from std_memory cimport shared_ptr cdef extern from "rocksdb/cache.h" namespace "rocksdb": cdef cppclass Cache: pass cdef extern shared_ptr[Cache] NewLRUCache(size_t) cdef extern shared_ptr[Cache] NewLRUCache(size_t, int) cdef extern shared_ptr[Cache] NewLRUCache(size_t, int, int)