90bedd7e06
* SDK: Split new `FeeRateGovernor` out of `FeeCalculator` Leaving `FeeCalculator` to *only* calculate transaction fees * Replace `FeeCalculator` with `FeeRateGovernor` as appropriate * Expose recent `FeeRateGovernor` to clients * Move `burn()` back into `FeeCalculator` Appease BPF tests * Revert "Move `burn()` back into `FeeCalculator`" This reverts commit f3035624307196722b62ff8b74c12cfcc13b1941. * Adjust BPF `Fee` sysvar test to reflect removal of `burn()` from `FeeCalculator` * Make `FeeRateGovernor`'s `lamports_per_signature` private * rebase artifacts * fmt * Drop 'Recent' * Drop _with_commitment variant * Use a more portable integer for `target_signatures_per_slot` * Add docs for `getReeRateCalculator` JSON RPC method * Don't return `lamports_per_signature` in `getFeeRateGovernor` JSONRPC reply
71 lines
2.1 KiB
Rust
71 lines
2.1 KiB
Rust
//! @brief Example Rust-based BPF program that tests sysval use
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extern crate solana_sdk;
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use solana_sdk::{
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account_info::AccountInfo,
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clock::{get_segment_from_slot, DEFAULT_SLOTS_PER_EPOCH, DEFAULT_SLOTS_PER_SEGMENT},
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entrypoint,
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entrypoint::ProgramResult,
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info,
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log::Log,
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pubkey::Pubkey,
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rent,
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sysvar::{
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self, clock::Clock, fees::Fees, rent::Rent, rewards::Rewards, slot_hashes::SlotHashes,
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stake_history::StakeHistory, Sysvar,
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},
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};
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entrypoint!(process_instruction);
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fn process_instruction(
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_program_id: &Pubkey,
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accounts: &[AccountInfo],
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_instruction_data: &[u8],
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) -> ProgramResult {
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// Clock
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info!("Clock identifier:");
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sysvar::clock::id().log();
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let clock = Clock::from_account_info(&accounts[2]).expect("clock");
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assert_eq!(clock.slot, DEFAULT_SLOTS_PER_EPOCH + 1);
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assert_eq!(
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clock.segment,
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get_segment_from_slot(clock.slot, DEFAULT_SLOTS_PER_SEGMENT)
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);
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// Fees
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info!("Fees identifier:");
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sysvar::fees::id().log();
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let fees = Fees::from_account_info(&accounts[3]).expect("fees");
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let fee_calculator = fees.fee_calculator;
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assert_eq!(fee_calculator.lamports_per_signature, 0);
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// Rewards
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info!("Rewards identifier:");
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sysvar::rewards::id().log();
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let _rewards = Rewards::from_account_info(&accounts[4]).expect("rewards");
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// Slot Hashes
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info!("SlotHashes identifier:");
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sysvar::slot_hashes::id().log();
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let slot_hashes = SlotHashes::from_account_info(&accounts[5]).expect("slot_hashes");
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assert!(slot_hashes.len() >= 1);
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// Stake History
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info!("StakeHistory identifier:");
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sysvar::stake_history::id().log();
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let stake_history = StakeHistory::from_account_info(&accounts[6]).expect("stake_history");
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assert!(stake_history.len() >= 1);
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let rent = Rent::from_account_info(&accounts[7]).unwrap();
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assert_eq!(
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rent.due(
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rent::DEFAULT_LAMPORTS_PER_BYTE_YEAR * rent::DEFAULT_EXEMPTION_THRESHOLD as u64,
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1,
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1.0
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),
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(0, true)
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);
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Ok(())
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}
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