On Thu, May 24, 2012 at 10:50 AM, Harsh Prateek Bora
<ha...@linux.vnet.ibm.com> wrote:
> - fields = [event[0], '%0.3f' % (delta_ns / 1000.0)]
> - for i in xrange(1, len(event)):
> - fields.append('%s=0x%x' % (event[i], rec[i + 1]))
> + if rec[0] == dropped_event_id:
> + fields = ['Dropped_Event', '%0.3f' % (delta_ns / 1000.0)]
> + fields.append('%s=0x%x' % ("dropped_events", rec[2]))
> + else:
Why the special case? Can the dropped event be an event so the normal
code path pretty-prints it?
> + fields = [event.name, '%0.3f' % (delta_ns / 1000.0)]
> + if log_version == 0:
The global log_version variable splits the code. A nice solution is
to encapsulate the format-specific behavior in a SimpleTraceV1 and
SimpleTraceV2 class - both provide the same interface and the code
that calls it doesn't care which exact version is used.
That said I'm happy for us to drop simpletrace v1 pretty-printing
entirely. Users can only generate v2 files with this QEMU binary. If
they want to view old files they also need the old trace-events file -
they might as well use the old simpletrace.py too! Feel free to focus
on v2 only and drop the v1 support, you can add a nice error message
explaining that this file uses the v1 format and should be used with
the script that came with that QEMU binary.
> + for type, name in event.args:
> + fields.append('%s=0x%x' % (name, rec[i + 1]))
> + i += 1
> + elif log_version == 2:
> + for type, name in event.args:
> + if is_string(type):
> + fields.append('%s=%s' % (name, rec[i + 1]))
> + else:
> + fields.append('%s=0x%x' % (name, rec[i + 1]))
> + i += 1
> print ' '.join(fields)
>
> run(Formatter())
> --
> 1.7.1.1
>
>
