lib/gen-uio

   1 #!/bin/sh
   2
   3 fail=0
   4 cat <<\EOF || fail=1
   5 #ifndef UNLOCKED_IO_H
   6 # define UNLOCKED_IO_H 1
   7
   8 # ifndef USE_UNLOCKED_IO
   9 #  define USE_UNLOCKED_IO 1
  10 # endif
  11
  12 # if USE_UNLOCKED_IO
  13
  14 /* These are wrappers for functions/macros from GNU libc.
  15    The standard I/O functions are thread-safe.  These *_unlocked ones are
  16    more efficient but not thread-safe.  That they're not thread-safe is
  17    fine since all of the applications in this package are single threaded.  */
  18
  19 EOF
  20
  21 for f in $@; do
  22   u=`echo $f|tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
  23   cat <<EOF || fail=1
  24 #  if HAVE_${u}_UNLOCKED
  25 #   undef $f
  26 EOF
  27   case $f in
  28     getchar)
  29       params=;;
  30     putchar | clearerr | feof | ferror | fflush | getc )
  31       params=x;;
  32     putc | fputc | fputs )
  33       params=x,y;;
  34     fgets )
  35       params=x,y,z;;
  36     fread | fwrite )
  37       params=w,x,y,z;;
  38     *)
  39       echo $0: missing case for $f 2>&1; fail=1;;
  40   esac
  41   cat <<EOF || fail=1
  42 #   define $f($params) ${f}_unlocked ($params)
  43 #  endif
  44 EOF
  45 done
  46
  47 cat <<\EOF || fail=1
  48
  49 # endif /* USE_UNLOCKED_IO */
  50 #endif /* UNLOCKED_IO_H */
  51 EOF
  52
  53 (exit $fail); exit