Struct MemoryStore 

pub struct MemoryStore { /* private fields */ }

In-memory, non-persistent implementation of the EventCacheStore.

Default if no other is configured at startup.

Note that this store is not transactional. This is particularly relevant when calling EventCacheStore::handle_linked_chunk_updates, which consumes a list of Updates. When processing this list, if one of the Updates fails, the previous updates in the list will not be reversed.

Implementations

impl MemoryStore

pub fn new() -> Self

Create a new empty MemoryStore

Trait Implementations

impl Clone for MemoryStore

fn clone(&self) -> MemoryStore

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MemoryStore

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MemoryStore

fn default() -> Self

Returns the “default value” for a type.

impl EventCacheStore for MemoryStore

type Error = EventCacheStoreError

The error type used by this event cache store.

fn try_take_leased_lock<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, lease_duration_ms: u32, key: &'life1 str, holder: &'life2 str, ) -> Pin<Box<dyn Future<Output = Result<Option<CrossProcessLockGeneration>, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Try to take a lock using the given store.

fn handle_linked_chunk_updates<'life0, 'life1, 'async_trait>( &'life0 self, linked_chunk_id: LinkedChunkId<'life1>, updates: Vec<Update<Event, Gap>>, ) -> Pin<Box<dyn Future<Output = Result<(), Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

An Update reflects an operation that has happened inside a linked chunk. The linked chunk is used by the event cache to store the events in-memory. This method aims at forwarding this update inside this store.

fn load_all_chunks_metadata<'life0, 'life1, 'async_trait>( &'life0 self, linked_chunk_id: LinkedChunkId<'life1>, ) -> Pin<Box<dyn Future<Output = Result<Vec<ChunkMetadata>, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Load all of the chunks’ metadata for the given LinkedChunkId.

fn load_last_chunk<'life0, 'life1, 'async_trait>( &'life0 self, linked_chunk_id: LinkedChunkId<'life1>, ) -> Pin<Box<dyn Future<Output = Result<(Option<RawChunk<Event, Gap>>, ChunkIdentifierGenerator), Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Load the last chunk of the LinkedChunk holding all events of the room identified by room_id.

fn load_previous_chunk<'life0, 'life1, 'async_trait>( &'life0 self, linked_chunk_id: LinkedChunkId<'life1>, before_chunk_identifier: ChunkIdentifier, ) -> Pin<Box<dyn Future<Output = Result<Option<RawChunk<Event, Gap>>, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Load the chunk before the chunk identified by before_chunk_identifier of the LinkedChunk holding all events of the room identified by room_id

fn clear_all_linked_chunks<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<(), Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Clear persisted events for all the rooms.

fn filter_duplicated_events<'life0, 'life1, 'async_trait>( &'life0 self, linked_chunk_id: LinkedChunkId<'life1>, events: Vec<OwnedEventId>, ) -> Pin<Box<dyn Future<Output = Result<Vec<(OwnedEventId, Position)>, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Given a set of event IDs, return the duplicated events along with their position if there are any.

fn find_event<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, room_id: &'life1 RoomId, event_id: &'life2 EventId, ) -> Pin<Box<dyn Future<Output = Result<Option<Event>, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Find an event by its ID in a room.

fn find_event_relations<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, room_id: &'life1 RoomId, event_id: &'life2 EventId, filters: Option<&'life3 [RelationType]>, ) -> Pin<Box<dyn Future<Output = Result<Vec<(Event, Option<Position>)>, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

Find all the events (alongside their position in the room’s linked chunk, if available) that relate to a given event.

fn get_room_events<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, room_id: &'life1 RoomId, event_type: Option<&'life2 str>, session_id: Option<&'life3 str>, ) -> Pin<Box<dyn Future<Output = Result<Vec<Event>, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

Get all events in this room.

fn save_event<'life0, 'life1, 'async_trait>( &'life0 self, room_id: &'life1 RoomId, event: Event, ) -> Pin<Box<dyn Future<Output = Result<(), Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Save an event, that might or might not be part of an existing linked chunk.

fn get_size<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Option<usize>, Self::Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Returns the size of the store in bytes, if known.

fn remove_room<'life0, 'life1, 'async_trait>( &'life0 self, room_id: &'life1 RoomId, ) -> Pin<Box<dyn Future<Output = Result<(), Self::Error>> + Send + 'async_trait>>

where Self: Sync + 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Remove all data tied to a given room from the cache.