Edit
thodg/libiconv/srclib/unlocked-io.h
Bruno Haible
- srclib/unlocked-io.h
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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 2, 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, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* 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 */