MySQL 8.0 Reference Manual Including MySQL NDB Cluster 8.0 mysql_real_connect_nonblocking()

enum net_async_status mysql_real_connect_nonblocking(MYSQL *mysql, const char *host, const char *user, const char *passwd, const char *db, unsigned int port, const char *unix_socket, unsigned long client_flag)


mysql_real_connect_nonblocking() is an asynchronous function. It is the counterpart of the mysql_real_connect() synchronous function, for use by applications that require asynchronous communication with the server. For general information about writing asynchronous C API applications, see Section 28.7.11, “C API Asynchronous Interface”.

mysql_real_connect_nonblocking() is used similarly to mysql_real_connect(). For details about the latter, see Section, “mysql_real_connect()”. The two functions differ as follows:

mysql_real_connect_nonblocking() was added in MySQL 8.0.16.

Return Values

Returns an enum net_async_status value. See the description in Section 28.7.12, “C API Asynchronous Interface Data Structures”. A NET_ASYNC_ERROR return status indicates an error.


See Section 28.7.11, “C API Asynchronous Interface”.