Re: [Boost-users] [log] Qt integration

Subject: Re: [Boost-users] [log] Qt integration
From: Olivier Tournaire (olitour_at_[hidden])
Date: 2014-02-18 02:04:15

Thank you. For sure there are a lot of concepts to understand. I might have
miss in my first reading the consume() method for sink backends. Your
message points me the right direction to start.

Regards

Le lundi 17 février 2014, Lindley French <lindleyf_at_[hidden]> a écrit :

> Boost.Log can be a bit overwhelming at first glance. The short version is:
>
> 1) Every log record is associated with a set of attributes. The logged
> message is one of the attributes.
> 2) A logger object (called a "source" in the docs) can be configured to
> attach more attributes to records logged through it.
> 3) A "sink" can be configured to accept records with specified attribute
> conditions. Sinks define logging outputs----files, syslog, QTextEdits, etc.
> 4) Sinks are divided into frontends and backends. The main point of the
> frontend is to provide thread safety for the backend, and generally all you
> need to do is decide if you need thread safety, and if you want to achieve
> it by locking (synchronous_sink) or by running the backend in a background
> thread (asynchronous_sink). The backend is where the actual stuff happens,
> and you would need to write a custom one for a QTextEdit.
>
> You'll also need to read up on filters and formatters, which are
> remarkably easy to specify but might take a few minutes to get your head
> around. Filters determine which records are sent to a given sink, and
> formatters convert the set of attributes in the record into a string for
> output.
>
>
> On Mon, Feb 17, 2014 at 8:05 AM, Olivier Tournaire <olitour_at_[hidden]<javascript:_e(%7B%7D,'cvml','olitour_at_[hidden]');>
> > wrote:
>
>> Thanks Lindley,
>>
>> I am new to boost::log and, even after reading the doc, I am still
>> confused. Could you please help me to start?
>> I really do not understand how to glue a QTextEdit with a custom sink.
>>
>> Regards
>>
>> Le dimanche 16 février 2014, Lindley French <lindleyf_at_[hidden]<javascript:_e(%7B%7D,'cvml','lindleyf_at_[hidden]');>>
>> a écrit :
>>
>> You can create a custom sink backend easily enough in Boost.Log. I don't
>>> know if you can use it with BOOST_LOG_TRIVIAL, though.
>>>
>>>
>>> On Sat, Feb 15, 2014 at 5:58 PM, Olivier Tournaire <olitour_at_[hidden]>wrote:
>>>
>>>> Hi all,
>>>>
>>>> I would like to use boost::log within a Qt based application. For now,
>>>> I simply want to redirect the output of BOOST_LOG_TRIVIAL(xxx) macro to a
>>>> QTextEdit. What is the easiest way to do that?
>>>>
>>>> Is there a way to get the logger output string?
>>>>
>>>> Best regards
>>>>
>>>> _______________________________________________
>>>> Boost-users mailing list
>>>> Boost-users_at_[hidden]
>>>> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>>>>
>>>
>>>
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>
>