From 2a42ad20b9730706ad371ae3787d4597c4e42276 Mon Sep 17 00:00:00 2001
From: sharath reddy <bs.reddy@huawei.com>
Date: Tue, 4 Jun 2019 11:53:49 +0530
Subject: Feature: 19.04 part-2

Change-Id: I0b52a6bb67c25c7955d58e29eb81a3cc9efea9e9
Signed-off-by: sharath reddy <bs.reddy@huawei.com>
---
 stacks/lwip_stack/release/script/nstack_fun.sh | 591 +++++++++++++++++++++++++
 1 file changed, 591 insertions(+)
 create mode 100755 stacks/lwip_stack/release/script/nstack_fun.sh

(limited to 'stacks/lwip_stack/release/script/nstack_fun.sh')

diff --git a/stacks/lwip_stack/release/script/nstack_fun.sh b/stacks/lwip_stack/release/script/nstack_fun.sh
new file mode 100755
index 0000000..fed3588
--- /dev/null
+++ b/stacks/lwip_stack/release/script/nstack_fun.sh
@@ -0,0 +1,591 @@
+#!/bin/bash
+
+check_file_size()
+{
+    if [ -n "$1" ]&&[ -f "$1" ]
+    then
+        local log_size=`stat -c %s $1`
+        if [ ${log_size} -gt $MAX_LOG_FILE_SIZE ]
+        then
+            mv $1 $1.bk
+        fi
+    fi
+}
+
+log()
+{
+    check_file_size $LOG_FILE
+
+    #1 line number
+    local printStr="$2"
+    cur_date=`date +'%m%d %H:%M:%S.%6N' -u`
+    pid=$$
+    file=$0
+    local log_head="I${cur_date} ${file##*/}:$1 ${pid}]"
+
+    printf "${log_head} $printStr\n" >> $LOG_FILE 2>/dev/null
+}
+
+get_call_stack()
+{
+    local proc_name="$1"
+    log $LINENO "gdb info in call stack:"
+    gdb -batch -ex "t a a bt" -p `pidof $proc_name`>> $LOG_FILE 2>/dev/null
+    log $LINENO "top in call stack:"
+    top -H -p `pidof $proc_name` -n 1 -b >> $LOG_FILE 2>/dev/null
+    log $LINENO "mpstat in call stack:"
+    mpstat -A >> $LOG_FILE 2>/dev/null
+}
+
+gdb_set()
+{
+    local mod="$1"
+    if [ "$mod" = "stop" ];then
+        gdb -batch -ex "set g_hbt_switch=0" -p `pidof nStackMain`
+        gdb -batch -ex "set g_hbt_switch=0" -p `pidof nStackMaster`
+        log $LINENO "gdb stop"
+    else
+        gdb -batch -ex "set g_hbt_switch=1" -p `pidof nStackMain`
+        gdb -batch -ex "set g_hbt_switch=1" -p `pidof nStackMaster`
+        log $LINENO "gdb start"
+    fi
+}
+
+get_core_mask()
+{
+    local sys_core=`cat /proc/cpuinfo | grep processor | wc -l`
+    log $LINENO "system has ${sys_core} cores"
+    #if sys_core too large 2^$sys_core will overflow; so reset sys_core; z00203440 20170323
+    if [ $sys_core -gt 8 ]
+    then
+        sys_core=8
+        log $LINENO "sys_core too large reset to ${sys_core}"
+    fi
+
+    base=`echo | awk -v ex=$sys_core 'BEGIN{a=2^ex; print a}'`
+    local temp=`expr $base - 1`
+    printf %X $temp
+    return $sys_core
+}
+
+init_log_file()
+{
+    if [ -n $LOG_FILE_DIR ]&&[ ! -f $LOG_FILE_DIR ]
+    then
+          sudo mkdir -p $LOG_FILE_DIR
+    fi
+
+    check_file_size $LOG_FILE
+
+    if [ -n $DPDK_FILE_DIR ]&&[ ! -f $DPDK_FILE_DIR ]
+    then
+        sudo mkdir -p $DPDK_FILE_DIR
+    fi
+
+    check_file_size $DPDK_FILE
+
+    #must create the directory under the current user account
