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Annotation of 42BSD/ingres/source/dbu/purgetup.c, revision 1.1.1.1

1.1       root        1: # include      <ingres.h>
                      2: # include      <access.h>
                      3: # include      <sccs.h>
                      4: 
                      5: SCCSID(@(#)purgetup.c  7.1     2/5/81)
                      6: 
                      7: /*
                      8: **     Remove tuples from the specified system relation.
                      9: **
                     10: **     'Desa' is a descriptor for a system relation and
                     11: **     key[12] and dom[12] are the keys and domain numbers
                     12: **     to match on for the delete.
                     13: **     All the tuples in 'desa' with key1 and key2
                     14: **     are deleted from the relation.
                     15: */
                     16: 
                     17: purgetup(d, key1, dom1, key2, dom2)
                     18: register DESC  *d;
                     19: char           *key1;
                     20: int            dom1;
                     21: char           *key2;
                     22: int            dom2;
                     23: {
                     24:        TID             tid, limtid;
                     25:        register int    i;
                     26:        char            tupkey[MAXTUP], tuple[MAXTUP];
                     27: 
                     28:        setkey(d, tupkey, key1, dom1);
                     29:        setkey(d, tupkey, key2, dom2);
                     30:        if (i = find(d, EXACTKEY, &tid, &limtid, tupkey))
                     31:                syserr("purgetup:find:%d", i);
                     32:        while ((i = get(d, &tid, &limtid, tuple, TRUE)) == 0)
                     33:        {
                     34:                if (kcompare(d, tuple, tupkey) == 0)
                     35:                        if (i = delete(d, &tid))
                     36:                                syserr("attflush: delete %d", i);
                     37:        }
                     38: 
                     39:        if (i < 0)
                     40:                syserr("purgetup:get %.14s:%d", d->reldum.relid, i);
                     41: }

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