From d856b804c0f42c310804eb5d15c0f5aa0da650c9 Mon Sep 17 00:00:00 2001
From: siddontang <siddontang@gmail.com>
Date: Fri, 27 May 2016 20:28:38 +0800
Subject: [PATCH 1/2] save path for later use

---
 src/rocksdb.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/rocksdb.rs b/src/rocksdb.rs
index 93fcff7..928b212 100644
--- a/src/rocksdb.rs
+++ b/src/rocksdb.rs
@@ -31,6 +31,7 @@ use rocksdb_options::{Options, WriteOptions};
 pub struct DB {
     inner: rocksdb_ffi::DBInstance,
     cfs: BTreeMap<String, DBCFHandle>,
+    path: String,
 }
 
 unsafe impl Send for DB {}
@@ -375,6 +376,7 @@ impl DB {
         Ok(DB {
             inner: db,
             cfs: cf_map,
+            path: path.to_owned(),
         })
     }
 
@@ -412,6 +414,10 @@ impl DB {
         Ok(())
     }
 
+    pub fn path(&self) -> &str {
+        &self.path
+    }
+
     pub fn write_opt(&self,
                      batch: WriteBatch,
                      writeopts: &WriteOptions)

From 7b2e1b91a7deddcb4095139fc3f278b34b387cd0 Mon Sep 17 00:00:00 2001
From: Karl Hobley <karlhobley10@gmail.com>
Date: Thu, 27 Oct 2016 10:20:24 +0100
Subject: [PATCH 2/2] Implement Debug for DB

---
 src/rocksdb.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/rocksdb.rs b/src/rocksdb.rs
index 928b212..5b1a301 100644
--- a/src/rocksdb.rs
+++ b/src/rocksdb.rs
@@ -22,6 +22,7 @@ use std::ops::Deref;
 use std::path::Path;
 use std::slice;
 use std::str::from_utf8;
+use std::fmt;
 
 use self::libc::size_t;
 
@@ -784,6 +785,12 @@ impl Drop for DB {
     }
 }
 
+impl fmt::Debug for DB {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "RocksDB {{ path: {:?} }}", self.path())
+    }
+}
+
 impl Writable for WriteBatch {
     /// Insert a value into the database under the given key
     fn put(&self, key: &[u8], value: &[u8]) -> Result<(), String> {