start/stop logs by code... is it possible ?

[Michael Karcher]

Am Donnerstag, den 03.07.2008, 01:36 +0200 schrieb Massimo Del Fedele:
> > Try these untested macros:
> > 
> > #define STARTLOG(dbch) ((_wine_dbch_##dbch).flags |= (1 << __WINE_DBCL_TRACE))
> > #define STOPLOG(dbch) ((_wine_dbch_##dbch).flags &= ~(1 << __WINE_DBCL_TRACE))
> > 
> > And then use them like this:
> > void aWineFunction(...)
> > {
> >   .......
> >   STARTLOG(relay)
> >   .......
> >   .......
> >   STOPLOG(relay)
> > 
> >   .......
> > }
> Thanx for the answer !
> What I'm interested for is a trace, not a relay... can it work for 
> traces too ? which would be the syntax then ?

The contents of this mail are also untestet, so beware.

It probably will work even better. You just have to put the channel name
(without quotes, so not as string) as argument to the STARTLOG and
STOPLOG macros. It does not work with relay, because the thunks that
print relay info are built at dll load time, and I don't expect the
TRACE_ON(relay) information to be tested on each function call. If
during DLL load TRACE_ON(relay) is true, this DLL will (during the whole
process lifetime) generate relay info and if TRACE_ON(relay) was of at
that time, no relay-printing thunks are built and it is pointless to
turn it on later.

Regards,
  Michael Karcher