rpcserver

var (
	// ErrInProgress must be returned when concurrent access is requested.
	ErrInProgress = status.Errorf(codes.Aborted, "operation in progress")

	// ErrBadCookie can be returned to let clients know their session has
	// already expired.
	ErrBadCookie = status.Errorf(codes.InvalidArgument, "bad cookie")

	// ErrTempFailure can be returned to indicate a temporary nature of an
	// error, prompting the client to try again later.
	ErrTempFailure = status.Errorf(codes.Internal, "temporary failure")

	// ErrBadAddress must be returned to indicate that client has supplied
	// an invalid address.
	ErrBadAddress = status.Errorf(codes.InvalidArgument, "bad address")

	// ErrEscrowFailed must be returned to indicate that the resource is
	// unavailable.
	ErrEscrowFailed = status.Errorf(codes.Unavailable, "escrow failed")

	// ErrBadRequest is a vague error message that must be returned during
	// the exchange to obscure which step has actually failed.
	ErrBadRequest = status.Errorf(codes.FailedPrecondition, "bad request")
)