blob: b425337bf5031aed6d625b75adb39bf07ebe2f57 [file] [log] [blame]
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Windows system calls.
package syscall
import (
"unsafe"
"utf16"
)
const OS = "windows"
/*
small demo to detect version of windows you are running:
package main
import (
"syscall"
)
func abort(funcname string, err int) {
panic(funcname + " failed: " + syscall.Errstr(err))
}
func print_version(v uint32) {
major := byte(v)
minor := uint8(v >> 8)
build := uint16(v >> 16)
print("windows version ", major, ".", minor, " (Build ", build, ")\n")
}
func main() {
h, err := syscall.LoadLibrary("kernel32.dll")
if err != 0 {
abort("LoadLibrary", err)
}
defer syscall.FreeLibrary(h)
proc, err := syscall.GetProcAddress(h, "GetVersion")
if err != 0 {
abort("GetProcAddress", err)
}
r, _, _ := syscall.Syscall(uintptr(proc), 0, 0, 0)
print_version(uint32(r))
}
*/
// StringToUTF16 returns the UTF-16 encoding of the UTF-8 string s,
// with a terminating NUL added.
func StringToUTF16(s string) []uint16 { return utf16.Encode([]int(s + "\x00")) }
// UTF16ToString returns the UTF-8 encoding of the UTF-16 sequence s,
// with a terminating NUL removed.
func UTF16ToString(s []uint16) string {
for i, v := range s {
if v == 0 {
s = s[0:i]
break
}
}
return string(utf16.Decode(s))
}
// StringToUTF16Ptr returns pointer to the UTF-16 encoding of
// the UTF-8 string s, with a terminating NUL added.
func StringToUTF16Ptr(s string) *uint16 { return &StringToUTF16(s)[0] }
// dll helpers
// implemented in ../pkg/runtime/windows/syscall.cgo
func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2, lasterr uintptr)
func Syscall12(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12 uintptr) (r1, r2, lasterr uintptr)
func loadlibraryex(filename uintptr) (handle uint32)
func getprocaddress(handle uint32, procname uintptr) (proc uintptr)
func loadDll(fname string) uint32 {
m := loadlibraryex(uintptr(unsafe.Pointer(StringBytePtr(fname))))
if m == 0 {
panic("syscall: could not LoadLibraryEx " + fname)
}
return m
}
func getSysProcAddr(m uint32, pname string) uintptr {
p := getprocaddress(m, uintptr(unsafe.Pointer(StringBytePtr(pname))))
if p == 0 {
panic("syscall: could not GetProcAddress for " + pname)
}
return p
}
// windows api calls
//sys GetLastError() (lasterrno int)
//sys LoadLibrary(libname string) (handle uint32, errno int) = LoadLibraryW
//sys FreeLibrary(handle uint32) (ok bool, errno int)
//sys GetProcAddress(module uint32, procname string) (proc uint32, errno int)
//sys GetVersion() (ver uint32, errno int)
//sys FormatMessage(flags uint32, msgsrc uint32, msgid uint32, langid uint32, buf []uint16, args *byte) (n uint32, errno int) = FormatMessageW
//sys ExitProcess(exitcode uint32)
//sys CreateFile(name *uint16, access uint32, mode uint32, sa *byte, createmode uint32, attrs uint32, templatefile int32) (handle int32, errno int) [failretval==-1] = CreateFileW
//sys ReadFile(handle int32, buf []byte, done *uint32, overlapped *Overlapped) (ok bool, errno int)
//sys WriteFile(handle int32, buf []byte, done *uint32, overlapped *Overlapped) (ok bool, errno int)
//sys SetFilePointer(handle int32, lowoffset int32, highoffsetptr *int32, whence uint32) (newlowoffset uint32, errno int) [failretval==0xffffffff]
//sys CloseHandle(handle int32) (ok bool, errno int)
//sys GetStdHandle(stdhandle int32) (handle int32, errno int) [failretval==-1]
//sys FindFirstFile(name *uint16, data *Win32finddata) (handle int32, errno int) [failretval==-1] = FindFirstFileW
//sys FindNextFile(handle int32, data *Win32finddata) (ok bool, errno int) = FindNextFileW
//sys FindClose(handle int32) (ok bool, errno int)