+    if [ -n $RUNTIME_DIR ]&&[ ! -f $RUNTIME_DIR ]
+    then
+        mkdir -p $RUNTIME_DIR
+    fi
+}
+
+delete_log_file() {
+    if [ -n $RUNNING_FILE_DIR ]&&[ -d $RUNNING_FILE_DIR ]&&[ -n $RUNNING_FILE_NAME ]; then
+        rm -rf $RUNNING_FILE_DIR/*${RUNNING_FILE_NAME}*
+    fi
+    if [ -n $RUNNING_FILE_DIR ]&&[ -d $RUNNING_FILE_DIR ]&&[ -n $OPERATION_FILE_NAME ]; then
+        rm -rf $RUNNING_FILE_DIR/*${OPERATION_FILE_NAME}*
+    fi
+    if [ -n $RUNNING_FILE_DIR ]&&[ -d $RUNNING_FILE_DIR ]&&[ -n $GLOG_FAILURE_FILE_NAME ]; then
+        rm -rf $RUNNING_FILE_DIR/*${GLOG_FAILURE_FILE_NAME}*
+    fi
+    if [ -n $RUNNING_FILE_DIR ]&&[ -d $RUNNING_FILE_DIR ]&&[ -n $NSTACK_FAILURE_FILE_NAME ]; then
+        rm -rf $RUNNING_FILE_DIR/*${NSTACK_FAILURE_FILE_NAME}*
+    fi
+    if [ -n $MASTER_FILE_DIR ]&&[ -d $MASTER_FILE_DIR ]&&[ -n $MASTER_FILE_NAME ]; then
+        rm -rf $MASTER_FILE_DIR/*${MASTER_FILE_NAME}*
+    fi
+    if [ -n $MASTER_FILE_DIR ]&&[ -d $MASTER_FILE_DIR ]&&[ -n $GLOG_FAILURE_FILE_NAME ]; then
+        rm -rf $MASTER_FILE_DIR/*${GLOG_FAILURE_FILE_NAME}*
+    fi
+    if [ -n $MASTER_FILE_DIR ]&&[ -d $MASTER_FILE_DIR ]&&[ -n $NSTACK_FAILURE_FILE_NAME ]; then
+        rm -rf $MASTER_FILE_DIR/*${NSTACK_FAILURE_FILE_NAME}*
+    fi
+    if [ -n $LOG_FILE_DIR ]&&[ -d $LOG_FILE_DIR ]&&[ -n $LOG_FILE_NAME ]; then
+        rm -rf $LOG_FILE_DIR/*${LOG_FILE_NAME}*
+    fi
+    if [ -n $DPDK_FILE_DIR ]&&[ -d $DPDK_FILE_DIR ]&&[ -n $DPDK_FILE_NAME ]; then
+        rm -rf $DPDK_FILE_DIR/*${DPDK_FILE_NAME}*
+    fi
+    if [ -n $RUNTIME_DIR ]&&[ -d $RUNTIME_DIR ]; then
+        rm -rf $RUNTIME_DIR
+    fi
+    if [ -n ${MASTER_EXEC_PATH} ]&&[ -d $MASTER_EXEC_PATH ]; then
+        rm -rf $MASTER_EXEC_PATH
+    fi
+}
+
+init_hugepage()
+{
+    log $LINENO "init hugepage..."
+##############################################################
+#
+# TO DO:
+# verify the free pages carefully, but not with 1G pagesize
+#
+#############################################################
+
+    #for 1G hugepage
+
+    # check total hugepage number
+#    local nr_pagedir=/sys/devices/system/node/node0/hugepages/hugepages-1048576kB/nr_hugepages
+#    if [ ! -f ${nr_pagedir} ]
+#    then
+#        log $LINENO "system not support 1G huge pages, exit!"
+#        exit 1
+#    fi
+
+ #   local nr_huge_pages=`cat ${nr_pagedir}`
+ #   if [ ${nr_huge_pages} -lt 3 ]
+ #   then
+ #       log $LINENO "total huge pages is not set correctly, current ${nr_huge_pages}, exit!"
+ #       exit 1
+ #   fi
+
+    # check free hugepage number
+  #  local fr_pagedir=/sys/devices/system/node/node0/hugepages/hugepages-1048576kB/free_hugepages
+  #  if [ ! -f ${fr_pagedir} ]
+  #  then
+  #      log $LINENO "system not support 1G huge pages, exit!"
+  #      exit 1
+  #  fi
+
+   # local fr_huge_pages=`cat ${fr_pagedir}`
+   # if [ ${fr_huge_pages} -lt 3 ]
+   # then
+   #     log $LINENO "free huge pages is not set correctly, current ${fr_huge_pages}, exit!"
