54 lines
1.3 KiB
Bash
54 lines
1.3 KiB
Bash
#!/bin/sh
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#
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# Transfer a large chunk of data through pv using pipes, sending it in a
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# bursty fashion, and check data correctness afterwards.
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rm -f "${workFile1}" "${workFile2}" 2>/dev/null
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# exit on non-zero return codes
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set -e
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# generate some data
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dd if=/dev/urandom of="${workFile1}" bs=1024 count=10240 2>/dev/null
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CKSUM1=$(cksum "${workFile1}" | awk '{print $1}')
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# read through pv and test afterwards
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(
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dd if="${workFile1}" bs=1 count=9000
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sleep 1
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dd if="${workFile1}" bs=1 skip=9000 count=1240
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sleep 1
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dd if="${workFile1}" bs=1024 skip=10 count=1014
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sleep 1
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dd if="${workFile1}" bs=1024 skip=1024 count=1024
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sleep 1
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dd if="${workFile1}" bs=1024 skip=2048
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) 2>/dev/null | "${testSubject}" -q -L 2M | cat > "${workFile2}"
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CKSUM2=$(cksum "${workFile2}" | awk '{print $1}')
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test "x$CKSUM1" = "x$CKSUM2"
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# same again but with one less pipe
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(
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dd if="${workFile1}" bs=1 count=9000
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sleep 1
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dd if="${workFile1}" bs=1 skip=9000 count=1240
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sleep 1
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dd if="${workFile1}" bs=1024 skip=10 count=1014
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sleep 1
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dd if="${workFile1}" bs=1024 skip=1024 count=1024
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sleep 1
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dd if="${workFile1}" bs=1024 skip=2048
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) 2>/dev/null | "${testSubject}" -q -L 2M > "${workFile2}"
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CKSUM2=$(cksum "${workFile2}" | awk '{print $1}')
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test "x$CKSUM1" = "x$CKSUM2"
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# clean up
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rm -f "${workFile1}" "${workFile2}" 2>/dev/null
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# EOF
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