1/* Prefer faster, non-thread-safe stdio functions if available.
2
3   Copyright (C) 2001, 2002 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify it
6   under the terms of the GNU Library General Public License as published
7   by the Free Software Foundation; either version 2, or (at your option)
8   any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Library General Public License for more details.
14
15   You should have received a copy of the GNU Library General Public
16   License along with this program; if not, write to the Free Software
17   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
18   USA.  */
19
20/* Written by Jim Meyering.  */
21
22#ifndef UNLOCKED_IO_H
23# define UNLOCKED_IO_H 1
24
25# ifndef USE_UNLOCKED_IO
26#  define USE_UNLOCKED_IO 1
27# endif
28
29# if USE_UNLOCKED_IO
30
31/* These are wrappers for functions/macros from GNU libc.
32   The standard I/O functions are thread-safe.  These *_unlocked ones are
33   more efficient but not thread-safe.  That they're not thread-safe is
34   fine since all of the applications in this package are single threaded.  */
35
36#  if HAVE_DECL_CLEARERR_UNLOCKED
37#   undef clearerr
38#   define clearerr(x) clearerr_unlocked (x)
39#  endif
40#  if HAVE_DECL_FEOF_UNLOCKED
41#   undef feof
42#   define feof(x) feof_unlocked (x)
43#  endif
44#  if HAVE_DECL_FERROR_UNLOCKED
45#   undef ferror
46#   define ferror(x) ferror_unlocked (x)
47#  endif
48#  if HAVE_DECL_FFLUSH_UNLOCKED
49#   undef fflush
50#   define fflush(x) fflush_unlocked (x)
51#  endif
52#  if HAVE_DECL_FGETS_UNLOCKED
53#   undef fgets
54#   define fgets(x,y,z) fgets_unlocked (x,y,z)
55#  endif
56#  if HAVE_DECL_FPUTC_UNLOCKED
57#   undef fputc
58#   define fputc(x,y) fputc_unlocked (x,y)
59#  endif
60#  if HAVE_DECL_FPUTS_UNLOCKED
61#   undef fputs
62#   define fputs(x,y) fputs_unlocked (x,y)
63#  endif
64#  if HAVE_DECL_FREAD_UNLOCKED
65#   undef fread
66#   define fread(w,x,y,z) fread_unlocked (w,x,y,z)
67#  endif
68#  if HAVE_DECL_FWRITE_UNLOCKED
69#   undef fwrite
70#   define fwrite(w,x,y,z) fwrite_unlocked (w,x,y,z)
71#  endif
72#  if HAVE_DECL_GETC_UNLOCKED
73#   undef getc
74#   define getc(x) getc_unlocked (x)
75#  endif
76#  if HAVE_DECL_GETCHAR_UNLOCKED
77#   undef getchar
78#   define getchar() getchar_unlocked ()
79#  endif
80#  if HAVE_DECL_PUTC_UNLOCKED
81#   undef putc
82#   define putc(x,y) putc_unlocked (x,y)
83#  endif
84#  if HAVE_DECL_PUTCHAR_UNLOCKED
85#   undef putchar
86#   define putchar(x) putchar_unlocked (x)
87#  endif
88
89# endif /* USE_UNLOCKED_IO */
90#endif /* UNLOCKED_IO_H */
91