242 lines
8.4 KiB
Rust
242 lines
8.4 KiB
Rust
//! Defines traits for blocking (synchronous) and non-blocking (asynchronous)
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//! communication with a Solana server as well a a trait that encompasses both.
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//!
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//! //! Synchronous implementations are expected to create transactions, sign them, and send
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//! them with multiple retries, updating blockhashes and resigning as-needed.
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//!
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//! Asynchronous implementations are expected to create transactions, sign them, and send
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//! them but without waiting to see if the server accepted it.
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#![cfg(feature = "full")]
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use crate::{
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account::Account,
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clock::Slot,
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commitment_config::CommitmentConfig,
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epoch_info::EpochInfo,
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fee_calculator::{FeeCalculator, FeeRateGovernor},
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hash::Hash,
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instruction::Instruction,
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message::Message,
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pubkey::Pubkey,
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signature::{Keypair, Signature},
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signer::Signer,
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signers::Signers,
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system_instruction,
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transaction::{self, Transaction, VersionedTransaction},
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transport::Result,
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};
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pub trait Client: SyncClient + AsyncClient {
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fn tpu_addr(&self) -> String;
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}
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pub trait SyncClient {
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/// Create a transaction from the given message, and send it to the
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/// server, retrying as-needed.
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fn send_and_confirm_message<T: Signers + ?Sized>(
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&self,
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keypairs: &T,
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message: Message,
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) -> Result<Signature>;
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/// Create a transaction from a single instruction that only requires
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/// a single signer. Then send it to the server, retrying as-needed.
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fn send_and_confirm_instruction(
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&self,
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keypair: &Keypair,
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instruction: Instruction,
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) -> Result<Signature>;
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/// Transfer lamports from `keypair` to `pubkey`, retrying until the
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/// transfer completes or produces and error.
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fn transfer_and_confirm(
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&self,
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lamports: u64,
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keypair: &Keypair,
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pubkey: &Pubkey,
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) -> Result<Signature>;
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/// Get an account or None if not found.
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fn get_account_data(&self, pubkey: &Pubkey) -> Result<Option<Vec<u8>>>;
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/// Get an account or None if not found.
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fn get_account(&self, pubkey: &Pubkey) -> Result<Option<Account>>;
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/// Get an account or None if not found. Uses explicit commitment configuration.
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fn get_account_with_commitment(
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&self,
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pubkey: &Pubkey,
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commitment_config: CommitmentConfig,
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) -> Result<Option<Account>>;
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/// Get account balance or 0 if not found.
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fn get_balance(&self, pubkey: &Pubkey) -> Result<u64>;
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/// Get account balance or 0 if not found. Uses explicit commitment configuration.
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fn get_balance_with_commitment(
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&self,
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pubkey: &Pubkey,
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commitment_config: CommitmentConfig,
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) -> Result<u64>;
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fn get_minimum_balance_for_rent_exemption(&self, data_len: usize) -> Result<u64>;
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/// Get recent blockhash
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#[deprecated(since = "1.9.0", note = "Please use `get_latest_blockhash` instead")]
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fn get_recent_blockhash(&self) -> Result<(Hash, FeeCalculator)>;
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/// Get recent blockhash. Uses explicit commitment configuration.
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#[deprecated(
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since = "1.9.0",
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note = "Please use `get_latest_blockhash_with_commitment` and `get_latest_blockhash_with_commitment` instead"
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)]
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fn get_recent_blockhash_with_commitment(
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&self,
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commitment_config: CommitmentConfig,
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) -> Result<(Hash, FeeCalculator, Slot)>;
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/// Get `Some(FeeCalculator)` associated with `blockhash` if it is still in
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/// the BlockhashQueue`, otherwise `None`
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#[deprecated(
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since = "1.9.0",
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note = "Please use `get_fee_for_message` or `is_blockhash_valid` instead"
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)]
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fn get_fee_calculator_for_blockhash(&self, blockhash: &Hash) -> Result<Option<FeeCalculator>>;
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/// Get recent fee rate governor
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#[deprecated(
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since = "1.9.0",
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note = "Please do not use, will no longer be available in the future"
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)]
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fn get_fee_rate_governor(&self) -> Result<FeeRateGovernor>;
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/// Get signature status.
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fn get_signature_status(
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&self,
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signature: &Signature,
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) -> Result<Option<transaction::Result<()>>>;
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/// Get signature status. Uses explicit commitment configuration.
