1/* This is part of libio/iostream, providing -*- C++ -*- input/output.
2Copyright (C) 1993 Free Software Foundation
3
4This file is part of the GNU IO Library.  This library is free
5software; you can redistribute it and/or modify it under the
6terms of the GNU General Public License as published by the
7Free Software Foundation; either version 2, or (at your option)
8any later version.
9
10This library is distributed in the hope that it will be useful,
11but WITHOUT ANY WARRANTY; without even the implied warranty of
12MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13GNU General Public License for more details.
14
15You should have received a copy of the GNU General Public License
16along with this library; see the file COPYING.  If not, write to the Free
17Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19As a special exception, if you link this library with files
20compiled with a GNU compiler to produce an executable, this does not cause
21the resulting executable to be covered by the GNU General Public License.
22This exception does not however invalidate any other reasons why
23the executable file might be covered by the GNU General Public License.
24
25Written by Per Bothner (bothner@cygnus.com). */
26
27#ifdef __GNUG__
28#pragma implementation
29#endif
30#define _STREAM_COMPAT
31extern "C" {
32#include "libioP.h"
33}
34#include <fstream.h>
35
36inline void
37fstreambase::__fb_init()
38{
39#ifdef _IO_NEW_STREAMS
40#if !_IO_UNIFIED_JUMPTABLES
41  /* Uses the _IO_file_jump jumptable, for eficiency. */
42  __my_fb._jumps = &_IO_file_jumps;
43  __my_fb._vtable() = builtinbuf_vtable;
44#endif
45  init (&__my_fb);
46#else
47  init(filebuf::__new());
48  _flags &= ~ios::dont_close;
49#endif
50}
51
52fstreambase::fstreambase()
53{
54  __fb_init ();
55}
56
57fstreambase::fstreambase(int fd)
58{
59  __fb_init ();
60  _IO_file_attach(rdbuf(), fd);
61}
62
63fstreambase::fstreambase(const char *name, int mode, int prot)
64{
65  __fb_init ();
66  if (!rdbuf()->open(name, mode, prot))
67    set(ios::badbit);
68}
69
70fstreambase::fstreambase(int fd, char *p, int l)
71{
72#ifdef _IO_NEW_STREAMS
73  __fb_init ();
74#else
75  init(filebuf::__new());
76#endif
77  _IO_file_attach(rdbuf(), fd);
78  _IO_file_setbuf(rdbuf(), p, l);
79}
80
81void fstreambase::open(const char *name, int mode, int prot)
82{
83    clear();
84    if (!rdbuf()->open(name, mode, prot))
85	set(ios::badbit);
86}
87
88void fstreambase::close()
89{
90    if (!rdbuf()->close())
91	set(ios::failbit);
92}
93
94void fstreambase::attach(int fd)
95{
96  if (!rdbuf()->attach(fd))
97    set(ios::failbit);
98}
99
100#if 0
101static int mode_to_sys(enum open_mode mode)
102{
103    return O_WRONLY;
104}
105
106static char* fopen_cmd_arg(io_mode i)
107{
108    return "w";
109}
110#endif
111