Initial refactor to add tokio::main and be fully async
[ldk-sample] / src / bitcoind_client.rs
index f18cd407622eb2c2a1f54c5a9d11fe0b4b5ce5f8..48d54f822e783bbb9dabfc0888d581c593f960df 100644 (file)
 use crate::convert::{BlockchainInfo, FeeResponse, FundedTx, NewAddress, RawTx, SignedTx};
 use base64;
+use bitcoin::blockdata::block::Block;
 use bitcoin::blockdata::transaction::Transaction;
 use bitcoin::consensus::encode;
+use bitcoin::hash_types::BlockHash;
 use bitcoin::util::address::Address;
 use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator};
 use lightning_block_sync::http::HttpEndpoint;
 use lightning_block_sync::rpc::RpcClient;
+use lightning_block_sync::{AsyncBlockSourceResult, BlockHeaderData, BlockSource};
 use serde_json;
 use std::collections::HashMap;
 use std::str::FromStr;
-use std::sync::Mutex;
-use tokio::runtime::{Handle, Runtime};
+use std::sync::atomic::{AtomicU32, Ordering};
+use std::sync::Arc;
+use std::time::Duration;
+use tokio::sync::Mutex;
 
 pub struct BitcoindClient {
-       bitcoind_rpc_client: Mutex<RpcClient>,
+       bitcoind_rpc_client: Arc<Mutex<RpcClient>>,
        host: String,
        port: u16,
        rpc_user: String,
        rpc_password: String,
-       runtime: Mutex<Runtime>,
+       fees: Arc<HashMap<Target, AtomicU32>>,
+}
+
+#[derive(Clone, Eq, Hash, PartialEq)]
+pub enum Target {
+       Background,
+       Normal,
+       HighPriority,
+}
+
+impl BlockSource for &BitcoindClient {
+       fn get_header<'a>(
+               &'a mut self, header_hash: &'a BlockHash, height_hint: Option<u32>,
+       ) -> AsyncBlockSourceResult<'a, BlockHeaderData> {
+               Box::pin(async move {
+                       let mut rpc = self.bitcoind_rpc_client.lock().await;
+                       rpc.get_header(header_hash, height_hint).await
+               })
+       }
+
+       fn get_block<'a>(
+               &'a mut self, header_hash: &'a BlockHash,
+       ) -> AsyncBlockSourceResult<'a, Block> {
+               Box::pin(async move {
+                       let mut rpc = self.bitcoind_rpc_client.lock().await;
+                       rpc.get_block(header_hash).await
+               })
+       }
+
+       fn get_best_block<'a>(&'a mut self) -> AsyncBlockSourceResult<(BlockHash, Option<u32>)> {
+               Box::pin(async move {
+                       let mut rpc = self.bitcoind_rpc_client.lock().await;
+                       rpc.get_best_block().await
+               })
+       }
 }
 
 impl BitcoindClient {
-       pub fn new(
+       pub async fn new(
                host: String, port: u16, rpc_user: String, rpc_password: String,
        ) -> std::io::Result<Self> {
                let http_endpoint = HttpEndpoint::for_host(host.clone()).with_port(port);
                let rpc_credentials =
                        base64::encode(format!("{}:{}", rpc_user.clone(), rpc_password.clone()));
                let bitcoind_rpc_client = RpcClient::new(&rpc_credentials, http_endpoint)?;
+               let mut fees: HashMap<Target, AtomicU32> = HashMap::new();
+               fees.insert(Target::Background, AtomicU32::new(253));
+               fees.insert(Target::Normal, AtomicU32::new(2000));
+               fees.insert(Target::HighPriority, AtomicU32::new(5000));
                let client = Self {
-                       bitcoind_rpc_client: Mutex::new(bitcoind_rpc_client),
+                       bitcoind_rpc_client: Arc::new(Mutex::new(bitcoind_rpc_client)),
                        host,
                        port,
                        rpc_user,
                        rpc_password,
-                       runtime: Mutex::new(Runtime::new().unwrap()),
+                       fees: Arc::new(fees),
                };
+               BitcoindClient::poll_for_fee_estimates(
+                       client.fees.clone(),
+                       client.bitcoind_rpc_client.clone(),
+               )
+               .await;
                Ok(client)
        }
 
