An error descriptor
The DataBlade API stores information about exceptions and errors in an error descriptor. An error descriptor is an MI_ERROR_DESC structure. It holds information for the MI_Exception and MI_Client_Library_Error event types.
The following table summarizes the memory operations for an error
descriptor.
| Memory duration | Memory operation | Function name |
|---|---|---|
| Current® memory duration | Constructor | mi_error_desc_copy() |
| Current memory duration | Destructor | mi_error_desc_destroy() |
When an MI_Exception or MI_Client_Library_Error event occurs, the DataBlade API invokes the appropriate callback. To this callback, the DataBlade API passes an initialized error descriptor as the third callback argument. The error descriptor contains information about the MI_Exception or MI_Client_Library_Error event. Within the callback, use the accessor functions in Table 1 to obtain the error information from the error descriptor.