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|
#!/usr/bin/env bash
testdir=$(readlink -f "$(dirname "$0")")
rootdir=$(readlink -f "$testdir/../../")
source "$testdir/common.sh"
cleanup() {
rm -f "$test_file0"{,.link}
rm -f "$test_file1"{,.link}
}
append() {
local dump0
local dump1
dump0=$(gen_bytes 32)
dump1=$(gen_bytes 32)
printf '%s' "$dump0" > "$test_file0"
printf '%s' "$dump1" > "$test_file1"
"${DD_APP[@]}" --if="$test_file0" --of="$test_file1" --oflag=append
[[ $(< "$test_file1") == "${dump1}${dump0}" ]]
}
directory() {
NOT "${DD_APP[@]}" --if="$test_file0" --iflag=directory --of="$test_file0"
NOT "${DD_APP[@]}" --if="$test_file0" --of="$test_file0" --oflag=directory
}
nofollow() {
local test_file0_link=$test_file0.link
local test_file1_link=$test_file1.link
ln -fs "$test_file0" "$test_file0_link"
ln -fs "$test_file1" "$test_file1_link"
NOT "${DD_APP[@]}" --if="$test_file0_link" --iflag=nofollow --of="$test_file1"
NOT "${DD_APP[@]}" --if="$test_file0" --of="$test_file1_link" --oflag=nofollow
# Do an extra step of checking if we actually can follow symlinks
gen_bytes 512 > "$test_file0"
"${DD_APP[@]}" --if="$test_file0_link" --of="$test_file1"
[[ $(< "$test_file0") == "$(< "$test_file1")" ]]
}
noatime() {
local atime_if
local atime_of
# It seems like spdk_dd doesn't update the atime in case 0 bytes are copied.
# This differs from how standard dd works for instance
gen_bytes 512 > "$test_file0"
atime_if=$(stat --printf="%X" "$test_file0")
atime_of=$(stat --printf="%X" "$test_file1")
"${DD_APP[@]}" --if="$test_file0" --iflag=noatime --of="$test_file1"
((atime_if == $(stat --printf="%X" "$test_file0")))
((atime_of == $(stat --printf="%X" "$test_file1")))
"${DD_APP[@]}" --if="$test_file0" --of="$test_file1"
((atime_if < $(stat --printf="%X" "$test_file0")))
}
io() {
local flags_ro flags_rw flag_ro flag_rw
# O_NONBLOCK is actually a no-op, from a functional perspective, while
# open()ing a regular file, but let's keep it just to test its usage.
flags_ro=(direct nonblock)
flags_rw=("${flags_ro[@]}" sync dsync)
# simply check if data was correctly copied between files
for flag_ro in "${flags_ro[@]}"; do
gen_bytes 512 > "$test_file0"
for flag_rw in "${flags_rw[@]}"; do
"${DD_APP[@]}" \
--if="$test_file0" \
--iflag="$flag_ro" \
--of="$test_file1" \
--oflag="$flag_rw"
[[ $(< "$test_file0") == "$(< "$test_file1")" ]]
done
done
}
tests() {
printf '* First test run%s\n' \
"${msg[liburing_in_use]}" >&2
run_test "dd_flag_append" append
run_test "dd_flag_directory" directory
run_test "dd_flag_nofollow" nofollow
run_test "dd_flag_noatime" noatime
run_test "dd_flags_misc" io
}
tests_forced_aio() {
printf '* Second test run%s\n' \
"${msg[liburing_in_use ? 2 : 0]}" >&2
DD_APP+=("--aio")
run_test "dd_flag_append_forced_aio" append
run_test "dd_flag_directory_forced_aio" directory
run_test "dd_flag_nofollow_forced_aio" nofollow
run_test "dd_flag_noatime_forced_aio" noatime
run_test "dd_flags_misc_forced_aio" io
}
msg[0]=", using AIO"
msg[1]=", liburing in use"
msg[2]=", disabling liburing, forcing AIO"
trap "cleanup" EXIT
test_file0=$SPDK_TEST_STORAGE/dd.dump0
test_file1=$SPDK_TEST_STORAGE/dd.dump1
tests
tests_forced_aio
|
