tests/test-shell.sh

   1 #!/usr/bin/env sh
   2
   3 # Assume that the current directory is the tests/ directory.
   4 # If this fails we're probably running the test from the wrong
   5 # directory.
   6 f=test-shell.img
   7 if [ ! -r $f ]; then
   8     echo "cannot find disk image $f" >&2
   9     exit 1
  10 fi
  11
  12 # nbdkit is supposed to set $tmpdir.  If it doesn't, it's an error.
  13 if [ ! -d $tmpdir ]; then
  14     echo "\$tmpdir was not set" >&2
  15     exit 1
  16 fi
  17
  18 # Check that SIGPIPE is not ignored unless we want it that way.
  19 if (type yes) >/dev/null 2>&1; then
  20     ignored=$(trap "" 13;
  21               ({ yes; echo $? >&3; } | head -c1) 3>&1 >/dev/null 2>&1)
  22     default=$(trap - 13;
  23               ({ yes; echo $? >&3; } | head -c1) 3>&1 >/dev/null 2>&1)
  24     if [ $ignored = $default ]; then
  25         echo "SIGPIPE was inherited ignored" >&2
  26         exit 1;
  27     fi
  28 fi
  29
  30 case "$1" in
  31     thread_model)
  32         echo parallel
  33         ;;
  34
  35     open)
  36         echo handle
  37         ;;
  38
  39     get_size)
  40         stat -L -c '%s' $f || exit 1
  41         ;;
  42
  43     pread)
  44         dd iflag=skip_bytes,count_bytes skip=$4 count=$3 if=$f || \
  45             exit 1
  46         ;;
  47
  48     pwrite)
  49         case $5 in
  50             '' | fua) ;;
  51             *)  echo "garbage flags: '$5'" >&2
  52                 exit 1;
  53         esac
  54         dd oflag=seek_bytes conv=notrunc seek=$4 of=$f || exit 1
  55         ;;
  56     can_write)
  57         ;;
  58
  59     flush)
  60         sync
  61         ;;
  62     can_flush)
  63         ;;
  64
  65     trim)
  66         case $5 in
  67             '' | fua) ;;
  68             *)  echo "garbage flags: '$5'" >&2
  69                 exit 1;
  70         esac
  71         fallocate -p -o $4 -l $3 -n $f
  72         ;;
  73     can_trim)
  74         # We can trim if the fallocate command exists.
  75         fallocate --help >/dev/null 2>&1 || exit 3
  76         ;;
  77
  78     zero)
  79         case $5 in
  80             '' | fua | may_trim | fua,may_trim ) ;;
  81             *)  echo "garbage flags: '$5'" >&2
  82                 exit 1;
  83         esac
  84         fallocate -z -o $4 -l $3 -n $f
  85         ;;
  86     can_zero)
  87         # We can zero efficiently if the fallocate command exists.
  88         fallocate --help >/dev/null 2>&1 || exit 3
  89         ;;
  90
  91     *)
  92         # Unknown methods must exit with code 2.
  93         exit 2
  94 esac
  95
  96 exit 0