DataBlade API Programmer's Manual

DataBlade API Programmer's Manual
Chapter 12: DataBlade API Function Descriptions

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mi_default_callback()

The mi_default_callback() function is the default callback for all callbacks in a client application.

Syntax

void mi_default_callback(et, conn, cb_data)

		MI_EVENT_TYPE et;

		MI_CONNECTION *conn;

		void *cb_data;

		void *user_data; 


et
is the event type to be handled by the callback.

conn
is the connection descriptor established by a previous call to mi_open() or mi_server_connect().

cb_data
is a pointer to the data-type-specific structure for the callback.







 



Valid in Client Application?

Valid in Server Routine?

Yes
No

Usage

The mi_default_callback() function returns appropriate error and warning messages to stderr (or in a message box under Windows NT) in response to callback events. This default is overridden when the application calls mi_register_callback() to register its own callback for a particular event type or for all event types.

Important: When a client application connects to a database server, the mi_default_callback() function does not report some warnings. The SQLSTATE values for these warnings begin with 01I.

A client application can use mi_default_callback() for its own use. For example, an application can call a special handler for a specific function and then re-register mi_default_callback() after the function returns.

Return Values

None.

DataBlade API Programmer's ManualChapter 12: DataBlade API Function Descriptions Home Contents Index Master Index New Book

mi_default_callback()

Syntax

Usage

Return Values

Related Topics

DataBlade API Programmer's Manual
Chapter 12: DataBlade API Function Descriptions

Home Contents Index Master Index New Book