enum net_async_statusmysql_real_query_nonblocking(MYSQL *mysql, const char *stmt_str, unsigned long length)mysql_real_query_nonblocking() is an asynchronous function. It is the counterpart of themysql_real_query() synchronous function, for use by applications that require asynchronous communication with the server. For general information about writing asynchronous C API applications, seeChapter 7,C API Asynchronous Interface.
mysql_real_query_nonblocking() is used similarly tomysql_real_query(). For details about the latter, seeSection 5.4.62, “mysql_real_query()”. The two functions differ as follows:
mysql_real_query()returns an integer status indicator.mysql_real_query_nonblocking()returns anenum net_async_statusstatus indicator.
mysql_real_query_nonblocking() was added in MySQL 8.0.16.
Returns anenum net_async_status value. See the description inSection 7.2, “C API Asynchronous Interface Data Structures”. ANET_ASYNC_ERROR return status indicates an error.