+       async fn poll_for_fee_estimates(
+               fees: Arc<HashMap<Target, AtomicU32>>, rpc_client: Arc<Mutex<RpcClient>>,
+       ) {
+               tokio::spawn(async move {
+                       loop {
+                               let background_estimate = {
+                                       let mut rpc = rpc_client.lock().await;
+                                       let background_conf_target = serde_json::json!(144);
+                                       let background_estimate_mode = serde_json::json!("ECONOMICAL");
+                                       let resp = rpc
+                                               .call_method::<FeeResponse>(
+                                                       "estimatesmartfee",
+                                                       &vec![background_conf_target, background_estimate_mode],
+                                               )
+                                               .await
+                                               .unwrap();
+                                       match resp.feerate {
+                                               Some(fee) => fee,
+                                               None => 253,
+                                       }
+                               };
+                               // if background_estimate.
+
+                               let normal_estimate = {
+                                       let mut rpc = rpc_client.lock().await;
+                                       let normal_conf_target = serde_json::json!(18);
+                                       let normal_estimate_mode = serde_json::json!("ECONOMICAL");
+                                       let resp = rpc
+                                               .call_method::<FeeResponse>(
+                                                       "estimatesmartfee",
+                                                       &vec![normal_conf_target, normal_estimate_mode],
+                                               )
+                                               .await
+                                               .unwrap();
+                                       match resp.feerate {
+                                               Some(fee) => fee,
+                                               None => 2000,
+                                       }
+                               };
+
+                               let high_prio_estimate = {
+                                       let mut rpc = rpc_client.lock().await;
+                                       let high_prio_conf_target = serde_json::json!(6);
+                                       let high_prio_estimate_mode = serde_json::json!("CONSERVATIVE");
+                                       let resp = rpc
+                                               .call_method::<FeeResponse>(
+                                                       "estimatesmartfee",
+                                                       &vec![high_prio_conf_target, high_prio_estimate_mode],
+                                               )
+                                               .await
+                                               .unwrap();
+
+                                       match resp.feerate {
+                                               Some(fee) => fee,
+                                               None => 5000,
+                                       }
+                               };
+
+                               fees.get(&Target::Background)
+                                       .unwrap()
+                                       .store(background_estimate, Ordering::Release);
+                               fees.get(&Target::Normal).unwrap().store(normal_estimate, Ordering::Release);
+                               fees.get(&Target::HighPriority)
+                                       .unwrap()
+                                       .store(high_prio_estimate, Ordering::Release);
+                               // match fees.get(Target::Background) {
+                               //     Some(fee) => fee.store(background_estimate, Ordering::Release),
+                               //     None =>
+                               // }
+                               // if let Some(fee) = background_estimate.feerate {
+                               //     fees.get("background").unwrap().store(fee, Ordering::Release);
+                               // }
+                               // if let Some(fee) = normal_estimate.feerate {
+                               //     fees.get("normal").unwrap().store(fee, Ordering::Release);
+                               // }
+                               // if let Some(fee) = high_prio_estimate.feerate {
+                               //     fees.get("high_prio").unwrap().store(fee, Ordering::Release);
+                               // }
+                               tokio::time::sleep(Duration::from_secs(60)).await;
+                       }
+               });
+       }
+
        pub fn get_new_rpc_client(&self) -> std::io::Result<RpcClient> {
                let http_endpoint = HttpEndpoint::for_host(self.host.clone()).with_port(self.port);
                let rpc_credentials =
@@ -47,116 +178,137 @@ impl BitcoindClient {
                RpcClient::new(&rpc_credentials, http_endpoint)
        }
 
-       pub fn create_raw_transaction(&self, outputs: Vec<HashMap<String, f64>>) -> RawTx {
-               let runtime = self.runtime.lock().unwrap();
-               let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+       pub async fn create_raw_transaction(&self, outputs: Vec<HashMap<String, f64>>) -> RawTx {
+               let mut rpc = self.bitcoind_rpc_client.lock().await;
 
                let outputs_json = serde_json::json!(outputs);
-               runtime
-                       .block_on(rpc.call_method::<RawTx>(
-                               "createrawtransaction",
-                               &vec![serde_json::json!([]), outputs_json],
-                       ))
+               rpc.call_method::<RawTx>("createrawtransaction", &vec![serde_json::json!([]), outputs_json])
+                       .await
                        .unwrap()
        }
 