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fn get_signature_status_with_commitment(
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&self,
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signature: &Signature,
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commitment_config: CommitmentConfig,
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) -> Result<Option<transaction::Result<()>>>;
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/// Get last known slot
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fn get_slot(&self) -> Result<Slot>;
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/// Get last known slot. Uses explicit commitment configuration.
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fn get_slot_with_commitment(&self, commitment_config: CommitmentConfig) -> Result<u64>;
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/// Get transaction count
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fn get_transaction_count(&self) -> Result<u64>;
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/// Get transaction count. Uses explicit commitment configuration.
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fn get_transaction_count_with_commitment(
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&self,
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commitment_config: CommitmentConfig,
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) -> Result<u64>;
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fn get_epoch_info(&self) -> Result<EpochInfo>;
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/// Poll until the signature has been confirmed by at least `min_confirmed_blocks`
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fn poll_for_signature_confirmation(
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&self,
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signature: &Signature,
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min_confirmed_blocks: usize,
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) -> Result<usize>;
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/// Poll to confirm a transaction.
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fn poll_for_signature(&self, signature: &Signature) -> Result<()>;
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#[deprecated(
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since = "1.9.0",
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note = "Please do not use, will no longer be available in the future"
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)]
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fn get_new_blockhash(&self, blockhash: &Hash) -> Result<(Hash, FeeCalculator)>;
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/// Get last known blockhash
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fn get_latest_blockhash(&self) -> Result<Hash>;
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/// Get latest blockhash with last valid block height. Uses explicit commitment configuration.
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fn get_latest_blockhash_with_commitment(
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&self,
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commitment_config: CommitmentConfig,
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) -> Result<(Hash, u64)>;
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/// Check if the blockhash is valid
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fn is_blockhash_valid(&self, blockhash: &Hash, commitment: CommitmentConfig) -> Result<bool>;
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/// Calculate the fee for a `Message`
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fn get_fee_for_message(&self, message: &Message) -> Result<u64>;
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}
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pub trait AsyncClient {
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/// Send a signed transaction, but don't wait to see if the server accepted it.
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fn async_send_transaction(&self, transaction: Transaction) -> Result<Signature> {
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self.async_send_versioned_transaction(transaction.into())
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}
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/// Send a batch of signed transactions without confirmation.
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fn async_send_batch(&self, transactions: Vec<Transaction>) -> Result<()> {
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let transactions = transactions.into_iter().map(Into::into).collect();
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self.async_send_versioned_transaction_batch(transactions)
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}
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/// Send a signed versioned transaction, but don't wait to see if the server accepted it.
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fn async_send_versioned_transaction(
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&self,
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transaction: VersionedTransaction,
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) -> Result<Signature>;
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/// Send a batch of signed versioned transactions without confirmation.
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fn async_send_versioned_transaction_batch(
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&self,
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transactions: Vec<VersionedTransaction>,
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) -> Result<()> {
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for t in transactions {
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self.async_send_versioned_transaction(t)?;
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}
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Ok(())
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}
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/// Create a transaction from the given message, and send it to the
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/// server, but don't wait for to see if the server accepted it.
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fn async_send_message<T: Signers + ?Sized>(
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&self,
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keypairs: &T,
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message: Message,
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recent_blockhash: Hash,
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) -> Result<Signature> {
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let transaction = Transaction::new(keypairs, message, recent_blockhash);
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self.async_send_transaction(transaction)
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}
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/// Create a transaction from a single instruction that only requires
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/// a single signer. Then send it to the server, but don't wait for a reply.
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fn async_send_instruction(
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&self,
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keypair: &Keypair,
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instruction: Instruction,
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recent_blockhash: Hash,
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) -> Result<Signature> {
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let message = Message::new(&[instruction], Some(&keypair.pubkey()));
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self.async_send_message(&[keypair], message, recent_blockhash)
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}
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/// Attempt to transfer lamports from `keypair` to `pubkey`, but don't wait to confirm.
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fn async_transfer(
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&self,
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lamports: u64,
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keypair: &Keypair,
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pubkey: &Pubkey,
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recent_blockhash: Hash,
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) -> Result<Signature> {
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let transfer_instruction =
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system_instruction::transfer(&keypair.pubkey(), pubkey, lamports);
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self.async_send_instruction(keypair, transfer_instruction, recent_blockhash)
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}
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}
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