Files
sol-trade-sdk/src/trading/common/nonce_manager.rs
T

66 lines
2.2 KiB
Rust
Executable File

use anyhow::anyhow;
use solana_hash::Hash;
use solana_sdk::{instruction::Instruction, signature::Keypair, signer::Signer};
use solana_system_interface::instruction::advance_nonce_account;
use crate::common::nonce_cache::NonceCache;
/// 添加nonce消费指令到指令集合中
///
/// 只有提供了nonce_pubkey时才使用nonce功能
/// 如果nonce被锁定、已使用或未准备好,将返回错误
/// 成功时会锁定并标记nonce为已使用
pub fn add_nonce_instruction(
instructions: &mut Vec<Instruction>,
payer: &Keypair,
) -> Result<(), anyhow::Error> {
let nonce_cache = NonceCache::get_instance();
let nonce_info = nonce_cache.get_nonce_info();
// 只检查nonce_account是否存在
if let Some(nonce_pubkey) = nonce_info.nonce_account {
// 暂不加锁
// if nonce_info.lock {
// return Err(anyhow!("Nonce is locked"));
// }
if nonce_info.used {
return Err(anyhow!("Nonce is used"));
}
if nonce_info.current_nonce == Hash::default() {
return Err(anyhow!("Nonce is not ready"));
}
// if nonce_info.next_buy_time == 0 || chrono::Utc::now().timestamp() < nonce_info.next_buy_time {
// return Err(anyhow!("Nonce is not ready"));
// }
// 加锁 - 暂不加锁
// nonce_cache.lock();
// 创建Solana系统nonce推进指令 - 使用系统程序ID
let nonce_advance_ix = advance_nonce_account(&nonce_pubkey, &payer.pubkey());
instructions.push(nonce_advance_ix);
}
Ok(())
}
/// 获取用于交易的blockhash
/// 如果使用了nonce账户,返回nonce中的blockhash,否则返回传入的recent_blockhash
pub fn get_transaction_blockhash(recent_blockhash: Hash) -> Hash {
let nonce_cache = NonceCache::get_instance();
let nonce_info = nonce_cache.get_nonce_info();
if nonce_info.nonce_account.is_some() {
nonce_info.current_nonce
} else {
recent_blockhash
}
}
/// 检查是否使用nonce账户
pub fn is_using_nonce() -> bool {
let nonce_cache = NonceCache::get_instance();
let nonce_info = nonce_cache.get_nonce_info();
nonce_info.nonce_account.is_some()
}