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https://github.com/sdr-enthusiasts/docker-adsb-ultrafeeder.git
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move gpsd_mlat_restart into mlat-client scripting
add some wait time for receiver to be stationary
This commit is contained in:
Matthias Wirth
parent
04e7707600
commit
e1280accdd
7 changed files with 106 additions and 98 deletions
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@ -1,2 +0,0 @@
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#!/bin/sh
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exec /etc/s6-overlay/scripts/gpsd_mlat_restart
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@ -1 +0,0 @@
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longrun
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@ -1,54 +0,0 @@
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#!/command/with-contenv bash
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# shellcheck shell=bash disable=SC2015,SC2016,SC1091,SC2001,SC2154
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#---------------------------------------------------------------------------------------------
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# Copyright (C) 2023-2024, Ramon F. Kolb (kx1t) and contributors
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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 as published by the
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# Free Software Foundation, either version 3 of the License, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along with this program.
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# If not, see <https://www.gnu.org/licenses/>.
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#---------------------------------------------------------------------------------------------
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source /scripts/common
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# Wait until all mlat-client instances have started
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while [[ ! -f /run/.all_mlatclient_instances_have_started ]]; do
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sleep 5 & wait $!
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done
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rm -f /run/.all_mlatclient_instances_have_started
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# Check every 60 secs if GPSD has been enabled
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while [[ ! -f /run/readsb/gpsd.json ]] || [[ "$(jq -r .lat /run/readsb/gpsd.json)" == "null" ]]; do
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sleep 60 & wait $!
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done
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# Now wait a bit to allow GPS to establish itself
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sleep "${GPSD_INITIAL_WAIT:-60}"
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# Get initial lat/lon/alt
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lat="${LAT:-${READSB_LAT:-$(jq -r .lat /run/readsb/gpsd.json)}}"
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lon="${LONG:-${READSB_LON:-$(jq -r .lon /run/readsb/gpsd.json)}}"
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"${s6wrap[@]}" echo "GPSD is active. Your mlat-client(s) will restart with new coordinates if you move more than ${GPSD_MIN_DISTANCE:-20} meters"
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while :; do
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new_lat="$(jq -r .lat /run/readsb/gpsd.json)"
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new_lon="$(jq -r .lon /run/readsb/gpsd.json)"
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distance="$(nice -n 20 distance "$lat" "$lon" "$new_lat" "$new_lon")"
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if (( ${distance%%.*} > ${GPSD_MIN_DISTANCE:-20} )); then
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"${s6wrap[@]}" echo "Receiver moved ${distance%%.*} meters - restarting all mlat-clients"
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# kill the mlat-client instances so they get restarted with the new GPS coords
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pkill -f "/usr/bin/python3 /usr/bin/mlat-client" >/dev/null 2>&1
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lat="$new_lat"
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lon="$new_lon"
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fi
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sleep "${GPSD_CHECK_INTERVAL:-30}" & wait $!
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done
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@ -51,18 +51,67 @@ then
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exec sleep infinity
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fi
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if [[ -z "$LAT$READSB_LAT" ]] && ! grep -qi "gpsd_in" <<< "$ULTRAFEEDER_CONFIG" && ! grep -qi "gpsd_in" <<< "$ULTRAFEEDER_NET_CONNECTOR"; then
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function check_gpsd() {
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if [[ -z "$GPSD" ]] || ! [[ -f /run/readsb/gpsd.json ]]; then
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return 1
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fi
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if new_lat="$(jq -r .lat /run/readsb/gpsd.json)" \
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&& [[ "$new_lat" != "null" ]] \
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&& new_lon="$(jq -r .lon /run/readsb/gpsd.json)" \
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&& [[ "$new_lon" != "null" ]] \
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&& new_alt="$(jq -r .altMSL /run/readsb/gpsd.json)" \
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&& [[ "$new_alt" != "null" ]] \
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then
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# yay, vars are set and not null
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if ! [[ -f "$LOCATION_PERSIST" ]]; then
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echo "$new_lat" "$new_lon" "$new_alt" > "$LOCATION_PERSIST"
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fi
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return 0
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else
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new_lat=""
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new_lon=""
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new_alt=""
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return 1
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fi
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}
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if grep -qs "gpsd" <<< "$ULTRAFEEDER_CONFIG" || grep -qs "gpsd" <<< "$ULTRAFEEDER_NET_CONNECTOR"; then
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GPSD=1
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LOCATION_PERSIST=/var/globe_history/gpsd_last_location
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if [[ -f "$LOCATION_PERSIST" ]] && { grep -qs "gpsd" <<< "$ULTRAFEEDER_CONFIG" || grep -qs "gpsd" <<< "$ULTRAFEEDER_NET_CONNECTOR"; }; then
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read new_lat new_lon new_alt < "$LOCATION_PERSIST"
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"${s6wrap[@]}" --args echo "Using last known GPSD location for startup: $new_lat,$new_lon (alt: $new_alt)"
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else
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# wait for gpsd to continue with startup
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"${s6wrap[@]}" --args echo "GPSD configured, no location set, no persistent location found, waiting for gpsd to provide location data"
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while ! check_gpsd; do
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sleep "${GPSD_CHECK_INTERVAL:-30}" & wait $!
