1/* Prefer faster, non-thread-safe stdio functions if available. 2 3 Copyright (C) 2001, 2002, 2003, 2004 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 2, or (at your option) 8 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 along 16 with this program; if not, write to the Free Software Foundation, 17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 18 19/* Written by Jim Meyering. */ 20 21#ifndef UNLOCKED_IO_H 22# define UNLOCKED_IO_H 1 23 24/* These are wrappers for functions/macros from the GNU C library, and 25 from other C libraries supporting POSIX's optional thread-safe functions. 26 27 The standard I/O functions are thread-safe. These *_unlocked ones are 28 more efficient but not thread-safe. That they're not thread-safe is 29 fine since all of the applications in this package are single threaded. 30 31 Also, some code that is shared with the GNU C library may invoke 32 the *_unlocked functions directly. On hosts that lack those 33 functions, invoke the non-thread-safe versions instead. */ 34 35# include <stdio.h> 36 37# if HAVE_DECL_CLEARERR_UNLOCKED 38# undef clearerr 39# define clearerr(x) clearerr_unlocked (x) 40# else 41# define clearerr_unlocked(x) clearerr (x) 42# endif 43 44# if HAVE_DECL_FEOF_UNLOCKED 45# undef feof 46# define feof(x) feof_unlocked (x) 47# else 48# define feof_unlocked(x) feof (x) 49# endif 50 51# if HAVE_DECL_FERROR_UNLOCKED 52# undef ferror 53# define ferror(x) ferror_unlocked (x) 54# else 55# define ferror_unlocked(x) ferror (x) 56# endif 57 58# if HAVE_DECL_FFLUSH_UNLOCKED 59# undef fflush 60# define fflush(x) fflush_unlocked (x) 61# else 62# define fflush_unlocked(x) fflush (x) 63# endif 64 65# if HAVE_DECL_FGETS_UNLOCKED 66# undef fgets 67# define fgets(x,y,z) fgets_unlocked (x,y,z) 68# else 69# define fgets_unlocked(x,y,z) fgets (x,y,z) 70# endif 71 72# if HAVE_DECL_FPUTC_UNLOCKED 73# undef fputc 74# define fputc(x,y) fputc_unlocked (x,y) 75# else 76# define fputc_unlocked(x,y) fputc (x,y) 77# endif 78 79# if HAVE_DECL_FPUTS_UNLOCKED 80# undef fputs 81# define fputs(x,y) fputs_unlocked (x,y) 82# else 83# define fputs_unlocked(x,y) fputs (x,y) 84# endif 85 86# if HAVE_DECL_FREAD_UNLOCKED 87# undef fread 88# define fread(w,x,y,z) fread_unlocked (w,x,y,z) 89# else 90# define fread_unlocked(w,x,y,z) fread (w,x,y,z) 91# endif 92 93# if HAVE_DECL_FWRITE_UNLOCKED 94# undef fwrite 95# define fwrite(w,x,y,z) fwrite_unlocked (w,x,y,z) 96# else 97# define fwrite_unlocked(w,x,y,z) fwrite (w,x,y,z) 98# endif 99 100# if HAVE_DECL_GETC_UNLOCKED 101# undef getc 102# define getc(x) getc_unlocked (x) 103# else 104# define getc_unlocked(x) getc (x) 105# endif 106 107# if HAVE_DECL_GETCHAR_UNLOCKED 108# undef getchar 109# define getchar() getchar_unlocked () 110# else 111# define getchar_unlocked() getchar () 112# endif 113 114# if HAVE_DECL_PUTC_UNLOCKED 115# undef putc 116# define putc(x,y) putc_unlocked (x,y) 117# else 118# define putc_unlocked(x,y) putc (x,y) 119# endif 120 121# if HAVE_DECL_PUTCHAR_UNLOCKED 122# undef putchar 123# define putchar(x) putchar_unlocked (x) 124# else 125# define putchar_unlocked(x) putchar (x) 126# endif 127 128# undef flockfile 129# define flockfile(x) ((void) 0) 130 131# undef ftrylockfile 132# define ftrylockfile(x) 0 133 134# undef funlockfile 135# define funlockfile(x) ((void) 0) 136 137#endif /* UNLOCKED_IO_H */ 138