Home
Extending HCL OneDB™Beyond standard relational database objects, HCL OneDB™ can be extended to handle specialized data types, access methods, routines, and other objects. HCL OneDB™ includes many built-in extensions that are fully integrated in the database server. HCL OneDB™ also provides DataBlade® modules, which are packages of extended database objects for a particular purpose and that are installed separately from the database server. Alternatively, you can create your own user-defined objects for HCL OneDB™.
Creating extensionsYou can create user-defined data types, routines, access methods, and other database objects to suit your needs. You can use application programming interfaces to write user-defined routines and applications that access data in HCL OneDB™ databases.
DataBlade® API Function ReferenceThe HCL OneDB™ DataBlade® API Function Reference describes the DataBlade® API functions and the subset of functions that the DataBlade® API supports.
Function descriptionsThis section gives comprehensive reference information about the functions that are valid within DataBlade® API modules. It lists the function descriptions in alphabetical order, with syntax, usage information, and return values for the functions.
The mi_stream_setpos() functionThe mi_stream_setpos() function sets the stream seek position for the next read or write operation on an open stream.

The mi_stream_setpos() function

The mi_stream_setpos() function sets the stream seek position for the next read or write operation on an open stream.

Syntax

mi_integer mi_stream_setpos(strm_desc, seek_pos)
   MI_STREAM *strm_desc;
   mi_int8 *seek_pos;

strm_desc: A pointer to a stream descriptor for an open stream.
seek_pos: A pointer to the seek position of the stream that the strm_desc stream descriptor references.


Valid in client LIBMI application?	Valid in user-defined routine?
No	Yes

Important: Enterprise Replication does not support this function.

Usage

The mi_stream_setpos() function uses the seek_pos argument to determine the new seek position of the stream that strm_desc references. This stream seek position is the offset for the next read or write operation on the stream.

Return values

MI_OK: The new stream seek position has been set to seek_pos.
MI_STREAM_EBADARG: The stream descriptor that strm_desc references or the seek_pos value is invalid, or that the specified seek position is past the end of the data.
MI_STREAM_ENIMPL: The stream class does not implement the seek position.
MI_ERROR: The function was not successful.