[Freeswitch-users] Trouble Getting session:getVariable("state") in Lua

Matt Hunter matt at hellohunter.com
Sat Sep 19 09:41:49 PDT 2009


I think this is probably also the problem that this user on Jira thought was
a bug at
http://jira.freeswitch.org/browse/MODLANG-128

<http://jira.freeswitch.org/browse/MODLANG-128>Anyway, thanks!

I had wanted the state of the channel because after hang-up of a channel
being controlled by a lua script, the script continues executing. My lua
script has a few loops, so if a caller hangups during a loop, the lua script
never exits (gets caught in the loop). So I was trying to get the state
variable to see if the call still exists, and if not exist the loop and
close the lua script.

Is there an easier way that I'm missing to accomplish this?

Also when using onInput and a dtmf_callback within a luascript, you can
interrupt a session:sleep and/or a playmsg, but it seems once the onInput
execution is finished, the sleep and playmsg continue. Is the correct method
to have the onInput return break; to stop the old sleep and playmsg from
Q'ing?

Thanks so much.

--matt

On Sat, Sep 19, 2009 at 10:27 PM, Anthony Minessale <
anthony.minessale at gmail.com> wrote:

> state is not a variable.
> I added a session:getState() for you to trunk but I am not sure why you
> need it.
>
>
> On Sat, Sep 19, 2009 at 9:36 AM, Matthew Fong <mattdfong at gmail.com> wrote:
>
>> I'm having trouble getting the channel variable state in my Lua ivr
>> example.
>> I have tried both
>>
>> session:getVariable("state")
>> session:getVariable("Channel-State")
>> session:getVariable("answer_state")
>> session:getVariable("Answer-State")
>>
>> but lua reports nil for all attempts
>>
>> I did a uuid_dump and it appears normal....and both Channel-State and
>> Answer-State Variables are present...does anyone know why my Lua IVR can not
>> get these channel variables? Thanks
>>
>> --matt
>>
>> uuid_dump:Event-Name: CHANNEL_DATA
>> Core-UUID: ed5556a8-060f-4ce4-85bb-0a70b08120cf
>> FreeSWITCH-Hostname: matthew-laptop
>> FreeSWITCH-IPv4: 192.168.2.2
>> FreeSWITCH-IPv6: %3A%3A1
>> Event-Date-Local: 2009-09-19%2012%3A47%3A20
>> Event-Date-GMT: Sat,%2019%20Sep%202009%2012%3A47%3A20%20GMT
>> Event-Date-Timestamp: 1253364440904749
>> Event-Calling-File: mod_commands.c
>> Event-Calling-Function: uuid_dump_function
>> Event-Calling-Line-Number: 3298
>> Channel-State: CS_EXECUTE
>> Channel-State-Number: 4
>> Channel-Name: sofia/internal/1001
>> Unique-ID: 12ee98af-d76d-483c-b9a9-59e7f08ca4e9
>> Call-Direction: outbound
>> Presence-Call-Direction: outbound
>> Answer-State: answered
>> Channel-Read-Codec-Name: PCMU
>> Channel-Read-Codec-Rate: 8000
>> Channel-Write-Codec-Name: PCMU
>> Channel-Write-Codec-Rate: 8000
>> Caller-Caller-ID-Name: FreeSWITCH
>> Caller-Caller-ID-Number: 0000000000
>> Caller-Network-Addr: 192.168.2.4
>> Caller-Destination-Number: 1001
>> Caller-Unique-ID: 12ee98af-d76d-483c-b9a9-59e7f08ca4e9
>> Caller-Source: src/switch_ivr_originate.c
>> Caller-Context: default
>> Caller-Channel-Name: sofia/internal/1001
>> Caller-Profile-Index: 1
>> Caller-Profile-Created-Time: 1253364439936068
>> Caller-Channel-Created-Time: 1253364439936068
>> Caller-Channel-Answered-Time: 1253364440900612
>> Caller-Channel-Progress-Time: 1253364439976071
>> Caller-Channel-Progress-Media-Time: 0
>> Caller-Channel-Hangup-Time: 0
>> Caller-Channel-Transfer-Time: 0
>> Caller-Screen-Bit: true
>> Caller-Privacy-Hide-Name: false
>> Caller-Privacy-Hide-Number: false
>> variable_channel_name: sofia/internal/1001
>> variable_sip_local_url: 1001%40192.168.2.2
>> variable_sip_destination_url:
>> %22user%22%20%3Csip%3A1001%40192.168.2.4%3A5061%3Bfs_nat%3Dyes%3Bfs_path%3Dsip%253A1001%2540192.168.2.4%253A5061%3E
>> variable_is_outbound: true
>> variable_ignore_early_media: true
>> variable_originate_early_media: false
>> variable_sip_nat_detected: true
>> variable_sofia_profile_name: internal
>> variable_sip_call_id: 690ad846-1fbd-122d-1599-0010c6ceb785
>> variable_sip_reply_host: 192.168.2.4
>> variable_sip_reply_port: 5061
>> variable_sip_user_agent: Linksys/PAP2T-5.1.6(LS)
>> variable_switch_r_sdp:
>> v%3D0%0D%0Ao%3D-%201231630%201231630%20IN%20IP4%20192.168.2.4%0D%0As%3D-%0D%0Ac%3DIN%20IP4%20192.168.2.4%0D%0At%3D0%200%0D%0Am%3Daudio%2016406%20RTP/AVP%200%20100%20101%0D%0Aa%3Drtpmap%3A0%20PCMU/8000%0D%0Aa%3Drtpmap%3A100%20NSE/8000%0D%0Aa%3Dfmtp%3A100%20192-193%0D%0Aa%3Drtpmap%3A101%20telephone-event/8000%0D%0Aa%3Dfmtp%3A101%200-15%0D%0Aa%3Dptime%3A20%0D%0A
>> variable_remote_media_ip: 192.168.2.4
>> variable_remote_media_port: 16406
>> variable_read_codec: PCMU
>> variable_read_rate: 8000
>> variable_write_codec: PCMU
>> variable_write_rate: 8000
>> variable_local_media_ip: 192.168.2.2
>> variable_local_media_port: 20442
>> variable_endpoint_disposition: ANSWER
>> variable_current_application_data: api_epik_pocket.lua
>> variable_current_application: lua
>>
>>
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>>
>
>
> --
> Anthony Minessale II
>
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