feat(sqlite): Add logs around read and write.

Author: Hywan

crates/matrix-sdk-sqlite/src/event_cache_store.rs

@@ -47,7 +47,7 @@ use tokio::{
     fs,
     sync::{Mutex, OwnedMutexGuard},
 };
-use tracing::{debug, error, trace};
+use tracing::{debug, error, instrument, trace};
 
 use crate::{
     error::{Error, Result},
@@ -173,9 +173,14 @@ impl SqliteEventCacheStore {
     }
 
     // Acquire a connection for executing read operations.
+    #[instrument(skip_all)]
     async fn read(&self) -> Result<SqliteAsyncConn> {
+        trace!("Taking a `read` connection");
+
         let connection = self.pool.get().await?;
 
+        trace!("`read` connection taken");
+
         // Per https://www.sqlite.org/foreignkeys.html#fk_enable, foreign key
         // support must be enabled on a per-connection basis. Execute it every
         // time we try to get a connection, since we can't guarantee a previous
@@ -186,9 +191,14 @@ impl SqliteEventCacheStore {
     }
 
     // Acquire a connection for executing write operations.
+    #[instrument(skip_all)]
     async fn write(&self) -> Result<OwnedMutexGuard<SqliteAsyncConn>> {
+        trace!("Taking a `write` connection");
+
         let connection = self.write_connection.clone().lock_owned().await;
 
+        trace!("`write` connection taken");
+
         // Per https://www.sqlite.org/foreignkeys.html#fk_enable, foreign key
         // support must be enabled on a per-connection basis. Execute it every
         // time we try to get a connection, since we can't guarantee a previous