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- /* Prefer faster, non-thread-safe stdio functions if available.
- Copyright (C) 2001, 2002, 2003, 2004 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 <http://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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