add configuration for memtable pool size

Signed-off-by: Little-Wallace <bupt2013211450@gmail.com>

librocksdb_sys/crocksdb/c.cc

@@ -2607,6 +2607,11 @@ void crocksdb_options_set_unordered_write(crocksdb_options_t* opt,
   opt->rep.unordered_write = v;
 }
 
+void crocksdb_options_set_enable_multithread_write(crocksdb_options_t *opt,
+                                                 unsigned char v) {
+  opt->rep.enable_multi_thread_write = v;
+}
+
 void crocksdb_options_set_allow_concurrent_memtable_write(crocksdb_options_t* opt,
                                                          unsigned char v) {
   opt->rep.allow_concurrent_memtable_write = v;

librocksdb_sys/crocksdb/crocksdb/c.h

@@ -1049,6 +1049,9 @@ crocksdb_options_set_enable_pipelined_write(crocksdb_options_t *, unsigned char)
 extern C_ROCKSDB_LIBRARY_API void
 crocksdb_options_set_unordered_write(crocksdb_options_t*, unsigned char);
 extern C_ROCKSDB_LIBRARY_API void
+crocksdb_options_set_enable_multithread_write(crocksdb_options_t *opt,
+                                             unsigned char v);
+extern C_ROCKSDB_LIBRARY_API void
 crocksdb_options_set_allow_concurrent_memtable_write(crocksdb_options_t *,
                                                      unsigned char);
 extern C_ROCKSDB_LIBRARY_API void crocksdb_options_set_manual_wal_flush(

librocksdb_sys/src/lib.rs

@@ -486,6 +486,7 @@ extern "C" {
     pub fn crocksdb_options_set_bytes_per_sync(options: *mut Options, bytes: u64);
     pub fn crocksdb_options_set_enable_pipelined_write(options: *mut Options, v: bool);
     pub fn crocksdb_options_set_unordered_write(options: *mut Options, v: bool);
+    pub fn crocksdb_options_set_enable_multithread_write(options: *mut Options, v: bool);
     pub fn crocksdb_options_set_allow_concurrent_memtable_write(options: *mut Options, v: bool);
     pub fn crocksdb_options_set_manual_wal_flush(options: *mut Options, v: bool);
     pub fn crocksdb_options_optimize_for_point_lookup(

src/rocksdb_options.rs

@@ -1027,6 +1027,11 @@ impl DBOptions {
             crocksdb_ffi::crocksdb_options_set_unordered_write(self.inner, v);
         }
     }
+    pub fn enable_multithread_write(&self, v: bool) {
+       unsafe {
+           crocksdb_ffi::crocksdb_options_set_enable_multithread_write(self.inner, v);
+       }
+    }
 
     pub fn allow_concurrent_memtable_write(&self, v: bool) {
         unsafe {