+   #     lsof $HUGE_DIR >> $LOG_FILE 2>/dev/null
+   #     exit 1
+   # fi
+
+   # mount | grep $HUGE_DIR >> $LOG_FILE 2>/dev/null
+   # if [ $? -eq 0 ] ; then
+   #     log $LINENO "$HUGE_DIR dir exist"
+   #     if test $(pgrep -f $1 | wc -l) -eq 0 ; then
+   #         log $LINENO "proccess $1 not exist and clean huge files"
+   #         if [ -n $HUGE_DIR ]&&[ -d $HUGE_DIR ]; then
+   #             rm -rf $HUGE_DIR/*
+   #         fi
+   #     else
+   #         log $LINENO "proccess $1 exist"
+   #     fi
+   # else
+   #     log $LINENO "$HUGE_DIR not exist and create"
+   #     sudo mkdir -p $HUGE_DIR
+        #directory right can't larger than 750
+
+   #     cur_user=`whoami`
+   #     if [ "root"  != "$cur_user" ]
+   #     then
+   #         non_root_uid=`id -u $cur_user`
+   #         non_root_gid=`id -g $cur_user`
+   #         sudo mount -t hugetlbfs -o pagesize=1G,uid=$non_root_uid,gid=$non_root_gid none $HUGE_DIR >> $LOG_FILE 2>/dev/null
+   #     else
+   #         mount -t hugetlbfs -o pagesize=1G none $HUGE_DIR >> $LOG_FILE 2>/dev/null
+   #     fi
+   # fi
+}
+
+recover_hugepage()
+{
+    log $LINENO "recover hugepage..."
+
+    if [ -n "$HUGE_DIR" ]&&[ -d "$HUGE_DIR" ]; then
+        rm -rf $HUGE_DIR/*
+    fi
+}
+
+init_network()
+{
+    log $LINENO "init network..."
+
+    recover_network
+
+    sudo modprobe uio
+
+    local script_path=$(cd "$(dirname "$0")"; pwd)
+    local is_igb_uio_loaded=`lsmod | grep igb_uio | wc -l`
+    if [ ${is_igb_uio_loaded} -eq 0 ]
+    then
+        log $LINENO "igb_uio is not installed. install it now."
+        sudo insmod $DPDK_MOD_PATH/igb_uio.ko
+    fi
+
+    # check if there is un-recognized nic
+    sudo $DPDK_TOOL_DIR/dpdk-devbind.py -s | grep -A32 "Other network" | \
+        grep unused | awk -F"'" '{print $1, $2}' | while read NIC_BFS BIND_DRIVER_NAME
+    do
+        local TYPE_CHECK_ixgbe=`echo $BIND_DRIVER_NAME |grep "82599ES 10-Gigabit SFI/SFP+ Network Connection"|wc -l`
+        local TYPE_CHECK_ixgbevf=`echo $BIND_DRIVER_NAME |grep "82599 Ethernet Controller Virtual Function"|wc -l`
+        local TYPE_CHECK_vmxnet3=`echo $BIND_DRIVER_NAME |grep "VMXNET3 Ethernet Controller"|wc -l`
+        local TYPE_CHECK_virtio=`echo $BIND_DRIVER_NAME |grep "Virtio network device"|wc -l`
+
+        if [ $TYPE_CHECK_ixgbe -gt 0 ]; then
+            sudo $DPDK_TOOL_DIR/dpdk-devbind.py --bind=ixgbe $NIC_BFS
+        elif [ $TYPE_CHECK_ixgbevf -gt 0 ]; then
+            sudo $DPDK_TOOL_DIR/dpdk-devbind.py --bind=ixgbevf $NIC_BFS
+        elif [ $TYPE_CHECK_vmxnet3 -gt 0 ]; then
+            sudo $DPDK_TOOL_DIR/dpdk-devbind.py --bind=vmxnet3 $NIC_BFS
+        elif [ $TYPE_CHECK_virtio -gt 0 ]; then
+            sudo $DPDK_TOOL_DIR/dpdk-devbind.py --bind=virtio-pci $NIC_BFS
+        fi
+
+    done
+}
+
+recover_network()
+{
+    log $LINENO "recover network..."
+
+    if [ -z "$DPDK_NIC_LIST_FILE" ]||[ ! -f "$DPDK_NIC_LIST_FILE" ]
+    then
+        log $LINENO "$DPDK_NIC_LIST_FILE is not exist. There is no nic used by nstack to unbind."