//sys GetFileInformationByHandle(handle int32, data *ByHandleFileInformation) (ok bool, errno int)
//sys GetCurrentDirectory(buflen uint32, buf *uint16) (n uint32, errno int) = GetCurrentDirectoryW
//sys SetCurrentDirectory(path *uint16) (ok bool, errno int) = SetCurrentDirectoryW
//sys CreateDirectory(path *uint16, sa *byte) (ok bool, errno int) = CreateDirectoryW
//sys RemoveDirectory(path *uint16) (ok bool, errno int) = RemoveDirectoryW
//sys DeleteFile(path *uint16) (ok bool, errno int) = DeleteFileW
//sys MoveFile(from *uint16, to *uint16) (ok bool, errno int) = MoveFileW
//sys GetComputerName(buf *uint16, n *uint32) (ok bool, errno int) = GetComputerNameW
//sys SetEndOfFile(handle int32) (ok bool, errno int)
//sys GetSystemTimeAsFileTime(time *Filetime)
//sys sleep(msec uint32) = Sleep
//sys GetTimeZoneInformation(tzi *Timezoneinformation) (rc uint32, errno int) [failretval==0xffffffff]
//sys CreateIoCompletionPort(filehandle int32, cphandle int32, key uint32, threadcnt uint32) (handle int32, errno int)
//sys GetQueuedCompletionStatus(cphandle int32, qty *uint32, key *uint32, overlapped **Overlapped, timeout uint32) (ok bool, errno int)
//sys CreateProcess(appName *int16, commandLine *uint16, procSecurity *int16, threadSecurity *int16, inheritHandles bool, creationFlags uint32, env *uint16, currentDir *uint16, startupInfo *StartupInfo, outProcInfo *ProcessInformation) (ok bool, errno int) = CreateProcessW
//sys GetStartupInfo(startupInfo *StartupInfo) (ok bool, errno int) = GetStartupInfoW
//sys GetCurrentProcess() (pseudoHandle int32, errno int)
//sys DuplicateHandle(hSourceProcessHandle int32, hSourceHandle int32, hTargetProcessHandle int32, lpTargetHandle *int32, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (ok bool, errno int)
//sys WaitForSingleObject(handle int32, waitMilliseconds uint32) (event uint32, errno int) [failretval==0xffffffff]
//sys GetTempPath(buflen uint32, buf *uint16) (n uint32, errno int) = GetTempPathW
//sys CreatePipe(readhandle *uint32, writehandle *uint32, lpsa *byte, size uint32) (ok bool, errno int)
//sys GetFileType(filehandle uint32) (n uint32, errno int)
//sys CryptAcquireContext(provhandle *uint32, container *uint16, provider *uint16, provtype uint32, flags uint32) (ok bool, errno int) = advapi32.CryptAcquireContextW
//sys CryptReleaseContext(provhandle uint32, flags uint32) (ok bool, errno int) = advapi32.CryptReleaseContext
//sys CryptGenRandom(provhandle uint32, buflen uint32, buf *byte) (ok bool, errno int) = advapi32.CryptGenRandom
//sys OpenProcess(da uint32,b int, pid uint32) (handle uint32, errno int)
//sys GetExitCodeProcess(h uint32, c *uint32) (ok bool, errno int)
//sys GetEnvironmentStrings() (envs *uint16, errno int) [failretval==nil] = kernel32.GetEnvironmentStringsW
//sys FreeEnvironmentStrings(envs *uint16) (ok bool, errno int) = kernel32.FreeEnvironmentStringsW
//sys GetEnvironmentVariable(name *uint16, buffer *uint16, size uint32) (n uint32, errno int) = kernel32.GetEnvironmentVariableW
//sys SetEnvironmentVariable(name *uint16, value *uint16) (ok bool, errno int) = kernel32.SetEnvironmentVariableW
//sys SetFileTime(handle int32, ctime *Filetime, atime *Filetime, wtime *Filetime) (ok bool, errno int)
//sys GetFileAttributes(name *uint16) (attrs uint32, errno int) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.GetFileAttributesW
//sys GetCommandLine() (cmd *uint16) = kernel32.GetCommandLineW
//sys CommandLineToArgv(cmd *uint16, argc *int32) (argv *[8192]*[8192]uint16, errno int) [failretval==nil] = shell32.CommandLineToArgvW
//sys LocalFree(hmem uint32) (handle uint32, errno int) [failretval!=0]
// syscall interface implementation for other packages
func Errstr(errno int) string {