-       pub fn fund_raw_transaction(&self, raw_tx: RawTx) -> FundedTx {
-               let runtime = self.runtime.lock().unwrap();
-               let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+       pub async fn fund_raw_transaction(&self, raw_tx: RawTx) -> FundedTx {
+               let mut rpc = self.bitcoind_rpc_client.lock().await;
+
+               let raw_tx_json = serde_json::json!(raw_tx.0);
+               rpc.call_method("fundrawtransaction", &[raw_tx_json]).await.unwrap()
+       }
+
+       pub async fn send_raw_transaction(&self, raw_tx: RawTx) {
+               let mut rpc = self.bitcoind_rpc_client.lock().await;
 
                let raw_tx_json = serde_json::json!(raw_tx.0);
-               runtime.block_on(rpc.call_method("fundrawtransaction", &[raw_tx_json])).unwrap()
+               rpc.call_method::<RawTx>("sendrawtransaction", &[raw_tx_json]).await.unwrap();
        }
 
-       pub fn sign_raw_transaction_with_wallet(&self, tx_hex: String) -> SignedTx {
-               let runtime = self.runtime.lock().unwrap();
-               let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+       pub async fn sign_raw_transaction_with_wallet(&self, tx_hex: String) -> SignedTx {
+               let mut rpc = self.bitcoind_rpc_client.lock().await;
 
                let tx_hex_json = serde_json::json!(tx_hex);
-               runtime
-                       .block_on(rpc.call_method("signrawtransactionwithwallet", &vec![tx_hex_json]))
-                       .unwrap()
+               rpc.call_method("signrawtransactionwithwallet", &vec![tx_hex_json]).await.unwrap()
        }
 
-       pub fn get_new_address(&self) -> Address {
-               let runtime = self.runtime.lock().unwrap();
-               let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+       pub async fn get_new_address(&self) -> Address {
+               let mut rpc = self.bitcoind_rpc_client.lock().await;
 
                let addr_args = vec![serde_json::json!("LDK output address")];
-               let addr =
-                       runtime.block_on(rpc.call_method::<NewAddress>("getnewaddress", &addr_args)).unwrap();
+               let addr = rpc.call_method::<NewAddress>("getnewaddress", &addr_args).await.unwrap();
                Address::from_str(addr.0.as_str()).unwrap()
        }
 
-       pub fn get_blockchain_info(&self) -> BlockchainInfo {
-               let runtime = self.runtime.lock().unwrap();
-               let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
-
-               runtime.block_on(rpc.call_method::<BlockchainInfo>("getblockchaininfo", &vec![])).unwrap()
+       pub async fn get_blockchain_info(&self) -> BlockchainInfo {
+               let mut rpc = self.bitcoind_rpc_client.lock().await;
+               rpc.call_method::<BlockchainInfo>("getblockchaininfo", &vec![]).await.unwrap()
        }
 }
 
 impl FeeEstimator for BitcoindClient {
        fn get_est_sat_per_1000_weight(&self, confirmation_target: ConfirmationTarget) -> u32 {
-               let runtime = self.runtime.lock().unwrap();
-               let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+               match confirmation_target {
+                       ConfirmationTarget::Background => {
+                               self.fees.get(&Target::Background).unwrap().load(Ordering::Acquire)
+                       }
+                       ConfirmationTarget::Normal => {
+                               self.fees.get(&Target::Normal).unwrap().load(Ordering::Acquire)
+                       }
+                       ConfirmationTarget::HighPriority => {
+                               self.fees.get(&Target::HighPriority).unwrap().load(Ordering::Acquire)
+                       }
+               }
+               // self.fees.g
+               // 253
+               // match confirmation_target {
+               //     ConfirmationTarget::Background =>
+               // }
+               // let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
 
-               let (conf_target, estimate_mode, default) = match confirmation_target {
-                       ConfirmationTarget::Background => (144, "ECONOMICAL", 253),
-                       ConfirmationTarget::Normal => (18, "ECONOMICAL", 20000),
-                       ConfirmationTarget::HighPriority => (6, "ECONOMICAL", 50000),
-               };
+               // let (conf_target, estimate_mode, default) = match confirmation_target {
+               //      ConfirmationTarget::Background => (144, "ECONOMICAL", 253),
+               //      ConfirmationTarget::Normal => (18, "ECONOMICAL", 20000),
+               //      ConfirmationTarget::HighPriority => (6, "CONSERVATIVE", 50000),
+               // };
 
