[HACKERS] PostgreSQL 8.3 index page count clarification

[Srinivas Karthik V]

Hi,
       For the user created indexes in PostgreSQL 8.3.6, I would like to
know which file or function populates the index data structure.
Specifically, where in the code is index->tuples and index->pages values
are fetched and updated.

Regards and Thanks in Advance,
Srinivas Karthik