// deal with special go errors
e := errno - APPLICATION_ERROR
if 0 <= e && e < len(errors) {
return errors[e]
}
// ask windows for the remaining errors
var flags uint32 = FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ARGUMENT_ARRAY | FORMAT_MESSAGE_IGNORE_INSERTS
b := make([]uint16, 300)
n, err := FormatMessage(flags, 0, uint32(errno), 0, b, nil)
if err != 0 {
return "error " + str(errno) + " (FormatMessage failed with err=" + str(err) + ")"
}
// trim terminating \r and \n
for ; n > 0 && (b[n-1] == '\n' || b[n-1] == '\r'); n-- {
}
return string(utf16.Decode(b[:n]))
}
func Exit(code int) { ExitProcess(uint32(code)) }
func Open(path string, mode int, perm uint32) (fd int, errno int) {
if len(path) == 0 {
return -1, ERROR_FILE_NOT_FOUND
}
var access uint32
switch mode & (O_RDONLY | O_WRONLY | O_RDWR) {
case O_RDONLY:
access = GENERIC_READ
case O_WRONLY:
access = GENERIC_WRITE
case O_RDWR:
access = GENERIC_READ | GENERIC_WRITE
}
if mode&O_CREAT != 0 {
access |= GENERIC_WRITE
}
if mode&O_APPEND != 0 {
access &^= GENERIC_WRITE
access |= FILE_APPEND_DATA
}
sharemode := uint32(FILE_SHARE_READ | FILE_SHARE_WRITE)
var createmode uint32
switch {
case mode&O_CREAT != 0:
if mode&O_EXCL != 0 {
createmode = CREATE_NEW
} else {
createmode = CREATE_ALWAYS
}
case mode&O_TRUNC != 0:
createmode = TRUNCATE_EXISTING
default:
createmode = OPEN_EXISTING
}
h, e := CreateFile(StringToUTF16Ptr(path), access, sharemode, nil, createmode, FILE_ATTRIBUTE_NORMAL, 0)
return int(h), int(e)
}
func Read(fd int, p []byte) (n int, errno int) {
var done uint32
if ok, e := ReadFile(int32(fd), p, &done, nil); !ok {
if e == ERROR_BROKEN_PIPE {
// NOTE(brainman): work around ERROR_BROKEN_PIPE is returned on reading EOF from stdin
return 0, 0
}
return 0, e
}
return int(done), 0
}
// TODO(brainman): ReadFile/WriteFile change file offset, therefore
// i use Seek here to preserve semantics of unix pread/pwrite,
// not sure if I should do that
func Pread(fd int, p []byte, offset int64) (n int, errno int) {
curoffset, e := Seek(fd, 0, 1)
if e != 0 {
return 0, e
}
defer Seek(fd, curoffset, 0)
var o Overlapped
o.OffsetHigh = uint32(offset >> 32)
o.Offset = uint32(offset)
var done uint32
if ok, e := ReadFile(int32(fd), p, &done, &o); !ok {
return 0, e
}
return int(done), 0
}
func Write(fd int, p []byte) (n int, errno int) {
var done uint32
if ok, e := WriteFile(int32(fd), p, &done, nil); !ok {
return 0, e
}
return int(done), 0
}
func Pwrite(fd int, p []byte, offset int64) (n int, errno int) {
curoffset, e := Seek(fd, 0, 1)
if e != 0 {
return 0, e
}
defer Seek(fd, curoffset, 0)
var o Overlapped
o.OffsetHigh = uint32(offset >> 32)
o.Offset = uint32(offset)
var done uint32
if ok, e := WriteFile(int32(fd), p, &done, &o); !ok {
return 0, e
}
return int(done), 0
}
func Seek(fd int, offset int64, whence int) (newoffset int64, errno int) {
var w uint32
switch whence {
case 0:
w = FILE_BEGIN
case 1:
w = FILE_CURRENT
case 2:
w = FILE_END
}
hi := int32(offset >> 32)
lo := int32(offset)
// use GetFileType to check pipe, pipe can't do seek
ft, _ := GetFileType(uint32(fd))
if ft == FILE_TYPE_PIPE {
return 0, EPIPE
}
rlo, e := SetFilePointer(int32(fd), lo, &hi, w)
if e != 0 {
return 0, e
}
return int64(hi)<<32 + int64(rlo), 0
}
func Close(fd int) (errno int) {
if ok, e := CloseHandle(int32(fd)); !ok {
return e
}
return 0
}
var (
Stdin = getStdHandle(STD_INPUT_HANDLE)
Stdout = getStdHandle(STD_OUTPUT_HANDLE)
Stderr = getStdHandle(STD_ERROR_HANDLE)
)
func getStdHandle(h int32) (fd int) {
r, _ := GetStdHandle(h)
return int(r)
}
func Stat(path string, stat *Stat_t) (errno int) {
if len(path) == 0 {
return ERROR_PATH_NOT_FOUND
}
// Remove trailing slash.
