#!/bin/bash
 
#該函數(shù)檢查關(guān)鍵進(jìn)程的狀態(tài)，最終返回進(jìn)程的個數(shù)。
checkprocess()
{
#       echo "checkprocess...$1"
        if [ "$1" = "" ];
        then
                return 1
        fi
        process_num=`ps -ef|grep "$1" |grep -v "grep" |wc -l`
#       echo "checkprocess num=$process_num"
        return $process_num
}
#進(jìn)程如有退出，則記錄相關(guān)的信息，并做相關(guān)的處理
recordinfo()
{
#       echo "check $1"
        if [ "$1" = "" ];
        then
                return
        fi
#打印進(jìn)程退出的時間
        date "+++++++++++++++++++ +%Y-%m-%d %H:%M:%S '$1' exit! +++++++++++++++++++"
#重新拉起這個進(jìn)程
        "$1" &
        echo "restart $1"
}
 
#檢查進(jìn)程的狀態(tài)
check()
{
        echo "####check $1"
        if [ "$1" = "" ];
        then
                return
        fi
        checkprocess "$1"
        check_result=$?
#如果該進(jìn)程的個數(shù)為0，則說明該進(jìn)程已經(jīng)退出
        if [ $check_result -eq 0 ];
        then
                recordinfo "$1"
#               exit
        fi
}
#循環(huán)檢測
while [ 1 ] ; do
        #關(guān)鍵進(jìn)程列表，多個進(jìn)程以逗號分隔，這里以兩個進(jìn)程為例子。
        process_name="./test1,./test2"
        OLD_IFS="$IFS"
        IFS=","
        arr=($process_name)
        IFS="$OLD_IFS"
 
        for s in ${arr[@]}
        do
          check "$s"
        done
        sleep 3
#       echo "check loop..."
done

void main()
{
        while(1) {
                sleep(3);
        }
}