summaryrefslogtreecommitdiff
path: root/doc/progs/file.go
diff options
context:
space:
mode:
Diffstat (limited to 'doc/progs/file.go')
-rw-r--r--doc/progs/file.go89
1 files changed, 0 insertions, 89 deletions
diff --git a/doc/progs/file.go b/doc/progs/file.go
deleted file mode 100644
index 2875ce73a..000000000
--- a/doc/progs/file.go
+++ /dev/null
@@ -1,89 +0,0 @@
-// 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.
-
-package file
-
-import (
- "os"
- "syscall"
-)
-
-type File struct {
- fd int // file descriptor number
- name string // file name at Open time
-}
-
-func newFile(fd int, name string) *File {
- if fd < 0 {
- return nil
- }
- return &File{fd, name}
-}
-
-var (
- Stdin = newFile(syscall.Stdin, "/dev/stdin")
- Stdout = newFile(syscall.Stdout, "/dev/stdout")
- Stderr = newFile(syscall.Stderr, "/dev/stderr")
-)
-
-func OpenFile(name string, mode int, perm uint32) (file *File, err os.Error) {
- r, e := syscall.Open(name, mode, perm)
- if e != 0 {
- err = os.Errno(e)
- }
- return newFile(r, name), err
-}
-
-const (
- O_RDONLY = syscall.O_RDONLY
- O_RDWR = syscall.O_RDWR
- O_CREATE = syscall.O_CREAT
- O_TRUNC = syscall.O_TRUNC
-)
-
-func Open(name string) (file *File, err os.Error) {
- return OpenFile(name, O_RDONLY, 0)
-}
-
-func Create(name string) (file *File, err os.Error) {
- return OpenFile(name, O_RDWR|O_CREATE|O_TRUNC, 0666)
-}
-
-func (file *File) Close() os.Error {
- if file == nil {
- return os.EINVAL
- }
- e := syscall.Close(file.fd)
- file.fd = -1 // so it can't be closed again
- if e != 0 {
- return os.Errno(e)
- }
- return nil
-}
-
-func (file *File) Read(b []byte) (ret int, err os.Error) {
- if file == nil {
- return -1, os.EINVAL
- }
- r, e := syscall.Read(file.fd, b)
- if e != 0 {
- err = os.Errno(e)
- }
- return int(r), err
-}
-
-func (file *File) Write(b []byte) (ret int, err os.Error) {
- if file == nil {
- return -1, os.EINVAL
- }
- r, e := syscall.Write(file.fd, b)
- if e != 0 {
- err = os.Errno(e)
- }
- return int(r), err
-}
-
-func (file *File) String() string {
- return file.name
-}