if path[len(path)-1] == '/' || path[len(path)-1] == '\\' {
// Check if we're given root directory ("\" or "c:\").
if len(path) == 1 || (len(path) == 3 && path[1] == ':') {
// TODO(brainman): Perhaps should fetch other fields, not just FileAttributes.
stat.Windata = Win32finddata{}
a, e := GetFileAttributes(StringToUTF16Ptr(path))
if e != 0 {
return e
}
stat.Windata.FileAttributes = a
return 0
}
path = path[:len(path)-1]
}
h, e := FindFirstFile(StringToUTF16Ptr(path), &stat.Windata)
if e != 0 {
return e
}
defer FindClose(h)
stat.Mode = 0
return 0
}
func Lstat(path string, stat *Stat_t) (errno int) {
// no links on windows, just call Stat
return Stat(path, stat)
}
const ImplementsGetwd = true
func Getwd() (wd string, errno int) {
b := make([]uint16, 300)
n, e := GetCurrentDirectory(uint32(len(b)), &b[0])
if e != 0 {
return "", e
}
return string(utf16.Decode(b[0:n])), 0
}
func Chdir(path string) (errno int) {
if ok, e := SetCurrentDirectory(&StringToUTF16(path)[0]); !ok {
return e
}
return 0
}
func Mkdir(path string, mode uint32) (errno int) {
if ok, e := CreateDirectory(&StringToUTF16(path)[0], nil); !ok {
return e
}
return 0
}
func Rmdir(path string) (errno int) {
if ok, e := RemoveDirectory(&StringToUTF16(path)[0]); !ok {
return e
}
return 0
}
func Unlink(path string) (errno int) {
if ok, e := DeleteFile(&StringToUTF16(path)[0]); !ok {
return e
}
return 0
}
func Rename(oldpath, newpath string) (errno int) {
from := &StringToUTF16(oldpath)[0]
to := &StringToUTF16(newpath)[0]
if ok, e := MoveFile(from, to); !ok {
return e
}
return 0
}
func ComputerName() (name string, errno int) {
var n uint32 = MAX_COMPUTERNAME_LENGTH + 1
b := make([]uint16, n)
if ok, e := GetComputerName(&b[0], &n); !ok {
return "", e
}
return string(utf16.Decode(b[0:n])), 0
}
func Ftruncate(fd int, length int64) (errno int) {
curoffset, e := Seek(fd, 0, 1)
if e != 0 {
return e
}
defer Seek(fd, curoffset, 0)
if _, e := Seek(fd, length, 0); e != 0 {
return e
}
if _, e := SetEndOfFile(int32(fd)); e != 0 {
return e
}
return 0
}
func Gettimeofday(tv *Timeval) (errno int) {
var ft Filetime
GetSystemTimeAsFileTime(&ft)
*tv = NsecToTimeval(ft.Nanoseconds())
return 0
}
func Sleep(nsec int64) (errno int) {
sleep(uint32((nsec + 1e6 - 1) / 1e6)) // round up to milliseconds
return 0
}
func Pipe(p []int) (errno int) {
if len(p) != 2 {
return EINVAL
}
var r, w uint32
if ok, errno := CreatePipe(&r, &w, nil, 0); !ok {
return errno
}
p[0] = int(r)
p[1] = int(w)
return 0
}
func Utimes(path string, tv []Timeval) (errno int) {
if len(tv) != 2 {
return EINVAL
}
h, e := CreateFile(StringToUTF16Ptr(path),
FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0)
if e != 0 {
return e
}
defer Close(int(h))
a := NsecToFiletime(tv[0].Nanoseconds())
