1/* Prefer faster, non-thread-safe stdio functions if available.
2
3   Copyright (C) 2001-2004, 2009-2014 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 3 of the License, or
8   (at your option) 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
16   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
18/* Written by Jim Meyering.  */
19
20#ifndef UNLOCKED_IO_H
21# define UNLOCKED_IO_H 1
22
23/* These are wrappers for functions/macros from the GNU C library, and
24   from other C libraries supporting POSIX's optional thread-safe functions.
25
26   The standard I/O functions are thread-safe.  These *_unlocked ones are
27   more efficient but not thread-safe.  That they're not thread-safe is
28   fine since all of the applications in this package are single threaded.
29
30   Also, some code that is shared with the GNU C library may invoke
31   the *_unlocked functions directly.  On hosts that lack those
32   functions, invoke the non-thread-safe versions instead.  */
33
34# include <stdio.h>
35
36# if HAVE_DECL_CLEARERR_UNLOCKED
37#  undef clearerr
38#  define clearerr(x) clearerr_unlocked (x)
39# else
40#  define clearerr_unlocked(x) clearerr (x)
41# endif
42
43# if HAVE_DECL_FEOF_UNLOCKED
44#  undef feof
45#  define feof(x) feof_unlocked (x)
46# else
47#  define feof_unlocked(x) feof (x)
48# endif
49
50# if HAVE_DECL_FERROR_UNLOCKED
51#  undef ferror
52#  define ferror(x) ferror_unlocked (x)
53# else
54#  define ferror_unlocked(x) ferror (x)
55# endif
56
57# if HAVE_DECL_FFLUSH_UNLOCKED
58#  undef fflush
59#  define fflush(x) fflush_unlocked (x)
60# else
61#  define fflush_unlocked(x) fflush (x)
62# endif
63
64# if HAVE_DECL_FGETS_UNLOCKED
65#  undef fgets
66#  define fgets(x,y,z) fgets_unlocked (x,y,z)
67# else
68#  define fgets_unlocked(x,y,z) fgets (x,y,z)
69# endif
70
71# if HAVE_DECL_FPUTC_UNLOCKED
72#  undef fputc
73#  define fputc(x,y) fputc_unlocked (x,y)
74# else
75#  define fputc_unlocked(x,y) fputc (x,y)
76# endif
77
78# if HAVE_DECL_FPUTS_UNLOCKED
79#  undef fputs
80#  define fputs(x,y) fputs_unlocked (x,y)
81# else
82#  define fputs_unlocked(x,y) fputs (x,y)
83# endif
84
85# if HAVE_DECL_FREAD_UNLOCKED
86#  undef fread
87#  define fread(w,x,y,z) fread_unlocked (w,x,y,z)
88# else
89#  define fread_unlocked(w,x,y,z) fread (w,x,y,z)
90# endif
91
92# if HAVE_DECL_FWRITE_UNLOCKED
93#  undef fwrite
94#  define fwrite(w,x,y,z) fwrite_unlocked (w,x,y,z)
95# else
96#  define fwrite_unlocked(w,x,y,z) fwrite (w,x,y,z)
97# endif
98
99# if HAVE_DECL_GETC_UNLOCKED
100#  undef getc
101#  define getc(x) getc_unlocked (x)
102# else
103#  define getc_unlocked(x) getc (x)
104# endif
105
106# if HAVE_DECL_GETCHAR_UNLOCKED
107#  undef getchar
108#  define getchar() getchar_unlocked ()
109# else
110#  define getchar_unlocked() getchar ()
111# endif
112
113# if HAVE_DECL_PUTC_UNLOCKED
114#  undef putc
115#  define putc(x,y) putc_unlocked (x,y)
116# else
117#  define putc_unlocked(x,y) putc (x,y)
118# endif
119
120# if HAVE_DECL_PUTCHAR_UNLOCKED
121#  undef putchar
122#  define putchar(x) putchar_unlocked (x)
123# else
124#  define putchar_unlocked(x) putchar (x)
125# endif
126
127# undef flockfile
128# define flockfile(x) ((void) 0)
129
130# undef ftrylockfile
131# define ftrylockfile(x) 0
132
133# undef funlockfile
134# define funlockfile(x) ((void) 0)
135
136#endif /* UNLOCKED_IO_H */
137