asterisk users - Nov 2016 - Non-global variable that follows channel?

Related to
http://lists.digium.com/pipermail/asterisk-users/2016-November/290384.html,
at the moment I'm passing one variable via DIAL.

Now I'd like to pass a whole bunch, and my idea was to rather than
having a great string of

b(synctest3b^setVar^1(something)^2(more things)^3(etc))

and then get them with ARG1..ARGn etc, I could bundle the whole lot
into a HASH and then unbundle them at the called channel.

Passing the HASH as a var isn't working (I wasn't expecting it to!)
but is there any other way of doing this, or is it setVar for each
one?

Hi,

is channel variable inheritance working for your setup?
Passing variables to other channels can normally simply be done by naming the
variable with one or two prefixed undersorces
to make it available to the channel that is created from that one defining the
variable.
But I have no idea if it's getting inherited to Gosub called from a Dial
command...
 -> https://wiki.asterisk.org/wiki/display/AST/Asterisk+13+Application_Set

If that is not working for you, you might use the SHARED() variables which are
kind of global accessible by the channel ID.
So you might call your Gosub with only the (unique) reference name of the
variables you wish to pass and then call it from your Gosub.
 -> https://wiki.asterisk.org/wiki/display/AST/Asterisk+13+Function_SHARED


Greetings,
 Max


Am 23.11.2016 um 13:06 schrieb Jonathan H:
> Related to
http://lists.digium.com/pipermail/asterisk-users/2016-November/290384.html,
> at the moment I'm passing one variable via DIAL.
> 
> Now I'd like to pass a whole bunch, and my idea was to rather than
> having a great string of
> 
> b(synctest3b^setVar^1(something)^2(more things)^3(etc))
> 
> and then get them with ARG1..ARGn etc, I could bundle the whole lot
> into a HASH and then unbundle them at the called channel.
> 
> Passing the HASH as a var isn't working (I wasn't expecting it to!)
> but is there any other way of doing this, or is it setVar for each
> one?
> 
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Thanks, Max.

Yes, of course, you are right, and I am an idiot because I was tired
and putting underscores before the variable name when I read it back!
Then I forgot to post the followup email to say I had figured it out.

Now, this SHARED was not something I was aware of, but looked like an
ideal solution to passing variables BACK from to the parent channel.

However, it does not seem to be very reliable.

Code:

[svtest1]
exten => s,1,Answer()
    same => n,Verbose(1,Answered channel:${CHANNEL})
    same => n,Dial(Local/s at svtest2,,g)
    same => n,Verbose(1,***In channel:${CHANNEL} sharedVar:
${SHARED(sharedVar,Local/s at svtest2)} )
    same => n,Hangup()

[svtest2]
exten => s,1,NoOp()
    same => n,Set(SHARED(sharedVar,Local/s at svtest2)="I have been set
in svtest2")
    same => n,Verbose(1,***In channel:${CHANNEL} sharedVar:
${SHARED(sharedVar,Local/s at svtest2)})
    same => n,Answer()
    same => n,Hangup()


Output, 4 times from console, 4 times from a normal PJSIP dialin:

Of the 8 attempts. in only 3 instances the variable survives the
journey back to the parent channel, and seemingly randomly, too.
Am I using it incorrectly?

CLI> originate local/s at svtest1 application echo
 Answered channel:Local/s at svtest1-00000027;2
 ***In channel:Local/s at svtest2-00000028;2 sharedVar: "I have been set
in svtest2"
 ***In channel:Local/s at svtest1-00000027;2 sharedVar:
CLI> originate local/s at svtest1 application echo
 Answered channel:Local/s at svtest1-00000029;2
 ***In channel:Local/s at svtest2-0000002a;2 sharedVar: "I have been set
in svtest2"
 ***In channel:Local/s at svtest1-00000029;2 sharedVar:
CLI> originate local/s at svtest1 application echo
 Answered channel:Local/s at svtest1-0000002b;2
 ***In channel:Local/s at svtest2-0000002c;2 sharedVar: "I have been set
in svtest2"
 ***In channel:Local/s at svtest1-0000002b;2 sharedVar: "I have been set
in svtest2"
CLI> originate local/s at svtest1 application echo
 Answered channel:Local/s at svtest1-0000002d;2
 ***In channel:Local/s at svtest2-0000002e;2 sharedVar: "I have been set
in svtest2"
 ***In channel:Local/s at svtest1-0000002d;2 sharedVar:
 Answered channel:PJSIP/6001-00000007
 ***In channel:Local/s at svtest2-0000002f;2 sharedVar: "I have been set
in svtest2"
 ***In channel:PJSIP/6001-00000007 sharedVar: "I have been set in
svtest2"
 Answered channel:PJSIP/6001-00000008
 ***In channel:Local/s at svtest2-00000030;2 sharedVar: "I have been set
in svtest2"
 ***In channel:PJSIP/6001-00000008 sharedVar:
 Answered channel:PJSIP/6001-00000009
 ***In channel:Local/s at svtest2-00000031;2 sharedVar: "I have been set
in svtest2"
 ***In channel:PJSIP/6001-00000009 sharedVar:
 Answered channel:PJSIP/6001-0000000a
 ***In channel:Local/s at svtest2-00000032;2 sharedVar: "I have been set
in svtest2"
 ***In channel:PJSIP/6001-0000000a sharedVar: "I have been set in
svtest2"

On 27 November 2016 at 11:39, Max Grobecker
<max.grobecker at ml.grobecker.info> wrote:
> Hi,
>
> is channel variable inheritance working for your setup?
> Passing variables to other channels can normally simply be done by naming
the variable with one or two prefixed undersorces
> to make it available to the channel that is created from that one defining
the variable.
> But I have no idea if it's getting inherited to Gosub called from a
Dial command...
>  ->
https://wiki.asterisk.org/wiki/display/AST/Asterisk+13+Application_Set
>
> If that is not working for you, you might use the SHARED() variables which
are kind of global accessible by the channel ID.
> So you might call your Gosub with only the (unique) reference name of the
variables you wish to pass and then call it from your Gosub.
>  ->
https://wiki.asterisk.org/wiki/display/AST/Asterisk+13+Function_SHARED
>
>
> Greetings,
>  Max
>
>
> Am 23.11.2016 um 13:06 schrieb Jonathan H:
>> Related to
http://lists.digium.com/pipermail/asterisk-users/2016-November/290384.html,
>> at the moment I'm passing one variable via DIAL.
>>
>> Now I'd like to pass a whole bunch, and my idea was to rather than
>> having a great string of
>>
>> b(synctest3b^setVar^1(something)^2(more things)^3(etc))
>>
>> and then get them with ARG1..ARGn etc, I could bundle the whole lot
>> into a HASH and then unbundle them at the called channel.
>>
>> Passing the HASH as a var isn't working (I wasn't expecting it
to!)
>> but is there any other way of doing this, or is it setVar for each
>> one?
>>
>
>
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