shardmaster

type Clerk struct {
	// contains filtered or unexported fields
}

type Config struct {
	Num    int              // config number
	Shards [NShards]int     // shard -> gid
	Groups map[int][]string // gid -> servers[]
}

type Err string

type JoinArgs struct {
	Servers map[int][]string // new GID -> servers mappings

	Cid int64
	Seq int64
}

type JoinReply struct {
	WrongLeader bool
	Err         Err
}

type LeaveArgs struct {
	GIDs []int

	Cid int64
	Seq int64
}

type LeaveReply struct {
	WrongLeader bool
	Err         Err
}

type MoveArgs struct {
	Shard int
	GID   int

	Cid int64
	Seq int64
}

type MoveReply struct {
	WrongLeader bool
	Err         Err
}

type Op struct {
	Cid     int64
	Seq     int64
	Action  string
	Servers map[int][]string
	GIDs    []int
	Shard   int
	GID     int
	Num     int
}

type OpReply struct {
	Cid         int64
	Seq         int64
	Conf        Config
	WrongLeader bool
	Err         Err
}

type QueryArgs struct {
	Num int // desired config number

	Cid int64
	Seq int64
}

type QueryReply struct {
	WrongLeader bool
	Err         Err
	Config      Config
}

type ShardMaster struct {
	// contains filtered or unexported fields
}