#![allow(clippy::implicit_hasher)]
#[cfg(feature = "asynch")]
pub mod asynch;
use crate::internals::lincowcell::{LinCowCell, LinCowCellReadTxn, LinCowCellWriteTxn};
include!("impl.rs");
impl<K: Hash + Eq + Clone + Debug + Sync + Send + 'static, V: Clone + Sync + Send + 'static>
HashMap<K, V>
{
pub fn new() -> Self {
HashMap {
inner: LinCowCell::new(unsafe { SuperBlock::new() }),
}
}
pub fn read(&self) -> HashMapReadTxn<K, V> {
let inner = self.inner.read();
HashMapReadTxn { inner }
}
pub fn write(&self) -> HashMapWriteTxn<K, V> {
let inner = self.inner.write();
HashMapWriteTxn { inner }
}
pub fn try_write(&self) -> Option<HashMapWriteTxn<K, V>> {
self.inner
.try_write()
.map(|inner| HashMapWriteTxn { inner })
}
}
impl<
'a,
K: Hash + Eq + Clone + Debug + Sync + Send + 'static,
V: Clone + Sync + Send + 'static,
> HashMapWriteTxn<'a, K, V>
{
pub fn commit(self) {
self.inner.commit();
}
}
#[cfg(test)]
mod tests {
use super::HashMap;
#[test]
fn test_hashmap_basic_write() {
let hmap: HashMap<usize, usize> = HashMap::new();
let mut hmap_write = hmap.write();
hmap_write.insert(10, 10);
hmap_write.insert(15, 15);
assert!(hmap_write.contains_key(&10));
assert!(hmap_write.contains_key(&15));
assert!(!hmap_write.contains_key(&20));
assert!(hmap_write.get(&10) == Some(&10));
{
let v = hmap_write.get_mut(&10).unwrap();
*v = 11;
}
assert!(hmap_write.get(&10) == Some(&11));
assert!(hmap_write.remove(&10).is_some());
assert!(!hmap_write.contains_key(&10));
assert!(hmap_write.contains_key(&15));
assert!(hmap_write.remove(&30).is_none());
hmap_write.clear();
assert!(!hmap_write.contains_key(&10));
assert!(!hmap_write.contains_key(&15));
hmap_write.commit();
}
#[test]
fn test_hashmap_basic_read_write() {
let hmap: HashMap<usize, usize> = HashMap::new();
let mut hmap_w1 = hmap.write();
hmap_w1.insert(10, 10);
hmap_w1.insert(15, 15);
hmap_w1.commit();
let hmap_r1 = hmap.read();
assert!(hmap_r1.contains_key(&10));
assert!(hmap_r1.contains_key(&15));
assert!(!hmap_r1.contains_key(&20));
let mut hmap_w2 = hmap.write();
hmap_w2.insert(20, 20);
hmap_w2.commit();
assert!(hmap_r1.contains_key(&10));
assert!(hmap_r1.contains_key(&15));
assert!(!hmap_r1.contains_key(&20));
let hmap_r2 = hmap.read();
assert!(hmap_r2.contains_key(&10));
assert!(hmap_r2.contains_key(&15));
assert!(hmap_r2.contains_key(&20));
}
#[test]
fn test_hashmap_basic_read_snapshot() {
let hmap: HashMap<usize, usize> = HashMap::new();
let mut hmap_w1 = hmap.write();
hmap_w1.insert(10, 10);
hmap_w1.insert(15, 15);
let snap = hmap_w1.to_snapshot();
assert!(snap.contains_key(&10));
assert!(snap.contains_key(&15));
assert!(!snap.contains_key(&20));
}
#[test]
fn test_hashmap_basic_iter() {
let hmap: HashMap<usize, usize> = HashMap::new();
let mut hmap_w1 = hmap.write();
assert!(hmap_w1.iter().count() == 0);
hmap_w1.insert(10, 10);
hmap_w1.insert(15, 15);
assert!(hmap_w1.iter().count() == 2);
}
#[test]
fn test_hashmap_from_iter() {
let hmap: HashMap<usize, usize> = vec![(10, 10), (15, 15), (20, 20)].into_iter().collect();
let hmap_r2 = hmap.read();
assert!(hmap_r2.contains_key(&10));
assert!(hmap_r2.contains_key(&15));
assert!(hmap_r2.contains_key(&20));
}
}