w := NsecToFiletime(tv[1].Nanoseconds())
if ok, e := SetFileTime(h, nil, &a, &w); !ok {
return e
}
return 0
}
// net api calls
//sys WSAStartup(verreq uint32, data *WSAData) (sockerrno int) = wsock32.WSAStartup
//sys WSACleanup() (errno int) [failretval==-1] = wsock32.WSACleanup
//sys socket(af int32, typ int32, protocol int32) (handle int32, errno int) [failretval==-1] = wsock32.socket
//sys setsockopt(s int32, level int32, optname int32, optval *byte, optlen int32) (errno int) [failretval==-1] = wsock32.setsockopt
//sys bind(s int32, name uintptr, namelen int32) (errno int) [failretval==-1] = wsock32.bind
//sys connect(s int32, name uintptr, namelen int32) (errno int) [failretval==-1] = wsock32.connect
//sys getsockname(s int32, rsa *RawSockaddrAny, addrlen *int32) (errno int) [failretval==-1] = wsock32.getsockname
//sys getpeername(s int32, rsa *RawSockaddrAny, addrlen *int32) (errno int) [failretval==-1] = wsock32.getpeername
//sys listen(s int32, backlog int32) (errno int) [failretval==-1] = wsock32.listen
//sys shutdown(s int32, how int32) (errno int) [failretval==-1] = wsock32.shutdown
//sys AcceptEx(ls uint32, as uint32, buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, recvd *uint32, overlapped *Overlapped) (ok bool, errno int) = wsock32.AcceptEx
//sys GetAcceptExSockaddrs(buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, lrsa **RawSockaddrAny, lrsalen *int32, rrsa **RawSockaddrAny, rrsalen *int32) = wsock32.GetAcceptExSockaddrs
//sys WSARecv(s uint32, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, overlapped *Overlapped, croutine *byte) (errno int) [failretval==-1] = ws2_32.WSARecv
//sys WSASend(s uint32, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (errno int) [failretval==-1] = ws2_32.WSASend
//sys WSARecvFrom(s uint32, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, from *RawSockaddrAny, fromlen *int32, overlapped *Overlapped, croutine *byte) (errno int) [failretval==-1] = ws2_32.WSARecvFrom
//sys WSASendTo(s uint32, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to *RawSockaddrAny, tolen int32, overlapped *Overlapped, croutine *byte) (errno int) [failretval==-1] = ws2_32.WSASendTo
//sys GetHostByName(name string) (h *Hostent, errno int) [failretval==nil] = ws2_32.gethostbyname
//sys GetServByName(name string, proto string) (s *Servent, errno int) [failretval==nil] = ws2_32.getservbyname
//sys Ntohs(netshort uint16) (u uint16) = ws2_32.ntohs
//sys DnsQuery(name string, qtype uint16, options uint32, extra *byte, qrs **DNSRecord, pr *byte) (status uint32) = dnsapi.DnsQuery_W
//sys DnsRecordListFree(rl *DNSRecord, freetype uint32) = dnsapi.DnsRecordListFree
// For testing: clients can set this flag to force
// creation of IPv6 sockets to return EAFNOSUPPORT.
