Re: [boost] [Stacktrace] review, please stop discussing non-Stacktrace issues

Subject: Re: [boost] [Stacktrace] review, please stop discussing non-Stacktrace issues
From: Antony Polukhin (antoshkka_at_[hidden])
Date: 2016-12-18 11:55:08

2016-12-18 16:56 GMT+03:00 Niall Douglas <s_sourceforge_at_[hidden]>:
<...>
>> > Antony makes the valid point that on Windows there are race problems with
>> > the DbgHelp library, in fact not only is it not async-unsafe, it's also
>> > thread-unsafe.
>>
>> He doesn't use DbgHelp in the Windows backend though, he uses Dbgeng.h. This
>> is not the same thing, I think?
>
> Woohoo!
>
> That is amazing news, and congrats to Antony for getting Dbgeng
> working. Last month when I prereviewed Stacktrace I mentioned that
> DbgHelp was a steaming pile of poo and that I had had much more
> reliable experience with the thoroughly superior Dbgeng. Antony asked
> for some example code because Dbgeng is barely documented, I no
> longer had access to the code I wrote many years ago which used it. I
> tried to cobble something together and I made some progress over what
> Antony had, but I ran out of time due to needing to mind the recent
> new baby. I'm not actually sure what he changed from what I sent him,
> mine and his look very close, I must have missed something very
> small.

I've took Nialls code that uses COM as a base and mixed it with the
code I already had that collects stacktrace without COM and DbgHelp.
Some hammering produced a class that *probably* async-safely collects
stacktrace and can output it using async-unsafe COM.

-- 
Best regards,
Antony Polukhin