+    else
+        log $LINENO "The NIC(s) to unbind: "
+        cat $DPDK_NIC_LIST_FILE | awk -F" '|' | drv=| unused=" '{print $1,$4}' >> $LOG_FILE 2>/dev/null
+        cat $DPDK_NIC_LIST_FILE | awk -F" '|' | drv=| unused=" '{print $1,$4}' | while read NIC_BFS BIND_DRIVER_TYPE
+        do
+            sudo $DPDK_TOOL_DIR/dpdk-devbind.py --bind=$BIND_DRIVER_TYPE $NIC_BFS >> $LOG_FILE 2>/dev/null
+        done
+        rm $DPDK_NIC_LIST_FILE
+    fi
+
+    touch $DPDK_NIC_LIST_FILE
+    chmod 600 $DPDK_NIC_LIST_FILE
+}
+
+
+check_args_main()
+{
+if [ -z $HUGE_DIR ]||[ -z $MEM_SIZE ]||[ -z $RTP_CORE_MASK ]||[ -z $SLEEP_INTERVAL ]||\
+    [ -z $BIND_CPU ]||[ -z $START_TYPE ]
+then
+    log $LINENO "nStackMain Args is null"
+    return 1
+fi
+
+# check CORE_MASK -- see in get_core_mask()
+# check HUGE_DIR
+if [ -z $HUGE_DIR ]||[ ! -d $HUGE_DIR ]; then
+    log $LINENO "HUGE_DIR="$HUGE_DIR" is invalid"
+    return 1
+fi
+
+# check MEM_SIZE
+if [ $MEM_SIZE -lt 2048 ]||[ $MEM_SIZE -gt 32768 ]; then
+    log $LINENO "MEM_SIZE="$MEM_SIZE" is invalid"
+    return 1
+fi
+
+# check RTP_CORE_MASK
+if [ $RTP_CORE_MASK -lt 1 ]; then
+    log $LINENO "RTP_CORE_MASK="$RTP_CORE_MASK" is invalid"
+    return 1
+fi
+
+# check SLEEP_INTERVAL
+if [ $SLEEP_INTERVAL -lt 0 ]; then
+    log $LINENO "SLEEP_INTERVAL="$SLEEP_INTERVAL" is invalid"
+    return 1
+fi
+
+# check BIND_CPU
+if [ $BIND_CPU -lt 0 ]; then
+    log $LINENO "BIND_CPU="$BIND_CPU" is invalid"
+    return 1
+fi
+
+# check START_TYPE
+if [ $START_TYPE -lt 0 ]||[ $START_TYPE -gt 5 ]; then
+    log $LINENO "START_TYPE="$START_TYPE" is invalid"
+    return 1
+fi
+
+return 0
+}
+
+run_nStackMain()
+{
+
+    log $LINENO "run nstack main..."
+
+    sudo setcap CAP_IPC_OWNER,CAP_FOWNER,CAP_NET_ADMIN,CAP_IPC_LOCK,CAP_NET_RAW,CAP_SYS_RAWIO,CAP_SYS_ADMIN,CAP_CHOWN,CAP_SYS_NICE=eip ./bin/nStackMain 2>/dev/null
+
+    local script_path=$(cd "$(dirname "$0")"; pwd)
+    export NSTACK_CONFIG_PATH=${script_path}/../configure
+    export LD_LIBRARY_PATH=${script_path}/lib64/:$LD_LIBRARY_PATH
+    export NSTACK_LOG_ON=INF
+
+    log $LINENO "$env NSTACK_CONFIG_PATH=$NSTACK_CONFIG_PATH"
+    log $LINENO "$env DPDK_TOOL_DIR=$DPDK_TOOL_DIR"
+    log $LINENO "$env LD_LIBRARY_PATH=$LD_LIBRARY_PATH"
+    log $LINENO "$env DPDK_LIB_PATH=$DPDK_LIB_PATH"
+    log $LINENO "./nStackMain -c $1 -n 4 --huge-dir=$2 --proc-type=primary --file-prefix nStackMain -m $3 $7 $8 stack -c $4 -sleep $5 -bind_cpu $6"
+    check_file_size $DPDK_FILE
+    cd ..; cd bin/
+    ./nStackMain -c $1 -n 4 --huge-dir=$2 --proc-type=primary --file-prefix nStackMain -m $3 $7 $8 stack -c $4 -sleep $5 -bind_cpu $6 >> $DPDK_FILE &
+}
+
+
+stop_nStackProcess()
+{
+    log $LINENO "$1 exiting..."
