Oracle 5.0 Reference Manual page 2575

enum_func_status (*func_mysqlnd_conn__connect)(
MYSQLND *conn, const char *host,
const char * user, const char * passwd,
unsigned int passwd_len, const char * db,
unsigned int db_len, unsigned int port,
const char * socket, unsigned int mysql_flags TSRMLS_DC
);
To get around this problem you will need to make a copy of
for additional parameters. You can do this by creating a set of
macros.
Calling PHP userspace
This code snippet shows the optimized method for calling a userspace function from C:
/* my_mysqlnd_plugin.c */
MYSQLND_METHOD(my_conn_class,connect)(
MYSQLND *conn, const char *host /* ... */ TSRMLS_DC) {
enum_func_status ret = FAIL;
zval * global_user_conn_proxy = fetch_userspace_proxy();
if (global_user_conn_proxy) {
/* call userspace proxy */
ret = MY_ZEND_CALL_METHOD_WRAPPER(global_user_conn_proxy, host, /*...*/);
} else {
/* or original mysqlnd method = do nothing, be transparent */
ret = org_methods.connect(conn, host, user, passwd,
passwd_len, db, db_len, port,
socket, mysql_flags TSRMLS_CC);
}
return ret;
}
Calling userspace: simple arguments
/* my_mysqlnd_plugin.c */
MYSQLND_METHOD(my_conn_class,connect)(
/* ... */, const char *host, /* ...*/) {
/* ... */
if (global_user_conn_proxy) {
/* ... */
zval* zv_host;
MAKE_STD_ZVAL(zv_host);
ZVAL_STRING(zv_host, host, 1);
MY_ZEND_CALL_METHOD_WRAPPER(global_user_conn_proxy, zv_retval, zv_host /*, ...*/);
zval_ptr_dtor(&zv_host);
/* ... */
}
/* ... */
}
Calling userspace: structs as arguments
/* my_mysqlnd_plugin.c */
MYSQLND_METHOD(my_conn_class, connect)(
MYSQLND *conn, /* ...*/) {
/* ... */
if (global_user_conn_proxy) {
/* ... */
zval* zv_conn;
ZEND_REGISTER_RESOURCE(zv_conn, (void *)conn, le_mysqlnd_plugin_conn);
MY_ZEND_CALL_METHOD_WRAPPER(global_user_conn_proxy, zv_retval, zv_conn, zv_host /*, ...*/);
zval_ptr_dtor(&zv_conn);
/* ... */
}
MySQL Native Driver (Mysqlnd)
2555
zend_call_method()
MY_ZEND_CALL_METHOD_WRAPPER
and add a facility