226 lines
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226 lines
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `lib/client/src/util.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>util.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">☰</button><a class="sidebar-logo" href="../../mango_v4_client/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a><h2 class="location"></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../mango_v4_client/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../mango_v4_client/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><button type="button">?</button></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav></div><section id="main-content" class="content"><div class="example-wrap"><pre class="line-numbers"><span id="1">1</span>
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</pre><pre class="rust"><code><span class="kw">use </span>solana_client::{
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client_error::Result <span class="kw">as </span>ClientResult, rpc_client::RpcClient, rpc_request::RpcError,
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};
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<span class="kw">use </span>solana_sdk::transaction::Transaction;
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<span class="kw">use </span>solana_sdk::{
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clock::Slot, commitment_config::CommitmentConfig, signature::Signature,
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transaction::uses_durable_nonce,
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};
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<span class="kw">use </span>std::{thread, time};
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<span class="doccomment">/// Some Result<> types don't convert to anyhow::Result nicely. Force them through stringification.
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</span><span class="kw">pub trait </span>AnyhowWrap {
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<span class="kw">type </span>Value;
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<span class="kw">fn </span>map_err_anyhow(<span class="self">self</span>) -> anyhow::Result<<span class="self">Self</span>::Value>;
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}
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<span class="kw">impl</span><T, E: std::fmt::Debug> AnyhowWrap <span class="kw">for </span><span class="prelude-ty">Result</span><T, E> {
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<span class="kw">type </span>Value = T;
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<span class="kw">fn </span>map_err_anyhow(<span class="self">self</span>) -> anyhow::Result<<span class="self">Self</span>::Value> {
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<span class="self">self</span>.map_err(|err| <span class="macro">anyhow::anyhow!</span>(<span class="string">"{:?}"</span>, err))
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}
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}
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<span class="doccomment">/// Push to an async_channel::Sender and ignore if the channel is full
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</span><span class="kw">pub trait </span>AsyncChannelSendUnlessFull<T> {
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<span class="doccomment">/// Send a message if the channel isn't full
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</span><span class="kw">fn </span>send_unless_full(<span class="kw-2">&</span><span class="self">self</span>, msg: T) -> <span class="prelude-ty">Result</span><(), async_channel::SendError<T>>;
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}
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<span class="kw">impl</span><T> AsyncChannelSendUnlessFull<T> <span class="kw">for </span>async_channel::Sender<T> {
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<span class="kw">fn </span>send_unless_full(<span class="kw-2">&</span><span class="self">self</span>, msg: T) -> <span class="prelude-ty">Result</span><(), async_channel::SendError<T>> {
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<span class="kw">use </span>async_channel::<span class="kw-2">*</span>;
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<span class="kw">match </span><span class="self">self</span>.try_send(msg) {
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<span class="prelude-val">Ok</span>(()) => <span class="prelude-val">Ok</span>(()),
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<span class="prelude-val">Err</span>(TrySendError::Closed(msg)) => <span class="prelude-val">Err</span>(async_channel::SendError(msg)),
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<span class="prelude-val">Err</span>(TrySendError::Full(<span class="kw">_</span>)) => <span class="prelude-val">Ok</span>(()),
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}
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}
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}
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<span class="doccomment">/// A copy of RpcClient::send_and_confirm_transaction that returns the slot the
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/// transaction confirmed in.
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</span><span class="kw">pub fn </span>send_and_confirm_transaction(
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rpc_client: <span class="kw-2">&</span>RpcClient,
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transaction: <span class="kw-2">&</span>Transaction,
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) -> ClientResult<(Signature, Slot)> {
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<span class="kw">const </span>SEND_RETRIES: usize = <span class="number">1</span>;
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<span class="kw">const </span>GET_STATUS_RETRIES: usize = usize::MAX;
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<span class="lifetime">'sending</span>: <span class="kw">for _ in </span><span class="number">0</span>..SEND_RETRIES {
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<span class="kw">let </span>signature = rpc_client.send_transaction(transaction)<span class="question-mark">?</span>;
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<span class="kw">let </span>recent_blockhash = <span class="kw">if </span>uses_durable_nonce(transaction).is_some() {
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<span class="kw">let </span>(recent_blockhash, ..) =
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rpc_client.get_latest_blockhash_with_commitment(CommitmentConfig::processed())<span class="question-mark">?</span>;
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recent_blockhash
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} <span class="kw">else </span>{
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transaction.message.recent_blockhash
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};
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<span class="kw">for </span>status_retry <span class="kw">in </span><span class="number">0</span>..GET_STATUS_RETRIES {
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<span class="kw">let </span>response = rpc_client.get_signature_statuses(<span class="kw-2">&</span>[signature])<span class="question-mark">?</span>.value;
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<span class="kw">match </span>response[<span class="number">0</span>]
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.clone()
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.filter(|result| result.satisfies_commitment(rpc_client.commitment()))
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{
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<span class="prelude-val">Some</span>(tx_status) => {
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<span class="kw">return if let </span><span class="prelude-val">Some</span>(e) = tx_status.err {
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<span class="prelude-val">Err</span>(e.into())
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} <span class="kw">else </span>{
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<span class="prelude-val">Ok</span>((signature, tx_status.slot))
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};
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}
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<span class="prelude-val">None </span>=> {
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<span class="kw">if </span>!rpc_client
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.is_blockhash_valid(<span class="kw-2">&</span>recent_blockhash, CommitmentConfig::processed())<span class="question-mark">?
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</span>{
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<span class="comment">// Block hash is not found by some reason
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</span><span class="kw">break </span><span class="lifetime">'sending</span>;
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} <span class="kw">else if </span><span class="macro">cfg!</span>(not(test))
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<span class="comment">// Ignore sleep at last step.
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</span>&& status_retry < GET_STATUS_RETRIES
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{
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<span class="comment">// Retry twice a second
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</span>thread::sleep(time::Duration::from_millis(<span class="number">500</span>));
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<span class="kw">continue</span>;
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}
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}
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}
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}
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}
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<span class="prelude-val">Err</span>(RpcError::ForUser(
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<span class="string">"unable to confirm transaction. \
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This can happen in situations such as transaction expiration \
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and insufficient fee-payer funds"
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</span>.to_string(),
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)
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.into())
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}
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<span class="doccomment">/// Convenience function used in binaries to set up the fmt tracing_subscriber,
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/// with cololring enabled only if logging to a terminal and with EnvFilter.
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</span><span class="kw">pub fn </span>tracing_subscriber_init() {
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<span class="kw">let </span>format = tracing_subscriber::fmt::format().with_ansi(atty::is(atty::Stream::Stdout));
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tracing_subscriber::fmt()
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.with_env_filter(tracing_subscriber::EnvFilter::from_default_env())
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.event_format(format)
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.init();
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}
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</code></pre></div>
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</section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="mango_v4_client" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.65.0 (897e37553 2022-11-02)" ></div></body></html> |