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