azerothcore-wotlk/bin/runners/run-engine

#!/bin/bash

function checkStatus() {
    # wipe do : destroy old screens + ls
    screen -wipe
    if screen -ls $1 | grep -q "No Sockets found"
    then 
    return 0
    else 
    return 1
    fi
}

function starter() {
    local CURRENT_PATH="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

    cd $BINPATH

    mkdir -p "$LOGS_PATH"

    TRACE_BEGIN_STRING="SIGSEGV"
    TRACE_FILE="$LOGS_PATH/"$SCREEN_NAME"_trace.log"
    ERR_FILE="$LOGS_PATH/"$SCREEN_NAME"_error.log"
    SYSLOG="$LOGS_PATH/"$SCREEN_NAME"_system.log"
    SYSERR="$LOGS_PATH/"$SCREEN_NAME"_system.err"
    LINKS_FILE="$LOGS_PATH/"$SCREEN_NAME"_crash_links.link"

    $CURRENT_PATH/starter $SERVERBIN $GDB "$CONFIG" "$SYSLOG" "$SYSERR" $GDB_ENABLED
}


function restarter() {
    local CURRENT_PATH="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
    cd $BINPATH

    mkdir -p "$LOGS_PATH"

    TRACE_BEGIN_STRING="SIGSEGV"
    TRACE_FILE="$LOGS_PATH/"$SCREEN_NAME"_trace.log"
    ERR_FILE="$LOGS_PATH/"$SCREEN_NAME"_error.log"
    SYSLOG="$LOGS_PATH/"$SCREEN_NAME"_system.log"
    SYSERR="$LOGS_PATH/"$SCREEN_NAME"_system.err"
    LINKS_FILE="$LOGS_PATH/"$SCREEN_NAME"_crash_links.link"

    if [ ! -f $TRACE_FILE ]; then
        touch $TRACE_FILE
    fi

    while :
    do
    if checkStatus $SCREEN_NAME; then
        DATE=$(date)
        echo "Restarting $SCREEN_NAME Core blizz($DATE)"
        echo $PID
        if [ $GDB_ENABLED -eq 1 ]; then
                echo "GDB enabled"
                grep -B 10 -A 1800 "$TRACE_BEGIN_STRING" "$SYSLOG" >> "$TRACE_FILE"
                cat "$SYSERR" > "$ERR_FILE"
                screen -A -m -d -S $SCREEN_NAME "$CURRENT_PATH/starter" $SERVERBIN $GDB "$CONFIG" "$SYSLOG" "$SYSERR" 1
        fi
    
        if [ $GDB_ENABLED -eq 0 ]; then
                echo "GDB disabled"
                screen -A -m -d -S $SCREEN_NAME "$CURRENT_PATH/starter" $SERVERBIN null "$CONFIG" null null 0
        fi
        fi

        sleep 15
    done
}