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Make sure we are not running several instances.

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idea from otto@openbsd
This commit is contained in:
Antoine Jacoutot 2014-05-28 10:44:35 +02:00
commit b3e6f5f7e0
1 changed files with 10 additions and 1 deletions
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openup
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@ -95,10 +95,11 @@ _TMPDIR=$(mktemp -dp ${_TMP} .openup-XXXXXXXXXX) || exit 1
_TMPKEY="${_TMPDIR}/key" _TMPKEY="${_TMPDIR}/key"
_TMPSPLITCERT="${_TMPDIR}/cert" _TMPSPLITCERT="${_TMPDIR}/cert"
_TMPVUXML="${_TMPDIR}/vuxml" _TMPVUXML="${_TMPDIR}/vuxml"
_PID="/var/run/${0##*/}.pid"
export PKG_PATH=${PKG_PATH_UPDATE}:${PKG_PATH_MAIN} export PKG_PATH=${PKG_PATH_UPDATE}:${PKG_PATH_MAIN}
trap "rm -rf ${_TMPDIR}" 1 2 3 13 15 trap "rm -rf ${_TMPDIR} ${_PID}" 1 2 3 13 15
pr_bigarrow() { pr_bigarrow() {
if [ -z "${checkmode}" ]; then if [ -z "${checkmode}" ]; then
@ -303,6 +304,13 @@ if [ "${checkmode}" ]; then
fi fi
fi fi
if [ -f ${_PID} ]; then
pr_error "openup is already running ($(cat ${_PID})):"
pr_error "${_PID}"
exit 1
fi
echo $$ >${_PID}
check_openupd check_openupd
if [ -n "${exclude_kernel}" ]; then if [ -n "${exclude_kernel}" ]; then
@ -330,3 +338,4 @@ fi
do_i_need_to_reboot do_i_need_to_reboot
rm -rf ${_TMPDIR} rm -rf ${_TMPDIR}
rm ${_PID}