lib/unlocked-io.h

   1 #ifndef UNLOCKED_IO_H
   2 # define UNLOCKED_IO_H 1
   3
   4 # ifndef USE_UNLOCKED_IO
   5 #  define USE_UNLOCKED_IO 1
   6 # endif
   7
   8 # if USE_UNLOCKED_IO
   9
  10 /* These are wrappers for functions/macros from GNU libc.
  11    The standard I/O functions are thread-safe.  These *_unlocked ones are
  12    more efficient but not thread-safe.  That they're not thread-safe is
  13    fine since all of the applications in this package are single threaded.  */
  14
  15 #  if HAVE_DECL_CLEARERR_UNLOCKED
  16 #   undef clearerr
  17 #   define clearerr(x) clearerr_unlocked (x)
  18 #  endif
  19 #  if HAVE_DECL_FEOF_UNLOCKED
  20 #   undef feof
  21 #   define feof(x) feof_unlocked (x)
  22 #  endif
  23 #  if HAVE_DECL_FERROR_UNLOCKED
  24 #   undef ferror
  25 #   define ferror(x) ferror_unlocked (x)
  26 #  endif
  27 #  if HAVE_DECL_FFLUSH_UNLOCKED
  28 #   undef fflush
  29 #   define fflush(x) fflush_unlocked (x)
  30 #  endif
  31 #  if HAVE_DECL_FGETS_UNLOCKED
  32 #   undef fgets
  33 #   define fgets(x,y,z) fgets_unlocked (x,y,z)
  34 #  endif
  35 #  if HAVE_DECL_FPUTC_UNLOCKED
  36 #   undef fputc
  37 #   define fputc(x,y) fputc_unlocked (x,y)
  38 #  endif
  39 #  if HAVE_DECL_FPUTS_UNLOCKED
  40 #   undef fputs
  41 #   define fputs(x,y) fputs_unlocked (x,y)
  42 #  endif
  43 #  if HAVE_DECL_FREAD_UNLOCKED
  44 #   undef fread
  45 #   define fread(w,x,y,z) fread_unlocked (w,x,y,z)
  46 #  endif
  47 #  if HAVE_DECL_FWRITE_UNLOCKED
  48 #   undef fwrite
  49 #   define fwrite(w,x,y,z) fwrite_unlocked (w,x,y,z)
  50 #  endif
  51 #  if HAVE_DECL_GETC_UNLOCKED
  52 #   undef getc
  53 #   define getc(x) getc_unlocked (x)
  54 #  endif
  55 #  if HAVE_DECL_GETCHAR_UNLOCKED
  56 #   undef getchar
  57 #   define getchar() getchar_unlocked ()
  58 #  endif
  59 #  if HAVE_DECL_PUTC_UNLOCKED
  60 #   undef putc
  61 #   define putc(x,y) putc_unlocked (x,y)
  62 #  endif
  63 #  if HAVE_DECL_PUTCHAR_UNLOCKED
  64 #   undef putchar
  65 #   define putchar(x) putchar_unlocked (x)
  66 #  endif
  67
  68 # endif /* USE_UNLOCKED_IO */
  69 #endif /* UNLOCKED_IO_H */