51 lines
1.2 KiB
Rust
51 lines
1.2 KiB
Rust
//! This account contains the current slot, epoch, and stakers_epoch
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//!
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use crate::account::Account;
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use crate::syscall;
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use bincode::serialized_size;
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crate::solana_name_id!(ID, "Sysca11Current11111111111111111111111111111");
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const ID: [u8; 32] = [
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6, 167, 211, 138, 69, 218, 14, 184, 34, 50, 188, 33, 201, 49, 63, 13, 15, 193, 33, 132, 208,
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238, 129, 224, 101, 67, 14, 11, 160, 0, 0, 0,
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];
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#[repr(C)]
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#[derive(Serialize, Deserialize, Debug, Default, PartialEq)]
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pub struct Current {
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slot: u64,
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block: u64,
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epoch: u64,
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stakers_epoch: u64,
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}
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impl Current {
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pub fn from(account: &Account) -> Option<Self> {
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account.deserialize_data().ok()
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}
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pub fn to(&self, account: &mut Account) -> Option<()> {
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account.serialize_data(self).ok()
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}
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pub fn size_of() -> usize {
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serialized_size(&Self::default()).unwrap() as usize
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}
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}
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pub fn create_account(lamports: u64) -> Account {
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Account::new(lamports, Current::size_of(), &syscall::id())
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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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#[test]
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fn test_create_account() {
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let account = create_account(1);
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let current = Current::from(&account).unwrap();
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assert_eq!(current, Current::default());
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}
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}
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