and we'll get memory corruption.
|
|
|
|
var buf [CTL_MAXNAME + 2]_C_int
|
|
|
|
n := uintptr(CTL_MAXNAME) * siz
|
|
|
|
|
|
|
|
p := (*byte)(unsafe.Pointer(&buf[0]))
|
|
|
|
bytes := StringByteSlice(name)
|
|
|
|
|
|
|
|
// Magic sysctl: "setting" 0.3 to a string name
|
|
|
|
// lets you read back the array of integers form.
|
|
|
|
if errno = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); errno != 0 {
|
|
|
|
return nil, errno
|
|
|
|
}
|
|
|
|
return buf[0 : n/siz], 0
|
|
|
|
}
|
|
|
|
|
|
|
|
func Sysctl(name string) (value string, errno int) {
|
|
|
|
// Translate name to mib number.
|
|
|
|
mib, errno := nametomib(name)
|
|
|
|
if errno != 0 {
|
|
|
|
return "", errno
|
|
|
|
}
|
|
|
|
|
|
|
|
// Find size.
|
|
|
|
n := uintptr(0)
|
|
|
|
if errno = sysctl(mib, nil, &n, nil, 0); errno != 0 {
|
|
|
|
return "", errno
|
|
|
|
}
|
|
|
|
if n == 0 {
|
|
|
|
return "", 0
|
|
|
|
}
|
|
|
|
|
|
|
|
// Read into buffer of that size.
|
|
|
|
buf := make([]byte, n)
|
|
|
|
if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
|
|
|
|
return "", errno
|
|
|
|
}
|
|
|
|
|
|
|
|
// Throw away terminating NUL.
|
|
|
|
if n > 0 && buf[n-1] == '\x00' {
|
|
|
|
n--
|
|
|
|
}
|
|
|
|
return string(buf[0:n]), 0
|
|
|
|
}
|
|
|
|
|
|
|
|
func SysctlUint32(name string) (value uint32, errno int) {
|
|
|
|
// Translate name to mib number.
|
|
|
|
mib, errno := nametomib(name)
|
|
|
|
if errno != 0 {
|
|
|
|
return 0, errno
|
|
|
|
}
|
|
|
|
|
|
|
|
// Read into buffer of that size.
|
|
|
|
n := uintptr(4)
|
|
|
|
buf := make([]byte, 4)
|
|
|
|
if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
|
|
|
|
return 0, errno
|
|
|
|
}
|
|
|
|
if n != 4 {
|
|
|
|
return 0, EIO
|
|
|
|
}
|
|
|
|
return *(*uint32)(unsafe.Pointer(&buf[0])), 0
|
|
|
|
}
|
|
|
|
|
2011-02-11 12:34:00 -07:00
|
|
|
func SysctlNetRoute(fourth, fifth, sixth int) (value []byte, errno int) {
|
|
|
|
mib := []_C_int{CTL_NET, AF_ROUTE, 0, _C_int(fourth), _C_int(fifth), _C_int(sixth)}
|
|
|
|
|
|
|
|
// Find size.
|
|
|
|
n := uintptr(0)
|
|
|
|
if errno = sysctl(mib, nil, &n, nil, 0); errno != 0 {
|
|
|
|
return nil, errno
|
|
|
|
}
|
|
|
|
if n == 0 {
|
|
|
|
return nil, 0
|
|
|
|
}
|
|
|
|
|
|
|
|
// Read into buffer of that size.
|
|
|
|
b := make([]byte, n)
|
|
|
|
if errno = sysctl(mib, &b[0], &n, nil, 0); errno != 0 {
|
|
|
|
return nil, errno
|
|
|
|
}
|
|
|
|
|
|
|
|
return b[0:n], 0
|
|
|
|
}
|
|
|
|
|
2010-05-19 18:47:57 -06:00
|
|
|
//sys utimes(path string, timeval *[2]Timeval) (errno int)
|
|
|
|
func Utimes(path string, tv []Timeval) (errno int) {
|
|
|
|
if len(tv) != 2 {
|
|
|
|
return EINVAL
|
|
|
|
}
|
|
|
|
return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
|
|
|
|
}
|
|
|
|
|
|
|
|
//sys futimes(fd int, timeval *[2]Timeval) (errno int)
|
|
|
|
func Futimes(fd int, tv []Timeval) (errno int) {
|
|
|
|
if len(tv) != 2 {
|
|
|
|
return EINVAL
|
|
|
|
}
|
|
|
|
return futimes(fd, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
|
|
|
|
}
|
|
|
|
|
|
|
|
//sys fcntl(fd int, cmd int, arg int) (val int, errno int)
|
|
|
|
|
2011-01-19 12:34:53 -07:00
|
|
|
func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, errno int) {
|
|
|
|
return 0, 0, 0, nil, EAFNOSUPPORT
|
2010-12-07 11:40:14 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (errno int) {
|
|
|
|
return EAFNOSUPPORT
|
|
|
|
}
|
2010-05-19 18:47:57 -06:00
|
|
|
|
2010-03-26 14:23:54 -06:00
|
|
|
// TODO: wrap
|
|
|
|
// Acct(name nil-string) (errno int)
|
|
|
|
// Gethostuuid(uuid *byte, timeout *Timespec) (errno int)
|
|
|
|
// Madvise(addr *byte, len int, behav int) (errno int)
|
|
|
|
// Mprotect(addr *byte, len int, prot int) (errno int)
|
|
|
|
// Msync(addr *byte, len int, flags int) (errno int)
|
|
|
|
// Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, errno int)
|
2011-04-06 15:52:02 -06:00
|
|
|
|
|
|
|
//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, errno int)
|
|
|
|
//sys munmap(addr uintptr, length uintptr) (errno int)
|
|
|
|
|
|
|
|
var mapper = &mmapper{
|
|
|
|
active: make(map[*byte][]byte),
|
|
|
|
mmap: mmap,
|
|
|
|
munmap: munmap,
|
|
|
|
}
|
|
|
|
|
|
|
|
func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, errno int) {
|
|
|
|
return mapper.Mmap(fd, offset, length, prot, flags)
|
|
|
|
}
|
|
|
|
|
|
|
|
func Munmap(b []byte) (errno int) {
|
|
|
|
return mapper.Munmap(b)
|
|
|
|
}
|