From an efficiency perspective, the arguments to Printf will still need
to be evaluated. Some of those arguments touch multiple areas and will
require significant effort to change into a new format, which is
essentially the exact same as we have now.
Was there not a decision to stick with what we have now when this came
up a few weeks ago? Clean and easy to understand over verbose any day of
the week in my view.
Colin
On 12/08/2015 11:52, Tamas Berghammer via lldb-dev wrote:
Hi All,
At the moment logging in LLDB done in the following way:
Log* log = GetLogIfAllCategoriesSet(...);
if (log)
log->Printf(...);
This approach is clean and easy to understand but have the
disadvantage of being a bit verbose. What is the general opinion about
changing it to something like this?
Logger log = GetLogIfAllCategoriesSet(...);
log.Printf(...);
The idea would be to return a new type of object from
GetLogIfAllCategoriesSet with small size (size of a pointer) what will
check if the log category is enabled. From efficiency perspective this
change would have no effect and it will simplify the writing of the
logging statements.
Implementation details:
Logger would just contain a pointer to a Log object and forward all
call to that object if that one isn't null. Additionally it will have
a method to check for nullness of the underlying log object if we want
to do some calculation only if the logging is enabled.
Thanks,
Tamas
P.S.: Other possible simplification in the logging system would be to
use LogIfAllCategoriesSet but it require the specification of the log
channel at each call and have a very minor overhead because of
checking for the enabled log categories at each call.
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