[Os-project-managers] Gus summary

[Kipp Martin]

That's fine. I understand. Let me perhaps try to summarize, in the
hopes that this might make it easier for you.

First, the problem is that we need an OSInstance object both in
OSServiceMethods and in OSSolverService (if we want to print
something). We have been making osinstance a data member of
oscommandline, which is available everywhere, and is being passed from
one routine to the next. Since oscommandline also contains an osil
string (along with the name of the OSiL file), this seemed like a
clean extension. (OSOptionsStruc did not contain the osinstance, but
did contain the osil string.)

We populate the osinstance in the oscommandline element in the
nonstandard constructor of OSServiceMethods. There we new an
OSiLReader, read the osil string into the OSiLReader's m_osinstance
element (which is private), and somehow associate it with the
oscommandline object.

I have been doing a shallow copy (duplicating just the pointer), but
that leads to a segfault, because I need to destroy the OSiLReader at
the end of the constructor.

Alternatives are:

1. allocate the OSiLReader in the OSSolverService and pass it around
as an argument of OSServiceMethods
2. make the OSiLReader an element of OSServiceMethods
3. make osilreader->m_osinstance a public member, so that I can NULLify it
4. write a (public) method osilreader->nullifyInstance() that has the
same effect
5. do a deep copy of osinstance

5. is my least favorite method. OSInstance objects are large, and
copying them is going to take lots of time. I think 1. and 2. are the
only real options, but perhaps there is something I have not yet
thought of.

Cheers

gus