9 lines
363 B
Bash
9 lines
363 B
Bash
pgrep -x sha256sum >/dev/null && refuse "sha256sum is already running; end it (pkill sha256sum) and start the lab again."
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rm -f /root/topmem.txt
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for i in 1 2; do
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setsid -f sha256sum /dev/zero >/dev/null 2>&1 </dev/null
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done
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sleep 1
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pgrep -x sha256sum >"$LAB_STATE/pids"
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[ "$(wc -l <"$LAB_STATE/pids")" = 2 ] || die "couldn't start the lab's sha256sum processes"
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