clear warnings

cozorocks/bridge/tx.h

@@ -19,15 +19,25 @@ struct TxBridge {
     unique_ptr<OptimisticTransactionOptions> o_tx_opts;
     unique_ptr<TransactionOptions> p_tx_opts;
 
-    TxBridge(OptimisticTransactionDB *odb_) : odb(odb_), tdb(nullptr), w_opts(new WriteOptions),
-                                              r_opts(new ReadOptions),
-                                              o_tx_opts(new OptimisticTransactionOptions), p_tx_opts(nullptr), tx() {
+    TxBridge(OptimisticTransactionDB *odb_) :
+            odb(odb_),
+            tdb(nullptr),
+            tx(),
+            w_opts(new WriteOptions),
+            r_opts(new ReadOptions),
+            o_tx_opts(new OptimisticTransactionOptions),
+            p_tx_opts(nullptr) {
         r_opts->ignore_range_deletions = true;
     }
 
-    TxBridge(TransactionDB *tdb_) : odb(nullptr), tdb(tdb_), w_opts(new WriteOptions), o_tx_opts(nullptr),
-                                    r_opts(new ReadOptions),
-                                    p_tx_opts(new TransactionOptions), tx() {
+    TxBridge(TransactionDB *tdb_) :
+            odb(nullptr),
+            tdb(tdb_),
+            tx(),
+            w_opts(new WriteOptions),
+            r_opts(new ReadOptions),
+            o_tx_opts(nullptr),
+            p_tx_opts(new TransactionOptions) {
         r_opts->ignore_range_deletions = true;
     }
 

cozorocks/src/bridge/db.rs

@@ -1,6 +1,7 @@
 use crate::bridge::ffi::*;
 use crate::bridge::tx::TxBuilder;
 use cxx::*;
+use std::borrow::Cow;
 use std::ptr::null;
 
 #[derive(Default, Debug)]
@@ -107,7 +108,7 @@ impl<'a> DbBuilder<'a> {
         different_bytes_can_be_equal: bool,
     ) -> Self {
         self.opts.comparator_name = name;
-        self.opts.comparator_impl = unsafe { cmp as *const u8 };
+        self.opts.comparator_impl = cmp as *const u8;
         self.opts.comparator_different_bytes_can_be_equal = different_bytes_can_be_equal;
         self
     }
@@ -132,6 +133,9 @@ pub struct RocksDb {
 }
 
 impl RocksDb {
+    pub fn db_path(&self) -> Cow<str> {
+        self.inner.get_db_path().to_string_lossy()
+    }
     pub fn transact(&self) -> TxBuilder {
         TxBuilder {
             inner: self.inner.transact(),
@@ -141,4 +145,3 @@ impl RocksDb {
 
 unsafe impl Send for RocksDb {}
 unsafe impl Sync for RocksDb {}
-

cozorocks/src/bridge/iter.rs

@@ -1,6 +1,5 @@
 use crate::bridge::ffi::*;
 use cxx::UniquePtr;
-use std::os::macos::raw::stat;
 
 pub struct IterBuilder {
     pub(crate) inner: UniquePtr<IterBridge>,