var SocketDisableIPv6 bool
type RawSockaddrInet4 struct {
Family uint16
Port uint16
Addr [4]byte /* in_addr */
Zero [8]uint8
}
type RawSockaddr struct {
Family uint16
Data [14]int8
}
type RawSockaddrAny struct {
Addr RawSockaddr
Pad [96]int8
}
type Sockaddr interface {
sockaddr() (ptr uintptr, len int32, errno int) // lowercase; only we can define Sockaddrs
}
type SockaddrInet4 struct {
Port int
Addr [4]byte
raw RawSockaddrInet4
}
func (sa *SockaddrInet4) sockaddr() (uintptr, int32, int) {
if sa.Port < 0 || sa.Port > 0xFFFF {
return 0, 0, EINVAL
}
sa.raw.Family = AF_INET
p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
p[0] = byte(sa.Port >> 8)
p[1] = byte(sa.Port)
for i := 0; i < len(sa.Addr); i++ {
sa.raw.Addr[i] = sa.Addr[i]
}
return uintptr(unsafe.Pointer(&sa.raw)), int32(unsafe.Sizeof(sa.raw)), 0
}
type SockaddrInet6 struct {
Port int
Addr [16]byte
}
func (sa *SockaddrInet6) sockaddr() (uintptr, int32, int) {
// TODO(brainman): implement SockaddrInet6.sockaddr()
return 0, 0, EWINDOWS
}
type SockaddrUnix struct {
Name string
}
func (sa *SockaddrUnix) sockaddr() (uintptr, int32, int) {
// TODO(brainman): implement SockaddrUnix.sockaddr()
return 0, 0, EWINDOWS
}
func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, int) {
switch rsa.Addr.Family {
case AF_UNIX:
return nil, EWINDOWS
case AF_INET:
pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
sa := new(SockaddrInet4)
p := (*[2]byte)(unsafe.Pointer(&pp.Port))
sa.Port = int(p[0])<<8 + int(p[1])
for i := 0; i < len(sa.Addr); i++ {
sa.Addr[i] = pp.Addr[i]
}
return sa, 0
case AF_INET6:
return nil, EWINDOWS
}
return nil, EAFNOSUPPORT
}
func Socket(domain, typ, proto int) (fd, errno int) {
if domain == AF_INET6 && SocketDisableIPv6 {
return -1, EAFNOSUPPORT
}
h, e := socket(int32(domain), int32(typ), int32(proto))
return int(h), int(e)
}
func SetsockoptInt(fd, level, opt int, value int) (errno int) {
v := int32(value)
return int(setsockopt(int32(fd), int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), int32(unsafe.Sizeof(v))))
}
func Bind(fd int, sa Sockaddr) (errno int) {
ptr, n, err := sa.sockaddr()
if err != 0 {
return err
}
return bind(int32(fd), ptr, n)
}
func Connect(fd int, sa Sockaddr) (errno int) {
ptr, n, err := sa.sockaddr()
if err != 0 {
return err
}
return connect(int32(fd), ptr, n)
}
func Getsockname(fd int) (sa Sockaddr, errno int) {
var rsa RawSockaddrAny
l := int32(unsafe.Sizeof(rsa))
if errno = getsockname(int32(fd), &rsa, &l); errno != 0 {
return
}
return rsa.Sockaddr()
}
func Getpeername(fd int) (sa Sockaddr, errno int) {
var rsa RawSockaddrAny
l := int32(unsafe.Sizeof(rsa))
if errno = getpeername(int32(fd), &rsa, &l); errno != 0 {
return
}
return rsa.Sockaddr()
}
func Listen(s int, n int) (errno int) {
return int(listen(int32(s), int32(n)))
}
func Shutdown(fd, how int) (errno int) {
return int(shutdown(int32(fd), int32(how)))
}
func AcceptIOCP(iocpfd, fd int, o *Overlapped) (attrs *byte, errno int) {
// Will ask for local and remote address only.
