361 lines
13 KiB
Rust
361 lines
13 KiB
Rust
use std::collections::HashMap;
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use std::sync::{Arc, RwLock};
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use std::time::Duration;
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use anchor_client::Cluster;
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use clap::Parser;
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use client::{chain_data, keypair_from_cli, MangoClient, MangoGroupContext};
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use log::*;
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use mango_v4::state::{PerpMarketIndex, TokenIndex};
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use solana_client::rpc_client::RpcClient;
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use solana_sdk::commitment_config::CommitmentConfig;
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use solana_sdk::pubkey::Pubkey;
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use solana_sdk::signer::Signer;
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use std::collections::HashSet;
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pub mod account_shared_data;
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pub mod liquidate;
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pub mod metrics;
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pub mod snapshot_source;
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pub mod util;
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pub mod websocket_source;
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use crate::util::{is_mango_account, is_mango_bank, is_mint_info, is_perp_market};
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// jemalloc seems to be better at keeping the memory footprint reasonable over
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// longer periods of time
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#[global_allocator]
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static ALLOC: jemallocator::Jemalloc = jemallocator::Jemalloc;
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trait AnyhowWrap {
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type Value;
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fn map_err_anyhow(self) -> anyhow::Result<Self::Value>;
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}
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impl<T, E: std::fmt::Debug> AnyhowWrap for Result<T, E> {
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type Value = T;
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fn map_err_anyhow(self) -> anyhow::Result<Self::Value> {
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self.map_err(|err| anyhow::anyhow!("{:?}", err))
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}
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}
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#[derive(Parser, Debug)]
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#[clap()]
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struct CliDotenv {
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// When --dotenv <file> is passed, read the specified dotenv file before parsing args
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#[clap(long)]
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dotenv: std::path::PathBuf,
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remaining_args: Vec<std::ffi::OsString>,
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}
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#[derive(Parser)]
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#[clap()]
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struct Cli {
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#[clap(short, long, env)]
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rpc_url: String,
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#[clap(long, env)]
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group: Option<Pubkey>,
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// These exist only as a shorthand to make testing easier. Normal users would provide the group.
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#[clap(long, env)]
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group_from_admin_keypair: Option<String>,
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#[clap(long, env, default_value = "0")]
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group_from_admin_num: u32,
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// TODO: maybe store this in the group, so it's easy to start without providing it?
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#[clap(long, env)]
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pyth_program: Pubkey,
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// TODO: different serum markets could use different serum programs, should come from registered markets
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#[clap(long, env)]
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serum_program: Pubkey,
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#[clap(long, env)]
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liqor_owner: String,
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#[clap(long, env)]
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liqor_mango_account_name: String,
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#[clap(long, env, default_value = "300")]
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snapshot_interval_secs: u64,
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// how many getMultipleAccounts requests to send in parallel
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#[clap(long, env, default_value = "10")]
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parallel_rpc_requests: usize,
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// typically 100 is the max number for getMultipleAccounts
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#[clap(long, env, default_value = "100")]
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get_multiple_accounts_count: usize,
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}
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pub fn encode_address(addr: &Pubkey) -> String {
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bs58::encode(&addr.to_bytes()).into_string()
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}
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#[tokio::main]
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async fn main() -> anyhow::Result<()> {
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let args = if let Ok(cli_dotenv) = CliDotenv::try_parse() {
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dotenv::from_path(cli_dotenv.dotenv)?;
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cli_dotenv.remaining_args
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} else {
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dotenv::dotenv().ok();
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std::env::args_os().collect()
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};
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let cli = Cli::parse_from(args);
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let liqor_owner = keypair_from_cli(&cli.liqor_owner);
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let mango_group = if let Some(group) = cli.group {
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group
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} else if let Some(p) = cli.group_from_admin_keypair {
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let admin = keypair_from_cli(&p);
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MangoClient::group_for_admin(admin.pubkey(), cli.group_from_admin_num)
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} else {
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panic!("Must provide either group or group_from_admin_keypair");
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};
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let rpc_url = cli.rpc_url;
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let ws_url = rpc_url.replace("https", "wss");
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let rpc_timeout = Duration::from_secs(1);
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let cluster = Cluster::Custom(rpc_url.clone(), ws_url.clone());
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let commitment = CommitmentConfig::processed();
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let group_context = MangoGroupContext::new_from_rpc(mango_group, cluster.clone(), commitment)?;
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// TODO: this is all oracles, not just pyth!
