__iew_fd_set_cursor() – Set cursor value

z/OS MVS Program Management: Advanced Facilities

__iew_fd_set_cursor() – Set cursor value

z/OS MVS Program Management: Advanced Facilities
SA23-1392-00

A cursor contains item number at which fast Ddata should begin processing. It is also updated at the end of a retrieval request so that it acts as a placeholder when all the selected data does not fit in the buffer provided. The cursor value is initially set to zero to tell the fast data to begin with the first item.

The __iew_fd_set_cursor() function sets the cursor value which is stored in a private data associated with the data buffer.

Format

#include <__iew_api.h>
int __iew_fd_set_cursor(_IEWFDContext *__context, 
                                        void **__data_entry,
                                        const char *__class,
                                        int __cursor);

Parameters Descriptions

__context: FD context is created and returned by calling __iew_fd_open() and is used throughout the open session.
__data_entry: returned buffer – based on class name.
__class: class name (binder-defined class).
__cursor: starting position.

Returned Value

If successful, __iew_fd_set_cursor() returns 0.

If unsuccessful, __iew_fd_set_cursor() returns nonzero.

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