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Prevent re-entry

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This commit is contained in:
Kroese 2023-04-14 15:37:27 +02:00 committed by GitHub
parent 2e6372bbd5
commit 83cea7b77f
1 changed files with 8 additions and 2 deletions
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10
power.sh
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@ -5,9 +5,13 @@ set -eu
QEMU_MONPORT=7100
QEMU_POWERDOWN_TIMEOUT=8
_QEMU_PID=/run/qemu.pid
_QEMU_SHUTDOWN_COUNTER=/run/qemu.counter
rm -f "${_QEMU_PID}"
rm -f "${_QEMU_SHUTDOWN_COUNTER}"
# Allows for troubleshooting signals sent to the process
_trap(){
func="$1" ; shift
@ -19,7 +23,9 @@ _trap(){
_graceful_shutdown(){
local QEMU_MONPORT="${QEMU_MONPORT:-7100}"
local QEMU_POWERDOWN_TIMEOUT="${QEMU_POWERDOWN_TIMEOUT:-120}"
local QEMU_POWERDOWN_TIMEOUT="${QEMU_POWERDOWN_TIMEOUT:-8}"
[ -f "${_QEMU_SHUTDOWN_COUNTER}" ] && return
set +e
echo "Received $1 signal, shutting down..."
@ -43,7 +49,7 @@ _graceful_shutdown(){
done
echo "Quitting..."
echo 'quit' | nc -q 1 -w 1 localhost "${QEMU_MONPORT}">/dev/null || true
echo 'quit' | nc -q 1 -w 1 localhost "${QEMU_MONPORT:-7100}">/dev/null || true
return
}