#!/bin/sh

### BEGIN INIT INFO
# Provides:          pgpool2
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Should-Start:      postgresql
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: start pgpool-II
# Description: pgpool-II is a connection pool server and replication
#              proxy for PostgreSQL.
### END INIT INFO


PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/pgpool
PIDFILE=/var/run/pgpool.pid

test -x $DAEMON || exit 5

# Include pgpool defaults if available
if [ -f /etc/default/pgpool ] ; then
    . /etc/default/pgpool
fi

install -o postgres -d /var/run/pgpool

OPTS=""
if [ x"$PGPOOL_LOG_DEBUG" = x"yes" ]; then
    OPTS="$OPTS -d"
fi

. /lib/lsb/init-functions


is_running() {
    pidofproc -p $PIDFILE $DAEMON >/dev/null
}


d_start() {
    if is_running; then
        :
    else
        su -c "$DAEMON -n $OPTS 2>&1 </dev/null | logger -t pgpool -p ${PGPOOL_SYSLOG_FACILITY:-local0}.info >/dev/null 2>&1 &" - postgres
    fi
}


d_stop() {
    killproc -p $PIDFILE $DAEMON -INT
    status=$?
    [ $status -eq 0 ] || [ $status -eq 3 ]
    return $?
}


case "$1" in
    start)
    log_daemon_msg "Starting pgpool-II" pgpool
    d_start
    log_end_msg $?
    ;;
    stop)
    log_daemon_msg "Stopping pgpool-II" pgpool
    d_stop
    log_end_msg $?
    ;;
    status)
    is_running
    status=$?
    if [ $status -eq 0 ]; then
        log_success_msg "pgpool-II is running."
    else
        log_failure_msg "pgpool-II is not running."
    fi
    exit $status
    ;;
    restart|force-reload)
    log_daemon_msg "Restarting pgpool-II" pgpool
    d_stop && sleep 1 && d_start
    log_end_msg $?
    ;;
    try-restart)
    if $0 status >/dev/null; then
        $0 restart
    else
        exit 0
    fi
    ;;
    reload)
    exit 3
    ;;
    *)
    log_failure_msg "Usage: $0 {start|stop|status|restart|try-restart|reload|force-reload}"
    exit 2
    ;;
esac
