0xfnzero
4b451af5ff
- PumpFunParams::from_trade/from_dev_trade: add mayhem_mode Option; infer Mayhem via is_mayhem_fee_recipient when None (fixes fee recipient / NotAuthorized 6000 when AMM protocol fee pubkey is used). - Add is_mayhem_fee_recipient and is_amm_fee_recipient helpers in pumpfun utils. - Bump solana-* crates to 3.1.12; align tonic/prost; use solana-message for AddressLookupTableAccount; add solana-system-interface 3.0. - Update examples and latency script for new PumpFunParams signature. - SWQoS and transaction builder adjustments for dependency changes. Made-with: Cursor
42 lines
1.5 KiB
Rust
Executable File
42 lines
1.5 KiB
Rust
Executable File
use crate::common::SolanaRpcClient;
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use solana_hash::Hash;
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use solana_sdk::pubkey::Pubkey;
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use tracing::error;
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/// DurableNonceInfo structure to store durable nonce-related information
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#[derive(Clone)]
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pub struct DurableNonceInfo {
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/// Nonce account address
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pub nonce_account: Option<Pubkey>,
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/// Current nonce value
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pub current_nonce: Option<Hash>,
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}
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/// Fetch nonce information using RPC
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pub async fn fetch_nonce_info(
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rpc: &SolanaRpcClient,
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nonce_account: Pubkey,
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) -> Option<DurableNonceInfo> {
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match rpc.get_account(&nonce_account).await {
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Ok(account) => {
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// Parse nonce account manually: first 4 bytes is version, then 4 bytes authority type
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// For initialized nonce: version=0, authority_type=0, then authority (32 bytes), then blockhash (32 bytes), then fee_calculator
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if account.data.len() >= 80 {
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// Skip version (4) + authority_type (4) + authority (32) = 40 bytes
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// Then blockhash is at offset 40
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let blockhash_bytes: [u8; 32] = account.data[40..72].try_into().ok()?;
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return Some(DurableNonceInfo {
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nonce_account: Some(nonce_account),
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current_nonce: Some(Hash::from(blockhash_bytes)),
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});
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} else {
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error!("Nonce account data too short");
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}
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}
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Err(e) => {
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error!("Failed to get nonce account information: {:?}", e);
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}
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}
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None
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}
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