solana_stake_interface/
config.rs

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//! Config for staking.
//!
//! It carries variables that the stake program cares about.

#[deprecated(
    since = "1.16.7",
    note = "Please use `crate::state::{DEFAULT_SLASH_PENALTY, DEFAULT_WARMUP_COOLDOWN_RATE}` instead"
)]
pub use super::state::{DEFAULT_SLASH_PENALTY, DEFAULT_WARMUP_COOLDOWN_RATE};
use solana_pubkey::declare_deprecated_id;

// stake config ID
declare_deprecated_id!("StakeConfig11111111111111111111111111111111");

#[deprecated(
    since = "1.16.7",
    note = "Please use `crate::state::warmup_cooldown_rate()` instead"
)]
#[cfg_attr(
    feature = "serde",
    derive(serde_derive::Deserialize, serde_derive::Serialize)
)]
#[derive(Debug, PartialEq, Clone, Copy)]
pub struct Config {
    /// how much stake we can activate/deactivate per-epoch as a fraction of currently effective stake
    pub warmup_cooldown_rate: f64,
    /// percentage of stake lost when slash, expressed as a portion of u8::MAX
    pub slash_penalty: u8,
}

impl Default for Config {
    fn default() -> Self {
        Self {
            warmup_cooldown_rate: DEFAULT_WARMUP_COOLDOWN_RATE,
            slash_penalty: DEFAULT_SLASH_PENALTY,
        }
    }
}