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/// Options for HyParView [Node](./struct.Node.html).
#[derive(Debug, Clone)]
pub struct NodeOptions {
/// Maximum number of nodes in the active view.
pub max_active_view_size: u8,
/// Maximum number of nodes in the passive view.
pub max_passive_view_size: u8,
/// Protocol parameter that is called `ka` in the [paper].
///
/// [paper]: http://asc.di.fct.unl.pt/~jleitao/pdf/dsn07-leitao.pdf
pub shuffle_active_view_size: u8,
/// Protocol parameter that is called `kp` in the [paper].
///
/// [paper]: http://asc.di.fct.unl.pt/~jleitao/pdf/dsn07-leitao.pdf
pub shuffle_passive_view_size: u8,
/// Protocol parameter that is called `ARWL` in the [paper].
///
/// This is the initial TTL value for `ForwardJoin` and `Shuffle` messages.
///
/// [paper]: http://asc.di.fct.unl.pt/~jleitao/pdf/dsn07-leitao.pdf
pub active_random_walk_len: u8,
/// Protocol parameter that is called `PRWL` in the [paper].
///
/// If TTL is equal to the value,
///
/// [paper]: http://asc.di.fct.unl.pt/~jleitao/pdf/dsn07-leitao.pdf
pub passive_random_walk_len: u8,
}
impl NodeOptions {
/// The default value of `max_active_view_size` field.
pub const DEFAULT_MAX_ACTIVE_VIEW_SIZE: u8 = 4;
/// The default value of `max_passive_view_size` field.
pub const DEFAULT_MAX_PASSIVE_VIEW_SIZE: u8 = 24;
/// The default value of `shuffle_active_view_size` field.
pub const DEFAULT_SHUFFLE_ACTIVE_VIEW_SIZE: u8 = 2;
/// The default value of `shuffle_passive_view_size` field.
pub const DEFAULT_SHUFFLE_PASSIVE_VIEW_SIZE: u8 = 2;
/// The default value of `active_random_walk_len` field.
pub const DEFAULT_ACTIVE_RANDOM_WALK_LEN: u8 = 5;
/// The default value of `passive_random_walk_len` field.
pub const DEFAULT_PASSIVE_RANDOM_WALK_LEN: u8 = 2;
}
impl Default for NodeOptions {
fn default() -> Self {
NodeOptions {
max_active_view_size: Self::DEFAULT_MAX_ACTIVE_VIEW_SIZE,
max_passive_view_size: Self::DEFAULT_MAX_PASSIVE_VIEW_SIZE,
shuffle_active_view_size: Self::DEFAULT_SHUFFLE_ACTIVE_VIEW_SIZE,
shuffle_passive_view_size: Self::DEFAULT_SHUFFLE_PASSIVE_VIEW_SIZE,
active_random_walk_len: Self::DEFAULT_ACTIVE_RANDOM_WALK_LEN,
passive_random_walk_len: Self::DEFAULT_PASSIVE_RANDOM_WALK_LEN,
}
}
}