using os.stat to determine stat.st_blocks on OS that supports it?

[Andrew Steingruebl]

I'm trying to write a disk usage monitoring program.  As part of it, I
need to determine actual file size/disk-blocks-used.

If I read the manuals correctly, the os.stat call, even on OS's that
support extra stat fields, does not return the st_blocks value.

Anyone have any suggestions to figuring out the actual disk usage of a
file?  I'm just going to guess that a program like "du" uses st_blocks.
I don't want to call out to an external program, but obviously the
st_blocks isn't getting returned as one of the fields from a stat.

The OS I'm running on is Solaris-2.7 sparc, but might run the program
elsewhere.  I'm willing to concede that not all OS's have an st_blocks
in their stat struct, but I'd like for it to be returned where it is.


-- 
Andy Steingruebl              | e-mail: steingra at pprd.abbott.com          
Unix Systems Admin/Programmer | phone:  (847) 935-4728                    
Unix/Network Security         | fax:    (847) 935-0142                    
Abbott Laboratories, PPDR&D   | post:   100 Abbott Park Road, D472 - AP9A