Re: [Libevent-users] How to get debug output

[Ralph Castain <rhc@xxxxxxxxxxxx>]

On Oct 12, 2010, at 8:59 AM, Nick Mathewson wrote:

> On Tue, Oct 12, 2010 at 10:55 AM, Ralph Castain <rhc@xxxxxxxxxxxx> wrote:
>> Hi folks
>> 
>> I apologize for the ignorance - I'm sure this is something simple that I'm overlooking.
>> 
>> I built libevent 2.0.7rc with the default configuration, so I did -not- specify --disable-debug. It is my understanding that the debug code is therefore built. I have confirmed that this is the case.
>> 
>> I then have my code call event_enable_debug_mode prior to calling event_init. However, I never get any debug output sent to my screen, even though I confirmed that I am calling event_assign, event_add, and other libevent functions.
>> 
>> Any suggestions on what I'm doing wrong?
>> Ralph
> 
> There are two debugging features here: event debugging mode, and the
> verbose debug logs you're talking about.  Debug mode is a feature for
> debugging your program; it turns on checks for incorrect uses of
> events.  To get debugging output sent to stdout, rebuild with
> "-DUSE_DEBUG" in the CPPFLAGS.

Ouch - ick. It comes out all the time now.

I gather that you only have a compile-time flag to toggle this output? I was hoping for a run-time option. Otherwise, we have to rebuild the system every time we want to debug something, which is an annoyance.


> 
> yrs,
> -- 
> Nick
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