1 files changed, 0 insertions, 348 deletions
diff --git a/src/pkg/os/file_plan9.go b/src/pkg/os/file_plan9.go
deleted file mode 100644
index 03792191e..000000000
--- a/src/pkg/os/file_plan9.go
+++ /dev/null
@@ -1,348 +0,0 @@
-// Copyright 2011 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.
-
-package os
-
-import (
-	"runtime"
-	"syscall"
-)
-
-// File represents an open file descriptor.
-type File struct {
-	fd      int
-	name    string
-	dirinfo *dirInfo // nil unless directory being read
-	nepipe  int      // number of consecutive EPIPE in Write
-}
-
-// Fd returns the integer Unix file descriptor referencing the open file.
-func (file *File) Fd() int {
-	if file == nil {
-		return -1
-	}
-	return file.fd
-}
-
-// NewFile returns a new File with the given file descriptor and name.
-func NewFile(fd int, name string) *File {
-	if fd < 0 {
-		return nil
-	}
-	f := &File{fd: fd, name: name}
-	runtime.SetFinalizer(f, (*File).Close)
-	return f
-}
-
-// Auxiliary information if the File describes a directory
-type dirInfo struct {
-	buf  [syscall.STATMAX]byte // buffer for directory I/O
-	nbuf int                   // length of buf; return value from Read
-	bufp int                   // location of next record in buf.
-}
-
-func epipecheck(file *File, e syscall.Error) {
-}
-
-
-// DevNull is the name of the operating system's ``null device.''
-// On Unix-like systems, it is "/dev/null"; on Windows, "NUL".
-const DevNull = "/dev/null"
-
-// OpenFile is the generalized open call; most users will use Open
-// or Create instead.  It opens the named file with specified flag
-// (O_RDONLY etc.) and perm, (0666 etc.) if applicable.  If successful,
-// methods on the returned File can be used for I/O.
-// It returns the File and an Error, if any.
-func OpenFile(name string, flag int, perm uint32) (file *File, err Error) {
-	var (
-		fd     int
-		e      syscall.Error
-		create bool
-		excl   bool
-		trunc  bool
-		append bool
-	)
-
-	if flag&O_CREATE == O_CREATE {
-		flag = flag & ^O_CREATE
-		create = true
-	}
-	if flag&O_EXCL == O_EXCL {
-		excl = true
-	}
-	if flag&O_TRUNC == O_TRUNC {
-		trunc = true
-	}
-	// O_APPEND is emulated on Plan 9
-	if flag&O_APPEND == O_APPEND {
-		flag = flag &^ O_APPEND
-		append = true
-	}
-
-	syscall.ForkLock.RLock()
-	if (create && trunc) || excl {
-		fd, e = syscall.Create(name, flag, perm)
-	} else {
-		fd, e = syscall.Open(name, flag)
-		if e != nil && create {
-			var e1 syscall.Error
-			fd, e1 = syscall.Create(name, flag, perm)
-			if e1 == nil {
-				e = nil
-			}
-		}
-	}
-	syscall.ForkLock.RUnlock()
-
-	if e != nil {
-		return nil, &PathError{"open", name, e}
-	}
-
-	if append {
-		if _, e = syscall.Seek(fd, 0, SEEK_END); e != nil {
-			return nil, &PathError{"seek", name, e}
-		}
-	}
-
-	return NewFile(fd, name), nil
-}
-
-// Close closes the File, rendering it unusable for I/O.
-// It returns an Error, if any.
-func (file *File) Close() Error {
-	if file == nil || file.fd < 0 {
-		return Ebadfd
-	}
-	var err Error
-	syscall.ForkLock.RLock()
-	if e := syscall.Close(file.fd); e != nil {
-		err = &PathError{"close", file.name, e}
-	}
-	syscall.ForkLock.RUnlock()
-	file.fd = -1 // so it can't be closed again
-
-	// no need for a finalizer anymore
-	runtime.SetFinalizer(file, nil)
-	return err
-}
-
-// Stat returns the FileInfo structure describing file.
-// It returns the FileInfo and an error, if any.
-func (f *File) Stat() (fi *FileInfo, err Error) {
-	d, err := dirstat(f)
-	if iserror(err) {
-		return nil, err
-	}
-	return fileInfoFromStat(new(FileInfo), d), err
-}
-
-// Truncate changes the size of the file.
-// It does not change the I/O offset.
-func (f *File) Truncate(size int64) Error {
-	var d Dir
-	d.Null()
-
-	d.Length = uint64(size)
-
-	if e := syscall.Fwstat(f.fd, pdir(nil, &d)); iserror(e) {
-		return &PathError{"truncate", f.name, e}
-	}
-	return nil
-}
-
-// Chmod changes the mode of the file to mode.
-func (f *File) Chmod(mode uint32) Error {
-	var d Dir
-	var mask = ^uint32(0777)
-
-	d.Null()
-	odir, e := dirstat(f)
-	if iserror(e) {
-		return &PathError{"chmod", f.name, e}
-	}
-
-	d.Mode = (odir.Mode & mask) | (mode &^ mask)
-	if e := syscall.Fwstat(f.fd, pdir(nil, &d)); iserror(e) {
-		return &PathError{"chmod", f.name, e}
-	}
-	return nil
-}
-
-// Sync commits the current contents of the file to stable storage.
-// Typically, this means flushing the file system's in-memory copy
-// of recently written data to disk.