+
+    local i=0
+
+    while [ ${i} -lt $2 ]
+    do
+        #pid=`ps aux | grep $1 |grep -v grep| awk '{print $2}'`
+        pid=`pidof $1`
+        if [ "x${pid}" != "x" ]
+        then
+            kill -9 $pid 2>/dev/null
+        else
+            break
+        fi
+        i=`expr ${i} + 1`
+        sleep 1
+    done
+}
+
+stop_nStackApps()
+{
+    log $LINENO "stop the apps that use the shared nstackhuge memory..."
+
+    app_pid=`lsof $HUGE_DIR | awk '{print $2}'`
+    if [ "x${app_pid}" != "x" ]
+    then
+        kill -9 ${app_pid} 2>/dev/null
+    fi
+}
+
+get_nstack_bin()
+{
+    local app=$1
+    master_pid=`pidof $app | head -n 1`
+    if [ "x${master_pid}" != "x" ];then
+       sudo readlink -f "/proc/${master_pid}/exe" | sed "s/$app$//g" 2>/dev/null
+    fi
+}
+
+
+
+get_abs_path()
+{
+    local input_path=$1
+    if [ -d "$input_path" -o -f "$input_path" ]; then
+        echo "$(dirname $(readlink -e $input_path))/$(basename $input_path)"
+        return 0
+    fi
+    echo $input_path
+    return 1
+}
+
+
+
+CONFIG_FILE="nStackConfig.json"
+VAR_FILE="nstack_var.sh"
+
+modify_nstack_log_path()
+{
+    if echo $1 |grep -Eq '^((/[a-zA-Z_]+[a-zA-Z0-9_-]+(/[a-zA-Z0-9_-]+)*/?)|/)$' > /dev/null
+    then
+        local parameter=$1
+    else
+        log $LINENO "the path is invalid, use the default config path!"
+        return
+    fi
+
+    if [ ! -d $1 ]; then
+        log $LINENO "the folder is not existed, use the default config!"
+        return
+    fi
+
+    if [ ! -w $1 ]; then
+        log $LINENO "the folder has no permission, use the default config!"
+        return
+    fi
+
+    local script_path=$(cd "$(dirname "$0")"; pwd)
+    local config_name=${script_path}/configure/$CONFIG_FILE
+
+    if [ ! -f $config_name ]; then
+        log $LINENO "$CONFIG_FILE no exit! use default config in code."
+        return
+    fi
+
+    sed -i 's#\("stackpool_log_path": "\).*#\1'"$1"'",#g' ${config_name}
+    sed -i 's#\("master_log_path": "\).*#\1'"$1"'",#g' ${config_name}
+    sed -i 's#\("nstack_log_path": "\).*#\1'"$1"'",#g' ${config_name}
+    sed -i 's#\("dpdk_log_path": "\).*#\1'"$1"'"#g' ${config_name}
+}
+
+modify_log_var()
+{
+    local script_path=$(cd "$(dirname "$0")"; pwd)
+    local config_name=${script_path}/configure/$CONFIG_FILE
+
+    if [ ! -f $config_name ]; then
+        log $LINENO "$CONFIG_FILE no exit! use default config in code."
+        return
+    fi
+
+    local running_log_path=`grep -Po '"stackpool_log_path": ".*?"' $config_name | sed -n -e 's/"//gp' | awk -F' ' '{print $2}'`
+    local master_log_path=`grep -Po '"master_log_path": ".*?"' $config_name | sed -n -e 's/"//gp' | awk -F' ' '{print $2}'`
+    local nstack_log_path=`grep -Po '"nstack_log_path": ".*?"' $config_name | sed -n -e 's/"//gp' | awk -F' ' '{print $2}'`
+    local dpdk_log_path=`grep -Po '"dpdk_log_path": ".*?"' $config_name | sed -n -e 's/"//gp' | awk -F' ' '{print $2}'`
+
+#modify the nstack_var.sh
+    local var_config_name=${script_path}/script/$VAR_FILE
+
+    if [ ! -f $var_config_name ]; then
+        log $LINENO "$VAR_FILE not exist , exit!"
+        exit 1
+    fi
+
+#check the path from json if it is OK.
+    if [ -n "$running_log_path" ]&&[ -w "$running_log_path" ]; then
+        sed -i "s:RUNNING_FILE_DIR=.*:RUNNING_FILE_DIR=${running_log_path}:g" $var_config_name
+    else
+        log $LINENO "stackpool_log_path:$running_log_path in $CONFIG_FILE is invalid, use the default config!"
