[asterisk-dev] temporary file names for monitor files

[Sherwood McGowan]

Johan Wilfer wrote:
> You also have the -t flag you can add to asterisk at startup to make 
> asterisk record to another directory and then move the file.
> This is not what you ask for but a related function. I've missed this 
> one completely, stumbled on it yesterday.
>
> "Usage: asterisk [OPTIONS]
>    -t              Record soundfiles in /var/tmp and move them where they
>                    belong after they are done"
>
> /Johan
>
> Dmitry Andrianov wrote:
>   
>> As I understand Asterisk writes data to a file as soon as it receives it on the channel. And this means the file will start getting data almost immediately after creation, not when the call is complete.
>>
>> Writing to a .tmp file which is later renamed to a file without .tmp suffix is classic way of solving the problem. A LOT of applications do that. Checking modification time is more like a workaround to me.
>>
>>
>> -----Original Message-----
>> From: asterisk-dev-bounces at lists.digium.com [mailto:asterisk-dev-bounces at lists.digium.com] On Behalf Of Sherwood McGowan
>> Sent: Friday, May 30, 2008 2:49 PM
>> To: Asterisk Developers Mailing List
>> Subject: Re: [asterisk-dev] temporary file names for monitor files
>>
>> Tzafrir Cohen wrote:
>>   
>>     
>>> On Thu, May 29, 2008 at 05:24:48PM -0500, John Lange wrote:
>>>
>>>     
>>>       
>>>> Does it make sense to write a patch for Asterisk so that while a
>>>> recording is in progress, the file has a '.part' extension on the file
>>>> name to differentiate it from files in which recording has finished.
>>>>
>>>> The idea here is that if you want to move your recordings off to another
>>>> place once you have finished you can write a simple "cron" to do it
>>>> without having to worry if the recording has completed or not.
>>>>
>>>> I realize this could be done through dialplan logic but seems to me that
>>>> this is a more logical way to tackle this problem.
>>>>
>>>> Thoughts?
>>>>
>>>>       
>>>>         
>>> Renaming at the end of a call?
>>>
>>> All to similar to the task of the mixmonitor script. Couldn't this be
>>> implemented that way?
>>>
>>>
>>>     
>>>       
>> As I read it (pardon me if I'm misunderstanding your question), he wants
>> the .tmp or .part to be removed from the filename after the file is
>> finished being written to, thereby allowing a simpler method of knowing
>> when the file is completed being written to.
>>
>> I haven't tested in depth, but I believe that the file is created but
>> does not have data in it until after the call is completed, but still we
>> don't want to modify/copy/move the file until after it's finished being
>> written to. Since you're not sure when the file is done being modified
>> by Asterisk, the only thing you can do is check for a modification time
>> that is more than x seconds/minutes in the past and then do what you
>> wish to do to the file.
>>
>> However, your reminder of the mixmonitor script is good, I think I'll
>> take a peek into the code and try to get an idea of two.
>>
>> Sherwood McGowan
>>
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>
>
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>   
Fantastic, I can't believe I missed that option, it's been a while....

Thanks for pointing it out :)

-- 
Sherwood McGowan
VoIP / Telecom Solutions
sherwood.mcgowan at gmail.com