Release 0.17.0 (#539)v0.17.0

11 files changed, 75 insertions, 83 deletions

diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index a21299f..07311fb 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -41,7 +41,7 @@ jobs:
         uses: actions-rs/clippy-check@v1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-          args: -- -D warnings
+          args: --all-targets -- -D warnings
 
   audit:
     name: Security audit
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 14cf0d0..2c3b56c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,12 +2,20 @@
 
 ## [Unreleased]
 
+## 0.17.0 (2021-07-22)
+
+* Fix `multi_get` method (mikhailOK)
 * Bump `librocksdb-sys` up to 6.19.3 (olegnn)
-* Make SSE inclusion conditional for target features.
-  RocksDB is not compiled with SSE4 instructions anymore unless the corresponding features are enabled in rustc (mbargull)
+* Add support for the cuckoo table format (rbost)
+* RocksDB is not compiled with SSE4 instructions anymore unless the corresponding features are enabled in rustc (mbargull)
 * Bump `librocksdb-sys` up to 6.20.3 (olegnn, akrylysov)
 * Add `DB::key_may_exist_cf_opt` method (stanislav-tkach)
 * Add `Options::set_zstd_max_train_bytes` method (stanislav-tkach)
+* Mark Cache and Env as Send and Sync (akrylysov)  
+* Allow cloning the Cache and Env (duarten)
+* Make SSE inclusion conditional for target features (mbargull)  
+* Use Self where possible (adamnemecek)  
+* Don't leak dropped column families (ryoqun)
 
 ## 0.16.0 (2021-04-18)
 
diff --git a/Cargo.toml b/Cargo.toml
index 721d6a1..7a5b880 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,9 +28,11 @@ multi-threaded-cf = []
 
 [dependencies]
 libc = "0.2"
-librocksdb-sys = { path = "librocksdb-sys", version = "6.19.3" }
+librocksdb-sys = { path = "librocksdb-sys", version = "6.20.3" }
 
 [dev-dependencies]
 trybuild = "1.0"
 tempfile = "3.1"
 pretty_assertions = "0.7"
+bincode = "1.3"
+serde = { version = "1", features = [ "derive" ] }
\ No newline at end of file
diff --git a/librocksdb-sys/Cargo.toml b/librocksdb-sys/Cargo.toml
index 672c060..06f2012 100644
--- a/librocksdb-sys/Cargo.toml
+++ b/librocksdb-sys/Cargo.toml
@@ -29,5 +29,5 @@ uuid = { version = "0.8", features = ["v4"] }
 
 [build-dependencies]
 cc = { version = "1.0", features = ["parallel"] }
-bindgen = { version = "0.58.1", default-features = false, features = ["runtime"] }
+bindgen = { version = "0.59", default-features = false, features = ["runtime"] }
 glob = "0.3"
diff --git a/src/column_family.rs b/src/column_family.rs
index 3184c65..1cde254 100644
--- a/src/column_family.rs
+++ b/src/column_family.rs
@@ -130,7 +130,7 @@ impl<'a> AsColumnFamilyRef for &'a ColumnFamily {
 }
 
 // Only implement for Arc-ed BoundColumnFamily as this tightly coupled and
-// implmetation detail, considering use of std::mem::transmute. BoundColumnFamily
+// implementation detail, considering use of std::mem::transmute. BoundColumnFamily
 // isn't expected to be used as naked.
 // Also, ColumnFamilyRef might not be Arc<BoundColumnFamily<'a>> depending crate
 // feature flags so, we can't use the type alias here.
diff --git a/src/compaction_filter.rs b/src/compaction_filter.rs
index 3e82730..2680408 100644
--- a/src/compaction_filter.rs
+++ b/src/compaction_filter.rs
@@ -49,7 +49,7 @@ pub trait CompactionFilter {
     ///
     /// Note that RocksDB snapshots (i.e. call GetSnapshot() API on a
     /// DB* object) will not guarantee to preserve the state of the DB with
-    /// CompactionFilter. Data seen from a snapshot might disppear after a
+    /// CompactionFilter. Data seen from a snapshot might disappear after a
     /// compaction finishes. If you use snapshots, think twice about whether you
     /// want to use compaction filter and whether you are using it in a safe way.
     ///
@@ -158,15 +158,15 @@ fn test_filter(level: u32, key: &[u8], value: &[u8]) -> Decision {
 fn compaction_filter_test() {
     use crate::{Options, DB};
 
-    let path = "_rust_rocksdb_filtertest";
+    let path = "_rust_rocksdb_filter_test";
     let mut opts = Options::default();
     opts.create_if_missing(true);
     opts.set_compaction_filter("test", test_filter);
     {
         let db = DB::open(&opts, path).unwrap();
-        let _ = db.put(b"k1", b"a");
-        let _ = db.put(b"_k", b"b");
-        let _ = db.put(b"%k", b"c");
+        let _r = db.put(b"k1", b"a");
+        let _r = db.put(b"_k", b"b");
+        let _r = db.put(b"%k", b"c");
         db.compact_range(None::<&[u8]>, None::<&[u8]>);
         assert_eq!(&*db.get(b"k1").unwrap().unwrap(), b"a");
         assert!(db.get(b"_k").unwrap().is_none());
diff --git a/src/compaction_filter_factory.rs b/src/compaction_filter_factory.rs
index 1e3159c..5b144d0 100644
--- a/src/compaction_filter_factory.rs
+++ b/src/compaction_filter_factory.rs
@@ -122,15 +122,15 @@ mod tests {
 
