Fixed some locking woes and 3.4.2.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "dashmap"
-version = "3.4.1"
+version = "3.4.2"
 authors = ["Acrimon <[email protected]>"]
 edition = "2018"
 license = "MIT"
@@ -43,7 +43,6 @@ name = "cht"
 harness = false
 
 [dependencies]
-qadapt-spin = "1.0.1"
 num_cpus = "1.11.1"
 ahash = "0.3.1"
 serde = { version = "1.0.104", optional = true, features = ["derive"] }

src/iter.rs

@@ -4,7 +4,7 @@ use super::util;
 use crate::t::Map;
 use crate::util::SharedValue;
 use crate::HashMap;
-use parking_lot::{RwLockReadGuard, RwLockWriteGuard};
+use crate::lock::{RwLockReadGuard, RwLockWriteGuard};
 use std::collections::hash_map;
 use std::hash::{BuildHasher, Hash};
 use std::sync::Arc;

src/lib.rs

@@ -1,12 +1,11 @@
 #![allow(clippy::type_complexity)]
 
-extern crate qadapt_spin as parking_lot;
-
 mod hasher;
 pub mod iter;
 pub mod mapref;
 mod t;
 mod util;
+pub mod lock;
 
 #[cfg(feature = "serde")]
 mod serde;
@@ -18,7 +17,7 @@ use iter::{Iter, IterMut};
 use mapref::entry::{Entry, OccupiedEntry, VacantEntry};
 use mapref::multiple::RefMulti;
 use mapref::one::{Ref, RefMut};
-use parking_lot::{RwLock, RwLockReadGuard, RwLockWriteGuard};
+use lock::{RwLock, RwLockReadGuard, RwLockWriteGuard};
 use std::borrow::Borrow;
 use std::fmt;
 use std::hash::Hasher;