fix memtable_factory crash

rocksdb/_rocksdb.pyx

@@ -1094,6 +1094,18 @@ cdef class Options(object):
         #  def __set__(self, value):
             #  self.opts.allow_os_buffer = value
 
+    property enable_write_thread_adaptive_yield:
+        def __get__(self):
+            return self.opts.enable_write_thread_adaptive_yield
+        def __set__(self, value):
+            self.opts.enable_write_thread_adaptive_yield = value
+
+    property allow_concurrent_memtable_write:
+        def __get__(self):
+            return self.opts.allow_concurrent_memtable_write
+        def __set__(self, value):
+            self.opts.allow_concurrent_memtable_write = value
+
     property allow_mmap_reads:
         def __get__(self):
             return self.opts.allow_mmap_reads

rocksdb/options.pxd

@@ -130,6 +130,8 @@ cdef extern from "rocksdb/options.h" namespace "rocksdb":
         # TODO: remove options source_compaction_factor, max_grandparent_overlap_bytes and expanded_compaction_factor from document
         uint64_t max_compaction_bytes
         CompressionOptions compression_opts
+        cpp_bool allow_concurrent_memtable_write
+        cpp_bool enable_write_thread_adaptive_yield
 
     cdef cppclass WriteOptions:
         cpp_bool sync

rocksdb/tests/test_options.py

@@ -46,6 +46,18 @@ class TestOptions(unittest.TestCase):
         opts.compaction_pri = rocksdb.CompactionPri.min_overlapping_ratio
         self.assertEqual(opts.compaction_pri, rocksdb.CompactionPri.min_overlapping_ratio)
 
+    def test_enable_write_thread_adaptive_yield(self):
+        opts = rocksdb.Options()
+        self.assertEqual(opts.enable_write_thread_adaptive_yield, True)
+        opts.enable_write_thread_adaptive_yield = False
+        self.assertEqual(opts.enable_write_thread_adaptive_yield, False)
+
+    def test_allow_concurrent_memtable_write(self):
+        opts = rocksdb.Options()
+        self.assertEqual(opts.allow_concurrent_memtable_write, True)
+        opts.allow_concurrent_memtable_write = False
+        self.assertEqual(opts.allow_concurrent_memtable_write, False)
+
     def test_compression_opts(self):
         opts = rocksdb.Options()
         compression_opts = opts.compression_opts