Re: Method of executing Mauve

[Andy Walter]

Hi Brian,

On Wednesday 06 November 2002 04:48, Brian Jones wrote:

> Someone mentioned they had a method of executing Mauve that would
> appropriately time out and kill the bad VM.  I'm guessing some use of
> expect/tcl here.  If there is an example I could look at that would be
> great.

We use a simple shell script for this.

The relevant part is this:

#!/bin/bash
set -m
${YOUR_VM} ${TEST} || echo "FAIL: execution aborted" &
vm_pid=$!
sleep ${TIMEOUT} && kill -kill $vm_pid 2>/dev/null && echo "Test timed out" &
kill_pid=$!
fg ${YOUR_VM} 2>/dev/null
kill -kill $kill_pid 2>/dev/null && echo Test did not time out


Where TIMEOUT, YOUR_VM and TEST should have reasonable values.
What happens is this: set -m turns on job monitoring (off by default for 
scripts)
The VM runs a test in the background, we remember the PID.
Also in background, we wait for some time, then kill the VM-process and 
remember the PID of the "killer".
Then, we wait for the VM to finish the test.
If the "killer" is still running, we kill it.


As far as I see, this should run with /bin/sh as well, but I didn't test it.

Cheers,

        Andy.

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