41 lines
1.4 KiB
Rust
Executable File
41 lines
1.4 KiB
Rust
Executable File
use solana_hash::Hash;
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use solana_sdk::{instruction::Instruction, pubkey::Pubkey, signature::Keypair, signer::Signer};
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use solana_system_interface::instruction::advance_nonce_account;
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use crate::common::nonce_cache::DurableNonceInfo;
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/// Add nonce advance instruction to the instruction set
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///
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/// Nonce functionality is only used when nonce_pubkey is provided
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/// Returns error if nonce is locked, already used, or not ready
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/// On success, locks and marks nonce as used
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pub fn add_nonce_instruction(
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instructions: &mut Vec<Instruction>,
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payer: &Keypair,
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// nonce_account: Option<Pubkey>,
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// current_nonce: Option<Hash>,
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durable_nonce: Option<DurableNonceInfo>,
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) -> Result<(), anyhow::Error> {
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if let Some(durable_nonce) = durable_nonce {
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let nonce_advance_ix = advance_nonce_account(&durable_nonce.nonce_account.unwrap(), &payer.pubkey());
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instructions.push(nonce_advance_ix);
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}
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Ok(())
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}
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/// Get blockhash for transaction
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/// If nonce account is used, return blockhash from nonce, otherwise return the provided recent_blockhash
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pub fn get_transaction_blockhash(
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recent_blockhash: Option<Hash>,
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durable_nonce: Option<DurableNonceInfo>,
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// nonce_account: Option<Pubkey>,
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// current_nonce: Option<Hash>,
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) -> Hash {
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if let Some(durable_nonce) = durable_nonce {
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durable_nonce.current_nonce.unwrap()
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} else {
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recent_blockhash.unwrap()
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}
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}
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