134 lines
2.6 KiB
Bash
134 lines
2.6 KiB
Bash
#!/bin/sh
|
|
#===============================================================================
|
|
#
|
|
# Copyright (C) 2024 by Digi International Inc.
|
|
# All rights reserved.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify it
|
|
# under the terms of the GNU General Public License version 2 as published by
|
|
# the Free Software Foundation.
|
|
#
|
|
#
|
|
# !Description: Initialize LVGL demo
|
|
#
|
|
#===============================================================================
|
|
|
|
readonly DEMO_NAME="lvgl_demo"
|
|
readonly DEMO_PATH="/usr/bin/${DEMO_NAME}"
|
|
readonly DEMO_TITLE="LVGL Demo Application"
|
|
readonly DEMO_DISPLAY="##DEMO_DISPLAY##"
|
|
readonly DEMO_ENV="##DEMO_ENV##"
|
|
readonly PID_FILE="/run/${DEMO_NAME}.pid"
|
|
|
|
log() {
|
|
if type "systemd-cat" >/dev/null 2>/dev/null; then
|
|
systemd-cat -p "${1}" -t "${DEMO_NAME}" printf "%s" "${2}"
|
|
fi
|
|
logger -p "${1}" -t "${DEMO_NAME}" "${2}"
|
|
}
|
|
|
|
get_demo_pid() {
|
|
local pid="$(pgrep -f ${DEMO_PATH})"
|
|
|
|
[ -n "${pid}" ] && { echo "${pid}"; return 0; }
|
|
|
|
return 1
|
|
}
|
|
|
|
check_is_running() {
|
|
local pid
|
|
|
|
if [ -s "${PID_FILE}" ]; then
|
|
pid="$(cat ${PID_FILE})"
|
|
else
|
|
pid="$(get_demo_pid)"
|
|
echo "${pid}" > ${PID_FILE}
|
|
fi
|
|
|
|
if [ "${pid}" ]; then
|
|
kill -0 "${pid}" >/dev/null 2>&1 && return 0
|
|
fi
|
|
|
|
rm -f "${PID_FILE}"
|
|
|
|
return 1
|
|
}
|
|
|
|
wait_for_wayland() {
|
|
local count=20
|
|
local wayland_socket="/run/user/0/${DEMO_DISPLAY}"
|
|
|
|
while [ ! -S "${wayland_socket}" ]; do
|
|
sleep 1
|
|
count=$((count-1))
|
|
if [ "${count}" = 0 ]; then
|
|
return 1
|
|
fi
|
|
done
|
|
sleep 1
|
|
return 0
|
|
}
|
|
|
|
stop() {
|
|
check_is_running || return
|
|
|
|
local pid="$(cat ${PID_FILE})"
|
|
kill -TERM "${pid}" >/dev/null 2>&1
|
|
|
|
local STOP_TIMEOUT="5"
|
|
for i in $(seq ${STOP_TIMEOUT}); do
|
|
check_is_running || { log info "stopped"; break; }
|
|
if [ "${i}" -eq ${STOP_TIMEOUT} ]; then
|
|
log warning "stop: ${DEMO_NAME} did not stop gracefully"
|
|
kill -KILL "${pid}" >/dev/null 2>&1
|
|
fi
|
|
sleep 1
|
|
done
|
|
}
|
|
|
|
start() {
|
|
check_is_running && { log warning "start: ${DEMO_NAME} ALREADY running"; exit 0; }
|
|
|
|
if [ -d "/usr/share/wayland" ]; then
|
|
wait_for_wayland
|
|
else
|
|
# Disable the cursor when displaying at full screen on fbdev
|
|
echo "0" > /sys/class/graphics/fbcon/cursor_blink
|
|
fi
|
|
|
|
# Launch demo
|
|
env ${DEMO_ENV} ${DEMO_PATH} >/dev/null 2>&1 &
|
|
|
|
if [ $? -eq 0 ]; then
|
|
echo $! > ${PID_FILE}
|
|
log info "$(cat ${PID_FILE})"
|
|
log info "started"
|
|
fi
|
|
}
|
|
|
|
case "$1" in
|
|
start)
|
|
echo -n "Starting ${DEMO_TITLE}: "
|
|
start
|
|
echo "done."
|
|
;;
|
|
stop)
|
|
stop
|
|
echo -n "Stopping ${DEMO_TITLE}: "
|
|
if [ -n "`/bin/pidof ${DEMO_PATH}`" ] ; then
|
|
echo "FAIL"
|
|
else
|
|
echo "OK"
|
|
fi
|
|
;;
|
|
restart)
|
|
stop
|
|
sleep 1
|
|
start
|
|
;;
|
|
*)
|
|
echo "Usage: $0 {start|stop|restart}"
|
|
exit 1
|
|
;;
|
|
esac
|