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Annotation of 43BSDReno/contrib/isode-beta/psap/pe_alloc.c, revision 1.1.1.1

1.1       root        1: /* pe_alloc.c - allocate a presentation element */
                      2: 
                      3: #ifndef        lint
                      4: static char *rcsid = "$Header: /f/osi/psap/RCS/pe_alloc.c,v 7.0 89/11/23 22:13:00 mrose Rel $";
                      5: #endif
                      6: 
                      7: /* 
                      8:  * $Header: /f/osi/psap/RCS/pe_alloc.c,v 7.0 89/11/23 22:13:00 mrose Rel $
                      9:  *
                     10:  *
                     11:  * $Log:       pe_alloc.c,v $
                     12:  * Revision 7.0  89/11/23  22:13:00  mrose
                     13:  * Release 6.0
                     14:  * 
                     15:  */
                     16: 
                     17: /*
                     18:  *                               NOTICE
                     19:  *
                     20:  *    Acquisition, use, and distribution of this module and related
                     21:  *    materials are subject to the restrictions of a license agreement.
                     22:  *    Consult the Preface in the User's Manual for the full terms of
                     23:  *    this agreement.
                     24:  *
                     25:  */
                     26: 
                     27: 
                     28: /* LINTLIBRARY */
                     29: 
                     30: #include <stdio.h>
                     31: #include "psap.h"
                     32: 
                     33: 
                     34: /* A Presentation Element (or PElement) is an internal representation for
                     35:    a presentation type from ISO8825.  The fields of the structure are:
                     36: 
                     37:        pe_class:       UNIVersal, APPLication, CONText, or PRIVate
                     38:        pe_form:        PRIMative, CONStructor, InlineCONStructor
                     39:        pe_id:          identifier
                     40: 
                     41:        pe_len:         if a PRIMative, then the length of pe_prim,
                     42:                        else a scratch value; "indefinite" length elements
                     43:                        have a pe_len of -1 (PE_LEN_INDF)
                     44:        pe_ilen:        if an InlineCONStructor, then the offset to the real
                     45:                        data portion
                     46: 
                     47:        pe_prim:        if a PRIMative or an Inline CONStructor, the
                     48:                        byte-string
                     49:        pe_cons:        if a CONStructor, the first element in the
                     50:                        singly-linked list of elements
                     51: 
                     52:        pe_next:        if the immediate parent is a constructor, the
                     53:                        next element in the singly-linked list of elements
                     54: 
                     55:        pe_cardinal:    if a LIST (SET or SEQ CONStructor), the cardinality
                     56:                        of the list
                     57:        pe_offset:      if a member of a SEQ LIST, the offset in the SEQUENCE
                     58: 
                     59:        pe_nbits:       if a BITSTRING, the number of bits in the string
                     60: 
                     61:        pe_refcnt:      a hack for ANYs in pepy
                     62:  */
                     63: 
                     64: /*  */
                     65: 
                     66: PE     pe_alloc (class, form, id)
                     67: PElementClass class;
                     68: PElementForm  form;
                     69: PElementID id;
                     70: {
                     71:     register PE            pe;
                     72: 
                     73:     if ((pe = (PE) calloc (1, sizeof *pe)) == NULLPE)
                     74:        return NULLPE;
                     75: 
                     76:     pe -> pe_class = class;
                     77:     pe -> pe_form = form;
                     78:     pe -> pe_id = id;
                     79: 
                     80:     return pe;
                     81: }

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