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path: root/src/pkg/syscall/syscall_mingw.go
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Diffstat (limited to 'src/pkg/syscall/syscall_mingw.go')
-rw-r--r--src/pkg/syscall/syscall_mingw.go201
1 files changed, 186 insertions, 15 deletions
diff --git a/src/pkg/syscall/syscall_mingw.go b/src/pkg/syscall/syscall_mingw.go
index 2ae56d5c5..97ddc6d65 100644
--- a/src/pkg/syscall/syscall_mingw.go
+++ b/src/pkg/syscall/syscall_mingw.go
@@ -98,6 +98,15 @@ func getSysProcAddr(m uint32, pname string) uintptr {
//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]
+
+// syscall interface implementation for other packages
func Errstr(errno int) string {
if errno == EMINGW {
@@ -111,11 +120,184 @@ func Errstr(errno int) string {
return UTF16ToString(b[0 : n-1])
}
+func Exit(code int) { ExitProcess(uint32(code)) }
+
+func Open(path string, mode int, perm int) (fd int, errno int) {
+ if len(path) == 0 {
+ return -1, ERROR_FILE_NOT_FOUND
+ }
+ var access, sharemode uint32
+ switch {
+ case mode&O_CREAT != 0:
+ access = GENERIC_READ | GENERIC_WRITE
+ sharemode = 0
+ case mode&O_RDWR == O_RDONLY:
+ access = GENERIC_READ
+ sharemode = FILE_SHARE_READ
+ case mode&O_RDWR == O_WRONLY:
+ access = GENERIC_WRITE
+ sharemode = FILE_SHARE_READ
+ case mode&O_RDWR == O_RDWR:
+ access = GENERIC_READ | GENERIC_WRITE
+ sharemode = 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 {
+ 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) {
+ var o Overlapped
+ o.OffsetHigh = uint32(offset >> 32)
+ o.Offset = uint32(offset)
+ curoffset, e := Seek(fd, 0, 1)
+ if e != 0 {
+ return 0, e
+ }
+ var done uint32
+ if ok, e := ReadFile(int32(fd), p, &done, &o); !ok {
+ return 0, e
+ }
+ _, e = Seek(fd, curoffset, 0)
+ if e != 0 {
+ 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) {
+ var o Overlapped
+ o.OffsetHigh = uint32(offset >> 32)
+ o.Offset = uint32(offset)
+ curoffset, e := Seek(fd, 0, 1)
+ if e != 0 {
+ return 0, e
+ }
+ var done uint32
+ if ok, e := WriteFile(int32(fd), p, &done, &o); !ok {
+ return 0, e
+ }
+ _, e = Seek(fd, curoffset, 0)
+ if e != 0 {
+ 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)
+ 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)
+}
+
+// TODO(brainman): fix all needed for os
+
+const (
+ SIGTRAP = 5
+)
+
+func Getdents(fd int, buf []byte) (n int, errno int) { return 0, EMINGW }
+
+func Getpid() (pid int) { return -1 }
+func Getppid() (ppid int) { return -1 }
+
+func Mkdir(path string, mode int) (errno int) { return EMINGW }
+func Lstat(path string, stat *Stat_t) (errno int) { return EMINGW }
+func Stat(path string, stat *Stat_t) (errno int) { return EMINGW }
+func Fstat(fd int, stat *Stat_t) (errno int) { return EMINGW }
+func Chdir(path string) (errno int) { return EMINGW }
+func Fchdir(fd int) (errno int) { return EMINGW }
+func Unlink(path string) (errno int) { return EMINGW }
+func Rmdir(path string) (errno int) { return EMINGW }
+func Link(oldpath, newpath string) (errno int) { return EMINGW }
+func Symlink(path, link string) (errno int) { return EMINGW }
+func Readlink(path string, buf []byte) (n int, errno int) { return 0, EMINGW }
+func Rename(oldpath, newpath string) (errno int) { return EMINGW }
+func Chmod(path string, mode int) (errno int) { return EMINGW }
+func Fchmod(fd int, mode int) (errno int) { return EMINGW }
+func Chown(path string, uid int, gid int) (errno int) { return EMINGW }
+func Lchown(path string, uid int, gid int) (errno int) { return EMINGW }
+func Fchown(fd int, uid int, gid int) (errno int) { return EMINGW }
+func Truncate(name string, size int64) (errno int) { return EMINGW }
+func Ftruncate(fd int, length int64) (errno int) { return EMINGW }
+
+const ImplementsGetwd = true
+
+func Getwd() (wd string, errno int) { return "", EMINGW }
+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, EMINGW }
+func Gettimeofday(tv *Timeval) (errno int) { return EMINGW }
+
// TODO(brainman): fix all this meaningless code, it is here to compile exec.go
func Pipe(p []int) (errno int) { return EMINGW }
-func Close(fd int) (errno int) { return EMINGW }
func read(fd int, buf *byte, nbuf int) (n int, errno int) {
return 0, EMINGW
}
@@ -125,24 +307,13 @@ func fcntl(fd, cmd, arg int) (val int, errno int) {
}
const (
- F_SETFD = 1 + iota
- FD_CLOEXEC
- F_GETFL
- F_SETFL
- O_NONBLOCK
- SYS_FORK
- SYS_PTRACE
- SYS_CHDIR
- SYS_DUP2
- SYS_FCNTL
- SYS_EXECVE
- PTRACE_TRACEME
+ PTRACE_TRACEME = 1 + iota
+ WNOHANG
+ WSTOPPED
SYS_CLOSE
SYS_WRITE
SYS_EXIT
SYS_READ
- EPIPE
- EINTR
)
type Rusage struct {
generated by cgit v1.2.3 (git 2.39.1) at 2025-05-01 07:07:21 +0000