summaryrefslogtreecommitdiff
path: root/doc/progs/fd.go
diff options
context:
space:
mode:
Diffstat (limited to 'doc/progs/fd.go')
-rw-r--r--doc/progs/fd.go62
1 files changed, 0 insertions, 62 deletions
diff --git a/doc/progs/fd.go b/doc/progs/fd.go
deleted file mode 100644
index c99c87777..000000000
--- a/doc/progs/fd.go
+++ /dev/null
@@ -1,62 +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 fd
-
-import (
- "os";
- "syscall";
-)
-
-type FD struct {
- fildes int64; // file descriptor number
- name string; // file name at Open time
-}
-
-func newFD(fd int64, name string) *FD {
- if fd < 0 {
- return nil
- }
- return &FD{fd, name}
-}
-
-var (
- Stdin = newFD(0, "/dev/stdin");
- Stdout = newFD(1, "/dev/stdout");
- Stderr = newFD(2, "/dev/stderr");
-)
-
-func Open(name string, mode int64, perm int64) (fd *FD, err *os.Error) {
- r, e := syscall.Open(name, mode, perm);
- return newFD(r, name), os.ErrnoToError(e)
-}
-
-func (fd *FD) Close() *os.Error {
- if fd == nil {
- return os.EINVAL
- }
- r, e := syscall.Close(fd.fildes);
- fd.fildes = -1; // so it can't be closed again
- return nil
-}
-
-func (fd *FD) Read(b []byte) (ret int, err *os.Error) {
- if fd == nil {
- return -1, os.EINVAL
- }
- r, e := syscall.Read(fd.fildes, &b[0], int64(len(b)));
- return int(r), os.ErrnoToError(e)
-}
-
-func (fd *FD) Write(b []byte) (ret int, err *os.Error) {
- if fd == nil {
- return -1, os.EINVAL
- }
- r, e := syscall.Write(fd.fildes, &b[0], int64(len(b)));
- return int(r), os.ErrnoToError(e)
-}
-
-func (fd *FD) String() string {
- return fd.name
-}