68 lines
1.9 KiB
Rust
68 lines
1.9 KiB
Rust
#![allow(clippy::arithmetic_side_effects)]
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pub mod config_instruction;
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pub mod config_processor;
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pub mod date_instruction;
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pub use solana_sdk::config::program::id;
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#[allow(deprecated)]
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use solana_sdk::stake::config::Config as StakeConfig;
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use {
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bincode::{deserialize, serialize, serialized_size},
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serde_derive::{Deserialize, Serialize},
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solana_sdk::{
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account::{Account, AccountSharedData},
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pubkey::Pubkey,
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short_vec,
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},
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};
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pub trait ConfigState: serde::Serialize + Default {
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/// Maximum space that the serialized representation will require
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fn max_space() -> u64;
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}
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// TODO move ConfigState into `solana_program` to implement trait locally
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#[allow(deprecated)]
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impl ConfigState for StakeConfig {
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fn max_space() -> u64 {
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serialized_size(&StakeConfig::default()).unwrap()
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}
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}
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/// A collection of keys to be stored in Config account data.
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#[derive(Debug, Default, Deserialize, Serialize)]
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pub struct ConfigKeys {
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// Each key tuple comprises a unique `Pubkey` identifier,
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// and `bool` whether that key is a signer of the data
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#[serde(with = "short_vec")]
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pub keys: Vec<(Pubkey, bool)>,
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}
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impl ConfigKeys {
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pub fn serialized_size(keys: Vec<(Pubkey, bool)>) -> u64 {
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serialized_size(&ConfigKeys { keys }).unwrap()
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}
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}
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pub fn get_config_data(bytes: &[u8]) -> Result<&[u8], bincode::Error> {
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deserialize::<ConfigKeys>(bytes)
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.and_then(|keys| serialized_size(&keys))
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.map(|offset| &bytes[offset as usize..])
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}
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// utility for pre-made Accounts
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pub fn create_config_account<T: ConfigState>(
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keys: Vec<(Pubkey, bool)>,
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config_data: &T,
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lamports: u64,
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) -> AccountSharedData {
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let mut data = serialize(&ConfigKeys { keys }).unwrap();
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data.extend_from_slice(&serialize(config_data).unwrap());
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AccountSharedData::from(Account {
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lamports,
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data,
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owner: id(),
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..Account::default()
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})
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}
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