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lazy-construct presence; avoids useless db queries in sender and syncer.

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Signed-off-by: Jason Volk <jason@zemos.net>
This commit is contained in:
Jason Volk 2024-04-16 02:00:54 -07:00 • committed by June
parent 8b003e6be2
commit 33cc3d56c1
5 changed files with 16 additions and 11 deletions
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2
src/service/presence/data.rs
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@ -17,5 +17,5 @@ pub trait Data: Send + Sync {
/// Returns the most recent presence updates that happened after the event
/// with id `since`.
fn presence_since<'a>(&'a self, since: u64) -> Box<dyn Iterator<Item = (OwnedUserId, u64, PresenceEvent)> + 'a>;
fn presence_since<'a>(&'a self, since: u64) -> Box<dyn Iterator<Item = (OwnedUserId, u64, Vec<u8>)> + 'a>;
}

7
src/service/presence/mod.rs
View file

@ -35,6 +35,11 @@ impl Presence {
}
}
pub fn from_json_bytes_to_event(bytes: &[u8], user_id: &UserId) -> Result<PresenceEvent> {
let presence = Self::from_json_bytes(bytes)?;
presence.to_presence_event(user_id)
}
pub fn from_json_bytes(bytes: &[u8]) -> Result<Self> {
serde_json::from_slice(bytes).map_err(|_| Error::bad_database("Invalid presence data in database"))
}
@ -169,7 +174,7 @@ impl Service {
/// Returns the most recent presence updates that happened after the event
/// with id `since`.
pub fn presence_since(&self, since: u64) -> Box<dyn Iterator<Item = (OwnedUserId, u64, PresenceEvent)>> {
pub fn presence_since(&self, since: u64) -> Box<dyn Iterator<Item = (OwnedUserId, u64, Vec<u8>)>> {
self.db.presence_since(since)
}