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done
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"${s6wrap[@]}" --args echo "GPSD has provided location data, starting mlat-clients"
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fi
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# initialize "old" location for gpsd movement detection
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old_lat="$new_lat"
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old_lon="$new_lon"
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# in seconds
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no_movement_required=19
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# set no_movement to a number higher than the required time of no movement
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# this way on startup there is no bogus message printed about starting mlat-clients with a new location
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no_movement=$(( 2 * no_movement_required ))
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else
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if [[ -z "$LAT$READSB_LAT" ]]; then
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"${s6wrap[@]}" --args echo "ERROR: READSB_LAT or LAT must be defined or GPSD must be enabled - MLAT will be disabled."
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exec sleep infinity
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fi
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if [[ -z "$LONG$READSB_LON" ]] && ! grep -qi "gpsd_in" <<< "$ULTRAFEEDER_CONFIG" && ! grep -qi "gpsd_in" <<< "$ULTRAFEEDER_NET_CONNECTOR"; then
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fi
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if [[ -z "$LONG$READSB_LON" ]]; then
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"${s6wrap[@]}" --args echo "ERROR: READSB_LON or LONG must be defined or GPSD must be enabled - MLAT will be disabled."
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exec sleep infinity
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fi
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if [[ -z "$ALT$READSB_ALT" ]] && ! grep -qi "gpsd_in" <<< "$ULTRAFEEDER_CONFIG" && ! grep -qi "gpsd_in" <<< "$ULTRAFEEDER_NET_CONNECTOR"; then
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fi
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if [[ -z "$ALT$READSB_ALT" ]]; then
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"${s6wrap[@]}" --args echo "ERROR: READSB_ALT or ALT must be defined or GPSD must be enabled - MLAT will be disabled."
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exec sleep infinity
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fi
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fi
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# MLAT_CONFIG has the following format:
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@ -176,20 +225,6 @@ do
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fi
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# add LAT/LON/ALT to instance:
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# see if we need to use GPS coords:
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unset new_lat
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unset new_lon
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unset new_alt
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if [[ -f /run/.gpsd_is_active && -f /run/readsb/receiver.json ]]; then
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new_lat="$(jq -r .lat /run/readsb/receiver.json)"
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new_lon="$(jq -r .lon /run/readsb/receiver.json)"
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new_alt="$(jq -r .alt_m_amsl /run/readsb/receiver.json)"
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if [[ "$new_lat" == "null" ]] || [[ "$new_lon" == "null" ]] || [[ "$new_alt" == "null" ]]; then
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unset new_lat
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unset new_lon
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unset new_alt
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fi
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fi
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if [[ -n "${new_lat:-$lat_arg}" ]]; then
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MLAT_PARAM+=(--lat "${new_lat:-$lat_arg}")
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@ -255,11 +290,43 @@ do
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done
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sleep 5 & wait $!
