Re: Proposal for fixing intra-query memory leaks

On Tue, 2 May 2000, Tom Lane wrote:

> Karel Zak <zakkr@zf.jcu.cz> writes:
> >  The chunk header must be relevant and same for all allocation methods and
> > must be independent on AllocSel (aset.c) code. Now, it is not. Am I right?
> 
> Right.  Actually it would work to have additional data before the
> standard link-to-context-plus-chunk-size fields, if a particular method
> really needed more per-chunk data.  But I doubt we'd ever need that.
The chunk:
 +--------------------+----------------------+-------------------+ | depend-header      | standard-header      |
data.............|  +--------------------+----------------------+-------------------+ ^                    ^
         ^ |                    |                      | |                    |              pointer to chunk  |
           | |          begin of standard chunk header                           |particular method header, begin of
thisheader is unknown for common routines. 
 

IMHO in standard chunk header not must be chunk size. If something needs
chunk size it cat use depend-header. 
It will very nice :-)
                        Karel