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/* Prefer faster, non-thread-safe stdio functions if available.
Copyright (C) 2001-2004, 2009-2021 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Jim Meyering. */
#ifndef UNLOCKED_IO_H
# define UNLOCKED_IO_H 1
/* These are wrappers for functions/macros from the GNU C library, and
from other C libraries supporting POSIX's optional thread-safe functions.
The standard I/O functions are thread-safe. These *_unlocked ones are
more efficient but not thread-safe. That they're not thread-safe is
fine since all of the applications in this package are single threaded.
Also, some code that is shared with the GNU C library may invoke
the *_unlocked functions directly. On hosts that lack those
functions, invoke the non-thread-safe versions instead. */
# include <stdio.h>
# if HAVE_DECL_CLEARERR_UNLOCKED
# undef clearerr
# define clearerr(x) clearerr_unlocked (x)
# else
# define clearerr_unlocked(x) clearerr (x)
# endif
# if HAVE_DECL_FEOF_UNLOCKED
# undef feof
# define feof(x) feof_unlocked (x)
# else
# define feof_unlocked(x) feof (x)
# endif
# if HAVE_DECL_FERROR_UNLOCKED
# undef ferror
# define ferror(x) ferror_unlocked (x)
# else
# define ferror_unlocked(x) ferror (x)
# endif
# if HAVE_DECL_FFLUSH_UNLOCKED
# undef fflush
# define fflush(x) fflush_unlocked (x)
# else
# define fflush_unlocked(x) fflush (x)
# endif
# if HAVE_DECL_FGETS_UNLOCKED
# undef fgets
# define fgets(x,y,z) fgets_unlocked (x,y,z)
# else
# define fgets_unlocked(x,y,z) fgets (x,y,z)
# endif
# if HAVE_DECL_FPUTC_UNLOCKED
# undef fputc
# define fputc(x,y) fputc_unlocked (x,y)
# else
# define fputc_unlocked(x,y) fputc (x,y)
# endif
# if HAVE_DECL_FPUTS_UNLOCKED
# undef fputs
# define fputs(x,y) fputs_unlocked (x,y)
# else
# define fputs_unlocked(x,y) fputs (x,y)
# endif
# if HAVE_DECL_FREAD_UNLOCKED
# undef fread
# define fread(w,x,y,z) fread_unlocked (w,x,y,z)
# else
# define fread_unlocked(w,x,y,z) fread (w,x,y,z)
# endif
# if HAVE_DECL_FWRITE_UNLOCKED
# undef fwrite
# define fwrite(w,x,y,z) fwrite_unlocked (w,x,y,z)
# else
# define fwrite_unlocked(w,x,y,z) fwrite (w,x,y,z)
# endif
# if HAVE_DECL_GETC_UNLOCKED
# undef getc
# define getc(x) getc_unlocked (x)
# else
# define getc_unlocked(x) getc (x)
# endif
# if HAVE_DECL_GETCHAR_UNLOCKED
# undef getchar
# define getchar() getchar_unlocked ()
# else
# define getchar_unlocked() getchar ()
# endif
# if HAVE_DECL_PUTC_UNLOCKED
# undef putc
# define putc(x,y) putc_unlocked (x,y)
# else
# define putc_unlocked(x,y) putc (x,y)
# endif
# if HAVE_DECL_PUTCHAR_UNLOCKED
# undef putchar
# define putchar(x) putchar_unlocked (x)
# else
# define putchar_unlocked(x) putchar (x)
# endif
# undef flockfile
# define flockfile(x) ((void) 0)
# undef ftrylockfile
# define ftrylockfile(x) 0
# undef funlockfile
# define funlockfile(x) ((void) 0)
#endif /* UNLOCKED_IO_H */
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