| package raftselector |
| |
| import ( |
| "errors" |
| |
| "golang.org/x/net/context" |
| |
| "google.golang.org/grpc" |
| ) |
| |
| // ConnProvider is basic interface for connecting API package(raft proxy in particular) |
| // to manager/state/raft package without import cycles. It provides only one |
| // method for obtaining connection to leader. |
| type ConnProvider interface { |
| LeaderConn(ctx context.Context) (*grpc.ClientConn, error) |
| } |
| |
| // ErrIsLeader is returned from LeaderConn method when current machine is leader. |
| // It's just shim between packages to avoid import cycles. |
| var ErrIsLeader = errors.New("current node is leader") |