-func (f *File) Sync() (err Error) {
-	if f == nil {
-		return EINVAL
-	}
-
-	var d Dir
-	d.Null()
-
-	if e := syscall.Fwstat(f.fd, pdir(nil, &d)); iserror(e) {
-		return NewSyscallError("fsync", e)
-	}
-	return nil
-}
-
-// read reads up to len(b) bytes from the File.
-// It returns the number of bytes read and an error, if any.
-func (f *File) read(b []byte) (n int, err syscall.Error) {
-	return syscall.Read(f.fd, b)
-}
-
-// pread reads len(b) bytes from the File starting at byte offset off.
-// It returns the number of bytes read and the error, if any.
-// EOF is signaled by a zero count with err set to nil.
-func (f *File) pread(b []byte, off int64) (n int, err syscall.Error) {
-	return syscall.Pread(f.fd, b, off)
-}
-
-// write writes len(b) bytes to the File.
-// It returns the number of bytes written and an error, if any.
-func (f *File) write(b []byte) (n int, err syscall.Error) {
-	return syscall.Write(f.fd, b)
-}
-
-// pwrite writes len(b) bytes to the File starting at byte offset off.
-// It returns the number of bytes written and an error, if any.
-func (f *File) pwrite(b []byte, off int64) (n int, err syscall.Error) {
-	return syscall.Pwrite(f.fd, b, off)
-}
-
-// seek sets the offset for the next Read or Write on file to offset, interpreted
-// according to whence: 0 means relative to the origin of the file, 1 means
-// relative to the current offset, and 2 means relative to the end.
-// It returns the new offset and an error, if any.
-func (f *File) seek(offset int64, whence int) (ret int64, err syscall.Error) {
-	return syscall.Seek(f.fd, offset, whence)
-}
-
-// Truncate changes the size of the named file.
-// If the file is a symbolic link, it changes the size of the link's target.
-func Truncate(name string, size int64) Error {
-	var d Dir
-	d.Null()
-
-	d.Length = uint64(size)
-
-	if e := syscall.Wstat(name, pdir(nil, &d)); iserror(e) {
-		return &PathError{"truncate", name, e}
-	}
-	return nil
-}
-
-// Remove removes the named file or directory.
-func Remove(name string) Error {
-	if e := syscall.Remove(name); iserror(e) {
-		return &PathError{"remove", name, e}
-	}
-	return nil
-}
-
-// Rename renames a file.
-func Rename(oldname, newname string) Error {
-	var d Dir
-	d.Null()
-
-	d.Name = newname
-
-	if e := syscall.Wstat(oldname, pdir(nil, &d)); iserror(e) {
-		return &PathError{"rename", oldname, e}
-	}
-	return nil
-}
-
-// Chmod changes the mode of the named file to mode.
-func Chmod(name string, mode uint32) Error {
-	var d Dir
-	var mask = ^uint32(0777)
-
-	d.Null()
-	odir, e := dirstat(name)
-	if iserror(e) {
-		return &PathError{"chmod", name, e}
-	}
-
-	d.Mode = (odir.Mode & mask) | (mode &^ mask)
-	if e := syscall.Wstat(name, pdir(nil, &d)); iserror(e) {
-		return &PathError{"chmod", name, e}
-	}
-	return nil
-}
-
-// ChownPlan9 changes the uid and gid strings of the named file.
-func ChownPlan9(name, uid, gid string) Error {
-	var d Dir
-	d.Null()
-
-	d.Uid = uid
-	d.Gid = gid
-
-	if e := syscall.Wstat(name, pdir(nil, &d)); iserror(e) {
-		return &PathError{"chown_plan9", name, e}
-	}
-	return nil
-}
-
-// Chtimes changes the access and modification times of the named
-// file, similar to the Unix utime() or utimes() functions.
-//
-// The argument times are in nanoseconds, although the underlying
-// filesystem may truncate or round the values to a more
-// coarse time unit.
-func Chtimes(name string, atimeNs int64, mtimeNs int64) Error {
-	var d Dir
-	d.Null()
-
-	d.Atime = uint32(atimeNs / 1e9)
-	d.Mtime = uint32(mtimeNs / 1e9)
-
-	if e := syscall.Wstat(name, pdir(nil, &d)); iserror(e) {
-		return &PathError{"chtimes", name, e}
-	}
-	return nil
-}
-
-func Pipe() (r *File, w *File, err Error) {
-	var p [2]int
-
-	syscall.ForkLock.RLock()
-	if e := syscall.Pipe(p[0:]); iserror(e) {
-		syscall.ForkLock.RUnlock()
-		return nil, nil, NewSyscallError("pipe", e)
-	}
-	syscall.ForkLock.RUnlock()
-
-	return NewFile(p[0], "|0"), NewFile(p[1], "|1"), nil
-}
-
-
-// not supported on Plan 9
-
-// Link creates a hard link.
-func Link(oldname, newname string) Error {
-	return EPLAN9
-}
-
-func Symlink(oldname, newname string) Error {
-	return EPLAN9
-}
-
-func Readlink(name string) (string, Error) {
-	return "", EPLAN9
-}
-
-func Chown(name string, uid, gid int) Error {
-	return EPLAN9
-}
-
-func Lchown(name string, uid, gid int) Error {
-	return EPLAN9
-}
-
-func (f *File) Chown(uid, gid int) Error {
-	return EPLAN9
-}