Re: [Boost-users] [boost::logging] flushing rolling_file

From: Benjamin de Dardel (benjamin.dedardel_at_[hidden])
Date: 2007-12-13 11:44:25

Thanks very much, It will be easier to make updates, rather than making 
local changes for each new version of boost::logging !

Benjamin

John Torjo a écrit :
> Hi Benjamin,
>> Hi John, hi all
>>
>> As I don't know how to parameter boost::logging to flush messages in 
>> rolling files, I modify the code as follow.
>>
>> My question is :
>> Is it absolutly necessary to change the code to do that ?
>>
>>   
> I've updated the code.
> So, to manually flush:
>
> rolling_file f(...);
> f.flush();
>
> To automatically flush:
>
> rolling_file f( ...., rolling_file_settings().flush_each_time(true) );
>
> Best,
> John
>> Thanks,
>> Benjamin
>>
>> ///// rolling_file.hpp ///////
>>
>>     void recreate_file() {...
>>                 m_cur_size = 0;
>>      }
>>
>>     template<class msg_type> void write( const msg_type& msg) {
>>         convert_dest::write(msg, (*m_out) );
>>
>>         // flush each time
>>         m_cur_size += msg.size();
>>         m_out->flush();
>>         if ( m_cur_size > m_flags.max_size_bytes()) {
>>             m_cur_idx = (m_cur_idx + 1) % m_flags.file_count();
>>             recreate_file();
>>         }   
>>     }
>>
>>     size_t m_cur_size;
>>
>> //////////////////////////////////////
>>
>>
>> John Torjo a écrit :
>>   
>>> Hi Benjamin,
>>>   
>>>     
>>>> Hi all,
>>>>
>>>>   
>>>>     
>>>>       
>>> Glad you posted this here :)
>>>   
>>>     
>>>> Does anybody use boost::logging ?
>>>>
>>>> I wonder if it's possible to flush logs in a rolling_file as in a 
>>>> standard file (flush_each_time) ?
>>>> It would be nice !
>>>>
>>>>   
>>>>     
>>>>       
>>> Yes it would, and it can ;)
>>>
>>>
>>> Best,
>>> John
>>>
>>>
>>>  
>>>
>>>   
>>>     
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>> Boost-users_at_[hidden] <mailto:Boost-users_at_[hidden]>
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>>
>>   
>
>
> -- 
> http://John.Torjo.com -- C++ expert
> ... call me only if you want things done right
>   
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