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ben4asterisk at yahoo.com
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 Posted: Thu May 15, 2008 6:05 am Post subject: [asterisk-users] are channel names unique |
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Hello ppl,
Are the channel names generated on 'Dial's supposed to be unique?
I see the channel names repeating on my asterisk box. I just wanted to confirm this.
Can anyone point me to the lines of code where the channel name is generated/calculated? I tried looking, but it looks like quite a big maze.
Regards
- Ben. |
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russell at digium.com
Guest
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| Posted: Thu May 15, 2008 6:46 am Post subject: [asterisk-users] are channel names unique |
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Benjamin Jacob wrote:
| Quote: | Are the channel names generated on 'Dial's supposed to be unique?
I see the channel names repeating on my asterisk box. I just wanted to confirm this.
Can anyone point me to the lines of code where the channel name is generated/calculated? I tried looking, but it looks like quite a big maze.
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Channel names are not guaranteed to be unique at all. However, all channels
have a uniqueid associated with them. You can access it in the dialplan via
${UNIQUEID}.
--
Russell Bryant
Senior Software Engineer
Open Source Team Lead
Digium, Inc. |
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philipp.kempgen at amo...
Guest
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| Posted: Thu May 15, 2008 6:47 am Post subject: [asterisk-users] are channel names unique |
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Benjamin Jacob schrieb:
| Quote: | Can anyone point me to the lines of code where the channel name is generated/calculated? I tried looking, but it looks like quite a big maze.
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ast_channel_alloc() in main/channel.c
---cut---
if (ast_strlen_zero(ast_config_AST_SYSTEM_NAME)) {
ast_string_field_build(tmp, uniqueid, "%li.%d", (long) time(NULL),
ast_atomic_fetchadd_int(&uniqueint, 1));
} else {
ast_string_field_build(tmp, uniqueid, "%s-%li.%d", ast_config_AST_SYSTEM_NAME,
(long) time(NULL), ast_atomic_fetchadd_int(&uniqueint, 1));
}
---cut---
Gr??e,
Philipp Kempgen
--
Asterisk-Tag.org 2008, 26.-27. Mai -> http://www.asterisk-tag.org
amooma GmbH - Bachstr. 126 - 56566 Neuwied -> http://www.amooma.de
Gesch?ftsf?hrer: Stefan Wintermeyer, Handelsregister: Neuwied B14998 |
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philipp.kempgen at amo...
Guest
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| Posted: Thu May 15, 2008 6:52 am Post subject: [asterisk-users] are channel names unique |
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Philipp Kempgen schrieb:
| Quote: | Benjamin Jacob schrieb:
| Quote: | Can anyone point me to the lines of code where the channel name is generated/calculated? I tried looking, but it looks like quite a big maze.
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ast_channel_alloc() in main/channel.c
---cut---
if (ast_strlen_zero(ast_config_AST_SYSTEM_NAME)) {
ast_string_field_build(tmp, uniqueid, "%li.%d", (long) time(NULL),
ast_atomic_fetchadd_int(&uniqueint, 1));
} else {
ast_string_field_build(tmp, uniqueid, "%s-%li.%d", ast_config_AST_SYSTEM_NAME,
(long) time(NULL), ast_atomic_fetchadd_int(&uniqueint, 1));
}
---cut---
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Er, sorry, I thought a bit too far. That is for the UNIQUEID.
Gr??e,
Philipp Kempgen
--
Asterisk-Tag.org 2008, 26.-27. Mai -> http://www.asterisk-tag.org
amooma GmbH - Bachstr. 126 - 56566 Neuwied -> http://www.amooma.de
Gesch?ftsf?hrer: Stefan Wintermeyer, Handelsregister: Neuwied B14998 |
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ben4asterisk at yahoo.com
Guest
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| Posted: Thu May 15, 2008 7:03 am Post subject: [asterisk-users] are channel names unique |
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So I thought!! Thanks guys.
But a query with regards to this :
I need to send hangup commands based on these channel names only. So at any given point of time, for 'n' ongoing calls, will these 'n' channel names be different/ unique?
If not, using AMI, how do we hangup a given channel?
cheers
- Ben.
--- On Thu, 5/15/08, Russell Bryant <russell at digium.com> wrote:
| Quote: | From: Russell Bryant <russell at digium.com>
Subject: Re: [asterisk-users] are channel names unique
To: ben4asterisk at yahoo.com, "Asterisk Users Mailing List - Non-Commercial Discussion" <asterisk-users at lists.digium.com>
Date: Thursday, May 15, 2008, 11:46 AM
Benjamin Jacob wrote:
| Quote: | Are the channel names generated on 'Dial's
|
supposed to be unique?
| Quote: | I see the channel names repeating on my asterisk box.
|
I just wanted to confirm this.
| Quote: | Can anyone point me to the lines of code where the
|
channel name is generated/calculated? I tried looking, but
it looks like quite a big maze.
Channel names are not guaranteed to be unique at all.
However, all channels
have a uniqueid associated with them. You can access it in
the dialplan via
${UNIQUEID}.
--
Russell Bryant
Senior Software Engineer
Open Source Team Lead
Digium, Inc. |
|
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| Back to top |
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russell at digium.com
Guest
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| Posted: Thu May 15, 2008 7:15 am Post subject: [asterisk-users] are channel names unique |
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Benjamin Jacob wrote:
| Quote: | So I thought!! Thanks guys.
But a query with regards to this :
I need to send hangup commands based on these channel names only. So at any given point of time, for 'n' ongoing calls, will these 'n' channel names be different/ unique?
If not, using AMI, how do we hangup a given channel?
|
While channel names are not unique over time, at any given point in time, there
should not be more than 1 channel with the same name.
--
Russell Bryant
Senior Software Engineer
Open Source Team Lead
Digium, Inc. |
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