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net: initial attempt to implement windows version
R=rsc, Mateusz Czaplinski CC=golang-dev https://golang.org/cl/1600041
This commit is contained in:
Alex Brainman
Russ Cox
parent
829896168c
commit
bb9261bf3b
7 changed files with 861 additions and 48 deletions
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@ -128,6 +128,8 @@ func getSysProcAddr(m uint32, pname string) uintptr {
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//sys SetEndOfFile(handle int32) (ok bool, errno int)
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//sys GetSystemTimeAsFileTime(time *Filetime)
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//sys sleep(msec uint32) = Sleep
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//sys CreateIoCompletionPort(filehandle int32, cphandle int32, key uint32, threadcnt uint32) (handle int32, errno int)
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//sys GetQueuedCompletionStatus(cphandle int32, qty *uint32, key *uint32, overlapped **Overlapped, timeout uint32) (ok bool, errno int)
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// syscall interface implementation for other packages
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@ -382,6 +384,191 @@ func Utimes(path string, tv []Timeval) (errno int) {
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return EWINDOWS
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}
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// net api calls
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//sys WSAStartup(verreq uint32, data *WSAData) (sockerrno int) = wsock32.WSAStartup
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//sys WSACleanup() (errno int) [failretval=-1] = wsock32.WSACleanup
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//sys socket(af int32, typ int32, protocol int32) (handle int32, errno int) [failretval=-1] = wsock32.socket
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//sys setsockopt(s int32, level int32, optname int32, optval *byte, optlen int32) (errno int) [failretval=-1] = wsock32.setsockopt
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//sys bind(s int32, name uintptr, namelen int32) (errno int) [failretval=-1] = wsock32.bind
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//sys connect(s int32, name uintptr, namelen int32) (errno int) [failretval=-1] = wsock32.connect
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//sys getsockname(s int32, rsa *RawSockaddrAny, addrlen *int32) (errno int) [failretval=-1] = wsock32.getsockname
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//sys getpeername(s int32, rsa *RawSockaddrAny, addrlen *int32) (errno int) [failretval=-1] = wsock32.getpeername
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//sys listen(s int32, backlog int32) (errno int) [failretval=-1] = wsock32.listen
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//sys shutdown(s int32, how int32) (errno int) [failretval=-1] = wsock32.shutdown
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//sys AcceptEx(ls uint32, as uint32, buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, recvd *uint32, overlapped *Overlapped) (ok bool, errno int) = wsock32.AcceptEx
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//sys GetAcceptExSockaddrs(buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, lrsa **RawSockaddrAny, lrsalen *int32, rrsa **RawSockaddrAny, rrsalen *int32) = wsock32.GetAcceptExSockaddrs
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//sys WSARecv(s uint32, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, overlapped *Overlapped, croutine *byte) (errno int) [failretval=-1] = ws2_32.WSARecv
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//sys WSASend(s uint32, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (errno int) [failretval=-1] = ws2_32.WSASend
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type RawSockaddrInet4 struct {
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Family uint16
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Port uint16
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Addr [4]byte /* in_addr */
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Zero [8]uint8
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}
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type RawSockaddr struct {
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Family uint16
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Data [14]int8
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}
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type RawSockaddrAny struct {
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Addr RawSockaddr
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Pad [96]int8
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}
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type Sockaddr interface {
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sockaddr() (ptr uintptr, len int32, 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, int32, 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.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)), int32(unsafe.Sizeof(sa.raw)), 0
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}
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type SockaddrInet6 struct {
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Port int
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Addr [16]byte
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}
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func (sa *SockaddrInet6) sockaddr() (uintptr, int32, int) {
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// TODO(brainman): implement SockaddrInet6.sockaddr()
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return 0, 0, EWINDOWS
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}
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type SockaddrUnix struct {
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Name string
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}
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func (sa *SockaddrUnix) sockaddr() (uintptr, int32, int) {
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// TODO(brainman): implement SockaddrUnix.sockaddr()
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return 0, 0, EWINDOWS
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}
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func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, int) {
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switch rsa.Addr.Family {
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case AF_UNIX:
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return nil, EWINDOWS
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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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return nil, EWINDOWS
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}
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return nil, EAFNOSUPPORT
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}
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func Socket(domain, typ, proto int) (fd, errno int) {
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h, e := socket(int32(domain), int32(typ), int32(proto))
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return int(h), int(e)
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}
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func SetsockoptInt(fd, level, opt int, value int) (errno int) {
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v := int32(value)
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return int(setsockopt(int32(fd), int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), int32(unsafe.Sizeof(v))))
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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(int32(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(int32(fd), ptr, n)
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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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l := int32(unsafe.Sizeof(rsa))
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if errno = getsockname(int32(fd), &rsa, &l); errno != 0 {
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return
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}
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return rsa.Sockaddr()
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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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l := int32(unsafe.Sizeof(rsa))
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if errno = getpeername(int32(fd), &rsa, &l); errno != 0 {
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return
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}
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return rsa.Sockaddr()
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}
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func Listen(s int, n int) (errno int) {
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return int(listen(int32(s), int32(n)))
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}
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func Shutdown(fd, how int) (errno int) {
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return int(shutdown(int32(fd), int32(how)))
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}
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func AcceptIOCP(iocpfd, fd int, o *Overlapped) (attrs *byte, errno int) {
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// Will ask for local and remote address only.
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rsa := make([]RawSockaddrAny, 2)
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attrs = (*byte)(unsafe.Pointer(&rsa[0]))
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alen := uint32(unsafe.Sizeof(rsa[0]))
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var done uint32
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_, errno = AcceptEx(uint32(iocpfd), uint32(fd), attrs, 0, alen, alen, &done, o)
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return
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}
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func GetAcceptIOCPSockaddrs(attrs *byte) (lsa, rsa Sockaddr) {
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var lrsa, rrsa *RawSockaddrAny
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var llen, rlen int32
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alen := uint32(unsafe.Sizeof(*lrsa))
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GetAcceptExSockaddrs(attrs, 0, alen, alen, &lrsa, &llen, &rrsa, &rlen)
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lsa, _ = lrsa.Sockaddr()
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rsa, _ = rrsa.Sockaddr()
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return
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}
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// TODO(brainman): fix all needed for net
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func Accept(fd int) (nfd int, sa Sockaddr, errno int) { return 0, nil, EWINDOWS }
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func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, errno int) { return 0, nil, EWINDOWS }
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func Sendto(fd int, p []byte, flags int, to Sockaddr) (errno int) { return EWINDOWS }
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func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (errno int) { return EWINDOWS }
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type Linger struct {
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Onoff int32
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Linger int32
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}
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func SetsockoptLinger(fd, level, opt int, l *Linger) (errno int) { return EWINDOWS }
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func BindToDevice(fd int, device string) (errno int) { return EWINDOWS }
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// TODO(brainman): fix all needed for os
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const (
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