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|
#!/usr/bin/env sh
# Assume that the current directory is the tests/ directory.
# If this fails we're probably running the test from the wrong
# directory.
f=test-shell.img
if [ ! -r $f ]; then
echo "cannot find disk image $f" >&2
exit 1
fi
# nbdkit is supposed to set $tmpdir. If it doesn't, it's an error.
if [ ! -d $tmpdir ]; then
echo "\$tmpdir was not set" >&2
exit 1
fi
# Check that SIGPIPE is not ignored unless we want it that way.
if (type yes) >/dev/null 2>&1; then
ignored=$(trap "" 13;
({ yes; echo $? >&3; } | head -c1) 3>&1 >/dev/null 2>&1)
default=$(trap - 13;
({ yes; echo $? >&3; } | head -c1) 3>&1 >/dev/null 2>&1)
if [ $ignored = $default ]; then
echo "SIGPIPE was inherited ignored" >&2
exit 1;
fi
fi
case "$1" in
thread_model)
echo parallel
;;
open)
echo handle
;;
get_size)
stat -L -c '%s' $f || exit 1
;;
pread)
dd iflag=skip_bytes,count_bytes skip=$4 count=$3 if=$f || \
exit 1
;;
pwrite)
case $5 in
'' | fua) ;;
*) echo "garbage flags: '$5'" >&2
exit 1;
esac
dd oflag=seek_bytes conv=notrunc seek=$4 of=$f || exit 1
;;
can_write)
;;
flush)
sync
;;
can_flush)
;;
trim)
case $5 in
'' | fua) ;;
*) echo "garbage flags: '$5'" >&2
exit 1;
esac
fallocate -p -o $4 -l $3 -n $f
;;
can_trim)
# We can trim if the fallocate command exists.
fallocate --help >/dev/null 2>&1 || exit 3
;;
zero)
case $5 in
'' | fua | may_trim | fua,may_trim ) ;;
*) echo "garbage flags: '$5'" >&2
exit 1;
esac
fallocate -z -o $4 -l $3 -n $f
;;
can_zero)
# We can zero efficiently if the fallocate command exists.
fallocate --help >/dev/null 2>&1 || exit 3
;;
*)
# Unknown methods must exit with code 2.
exit 2
esac
exit 0
|
