rdd.slaveholder v0.0.8

rdd.slaveholder

用来记录工作的小库。

基本API：

export interface main{
    jobCount :number;
    log :boolean;
    constructor:(jobCount :number,afterJobs :()=>{});
    afterJobs :()=>{};
    oneDown(msg :string):void;
}

1. oneDown will make jobCount--.
2. when jobCount == 0 then afterJobs will be execed.