How to query odb database

[titan73]

I want to directly query odb database. How can I do that? There is no command for that.
I found some ord::xxx commands by searching the net but there is no proper documentation with all commands.

[titan73]

also found odb::xxx. No documentation either.
Most functions required a self argument.
Tested "::odb::dbBlock_getPowerDomains [::odb::dbBlock]" to get power domains but it crashes.

[titan73]

I got to something using orf and odb to get the created power domains:

foreach pd [::odb::dbBlock_getPowerDomains [::ord::get_db_block]] {
puts "[::odb::dbPowerDomain_getName $pd]"
}

I think I get the idea. A pity it's not documented.

[maliberty]

We use swig on https://github.com/The-OpenROAD-Project/OpenROAD/blob/master/src/odb/include/odb/db.h so the APIs and comments there should be a guide. If you have specific questions please ask.

[titan73]

Ok thanks. It helps. Although not all methods have comments. dbPowerDomain for instance.
How does int& is supposed to be mapped in tcl? Ex: bool getArea(int& x1, int& y1, int& x2, int& y2);

[maliberty]

Some of these methods might need some swig configuration to make them more usable in TCL. I can look at getArea

[maliberty]

I made some improvements for this api in #5323