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