+    fi
+
+    if [ -n "$master_log_path" ]&&[ -w "$master_log_path" ]; then
+        sed -i "s:MASTER_FILE_DIR=.*:MASTER_FILE_DIR=${master_log_path}:g" $var_config_name
+    else
+        log $LINENO "master_log_path:$master_log_path in $CONFIG_FILE is invalid, use the default config!"
+    fi
+
+    if [ -n "$nstack_log_path" ]&&[ -w "$nstack_log_path" ]; then
+        sed -i "s:LOG_FILE_DIR=.*:LOG_FILE_DIR=${nstack_log_path}:g" $var_config_name
+    else
+        log $LINENO "nstack_log_path:$nstack_log_path in $CONFIG_FILE is invalid, use the default config!"
+    fi
+
+    if [ -n "$dpdk_log_path" ]&&[ -w "$dpdk_log_path"  ]; then
+        sed -i "s:DPDK_FILE_DIR=.*:DPDK_FILE_DIR=${dpdk_log_path}:g" $var_config_name
+    else
+        log $LINENO "dpdk_log_path:$dpdk_log_path in $CONFIG_FILE is invalid, use the default config!"
+    fi
+}
+
+
+modify_local_ip_env()
+{
+
+#modify the nstack_var.sh
+    local var_config_name=${script_path}/script/$VAR_FILE
+
+    if [ ! -f $var_config_name ]; then
+        log $LINENO "$VAR_FILE not exist , exit!"
+        exit 1
+    fi
+
+    sed -i "s:VM_ID=.*:VM_ID=${nstack_alarm_local_ip}:g" $var_config_name 2>/dev/null
+}
+
+
+delete_pid_file()
+{
+        if [ -n "$PID_FILE" ]&&[ -f "$PID_FILE" ]
+        then
+            rm -rf  ${PID_FILE}
+        fi
+}
+
+save_pid_file()
+{
+	if [ ! -d ${PID_FILE_DIR} ];
+	then
+	    sudo mkdir -p ${PID_FILE_DIR}
+	    chmod 750 ${PID_FILE_DIR}
+	fi
+
+	if [ -f ${PID_FILE} ];
+	then
+	    cur_pid=`cat ${PID_FILE}`
+	    if [ ${cur_pid} != $1 ];
+	    then
+	        rm -rf  ${PID_FILE}
+	    else
+	        return
+	    fi
+	fi
+
+	touch ${PID_FILE}
+	echo $1 > $PID_FILE
+
+	chown paas:paas $PID_FILE
+	chmod 640 $PID_FILE
+}
+
+write_pid_to_file()
+{
+	retry=3
+	i=0
+	fail=1
+
+	while [ ${i} -lt ${retry} ]
+	do
+		PID=`pidof nStackMaster`
+		if [ ${PID} ]
+		then
+          fail=0
+          break
+		fi
+
+		i=`expr ${i} + 1`
+
+		sleep 1
+	done
+
+	if [ ${fail} -ne 0 ]
+	then
+		return 1
+	fi
+
+	if [ ! -d ${PID_FILE_DIR} ];
+	then
+	sudo mkdir -p ${PID_FILE_DIR}
+	chmod 750 ${PID_FILE_DIR}
+	fi
+
+	touch ${PID_FILE}
+	echo $PID > $PID_FILE
+	#check log file right
+	chown paas:paas $PID_FILE
+	chmod 640 $PID_FILE
+	return 0
+}
+
+
+
+install_config()
+{
+    # set nStackConfig values
+    if [ -n "$DEF_SOCK_NUM" ] ;then
+        sed -i "s/\"socket_num\":[ \t0-9]*,/\"socket_num\":$DEF_SOCK_NUM,/g" ./configure/nStackConfig.json
+    fi
+}
+
+copy_config()
+{
+    # $1 for src nStackServer path
+    # $2 for dst nStackServer path
+
+    # NOTE: set src socket_num value into dst path config file, this is for copying old configuration from old version to new version path when upgrading.
+    SRC_SOCK_NUM=`grep 'socket_num' $1/configure/nStackConfig.json | awk -F"," '{for (i=1;i<=NF;++i) print $i}' | awk 'gsub("\"socket_num\":","") {sub("^[ \t]*","");sub("[ \t]*$",""); print $0}'`
+    sed -i "s/\"socket_num\":[ \t0-9]*,/\"socket_num\":$SRC_SOCK_NUM,/g" $2/configure/nStackConfig.json
+}
-- 
cgit 1.2.3-korg