Mario Fetka
63 lines
1.7 KiB
Bash
Executable File
63 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
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#
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# Compare QDSPC with the backing filesystem's unprivileged free blocks and the
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# configured Queue reserve. Two stat samples bracket QDSPC so unrelated small
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# writes cannot turn a correct calculation into a false failure.
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set -eu
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queue_tool=${BONGO_QUEUE_TOOL:-/usr/bin/bongo-queuetool}
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run_as=${BONGO_TEST_RUN_AS:-bongo}
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if [ "$(id -un)" = "$run_as" ]; then
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as_bongo=
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else
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as_bongo="sudo -n -u $run_as"
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fi
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set -- $($as_bongo "$queue_tool" space details)
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if [ "$#" -ne 5 ]; then
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echo "STQ-03: unexpected detailed space response" >&2
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exit 1
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fi
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free_before=$1
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free_after=$2
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reserve=$3
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reported=$4
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block=$5
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for value in "$free_before" "$free_after" "$reserve" "$reported" "$block"; do
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case "$value" in
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''|*[!0-9]*)
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echo "STQ-03: detailed space response contains a non-integer" >&2
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exit 1
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;;
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esac
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done
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expected_before=$((free_before > reserve ? free_before - reserve : 0))
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expected_after=$((free_after > reserve ? free_after - reserve : 0))
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lower=$expected_before
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upper=$expected_after
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if [ "$lower" -gt "$upper" ]; then
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lower=$expected_after
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upper=$expected_before
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fi
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# Permit one allocation unit at either side of the bracket.
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lower=$((lower > block ? lower - block : 0))
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upper=$((upper + block))
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if [ "$reported" -lt "$lower" ] || [ "$reported" -gt "$upper" ]; then
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echo "STQ-03: QDSPC $reported is outside expected range $lower..$upper" >&2
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exit 1
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fi
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if [ "$free_before" -gt "$reserve" ] && [ "$reported" -ge "$free_before" ]; then
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echo "STQ-03: configured reserve was not subtracted" >&2
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exit 1
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fi
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printf 'STQ-03 PASS free-before=%s free-after=%s reserve=%s reported=%s block=%s\n' \
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"$free_before" "$free_after" "$reserve" "$reported" "$block"
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