dcounter

type API interface {
	// Ping pings the server and returns nil if everything is ok.
	Ping() error

	// Get returns the value of the counter,
	// a bool indicating if the cluster is stable.
	Get(id string) (float64, bool, error)

	// Inc increments or decrements (diff is negative) a counter.
	// The new value is returned.
	Inc(id string, diff float64) (float64, error)

	// Set sets the value of a counter.
	// Set is a heavy operation as it propagates using TCP.
	// Set returns once the value is propagated to all servers.
	// If set returns an error the change might have already been
	// propagated to some servers.
	// Set returns the old value.
	Set(id string, value float64) (float64, error)

	// List returns a map with all counters.
	List() (map[string]float64, error)

	// Join discards all data in the server and joines a cluster.
	Join(hosts []string) error

	// Save returns a json string containing the data for this server.
	// The json can be saved to a file and loaded using --load when starting a server.
	Save() (string, error)

	// Members returns a list of members of the current cluster.
	Members() ([]Member, error)

	// Close closes any open connection.
	// After close any function will just reopen the connection.
	Close() error
}

type Member struct {
	Name string
	Addr net.IP
}