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touch /run/.all_mlatclient_instances_have_started
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# Now iterate over all MLAT-client instances and check if they are still running:
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while true
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do
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if check_gpsd; then
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distance="$(distance "$old_lat" "$old_lon" "$new_lat" "$new_lon")"
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if (( ${distance%%.*} > ${GPSD_MIN_DISTANCE:-20} )); then
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# kill the mlat-client instances so they get restarted with the new GPS coords
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if pkill -f "/usr/bin/python3 /usr/bin/mlat-client" >/dev/null 2>&1; then
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"${s6wrap[@]}" --args echo "Receiver moved ${distance%%.*} meters - Stopping all mlat-clients"
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else
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"${s6wrap[@]}" --args echo "Receiver moved ${distance%%.*} meters"
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fi
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old_lat="$new_lat"
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old_lon="$new_lon"
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# new location means the receiver has moved, sleep a bit and then check again
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no_movement=0
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sleep "${GPSD_CHECK_INTERVAL:-30}" & wait $!
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# as the recevier has moved, mlat-clients are not restarted until there has been no movement for some time
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# thus we continue skipping the mlat-client restart section of the loop
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continue
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else
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# no movement during the checking interval, allow mlat-clients to be restarted
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(( no_movement += ${GPSD_CHECK_INTERVAL:-30} )) || true
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if (( no_movement < no_movement_required )); then
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sleep "${GPSD_CHECK_INTERVAL:-30}" & wait $!
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continue
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elif (( no_movement / ${GPSD_CHECK_INTERVAL:-30} == no_movement_required / ${GPSD_CHECK_INTERVAL:-30} )); then
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"${s6wrap[@]}" --args echo "Receiver stationary - starting all mlat-clients with new location"
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echo "$new_lat" "$new_lon" "$new_alt" > "$LOCATION_PERSIST"
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fi
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fi
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fi
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for mlat_pid in "${!pid_array[@]}"
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do
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if ! kill -0 "${mlat_pid}" >/dev/null 2>&1
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@ -277,16 +344,11 @@ do
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execstring="$(echo ${MLAT_CMD} ${pid_array[$mlat_pid]} | xargs)"
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# If GPSD is active, then replace the lat/lon/alt params with the ones from GPSD
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if [[ -f /run/readsb/gpsd.json ]] && [[ "$(jq -r .lat /run/readsb/gpsd.json)" != "null" ]]; then
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new_lat="$(jq -r .lat /run/readsb/gpsd.json)"
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new_lon="$(jq -r .lon /run/readsb/gpsd.json)"
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new_alt="$(jq -r .altMSL /run/readsb/gpsd.json)"
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if [[ "$new_lat" != "null" ]] && [[ "$new_lon" != "null" ]] && [[ "$new_alt" != "null" ]]; then
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if [[ -n new_lat ]];then
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execstring="$(sed "s/^\(.*\s\+--lat\s\+\)[0-9.-]\+\(.*\)$/\1${new_lat}\2/g" <<< "$execstring")"
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execstring="$(sed "s/^\(.*\s\+--lon\s\+\)[0-9.-]\+\(.*\)$/\1${new_lon}\2/g" <<< "$execstring")"
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execstring="$(sed "s/^\(.*\s\+--alt\s\+\)[mft0-9.-]\+\(.*\)$/\1${new_alt}m\2/g" <<< "$execstring")"
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fi
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fi
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#shellcheck disable=SC2069,SC2086
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if [[ "${LOGLEVEL}" == "verbose" ]]; then
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@ -303,10 +365,5 @@ do
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fi
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done
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# If GPSD is running, do more frequent checks than if it's not running
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if [[ -f /run/readsb/gpsd.json ]] && [[ "$(jq -r .lat /run/readsb/gpsd.json)" != "null" ]]; then
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sleep 1 & wait $!
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else
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sleep 10 & wait $!
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fi
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sleep "${GPSD_CHECK_INTERVAL:-30}" & wait $!
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done
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@ -31,6 +31,14 @@ if ! [[ "$LOGLEVEL" =~ ^(verbose|error|none)$ ]]; then
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LOGLEVEL="verbose"
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fi
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LOCATION_PERSIST=/var/globe_history/gpsd_last_location
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if [[ -f "$LOCATION_PERSIST" ]] && { grep -qs "gpsd" <<< "$ULTRAFEEDER_CONFIG" || grep -qs "gpsd" <<< "$ULTRAFEEDER_NET_CONNECTOR"; }; then
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read LAT LON ALT < "$LOCATION_PERSIST"
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READSB_LAT=""
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READSB_LON=""
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READSB_ALT=""
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fi
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# Build the readsb command line based on options
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READSB_BIN="/usr/local/bin/readsb"
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