temp!

crates/matrix-sdk-base/src/event_cache/store/memory_store.rs

@@ -16,14 +16,15 @@ use std::{collections::HashMap, num::NonZeroUsize, sync::RwLock as StdRwLock, ti
 
 use async_trait::async_trait;
 use matrix_sdk_common::{
-    linked_chunk::Update, ring_buffer::RingBuffer,
-    store_locks::memory_store_helper::try_take_leased_lock,
+    linked_chunk::{LinkedChunk, Update},
+    ring_buffer::RingBuffer,
+    store_locks::memory_store_helper::{handle_linked_chunk_updates, try_take_leased_lock},
 };
 use ruma::{MxcUri, OwnedMxcUri};
 
 use super::{EventCacheStore, EventCacheStoreError, Result};
 use crate::{
-    event_cache::{Event, Gap},
+    event_cache::{Event, Gap, DEFAULT_CHUNK_CAPACITY},
     media::{MediaRequestParameters, UniqueKey as _},
 };
 
@@ -35,6 +36,7 @@ use crate::{
 pub struct MemoryStore {
     media: StdRwLock<RingBuffer<(OwnedMxcUri, String /* unique key */, Vec<u8>)>>,
     leases: StdRwLock<HashMap<String, (String, Instant)>>,
+    events: StdRwLock<LinkedChunk<DEFAULT_CHUNK_CAPACITY, Event, Gap>>,
 }
 
 // SAFETY: `new_unchecked` is safe because 20 is not zero.
@@ -45,6 +47,7 @@ impl Default for MemoryStore {
         Self {
             media: StdRwLock::new(RingBuffer::new(NUMBER_OF_MEDIAS)),
             leases: Default::default(),
+            events: StdRwLock::new(LinkedChunk::new()),
         }
     }
 }
@@ -74,7 +77,7 @@ impl EventCacheStore for MemoryStore {
         &self,
         updates: &[Update<Event, Gap>],
     ) -> Result<(), Self::Error> {
-        todo!()
+        Ok(handle_linked_chunk_updates(&self.events, updates))
     }
 
     async fn add_media_content(

crates/matrix-sdk-common/src/store_locks.rs

@@ -551,4 +551,16 @@ pub mod memory_store_helper {
             }
         }
     }
+
+    pub fn handle_linked_chunk_updates<const CHUNK_CAPACITY: usize, Event, Gap>(
+        linked_chunk: &RwLock<LinkedChunk<CHUNK_CAPACITY, Event, Gap>>,
+        updates: &[Update<Event, Gap>],
+    ) {
+        for update in updates {
+            match update {
+                Update::NewItemsChunk
+            }
+        }
+        todo!()
+    }
 }