mr

type ByKey []KeyValue

type ExampleArgs struct {
	X int
}

type ExampleReply struct {
	Y int
}

type KeyValue struct {
	Key   string
	Value string
}

type Master struct {
	TaskQueue     chan *Task          // 等待执行的task
	TaskMeta      map[int]*MasterTask // 当前所有task的信息
	MasterPhase   State               // Master的阶段
	NReduce       int
	InputFiles    []string
	Intermediates [][]string // Map任务产生的R个中间文件的信息
}

type MasterTask struct {
	TaskStatus    MasterTaskStatus
	StartTime     time.Time
	TaskReference *Task
}

type MasterTaskStatus int

type State int

type Task struct {
	Input         string
	TaskState     State
	NReducer      int
	TaskNumber    int
	Intermediates []string
	Output        string
}