2/3: Postpone cloning the db_path

Want access to it after the last init_wal for better errors

firewood/src/db.rs

@@ -664,8 +664,8 @@ impl Db {
         };
         let root_hash_staging = StoreRevMut::new(root_hash_cache);
 
-        // recover from Wal
-        disk_requester.init_wal("wal", db_path);
+        // recover from WAL
+        disk_requester.init_wal("wal", &db_path);
 
         // set up the storage layout
 

firewood/src/storage/buffer.rs

@@ -1,6 +1,6 @@
 //! Disk buffer for staging in memory pages and flushing them to disk.
 use std::fmt::Debug;
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 use std::rc::Rc;
 use std::sync::Arc;
 use std::{cell::RefCell, collections::HashMap};
@@ -452,10 +452,10 @@ impl DiskBufferRequester {
         self.sender.blocking_send(BufferCmd::Shutdown).ok().unwrap()
     }
 
-    /// Initialize the Wal.
-    pub fn init_wal(&self, waldir: &str, rootpath: PathBuf) {
+    /// Initialize the WAL.
+    pub fn init_wal(&self, waldir: &str, rootpath: &Path) {
         self.sender
-            .blocking_send(BufferCmd::InitWal(rootpath, waldir.to_string()))
+            .blocking_send(BufferCmd::InitWal(rootpath.to_path_buf(), waldir.to_string()))
             .map_err(StoreError::Send)
             .ok();
     }
@@ -517,7 +517,7 @@ mod tests {
         let state_path = file::touch_dir("state", &root_db_path).unwrap();
         assert!(reset);
         // create a new wal directory on top of root_db_fd
-        disk_requester.init_wal("wal", root_db_path);
+        disk_requester.init_wal("wal", &root_db_path);
 
         // create a new state cache which tracks on disk state.
         let state_cache = Rc::new(
@@ -605,7 +605,7 @@ mod tests {
         let state_path = file::touch_dir("state", &root_db_path).unwrap();
         assert!(reset);
         // create a new wal directory on top of root_db_fd
-        disk_requester.init_wal("wal", root_db_path);
+        disk_requester.init_wal("wal", &root_db_path);
 
         // create a new state cache which tracks on disk state.
         let state_cache = Rc::new(