-               // This function may be called from a tokio runtime, or not. So we need to check before
-               // making the call to avoid the error "cannot run a tokio runtime from within a tokio runtime".
-               let conf_target_json = serde_json::json!(conf_target);
-               let estimate_mode_json = serde_json::json!(estimate_mode);
-               let resp = match Handle::try_current() {
-                       Ok(_) => tokio::task::block_in_place(|| {
-                               runtime
-                                       .block_on(rpc.call_method::<FeeResponse>(
-                                               "estimatesmartfee",
-                                               &vec![conf_target_json, estimate_mode_json],
-                                       ))
-                                       .unwrap()
-                       }),
-                       _ => runtime
-                               .block_on(rpc.call_method::<FeeResponse>(
-                                       "estimatesmartfee",
-                                       &vec![conf_target_json, estimate_mode_json],
-                               ))
-                               .unwrap(),
-               };
-               if resp.errored {
-                       return default;
-               }
-               resp.feerate.unwrap()
+               // // This function may be called from a tokio runtime, or not. So we need to check before
+               // // making the call to avoid the error "cannot run a tokio runtime from within a tokio runtime".
+               // let conf_target_json = serde_json::json!(conf_target);
+               // let estimate_mode_json = serde_json::json!(estimate_mode);
+               // let resp = match Handle::try_current() {
+               //      Ok(_) => tokio::task::block_in_place(|| {
+               //              runtime
+               //                      .block_on(rpc.call_method::<FeeResponse>(
+               //                              "estimatesmartfee",
+               //                              &vec![conf_target_json, estimate_mode_json],
+               //                      ))
+               //                      .unwrap()
+               //      }),
+               //      _ => runtime
+               //              .block_on(rpc.call_method::<FeeResponse>(
+               //                      "estimatesmartfee",
+               //                      &vec![conf_target_json, estimate_mode_json],
+               //              ))
+               //              .unwrap(),
+               // };
+               // if resp.errored {
+               //      return default;
+               // }
+               // resp.feerate.unwrap()
        }
 }
 
 impl BroadcasterInterface for BitcoindClient {
        fn broadcast_transaction(&self, tx: &Transaction) {
-               let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
-               let runtime = self.runtime.lock().unwrap();
-
+               let bitcoind_rpc_client = self.bitcoind_rpc_client.clone();
                let tx_serialized = serde_json::json!(encode::serialize_hex(tx));
-               // This function may be called from a tokio runtime, or not. So we need to check before
-               // making the call to avoid the error "cannot run a tokio runtime from within a tokio runtime".
-               match Handle::try_current() {
-                       Ok(_) => {
-                               tokio::task::block_in_place(|| {
-                                       runtime
-                                               .block_on(
-                                                       rpc.call_method::<RawTx>("sendrawtransaction", &vec![tx_serialized]),
-                                               )
-                                               .unwrap();
-                               });
-                       }
-                       _ => {
-                               runtime
-                                       .block_on(rpc.call_method::<RawTx>("sendrawtransaction", &vec![tx_serialized]))
-                                       .unwrap();
-                       }
-               }
+               tokio::spawn(async move {
+                       let mut rpc = bitcoind_rpc_client.lock().await;
+                       rpc.call_method::<RawTx>("sendrawtransaction", &vec![tx_serialized]).await.unwrap();
+               });
+               // let bitcoind_rpc_client = self.bitcoind_rpc_client.clone();
+               // tokio::spawn(async move {
+               //     let rpc = bitcoind_rpc_client.lock().await;
+               //     rpc.call_method::<R>
+               // });
+               // let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+               // let runtime = self.runtime.lock().unwrap();
+
+               // let tx_serialized = serde_json::json!(encode::serialize_hex(tx));
+               // // This function may be called from a tokio runtime, or not. So we need to check before
+               // // making the call to avoid the error "cannot run a tokio runtime from within a tokio runtime".
+               // match Handle::try_current() {
+               //      Ok(_) => {
+               //              tokio::task::block_in_place(|| {
+               //                      runtime
+               //                              .block_on(
+               //                                      rpc.call_method::<RawTx>("sendrawtransaction", &vec![tx_serialized]),
+               //                              )
+               //                              .unwrap();
+               //              });
+               //      }
+               //      _ => {
+               //              runtime
+               //                      .block_on(rpc.call_method::<RawTx>("sendrawtransaction", &vec![tx_serialized]))
+               //                      .unwrap();
+               //      }
+               // }
        }
 }