memcached_return memcached_connect(memcached_st *ptr, unsigned int server_key);
memcached_return memcached_response(memcached_st *ptr,
char *buffer, size_t buffer_length,
memcached_return memcached_connect(memcached_st *ptr, unsigned int server_key);
memcached_return memcached_response(memcached_st *ptr,
char *buffer, size_t buffer_length,