Does anyone know of a way, or have a recipe, to do a linux printk equivalent in Python?
I've been googling for a while and not finding anything useful. The nutshell version of this is that I need to write a routine for a test tool I'm working on that will time the amount of time used to take a system and go from Live to Suspended and then from Suspended to Live. I can get all the times I need from the kernel message buffer (via dmesg) but one of the test cases involves doing 30 suspend/resume cycles, so I'll end up having to parse and weed out a lot of redundant data. One idea I had was to just flush the buffer (calling dmesg -c) but that's not the nicest way of doing things on an end user's system. SO, the thought I had was to just inject a marker like "START SUSPEND TEST hash" where hash is a unique identifier for that test run, either the number of the run (1 - 30) or a timestamp or whatever... it just has to be unique and then inject a "FINISHED SUSPEND TEST has" marker after the system is fully live. THEN I could just look for those two markers and parse the data in between them for the timestamps I need. but I can't find any way so far, in python to write kernel messages. Perhaps this is something for ctypes? (though I'm trying to keep from introducing non-python code if at all possible) and I've never used ctypes before and have no real idea how to use them (perhaps this would be a good, easy way to learn?) I'm going to start looking at ctypes after sending this and maybe learn something new today, but I also wanted to ask the list for suggestions as well. Cheers, Jeff And yes, this is not something that would be portable to a non-Linux OS, but that's ok, because this is strictly a Linux tool anyway. -- http://mail.python.org/mailman/listinfo/python-list
