63 lines
1.9 KiB
Rust
63 lines
1.9 KiB
Rust
//! config for staking
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//! carries variables that the stake program cares about
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use bincode::deserialize;
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use solana_config_program::{create_config_account, get_config_data};
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use solana_sdk::{
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account::{AccountSharedData, ReadableAccount, WritableAccount},
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genesis_config::GenesisConfig,
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instruction::InstructionError,
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keyed_account::KeyedAccount,
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stake::config::{self, Config},
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};
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#[deprecated(
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since = "1.8.0",
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note = "Please use `solana_sdk::stake::config` or `solana_program::stake::config` instead"
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)]
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pub use solana_sdk::stake::config::*;
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pub fn from<T: ReadableAccount>(account: &T) -> Option<Config> {
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get_config_data(account.data())
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.ok()
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.and_then(|data| deserialize(data).ok())
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}
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pub fn from_keyed_account(account: &KeyedAccount) -> Result<Config, InstructionError> {
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if !config::check_id(account.unsigned_key()) {
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return Err(InstructionError::InvalidArgument);
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}
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from(&*account.try_account_ref()?).ok_or(InstructionError::InvalidArgument)
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}
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pub fn create_account(lamports: u64, config: &Config) -> AccountSharedData {
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create_config_account(vec![], config, lamports)
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}
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pub fn add_genesis_account(genesis_config: &mut GenesisConfig) -> u64 {
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let mut account = create_config_account(vec![], &Config::default(), 0);
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let lamports = genesis_config.rent.minimum_balance(account.data().len());
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account.set_lamports(lamports.max(1));
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genesis_config.add_account(config::id(), account);
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lamports
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use solana_sdk::pubkey::Pubkey;
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use std::cell::RefCell;
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#[test]
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fn test() {
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let account = RefCell::new(create_account(0, &Config::default()));
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assert_eq!(from(&account.borrow()), Some(Config::default()));
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assert_eq!(
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from_keyed_account(&KeyedAccount::new(&Pubkey::default(), false, &account)),
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Err(InstructionError::InvalidArgument)
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);
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}
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}
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