The LBR$DELETE_DATA routine deletes module data from the library.

    Format

      LBR$DELETE_DATA  library_index, txtrfa [,flags]

1  –  Returns

    OpenVMS usage:cond_value
    type:         longword (unsigned)
    access:       write only
    mechanism:    by value

    Longword condition value. Most utility routines return a
    condition value. Condition values that this routine can return
    are listed under Condition Values Returned.

2  –  Arguments

 library_index

    OpenVMS usage:longword_unsigned
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference
    Library control index returned by the LBR$INI_CONTROL routine.
    The library_index argument is the address of the longword that
    contains the index.

 txtrfa

    OpenVMS usage:vector_longword_unsigned
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference
    Record's file address (RFA) of the module header for the module
    you want to delete. The txtrfa argument is the address of the 2-
    longword array that contains the RFA. You can obtain the RFA of a
    module header by calling LBR$LOOKUP_KEY or LBR$PUT_RECORD.

 flags

    OpenVMS usage:mask_longword
    type:         longword (unsigned)
    access:       read only
    mechanism:    by value
    The contents of the flag are ignored. The purpose of this
    argument is to indicate to this routine that the application
    knows about the new index structure for ELF object and ELF
    shareable image libraries.

3  –  Description

    To delete a library module, first call LBR$DELETE_KEY to delete
    all keys that point to it. If no library index keys are pointing
    to the module header, LBR$DELETE_DATA deletes the module header
    and associated data records; otherwise, this routine returns the
    error LBR$_STILLKEYS.

    Note that other library routines can reuse data blocks that
    contain no data.

4  –  Condition Values Returned

    LBR$_ILLCTL        Specified library control index not valid.
    LBR$_INVRFA        Specified RFA not valid.
    LBR$_LIBNOTOPN     Specified library not open.
    LBR$_STILLKEYS     Keys in other indexes still point to the
                       module header. Therefore, the specified module
                       was not deleted.