#!/bin/bash

accountid=$(cat /etc/ctrinfo.json | jq .server_admin | sed -e 's/"//g')
pid_file=/var/run/dovecot_lmtp_watch.sh.pid


exec 9>> ${pid_file}

flock -n 9
if [[ $? -ne 0 ]] ; then
    echo "${pid_file} locked, other process running"
    exit 1
fi

#
if [[ -e /var/fixlmtpstack/sh_config ]] ; then
    source /var/fixlmtpstack/sh_config
fi

maxproc=$(doveconf | grep default_process_limit | awk -F"=" '{print $2}' |sed -e 's/[[:space:]][[:space:]]*//g')
threshholdproc=$(echo $maxproc ${THRESHHOLDRATIO} | awk '{printf("%d\n",$1 * $2 / 100 ) }')

echo "Start lmtp process num check"
curproccnt=$(pgrep -f 'dovecot/lmtp' | wc -l)
if [[ ${curproccnt} -le ${threshholdproc} ]] ; then
    echo "lmtp process num (${curproccnt}) is less than ${threshholdproc}"
    flock -u 9
    exit 0
fi

rstflg=0
for chkcnt in `seq ${LOOPCOUNT}`  ; do
    curproccnt=$(pgrep -f 'dovecot/lmtp' | wc -l)
    if [[ ${curproccnt} -gt ${THRESHOLDPROC} ]] ; then
        rstflg=$( expr ${rstflg} + 1 )
    fi
    sleep ${SLEEPTIME}
done

if [[ ${rstflg} -eq 3 ]] ; then
    echo "lmtp process num is greter than ${threshholdproc}, dovecot restart"
    timeout 5 systemctl restart dovecot
fi

flock -u 9
exit 0