     #[test]
     fn compaction_filter_factory_test() {
-        let path = "_rust_rocksdb_filterfactorytest";
+        let path = "_rust_rocksdb_filter_factory_test";
         let mut opts = Options::default();
         opts.create_if_missing(true);
         opts.set_compaction_filter_factory(TestFactory(CString::new("TestFactory").unwrap()));
         {
             let db = DB::open(&opts, path).unwrap();
-            let _ = db.put(b"k1", b"a");
-            let _ = db.put(b"_k", b"b");
-            let _ = db.put(b"%k", b"c");
+            let _r = db.put(b"k1", b"a");
+            let _r = db.put(b"_rk", b"b");
+            let _r = db.put(b"%k", b"c");
             db.compact_range(None::<&[u8]>, None::<&[u8]>);
             assert_eq!(db.get(b"%k1").unwrap(), None);
         }
diff --git a/src/db.rs b/src/db.rs
index 1890d8f..789129f 100644
--- a/src/db.rs
+++ b/src/db.rs
@@ -184,7 +184,7 @@ impl<T: ThreadMode> DBAccess for DBWithThreadMode<T> {
 /// Even with [`SingleThreaded`], almost all of RocksDB operations is
 /// multi-threaded unless the underlying RocksDB instance is
 /// specifically configured otherwise. `SingleThreaded` only forces
-/// serialization of column family alternations by requring `&mut self` of DB
+/// serialization of column family alternations by requiring `&mut self` of DB
 /// instance due to its wrapper implementation details.
 ///
 /// # Multi-threaded mode
@@ -1779,7 +1779,7 @@ impl DBWithThreadMode<SingleThreaded> {
     }
 
     /// Returns the underlying column family handle
-    pub fn cf_handle<'a>(&'a self, name: &str) -> Option<&'a ColumnFamily> {
+    pub fn cf_handle(&self, name: &str) -> Option<&ColumnFamily> {
         self.cfs.cfs.get(name)
     }
 }
diff --git a/src/db_iterator.rs b/src/db_iterator.rs
index 5027aeb..bc8e22e 100644
--- a/src/db_iterator.rs
+++ b/src/db_iterator.rs
@@ -471,7 +471,7 @@ impl<'a, D: DBAccess> Iterator for DBIteratorWithThreadMode<'a, D> {
         }
 
         if self.raw.valid() {
-            // .key() and .value() only ever return None if valid == false, which we've just cheked
+            // .key() and .value() only ever return None if valid == false, which we've just checked
             Some((
                 Box::from(self.raw.key().unwrap()),
                 Box::from(self.raw.value().unwrap()),
diff --git a/tests/test_db.rs b/tests/test_db.rs
index 0504475..8f229ec 100644
--- a/tests/test_db.rs
+++ b/tests/test_db.rs
@@ -72,9 +72,9 @@ fn errors_do_stuff() {
     match DB::destroy(&opts, &path) {
         Err(s) => {
             let message = s.to_string();
-            assert!(message.find("IO error:").is_some());
-            assert!(message.find("_rust_rocksdb_error").is_some());
-            assert!(message.find("/LOCK:").is_some());
+            assert!(message.contains("IO error:"));
+            assert!(message.contains("_rust_rocksdb_error"));
+            assert!(message.contains("/LOCK:"));
         }
         Ok(_) => panic!("should fail"),
     }
@@ -680,9 +680,10 @@ fn env_and_dbpaths_test() {
         }
 
         {
-            let mut paths = Vec::new();
-            paths.push(rocksdb::DBPath::new(&path1, 20 << 20).unwrap());
-            paths.push(rocksdb::DBPath::new(&path2, 30 << 20).unwrap());
+            let paths = vec![
+                rocksdb::DBPath::new(&path1, 20 << 20).unwrap(),
+                rocksdb::DBPath::new(&path2, 30 << 20).unwrap(),
+            ];
             opts.set_db_paths(&paths);
         }
 
diff --git a/tests/test_merge_operator.rs b/tests/test_merge_operator.rs
index 021eb2a..7ba2fbd 100644
--- a/tests/test_merge_operator.rs
+++ b/tests/test_merge_operator.rs
@@ -15,9 +15,8 @@
 mod util;
 
 use pretty_assertions::assert_eq;
-
-use rocksdb::merge_operator::MergeFn;
-use rocksdb::{DBCompactionStyle, MergeOperands, Options, DB};
+use rocksdb::{merge_operator::MergeFn, DBCompactionStyle, MergeOperands, Options, DB};
+use serde::{Deserialize, Serialize};
 use util::DBPath;
 
 fn test_provided_merge(
@@ -77,26 +76,7 @@ fn merge_test() {
     assert!(db.get(b"k1").unwrap().is_none());
 }
 
