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136 lines
3.5 KiB
136 lines
3.5 KiB
/* Prefer faster, non-thread-safe stdio functions if available. |
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Copyright (C) 2001-2004, 2009-2017 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 <http://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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