33 lines
1.1 KiB
Rust
33 lines
1.1 KiB
Rust
use std::{collections::HashSet, sync::Arc};
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use ruma::{EventId, OwnedEventId, RoomId};
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use tokio::sync::MutexGuard;
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use crate::Result;
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pub(crate) trait Data: Send + Sync {
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/// Returns the last state hash key added to the db for the given room.
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fn get_room_shortstatehash(&self, room_id: &RoomId) -> Result<Option<u64>>;
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/// Set the state hash to a new version, but does not update `state_cache`.
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fn set_room_state(
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&self,
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room_id: &RoomId,
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new_shortstatehash: u64,
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_mutex_lock: &MutexGuard<'_, ()>, // Take mutex guard to make sure users get the room state mutex
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) -> Result<()>;
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/// Associates a state with an event.
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fn set_event_state(&self, shorteventid: u64, shortstatehash: u64) -> Result<()>;
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/// Returns all events we would send as the `prev_events` of the next event.
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fn get_forward_extremities(&self, room_id: &RoomId) -> Result<HashSet<Arc<EventId>>>;
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/// Replace the forward extremities of the room.
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fn set_forward_extremities(
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&self,
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room_id: &RoomId,
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event_ids: Vec<OwnedEventId>,
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_mutex_lock: &MutexGuard<'_, ()>, // Take mutex guard to make sure users get the room state mutex
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) -> Result<()>;
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}
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