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Remove lamports-per-byte-year and lamports-per-epoch from rent as all… (#29731) 

Remove lamports-per-byte-year and lamports-per-epoch from rent as all accounts must be rent exempt
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Michael 2023-01-24 08:04:54 +02:00 committed by GitHub
parent a72c2ec459
commit d53f02ec51
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1 changed files with 1 additions and 17 deletions
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18
cli/src/cluster_query.rs
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@ -59,7 +59,6 @@ use {
slot_history::SlotHistory,
stake_history::{self},
},
timing,
transaction::Transaction,
},
solana_transaction_status::UiTransactionEncoding,
@ -453,7 +452,7 @@ impl ClusterQuerySubCommands for App<'_, '_> {
)
.subcommand(
SubCommand::with_name("rent")
.about("Calculate per-epoch and rent-exempt-minimum values for a given account data field length.")
.about("Calculate rent-exempt-minimum value for a given account data field length.")
.arg(
Arg::with_name("data_length")
.index(1)
@ -2088,8 +2087,6 @@ pub fn process_transaction_history(
#[derive(Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
struct CliRentCalculation {
pub lamports_per_byte_year: u64,
pub lamports_per_epoch: u64,
pub rent_exempt_minimum_lamports: u64,
#[serde(skip)]
pub use_lamports_unit: bool,
@ -2103,11 +2100,7 @@ impl CliRentCalculation {
impl fmt::Display for CliRentCalculation {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let per_byte_year = self.build_balance_message(self.lamports_per_byte_year);
let per_epoch = self.build_balance_message(self.lamports_per_epoch);
let exempt_minimum = self.build_balance_message(self.rent_exempt_minimum_lamports);
writeln_name_value(f, "Rent per byte-year:", &per_byte_year)?;
writeln_name_value(f, "Rent per epoch:", &per_epoch)?;
writeln_name_value(f, "Rent-exempt minimum:", &exempt_minimum)
}
}
@ -2162,19 +2155,10 @@ pub fn process_calculate_rent(
data_length: usize,
use_lamports_unit: bool,
) -> ProcessResult {
let epoch_schedule = rpc_client.get_epoch_schedule()?;
let rent_account = rpc_client.get_account(&sysvar::rent::id())?;
let rent: Rent = rent_account.deserialize_data()?;
let rent_exempt_minimum_lamports = rent.minimum_balance(data_length);
let seconds_per_tick = Duration::from_secs_f64(1.0 / clock::DEFAULT_TICKS_PER_SECOND as f64);
let slots_per_year =
timing::years_as_slots(1.0, &seconds_per_tick, clock::DEFAULT_TICKS_PER_SLOT);
let slots_per_epoch = epoch_schedule.slots_per_epoch as f64;
let years_per_epoch = slots_per_epoch / slots_per_year;
let lamports_per_epoch = rent.due(0, data_length, years_per_epoch).lamports();
let cli_rent_calculation = CliRentCalculation {
lamports_per_byte_year: rent.lamports_per_byte_year,
lamports_per_epoch,
rent_exempt_minimum_lamports,
use_lamports_unit,
};