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Replace lazy_static with OnceLock inside monero-serai

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lazy_static, if no_std environments were used, effectively required always
using spin locks. This resolves the ergonomics of that while adopting Rust std
code.

no_std does still use a spin based solution. Theoretically, we could use
atomics, yet writing our own Mutex wasn't a priority.
This commit is contained in:
Luke Parker
2023-06-28 21:16:33 -04:00
parent 8ced63eaac
commit d25c668ee4
17 changed files with 212 additions and 129 deletions
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10
coins/monero/tests/runner.rs
View File

@@ -1,7 +1,5 @@
use core::ops::Deref;
use std::collections::HashSet;
use lazy_static::lazy_static;
use std_shims::{sync::OnceLock, collections::HashSet};
use zeroize::Zeroizing;
use rand_core::OsRng;
@@ -98,9 +96,7 @@ pub async fn rpc() -> Rpc<HttpRpc> {
rpc
}
lazy_static! {
pub static ref SEQUENTIAL: Mutex<()> = Mutex::new(());
}
pub static SEQUENTIAL: OnceLock<Mutex<()>> = OnceLock::new();
#[macro_export]
macro_rules! async_sequential {
@@ -108,7 +104,7 @@ macro_rules! async_sequential {
$(
#[tokio::test]
async fn $name() {
let guard = runner::SEQUENTIAL.lock().await;
let guard = runner::SEQUENTIAL.get_or_init(|| tokio::sync::Mutex::new(())).lock().await;
let local = tokio::task::LocalSet::new();
local.run_until(async move {
if let Err(err) = tokio::task::spawn_local(async move { $body }).await {