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let mango_pyth_oracles = group_context
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.tokens
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.values()
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.map(|value| value.mint_info.oracle)
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.collect::<Vec<Pubkey>>();
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//
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// feed setup
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//
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// FUTURE: decouple feed setup and liquidator business logic
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// feed should send updates to a channel which liquidator can consume
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let mango_program = mango_v4::ID;
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solana_logger::setup_with_default("info");
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info!("startup");
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let metrics = metrics::start();
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// Sourcing account and slot data from solana via websockets
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// FUTURE: websocket feed should take which accounts to listen to as an input
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let (websocket_sender, websocket_receiver) =
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async_channel::unbounded::<websocket_source::Message>();
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websocket_source::start(
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websocket_source::Config {
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rpc_ws_url: ws_url.clone(),
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mango_program,
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serum_program: cli.serum_program,
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open_orders_authority: mango_group,
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},
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mango_pyth_oracles.clone(),
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websocket_sender,
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);
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let first_websocket_slot = websocket_source::get_next_create_bank_slot(
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websocket_receiver.clone(),
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Duration::from_secs(10),
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)
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.await?;
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// Getting solana account snapshots via jsonrpc
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let (snapshot_sender, snapshot_receiver) =
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async_channel::unbounded::<snapshot_source::AccountSnapshot>();
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// FUTURE: of what to fetch a snapshot - should probably take as an input
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snapshot_source::start(
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snapshot_source::Config {
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rpc_http_url: rpc_url.clone(),
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mango_program,
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mango_group,
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get_multiple_accounts_count: cli.get_multiple_accounts_count,
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parallel_rpc_requests: cli.parallel_rpc_requests,
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snapshot_interval: std::time::Duration::from_secs(cli.snapshot_interval_secs),
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min_slot: first_websocket_slot + 10,
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},
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mango_pyth_oracles,
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snapshot_sender,
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);
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// The representation of current on-chain account data
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let chain_data = Arc::new(RwLock::new(chain_data::ChainData::new()));
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// Reading accounts from chain_data
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let account_fetcher = Arc::new(chain_data::AccountFetcher {
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chain_data: chain_data.clone(),
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rpc: RpcClient::new_with_timeout_and_commitment(
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cluster.url().to_string(),
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rpc_timeout,
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commitment,
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),
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});
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start_chain_data_metrics(chain_data.clone(), &metrics);
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// Addresses of the MangoAccounts belonging to the mango program.
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// Needed to check health of them all when the cache updates.
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let mut mango_accounts = HashSet::<Pubkey>::new();
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let mut mint_infos = HashMap::<TokenIndex, Pubkey>::new();
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let mut oracles = HashSet::<Pubkey>::new();
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let mut perp_markets = HashMap::<PerpMarketIndex, Pubkey>::new();
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// List of accounts that are potentially liquidatable.
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//
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// Used to send a different message for newly liqudatable accounts and
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// accounts that are still liquidatable but not fresh anymore.
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//
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// This should actually be done per connected websocket client, and not globally.
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let _current_candidates = HashSet::<Pubkey>::new();
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// Is the first snapshot done? Only start checking account health when it is.
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let mut one_snapshot_done = false;
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let mut metric_websocket_queue_len = metrics.register_u64("websocket_queue_length".into());
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let mut metric_snapshot_queue_len = metrics.register_u64("snapshot_queue_length".into());
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let mut metric_mango_accounts = metrics.register_u64("mango_accouns".into());
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//
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// mango client setup
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//
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let mango_client = {
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Arc::new(MangoClient::new_detail(
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cluster,
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commitment,
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liqor_owner,
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&cli.liqor_mango_account_name,
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group_context,
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account_fetcher.clone(),
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)?)
