openrc/sh/s6.sh

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# Start / stop / status functions for s6 support
# Copyright (c) 2015 The OpenRC Authors.
# See the Authors file at the top-level directory of this distribution and
# https://github.com/OpenRC/openrc/blob/HEAD/AUTHORS
#
# This file is part of OpenRC. It is subject to the license terms in
# the LICENSE file found in the top-level directory of this
# distribution and at https://github.com/OpenRC/openrc/blob/HEAD/LICENSE
# This file may not be copied, modified, propagated, or distributed
# except according to the terms contained in the LICENSE file.
[ -z "${s6_service_path}" ] && s6_service_path="/var/svc.d/${RC_SVCNAME}"
_s6_force_kill() {
local pid
s6_service_link="${RC_SVCDIR}/s6-scan/${s6_service_path##*/}"
pid="${3%)}"
[ -z "${pid}" ] && return 0
if kill -0 "${pid}" 2> /dev/null; then
ewarn "Sending DOWN & KILL for ${RC_SVCNAME}"
s6-svc -dk "${s6_service_link}"
sleep 1
kill -0 "${pid}" 2>/dev/null && return 1
fi
return 0
}
s6_start()
{
if [ ! -d "${s6_service_path}" ]; then
eerror "${s6_service_path} does not exist."
return 1
fi
s6_service_link="${RC_SVCDIR}/s6-scan/${s6_service_path##*/}"
ebegin "Starting ${name:-$RC_SVCNAME}"
ln -sf "${s6_service_path}" "${s6_service_link}"
s6-svscanctl -na "${RC_SVCDIR}"/s6-scan
sleep 1.5
s6-svc -u "${s6_service_link}"
if [ -n "$s6_svwait_options_start" ]; then
s6-svwait ${s6_svwait_options_start} "${s6_service_link}"
fi
sleep 1.5
set -- $(s6-svstat "${s6_service_link}")
[ "$1" = "up" ]
eend $? "Failed to start ${name:-$RC_SVCNAME}"
}
s6_stop()
{
if [ ! -d "${s6_service_path}" ]; then
eerror "${s6_service_path} does not exist."
return 1
fi
s6_service_link="${RC_SVCDIR}/s6-scan/${s6_service_path##*/}"
ebegin "Stopping ${name:-$RC_SVCNAME}"
s6-svc -d -wD -T ${s6_service_timeout_stop:-60000} "${s6_service_link}"
set -- $(s6-svstat "${s6_service_link}")
2018-10-13 06:16:23 +08:00
[ "$1" = "up" ] &&
yesno "${s6_force_kill:-yes}" &&
_s6_force_kill "$@"
set -- $(s6-svstat "${s6_service_link}")
[ "$1" = "down" ]
eend $? "Failed to stop ${name:-$RC_SVCNAME}"
}
s6_status()
{
s6_service_link="${RC_SVCDIR}/s6-scan/${s6_service_path##*/}"
if [ -L "${s6_service_link}" ]; then
s6-svstat "${s6_service_link}"
else
_status
fi
}