[asterisk-r2] ChanIsAvail locking R2 channel

[Melcon Moraes]

Just for the sake of curiosity, why exactly ChanIsAvail() is needed?

-
MM

On Fri, Aug 21, 2009 at 2:00 AM, Moises Silva <moises.silva at gmail.com>wrote:

> I just uploaded a new patch for Asterisk:
> http://openr2.googlecode.com/files/openr2-asterisk-1.4.26.1.patch
> The patch should fix the issue with CHANISAVAIL, however I have not tested
> it myself. Please test asap so I can upload a new one if the issue is still
> present.
>
> The issue was fixed as well in Asterisk trunk and Asterisk 1.6.2 branch
> (which soon will have a new beta out).
>
> OpenR2 1.2.0 will be released this weekend.
>
>
> On Wed, Aug 19, 2009 at 10:59 AM, Moises Silva <moises.silva at gmail.com>wrote:
>
>> Hello Rafael,
>> I think it's a bug in chan_dahdi.c, I have not tested but checking what
>> application CHANISAVAIL does, the code path seems like unexpected, when
>> ast_request() is called I set mfcr2call=1 to reserve the channel, but in
>> ast_hangup() I do not set mfcr2call=0 because the usual code path is
>> ast_request() -> ast_call() -> ast_hangup() and at that point openr2
>> callbacks will report call end and I will set mfcr2call=0, but when just
>> checking if the channel is avail, the call is never initiated and the
>> mfcr2call=1 flag keeps set after ast_hangup().
>>
>> This bug will be present in all patches for Asterisk and 1.6.2 as well. I
>> will fix it tonight (or sooner if I have a chance) for 1.6.2, and create a
>> new patch for 1.4 probably the weekend, or sooner if I can.
>>
>>
>> On Wed, Aug 19, 2009 at 2:09 AM, Rafael Prado Rocchi <
>> prado at practis.com.br> wrote:
>>
>>> Hi,
>>> We are having problems with chanisavail.
>>>
>>> Everytime we use chanisavail to check for channel availability, when
>>> using R2, the channel gets locked.
>>> We tested with 1.4.22, 1.4.24 and 1.4.26, using OpenR2 release 209.
>>>
>>> Chanisavail works fine if the E1 is ISDN
>>> But chanisavail gives error and locks the channel if we configure the E1
>>> as R2. Next run, it locks the second available channel and so, until we get
>>> all 30 channels locked. Then we have to restart.
>>>
>>>
>>> All other applications and the asterisk itself is working fine with R2
>>>
>>>
>>>
>>> Can anyone please test this and confirm this problem?
>>>
>>>
>>>
>>> Here is a simple dialplan for testing:
>>>
>>>
>>> exten => 123,1,noop( ---- TESTE CHANISVAIL ---- )
>>> exten => 123,n,CHANISAVAIL(dahdi/g1)
>>> exten => 123,n,NOOP(CHAN=${AVAILCHAN})
>>> exten => 123,n,SET(CHAN=${CUT(AVAILCHAN||1)})
>>> exten => 123,n,DIAL(${CHAN}/1234)
>>> exten => 123,n,NOOP( STATUS = ${DIALSTATUS})
>>>
>>>
>>>
>>> Thanks in advance,
>>>
>>> Rafael Prado
>>>
>>>
>>> PRACTIS - Comunicação & Tecnologia
>>> Av Aquidaban, 766 - Conj 51
>>> CEP 13026-510, Campinas/SP - Brasil
>>> http://www.practis.com.br
>>>
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>>
>>
>>
>>
>> --
>> Moises Silva
>> Software Developer
>> Sangoma Technologies Inc. | 50 McIntosh Drive, Suite 120, Markham ON L3R
>> 9T3 Canada
>> t. 1 905 474 1990 x 128 | e. moy at sangoma.com
>>
>
>
>
> --
> Moises Silva
> Software Developer
> Sangoma Technologies Inc. | 50 McIntosh Drive, Suite 120, Markham ON L3R
> 9T3 Canada
> t. 1 905 474 1990 x 128 | e. moy at sangoma.com
>
> _______________________________________________
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