Make all experimental storages optional

crates/librqbit/src/storage/middleware/slow.rs

@@ -1,3 +1,7 @@
+/*
+A storage middleware that slows down the underlying storage.
+*/
+
 use std::time::Duration;
 
 use rand_distr::Distribution;

crates/librqbit/src/storage/middleware/timing.rs

@@ -1,3 +1,7 @@
+/*
+A storage middleware that logs the time underlying storage operations took.
+*/
+
 use crate::storage::{StorageFactory, StorageFactoryExt, TorrentStorage};
 
 #[derive(Clone)]

crates/librqbit/src/storage/middleware/write_through_cache.rs

@@ -1,3 +1,10 @@
+/*
+A storage middleware that caches pieces in memory, so that subsequent reads (for checksumming) are
+free.
+
+An example, untested and unproven to be useful.
+*/
+
 use std::num::NonZeroUsize;
 
 use anyhow::Context;