PHP应用：PHP通过插入mysql数据来实现多机互锁实例

function get_lock()
{
    local dataId="${1}"
    local dataDate="${2}"

    local sql="insert intot_trans_lock
    (dataId, dataDate) values('${dataId}', '${dataDate}');"
    echo ${sql} | ${DB_PUBLIC}PHP应用

    return $?
}PHP应用

function free_lock()
{
    local dataId="${1}"
    local dataDate="${2}"
    local status="${3}"

    local sql="delete from t_trans_lock
    where dataId='${dataId}' and dataDate='${dataDate}';"
    echo ${sql} | ${DB_PUBLIC}
    if [ $? -ne 0 ]; then
        write_log ${dataId} "free lock failed"
    fi
    return ${status}
}PHP应用