Rust 1.80

Preserves the fn accessors within the Monero crates so that we can use statics
in some cfgs yet not all (in order to provide support for more low-memory
devices) with the exception of `H` (which truly should be cached).

common/std-shims/Cargo.toml

@@ -17,7 +17,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 workspace = true
 
 [dependencies]
-spin = { version = "0.9", default-features = false, features = ["use_ticket_mutex", "once"] }
+spin = { version = "0.9", default-features = false, features = ["use_ticket_mutex", "lazy"] }
 hashbrown = { version = "0.14", default-features = false, features = ["ahash", "inline-more"] }
 
 [features]

common/std-shims/src/sync.rs

@@ -26,27 +26,6 @@ mod mutex_shim {
 pub use mutex_shim::{ShimMutex as Mutex, MutexGuard};
 
 #[cfg(feature = "std")]
-pub use std::sync::OnceLock;
+pub use std::sync::LazyLock;
 #[cfg(not(feature = "std"))]
-mod oncelock_shim {
-  use spin::Once;
-
-  pub struct OnceLock<T>(Once<T>);
-  impl<T> OnceLock<T> {
-    pub const fn new() -> OnceLock<T> {
-      OnceLock(Once::new())
-    }
-    pub fn get(&self) -> Option<&T> {
-      self.0.poll()
-    }
-    pub fn get_mut(&mut self) -> Option<&mut T> {
-      self.0.get_mut()
-    }
-
-    pub fn get_or_init<F: FnOnce() -> T>(&self, f: F) -> &T {
-      self.0.call_once(f)
-    }
-  }
-}
-#[cfg(not(feature = "std"))]
-pub use oncelock_shim::*;
+pub use spin::Lazy as LazyLock;