1/* Prefer faster, non-thread-safe stdio functions if available.
2
3 Copyright (C) 2001-2004, 2009-2019 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 <https://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