57 lines
1.5 KiB
Bash
Executable File
57 lines
1.5 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Transfer a large chunk of data through pv using pipes, sending it in a
|
|
# bursty fashion, and check data correctness afterwards.
|
|
|
|
# Dummy assignments for "shellcheck".
|
|
testSubject="${testSubject:-false}"; workFile1="${workFile1:-.tmp1}"; workFile2="${workFile2:-.tmp2}"
|
|
|
|
# generate some data
|
|
dd if=/dev/urandom of="${workFile1}" bs=1024 count=10240 2>/dev/null
|
|
|
|
inputChecksum=$(cksum "${workFile1}" | awk '{print $1}')
|
|
|
|
# read through pv and test afterwards
|
|
(
|
|
dd if="${workFile1}" bs=1 count=9000
|
|
sleep 1
|
|
dd if="${workFile1}" bs=1 skip=9000 count=1240
|
|
sleep 1
|
|
dd if="${workFile1}" bs=1024 skip=10 count=1014
|
|
sleep 1
|
|
dd if="${workFile1}" bs=1024 skip=1024 count=1024
|
|
sleep 1
|
|
dd if="${workFile1}" bs=1024 skip=2048
|
|
) 2>/dev/null | "${testSubject}" -q -L 2M | cat > "${workFile2}"
|
|
|
|
outputChecksum=$(cksum "${workFile2}" | awk '{print $1}')
|
|
|
|
if ! test "${inputChecksum}" = "${outputChecksum}"; then
|
|
echo "checksum mismatch with dd | pv | cat"
|
|
exit 1
|
|
fi
|
|
|
|
# same again but with one less pipe
|
|
(
|
|
dd if="${workFile1}" bs=1 count=9000
|
|
sleep 1
|
|
dd if="${workFile1}" bs=1 skip=9000 count=1240
|
|
sleep 1
|
|
dd if="${workFile1}" bs=1024 skip=10 count=1014
|
|
sleep 1
|
|
dd if="${workFile1}" bs=1024 skip=1024 count=1024
|
|
sleep 1
|
|
dd if="${workFile1}" bs=1024 skip=2048
|
|
) 2>/dev/null | "${testSubject}" -q -L 2M > "${workFile2}"
|
|
|
|
outputChecksum=$(cksum "${workFile2}" | awk '{print $1}')
|
|
|
|
if ! test "${inputChecksum}" = "${outputChecksum}"; then
|
|
echo "checksum mismatch with dd | pv > file"
|
|
exit 1
|
|
fi
|
|
|
|
exit 0
|
|
|
|
# EOF
|