improved oncecell usage

crypto-glue/build.rs

@@ -1,4 +1,8 @@
-#![allow(clippy::inconsistent_digit_grouping, clippy::uninlined_format_args, clippy::unusual_byte_groupings)]
+#![allow(
+    clippy::inconsistent_digit_grouping,
+    clippy::uninlined_format_args,
+    clippy::unusual_byte_groupings
+)]
 
 use std::env;
 

crypto-glue/src/p384.rs

@@ -376,14 +376,10 @@ impl Drop for OSSLKey {
 /// OpenSSL wrapper for a EC_GROUP that is used to tell rust that an OpenSSL EC_GROUP is threadsafe.
 /// We only ever instantiate one of these with lazy_static. It is never freed.
 struct OSSLGroup(*mut ffi::EC_GROUP);
-impl OSSLGroup {
-    unsafe fn p384() -> Self {
-        Self(cvt_p(ffi::EC_GROUP_new_by_curve_name(ffi::NID_secp384r1)).unwrap())
-    }
-}
 unsafe impl Send for OSSLGroup {}
 unsafe impl Sync for OSSLGroup {}
-static GROUP_P384: Lazy<OSSLGroup> = Lazy::new(||unsafe { OSSLGroup::p384() });
+static GROUP_P384: Lazy<OSSLGroup> =
+    Lazy::new(|| unsafe { OSSLGroup(cvt_p(ffi::EC_GROUP_new_by_curve_name(ffi::NID_secp384r1)).unwrap()) });
 
 impl p384::P384PublicKey for P384PublicKey {
     fn from_bytes(raw_key: &[u8; p384::P384_PUBLIC_KEY_SIZE]) -> Option<Self> {

crypto-glue/src/random.rs

@@ -10,7 +10,7 @@ use std::sync::Mutex;
 
 use libc::c_int;
 use once_cell::unsync::Lazy;
-use rand_xoshiro::rand_core::{SeedableRng, RngCore, Error, CryptoRng};
+use rand_xoshiro::rand_core::{CryptoRng, Error, RngCore, SeedableRng};
 
 use crate::error::cvt;
 
@@ -23,7 +23,6 @@ pub fn fill_bytes_secure(dest: &mut [u8]) {
     }
 }
 
-
 pub fn next_u32_secure() -> u32 {
     let mut tmp = [0u8; 4];
     fill_bytes_secure(&mut tmp);
@@ -130,7 +129,8 @@ pub use rand_xoshiro::Xoshiro256StarStar;
 /// A global Xoshiro256** wrapped in a mutex and a OnceCell.
 /// Unsync OnceCell is just a wrapped `Option<>` and is very fast.
 /// Also OnceCell is about to be stabilized into Rust std.
-pub static GLOBAL_XORSHIFT: Mutex<Lazy<Xoshiro256StarStar>> = Mutex::new(Lazy::new(|| Xoshiro256StarStar::from_rng(SecureRandom).unwrap()));
+pub static GLOBAL_XORSHIFT: Mutex<Lazy<Xoshiro256StarStar>> =
+    Mutex::new(Lazy::new(|| Xoshiro256StarStar::from_rng(SecureRandom).unwrap()));
 
 /// Quickly creates a new Xoshiro256StarStar state that is randomly seeded and fully owned by the
 /// caller (does not require dereferencing and locking a global variable).