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};
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info!("main loop");
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loop {
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tokio::select! {
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message = websocket_receiver.recv() => {
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metric_websocket_queue_len.set(websocket_receiver.len() as u64);
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let message = message.expect("channel not closed");
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// build a model of slots and accounts in `chain_data`
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websocket_source::update_chain_data(&mut chain_data.write().unwrap(), message.clone());
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// specific program logic using the mirrored data
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if let websocket_source::Message::Account(account_write) = message {
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if is_mango_account(&account_write.account, &mango_program, &mango_group).is_some() {
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// e.g. to render debug logs RUST_LOG="liquidator=debug"
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log::debug!("change to mango account {}...", &account_write.pubkey.to_string()[0..3]);
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// Track all MangoAccounts: we need to iterate over them later
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mango_accounts.insert(account_write.pubkey);
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metric_mango_accounts.set(mango_accounts.len() as u64);
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if !one_snapshot_done {
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continue;
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}
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if let Err(err) = liquidate::process_accounts(
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&mango_client,
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&account_fetcher,
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std::iter::once(&account_write.pubkey),
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) {
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warn!("could not process account {}: {:?}", account_write.pubkey, err);
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}
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}
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if is_mango_bank(&account_write.account, &mango_program, &mango_group).is_some() || oracles.contains(&account_write.pubkey) {
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if !one_snapshot_done {
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continue;
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}
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if is_mango_bank(&account_write.account, &mango_program, &mango_group).is_some() {
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log::debug!("change to bank {}", &account_write.pubkey);
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}
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if oracles.contains(&account_write.pubkey) {
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log::debug!("change to oracle {}", &account_write.pubkey);
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}
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// check health of all accounts
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//
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// TODO: This could be done asynchronously by calling
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// let accounts = chain_data.accounts_snapshot();
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// and then working with the snapshot of the data
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//
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// However, this currently takes like 50ms for me in release builds,
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// so optimizing much seems unnecessary.
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if let Err(err) = liquidate::process_accounts(
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&mango_client,
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&account_fetcher,
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mango_accounts.iter(),
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) {
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warn!("could not process accounts: {:?}", err);
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}
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}
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}
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},
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message = snapshot_receiver.recv() => {
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metric_snapshot_queue_len.set(snapshot_receiver.len() as u64);
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let message = message.expect("channel not closed");
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// Track all mango account pubkeys
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for update in message.accounts.iter() {
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if is_mango_account(&update.account, &mango_program, &mango_group).is_some() {
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mango_accounts.insert(update.pubkey);
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}
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if let Some(mint_info) = is_mint_info(&update.account, &mango_program, &mango_group) {
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mint_infos.insert(mint_info.token_index, update.pubkey);
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oracles.insert(mint_info.oracle);
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}
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if let Some(perp_market) = is_perp_market(&update.account, &mango_program, &mango_group) {
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perp_markets.insert(perp_market.perp_market_index, update.pubkey);
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}
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}
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metric_mango_accounts.set(mango_accounts.len() as u64);
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snapshot_source::update_chain_data(&mut chain_data.write().unwrap(), message);
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one_snapshot_done = true;
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// trigger a full health check
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if let Err(err) = liquidate::process_accounts(
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&mango_client,
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&account_fetcher,
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mango_accounts.iter(),
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) {
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warn!("could not process accounts: {:?}", err);
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}
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},
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}
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}
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}
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fn start_chain_data_metrics(chain: Arc<RwLock<chain_data::ChainData>>, metrics: &metrics::Metrics) {
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let mut interval = tokio::time::interval(std::time::Duration::from_secs(5));
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let mut metric_slots_count = metrics.register_u64("chain_data_slots_count".into());
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let mut metric_accounts_count = metrics.register_u64("chain_data_accounts_count".into());
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let mut metric_account_write_count =
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metrics.register_u64("chain_data_account_write_count".into());
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tokio::spawn(async move {
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loop {
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interval.tick().await;
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let chain_lock = chain.read().unwrap();
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metric_slots_count.set(chain_lock.slots_count() as u64);
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metric_accounts_count.set(chain_lock.accounts_count() as u64);
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metric_account_write_count.set(chain_lock.account_writes_count() as u64);
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}
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});
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}
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