107 lines
2.3 KiB
Bash
107 lines
2.3 KiB
Bash
#!/bin/sh
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#===============================================================================
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#
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# Copyright (C) 2022 by Digi International Inc.
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# All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 as published by
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# the Free Software Foundation.
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#
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#
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# !Description: Initialize Crank demo
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#
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#===============================================================================
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readonly DEMO="##CRANK_DEMO_PATH##"
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readonly DEMO_OPTS="##CRANK_DEMO_OPTIONS##"
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readonly DEMO_ENV="##CRANK_DEMO_ENV##"
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readonly SB_LAUNCHER="sb-launcher"
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readonly SB_LAUNCHER_SCRIPT="/usr/bin/${SB_LAUNCHER}"
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readonly CRANK_DEMO="crank-demo"
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readonly PID_FILE="/run/${CRANK_DEMO}.pid"
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[ -f "/etc/profile.d/tslib.sh" ] && . /etc/profile.d/tslib.sh
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log() {
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if type "systemd-cat" >/dev/null 2>/dev/null; then
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systemd-cat -p "${1}" -t "${CRANK_DEMO}" printf "%s" "${2}"
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fi
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logger -p "${1}" -t "${CRANK_DEMO}" "${2}"
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}
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get_crank_demo_pid() {
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local pids="$(pidof -o $$ "${SB_LAUNCHER}" 2>/dev/null)"
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[ -n "${pids}" ] || return 1
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for pid in ${pids}; do
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local cmd_line=$(xargs -0 < /proc/${pid}/cmdline)
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local app="${cmd_line##* }"
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[ "${app}" = "${DEMO}" ] && { echo "${pid}"; return 0; }
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done
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return 1
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}
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check_is_running() {
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local pid
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if [ -f "${PID_FILE}" ]; then
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pid="$(cat ${PID_FILE})"
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else
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pid="$(get_crank_demo_pid)"
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echo "${pid}" > ${PID_FILE}
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fi
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if [ "${pid}" ]; then
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kill -0 "${pid}" >/dev/null 2>&1 && return 0
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fi
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return 1
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}
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stop() {
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check_is_running || { rm -f "${PID_FILE}"; return; }
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local pid="$(cat ${PID_FILE})"
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kill -TERM "${pid}" >/dev/null 2>&1
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local STOP_TIMEOUT="5"
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for i in $(seq ${STOP_TIMEOUT}); do
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check_is_running || { rm -f "${PID_FILE}"; log info "stopped"; break; }
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if [ "${i}" -eq ${STOP_TIMEOUT} ]; then
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log warning "stop: ${CRANK_DEMO} did not stop gracefully"
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kill -KILL "${pid}" >/dev/null 2>&1
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fi
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sleep 1
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done
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}
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start() {
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check_is_running && { log warning "start: ${CRANK_DEMO} ALREADY running"; exit 0; }
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env ${DEMO_ENV} ${SB_LAUNCHER_SCRIPT} ${DEMO_OPTS} ${DEMO} >/dev/null 2>&1 &
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if [ $? -eq 0 ]; then
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echo $! > ${PID_FILE}
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log info "started"
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fi
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}
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case "$1" in
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start)
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start
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;;
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stop)
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stop
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;;
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restart)
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stop
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sleep 1
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start
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;;
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*)
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echo "Usage: $0 {start|stop|restart}"
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exit 1
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;;
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esac
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