Implement KVStore for SqliteStore

Author: tnull

src/io/sqlite_store/mod.rs

@@ -6,12 +6,15 @@
 // accordance with one or both of these licenses.
 
 //! Objects related to [`SqliteStore`] live here.
+use std::boxed::Box;
 use std::fs;
+use std::future::Future;
 use std::path::PathBuf;
+use std::pin::Pin;
 use std::sync::{Arc, Mutex};
 
 use lightning::io;
-use lightning::util::persist::KVStoreSync;
+use lightning::util::persist::{KVStore, KVStoreSync};
 use lightning_types::string::PrintableString;
 use rusqlite::{named_params, Connection};
 
@@ -60,6 +63,76 @@ impl SqliteStore {
 	}
 }
 
+impl KVStore for SqliteStore {
+	fn read(
+		&self, primary_namespace: &str, secondary_namespace: &str, key: &str,
+	) -> Pin<Box<dyn Future<Output = Result<Vec<u8>, io::Error>> + Send>> {
+		let primary_namespace = primary_namespace.to_string();
+		let secondary_namespace = secondary_namespace.to_string();
+		let key = key.to_string();
+		let inner = Arc::clone(&self.inner);
+		let fut = tokio::task::spawn_blocking(move || {
+			inner.read_internal(&primary_namespace, &secondary_namespace, &key)
+		});
+		Box::pin(async move {
+			fut.await.unwrap_or_else(|e| {
+				let msg = format!("Failed to IO operation due join error: {}", e);
+				Err(io::Error::new(io::ErrorKind::Other, msg))
+			})
+		})
+	}
+	fn write(
+		&self, primary_namespace: &str, secondary_namespace: &str, key: &str, buf: Vec<u8>,
+	) -> Pin<Box<dyn Future<Output = Result<(), io::Error>> + Send>> {
+		let primary_namespace = primary_namespace.to_string();
+		let secondary_namespace = secondary_namespace.to_string();
+		let key = key.to_string();
+		let inner = Arc::clone(&self.inner);
+		let fut = tokio::task::spawn_blocking(move || {
+			inner.write_internal(&primary_namespace, &secondary_namespace, &key, buf)
+		});
+		Box::pin(async move {
+			fut.await.unwrap_or_else(|e| {
+				let msg = format!("Failed to IO operation due join error: {}", e);
+				Err(io::Error::new(io::ErrorKind::Other, msg))
+			})
+		})
+	}
+	fn remove(
+		&self, primary_namespace: &str, secondary_namespace: &str, key: &str, lazy: bool,
+	) -> Pin<Box<dyn Future<Output = Result<(), io::Error>> + Send>> {
+		let primary_namespace = primary_namespace.to_string();
+		let secondary_namespace = secondary_namespace.to_string();
+		let key = key.to_string();
+		let inner = Arc::clone(&self.inner);
+		let fut = tokio::task::spawn_blocking(move || {
+			inner.remove_internal(&primary_namespace, &secondary_namespace, &key, lazy)
+		});
+		Box::pin(async move {
+			fut.await.unwrap_or_else(|e| {
+				let msg = format!("Failed to IO operation due join error: {}", e);
+				Err(io::Error::new(io::ErrorKind::Other, msg))
+			})
+		})
+	}
+	fn list(
+		&self, primary_namespace: &str, secondary_namespace: &str,
+	) -> Pin<Box<dyn Future<Output = Result<Vec<String>, io::Error>> + Send>> {
+		let primary_namespace = primary_namespace.to_string();
+		let secondary_namespace = secondary_namespace.to_string();
+		let inner = Arc::clone(&self.inner);
+		let fut = tokio::task::spawn_blocking(move || {
+			inner.list_internal(&primary_namespace, &secondary_namespace)
+		});
+		Box::pin(async move {
+			fut.await.unwrap_or_else(|e| {
+				let msg = format!("Failed to IO operation due join error: {}", e);
+				Err(io::Error::new(io::ErrorKind::Other, msg))
+			})
+		})
+	}
+}
+
 impl KVStoreSync for SqliteStore {
 	fn read(
 		&self, primary_namespace: &str, secondary_namespace: &str, key: &str,