rsa := make([]RawSockaddrAny, 2)
attrs = (*byte)(unsafe.Pointer(&rsa[0]))
alen := uint32(unsafe.Sizeof(rsa[0]))
var done uint32
_, errno = AcceptEx(uint32(iocpfd), uint32(fd), attrs, 0, alen, alen, &done, o)
return
}
func GetAcceptIOCPSockaddrs(attrs *byte) (lsa, rsa Sockaddr) {
var lrsa, rrsa *RawSockaddrAny
var llen, rlen int32
alen := uint32(unsafe.Sizeof(*lrsa))
GetAcceptExSockaddrs(attrs, 0, alen, alen, &lrsa, &llen, &rrsa, &rlen)
lsa, _ = lrsa.Sockaddr()
rsa, _ = rrsa.Sockaddr()
return
}
func WSASendto(s uint32, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to Sockaddr, overlapped *Overlapped, croutine *byte) (errno int) {
rsa, l, err := to.sockaddr()
if err != 0 {
return err
}
errno = WSASendTo(s, bufs, bufcnt, sent, flags, (*RawSockaddrAny)(unsafe.Pointer(rsa)), l, overlapped, croutine)
return
}
// TODO(brainman): fix all needed for net
func Accept(fd int) (nfd int, sa Sockaddr, errno int) { return 0, nil, EWINDOWS }
func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, errno int) { return 0, nil, EWINDOWS }
func Sendto(fd int, p []byte, flags int, to Sockaddr) (errno int) { return EWINDOWS }
func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (errno int) { return EWINDOWS }
type Linger struct {
Onoff int32
Linger int32
}
func SetsockoptLinger(fd, level, opt int, l *Linger) (errno int) { return EWINDOWS }
func BindToDevice(fd int, device string) (errno int) { return EWINDOWS }
// TODO(brainman): fix all needed for os
const (
SIGTRAP = 5
)
func Getpid() (pid int) { return -1 }
func Getppid() (ppid int) { return -1 }
func Fchdir(fd int) (errno int) { return EWINDOWS }
func Link(oldpath, newpath string) (errno int) { return EWINDOWS }
func Symlink(path, link string) (errno int) { return EWINDOWS }
func Readlink(path string, buf []byte) (n int, errno int) { return 0, EWINDOWS }
func Chmod(path string, mode uint32) (errno int) { return EWINDOWS }
func Fchmod(fd int, mode uint32) (errno int) { return EWINDOWS }
func Chown(path string, uid int, gid int) (errno int) { return EWINDOWS }
func Lchown(path string, uid int, gid int) (errno int) { return EWINDOWS }
func Fchown(fd int, uid int, gid int) (errno int) { return EWINDOWS }
func Getuid() (uid int) { return -1 }
func Geteuid() (euid int) { return -1 }
func Getgid() (gid int) { return -1 }
func Getegid() (egid int) { return -1 }
func Getgroups() (gids []int, errno int) { return nil, EWINDOWS }
// TODO(brainman): fix all this meaningless code, it is here to compile exec.go
func read(fd int, buf *byte, nbuf int) (n int, errno int) {
return 0, EWINDOWS
}
func fcntl(fd, cmd, arg int) (val int, errno int) {
return 0, EWINDOWS
}
const (
PTRACE_TRACEME = 1 + iota
WNOHANG
WSTOPPED
SYS_CLOSE
SYS_WRITE
SYS_EXIT
SYS_READ
)
type Rusage struct {
Utime Timeval
Stime Timeval
Maxrss int32
Ixrss int32
Idrss int32
Isrss int32
Minflt int32
Majflt int32
Nswap int32
Inblock int32
Oublock int32
Msgsnd int32
Msgrcv int32
Nsignals int32
Nvcsw int32
Nivcsw int32
}
type WaitStatus struct {
Status uint32
ExitCode uint32
}
func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, errno int) {
const da = STANDARD_RIGHTS_READ | PROCESS_QUERY_INFORMATION | SYNCHRONIZE
handle, errno := OpenProcess(da, 0, uint32(pid))
if errno != 0 {
return 0, errno
}
defer CloseHandle(int32(handle))
e, errno := WaitForSingleObject(int32(handle), INFINITE)
var c uint32
if ok, errno := GetExitCodeProcess(handle, &c); !ok {
return 0, errno
}
*wstatus = WaitStatus{e, c}
return pid, 0
}
func (w WaitStatus) Exited() bool { return w.Status == WAIT_OBJECT_0 }
func (w WaitStatus) ExitStatus() int {
if w.Status == WAIT_OBJECT_0 {
return int(w.ExitCode)
}
return -1
}
func (WaitStatus) Signal() int { return -1 }
func (WaitStatus) CoreDump() bool { return false }
func (WaitStatus) Stopped() bool { return false }
func (WaitStatus) Continued() bool { return false }
func (WaitStatus) StopSignal() int { return -1 }
func (w WaitStatus) Signaled() bool { return w.Status == WAIT_OBJECT_0 }
func (WaitStatus) TrapCause() int { return -1 }