1/* Prefer faster, non-thread-safe stdio functions if available.
2
3   Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   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
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License along
16   with this program; if not, write to the Free Software Foundation,
17   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
18
19/* Written by Jim Meyering.  */
20
21#ifndef UNLOCKED_IO_H
22# define UNLOCKED_IO_H 1
23
24/* These are wrappers for functions/macros from the GNU C library, and
25   from other C libraries supporting POSIX's optional thread-safe functions.
26
27   The standard I/O functions are thread-safe.  These *_unlocked ones are
28   more efficient but not thread-safe.  That they're not thread-safe is
29   fine since all of the applications in this package are single threaded.
30
31   Also, some code that is shared with the GNU C library may invoke
32   the *_unlocked functions directly.  On hosts that lack those
33   functions, invoke the non-thread-safe versions instead.  */
34
35# include <stdio.h>
36
37# if HAVE_DECL_CLEARERR_UNLOCKED
38#  undef clearerr
39#  define clearerr(x) clearerr_unlocked (x)
40# else
41#  define clearerr_unlocked(x) clearerr (x)
42# endif
43
44# if HAVE_DECL_FEOF_UNLOCKED
45#  undef feof
46#  define feof(x) feof_unlocked (x)
47# else
48#  define feof_unlocked(x) feof (x)
49# endif
50
51# if HAVE_DECL_FERROR_UNLOCKED
52#  undef ferror
53#  define ferror(x) ferror_unlocked (x)
54# else
55#  define ferror_unlocked(x) ferror (x)
56# endif
57
58# if HAVE_DECL_FFLUSH_UNLOCKED
59#  undef fflush
60#  define fflush(x) fflush_unlocked (x)
61# else
62#  define fflush_unlocked(x) fflush (x)
63# endif
64
65# if HAVE_DECL_FGETS_UNLOCKED
66#  undef fgets
67#  define fgets(x,y,z) fgets_unlocked (x,y,z)
68# else
69#  define fgets_unlocked(x,y,z) fgets (x,y,z)
70# endif
71
72# if HAVE_DECL_FPUTC_UNLOCKED
73#  undef fputc
74#  define fputc(x,y) fputc_unlocked (x,y)
75# else
76#  define fputc_unlocked(x,y) fputc (x,y)
77# endif
78
79# if HAVE_DECL_FPUTS_UNLOCKED
80#  undef fputs
81#  define fputs(x,y) fputs_unlocked (x,y)
82# else
83#  define fputs_unlocked(x,y) fputs (x,y)
84# endif
85
86# if HAVE_DECL_FREAD_UNLOCKED
87#  undef fread
88#  define fread(w,x,y,z) fread_unlocked (w,x,y,z)
89# else
90#  define fread_unlocked(w,x,y,z) fread (w,x,y,z)
91# endif
92
93# if HAVE_DECL_FWRITE_UNLOCKED
94#  undef fwrite
95#  define fwrite(w,x,y,z) fwrite_unlocked (w,x,y,z)
96# else
97#  define fwrite_unlocked(w,x,y,z) fwrite (w,x,y,z)
98# endif
99
100# if HAVE_DECL_GETC_UNLOCKED
101#  undef getc
102#  define getc(x) getc_unlocked (x)
103# else
104#  define getc_unlocked(x) getc (x)
105# endif
106
107# if HAVE_DECL_GETCHAR_UNLOCKED
108#  undef getchar
109#  define getchar() getchar_unlocked ()
110# else
111#  define getchar_unlocked() getchar ()
112# endif
113
114# if HAVE_DECL_PUTC_UNLOCKED
115#  undef putc
116#  define putc(x,y) putc_unlocked (x,y)
117# else
118#  define putc_unlocked(x,y) putc (x,y)
119# endif
120
121# if HAVE_DECL_PUTCHAR_UNLOCKED
122#  undef putchar
123#  define putchar(x) putchar_unlocked (x)
124# else
125#  define putchar_unlocked(x) putchar (x)
126# endif
127
128# undef flockfile
129# define flockfile(x) ((void) 0)
130
131# undef ftrylockfile
132# define ftrylockfile(x) 0
133
134# undef funlockfile
135# define funlockfile(x) ((void) 0)
136
137#endif /* UNLOCKED_IO_H */
138