-unsafe fn to_slice<T: Sized>(p: &T) -> &[u8] {
-    ::std::slice::from_raw_parts((p as *const T) as *const u8, ::std::mem::size_of::<T>())
-}
-
-fn from_slice<T: Sized>(s: &[u8]) -> Option<&T> {
-    if std::mem::size_of::<T>() == s.len() {
-        unsafe { Some(&*(s.as_ptr() as *const T)) }
-    } else {
-        println!(
-            "slice {:?} is len {}, but T is size {}",
-            s,
-            s.len(),
-            std::mem::size_of::<T>()
-        );
-        None
-    }
-}
-
-#[repr(packed)]
-#[derive(Copy, Clone, Debug, Default)]
+#[derive(Serialize, Deserialize, Copy, Clone, Debug, Default)]
 struct ValueCounts {
     num_a: u32,
     num_b: u32,
@@ -104,6 +84,16 @@ struct ValueCounts {
     num_d: u32,
 }
 
+impl ValueCounts {
+    fn from_slice(slice: &[u8]) -> Option<Self> {
+        bincode::deserialize::<Self>(slice).ok()
+    }
+
+    fn as_bytes(&self) -> Option<Vec<u8>> {
+        bincode::serialize(self).ok()
+    }
+}
+
 fn test_counting_partial_merge(
     _new_key: &[u8],
     _existing_val: Option<&[u8]>,
@@ -124,11 +114,10 @@ fn test_counting_full_merge(
     existing_val: Option<&[u8]>,
     operands: &mut MergeOperands,
 ) -> Option<Vec<u8>> {
-    let mut counts = if let Some(v) = existing_val {
-        *from_slice::<ValueCounts>(v).unwrap_or(&ValueCounts::default())
-    } else {
-        ValueCounts::default()
-    };
+    let mut counts = existing_val
+        .map(|v| ValueCounts::from_slice(v))
+        .flatten()
+        .unwrap_or_default();
 
     for op in operands {
         for e in op {
@@ -141,15 +130,13 @@ fn test_counting_full_merge(
             }
         }
     }
-    let slc = unsafe { to_slice(&counts) };
-    Some(slc.to_vec())
+
+    counts.as_bytes()
 }
 
 #[test]
-#[allow(clippy::too_many_lines)]
 fn counting_merge_test() {
-    use std::sync::Arc;
-    use std::thread;
+    use std::{sync::Arc, thread};
 
     let db_path = DBPath::new("_rust_rocksdb_partial_merge_test");
     let mut opts = Options::default();
@@ -234,35 +221,29 @@ fn counting_merge_test() {
         }
     });
     let m = db.merge(b"k1", b"b");
+
     assert!(m.is_ok());
     h3.join().unwrap();
     h1.join().unwrap();
-    match db.get(b"k2") {
-        Ok(Some(value)) => match from_slice::<ValueCounts>(&*value) {
-            Some(v) => unsafe {
-                assert_eq!(v.num_a, 1000);
-                assert_eq!(v.num_b, 500);
-                assert_eq!(v.num_c, 2000);
-                assert_eq!(v.num_d, 500);
-            },
-            None => panic!("Failed to get ValueCounts from db"),
-        },
-        Err(e) => panic!("error reading value {:?}", e),
-        _ => panic!("value not present"),
-    }
-    match db.get(b"k1") {
-        Ok(Some(value)) => match from_slice::<ValueCounts>(&*value) {
-            Some(v) => unsafe {
-                assert_eq!(v.num_a, 3);
-                assert_eq!(v.num_b, 2);
-                assert_eq!(v.num_c, 0);
-                assert_eq!(v.num_d, 1);
-            },
-            None => panic!("Failed to get ValueCounts from db"),
-        },
+
+    let value_getter = |key| match db.get(key) {
+        Ok(Some(value)) => ValueCounts::from_slice(&value)
+            .map_or_else(|| panic!("unable to create ValueCounts from bytes"), |v| v),
+        Ok(None) => panic!("value not present"),
         Err(e) => panic!("error reading value {:?}", e),
-        _ => panic!("value not present"),
-    }
+    };
+
+    let counts = value_getter(b"k2");
+    assert_eq!(counts.num_a, 1000);
+    assert_eq!(counts.num_b, 500);
+    assert_eq!(counts.num_c, 2000);
+    assert_eq!(counts.num_d, 500);
+
+    let counts = value_getter(b"k1");
+    assert_eq!(counts.num_a, 3);
+    assert_eq!(counts.num_b, 2);
+    assert_eq!(counts.num_c, 0);
+    assert_eq!(counts.num_d, 1);
 }
 
 #[test]
@@ -311,7 +292,7 @@ fn make_merge_max_with_limit(limit: u64) -> impl MergeFn + Clone {
 #[test]
 fn test_merge_state() {
     use {Options, DB};
-    let path = "_rust_rocksdb_mergetest_state";
+    let path = "_rust_rocksdb_merge_test_state";
     let mut opts = Options::default();
     opts.create_if_missing(true);
     opts.set_merge_operator_associative("max-limit-12", make_merge_max_with_limit(12));