From dcd06c14a63c5846ae833f2751c3b94b79d8977a Mon Sep 17 00:00:00 2001
From: Nico Burns <nico@nicoburns.com>
Date: Tue, 10 Sep 2024 16:18:59 +0100
Subject: [PATCH] Remove parking_lot dependency

std::sync::Mutex now has comparable performance
---
 Cargo.toml         | 1 -
 src/dynamic_set.rs | 6 +++---
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index df159f1..a67ed94 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,6 @@ once_cell = "1.10.0"
 serde = { version = "1", optional = true }
 phf_shared = "0.11"
 new_debug_unreachable = "1.0.2"
-parking_lot = "0.12"
 
 [[test]]
 name = "small-stack"
diff --git a/src/dynamic_set.rs b/src/dynamic_set.rs
index 46e7a54..40cea41 100644
--- a/src/dynamic_set.rs
+++ b/src/dynamic_set.rs
@@ -8,12 +8,12 @@
 // except according to those terms.
 
 use once_cell::sync::Lazy;
-use parking_lot::Mutex;
 use std::borrow::Cow;
 use std::mem;
 use std::ptr::NonNull;
 use std::sync::atomic::AtomicIsize;
 use std::sync::atomic::Ordering::SeqCst;
+use std::sync::Mutex;
 
 const NB_BUCKETS: usize = 1 << 12; // 4096
 const BUCKET_MASK: u32 = (1 << 12) - 1;
@@ -52,7 +52,7 @@ pub(crate) static DYNAMIC_SET: Lazy<Set> = Lazy::new(|| {
 impl Set {
     pub(crate) fn insert(&self, string: Cow<str>, hash: u32) -> NonNull<Entry> {
         let bucket_index = (hash & BUCKET_MASK) as usize;
-        let mut linked_list = self.buckets[bucket_index].lock();
+        let mut linked_list = self.buckets[bucket_index].lock().unwrap();
 
         {
             let mut ptr: Option<&mut Box<Entry>> = linked_list.as_mut();
@@ -90,7 +90,7 @@ impl Set {
         let value: &Entry = unsafe { &*ptr };
         let bucket_index = (value.hash & BUCKET_MASK) as usize;
 
-        let mut linked_list = self.buckets[bucket_index].lock();
+        let mut linked_list = self.buckets[bucket_index].lock().unwrap();
         debug_assert!(value.ref_count.load(SeqCst) == 0);
         let mut current: &mut Option<Box<Entry>> = &mut linked_list;