[asterisk-dev] [Code Review] 3962: CDRs: preserve context/extension when executing a Macro or GoSub

[rmudgett]

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/branches/12/apps/app_stack.c
<https://reviewboard.asterisk.org/r/3962/#comment23725>

    unsigned int for single bit bitfields


- rmudgett


On Sept. 4, 2014, 11:25 a.m., Matt Jordan wrote:
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> https://reviewboard.asterisk.org/r/3962/
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> (Updated Sept. 4, 2014, 11:25 a.m.)
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> 
> Review request for Asterisk Developers.
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> Bugs: ASTERISK-24254
>     https://issues.asterisk.org/jira/browse/ASTERISK-24254
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> Repository: Asterisk
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> Description
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> The context/extension in a CDR is generally considered the destination of a call. When looking at a 2-party call CDR, users will typically be presented with the following:
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> context    exten      channel     dest_channel app  data
> default    1000       SIP/8675309 SIP/1000     Dial SIP/1000,,20
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> However, if the Dial actually takes place in a Macro, the current behaviour in 12 will result in the following CDR:
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> context    exten      channel     dest_channel app  data
> macro-dial s          SIP/8675309 SIP/1000     Dial SIP/1000,,20
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> The same is true of a GoSub:
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> context    exten      channel     dest_channel app  data
> subs       dial_stuff SIP/8675309 SIP/1000     Dial SIP/1000,,20
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> This generally makes the context/exten fields less than useful.
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> It isn't hard to preserve these values in the CDR state machine; however, we need to have something that informs us when a channel is executing a subroutine. Today, there isn't anything that does this.
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> This patch solves this problem by adding a new channel flag, AST_FLAG_SUBROUTINE_EXEC. This flag is set on a channel when it executes a Macro or a GoSub. The CDR engine looks for this value when updating a Party A snapshot; if the flag is present, we don't override the context/exten on the main CDR object. In a funny quirk, executing a hangup handler must *not* abide by this logic, as the endbeforehexten logic assumes that the user wants to see data that occurs in hangup logic, which includes those subroutines. Since those execute outside of a typical Dial operation (and will typically have their own dedicated CDR anyway), this is unlikely to cause any heartburn.
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> Diffs
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>   /branches/12/main/cdr.c 422582 
>   /branches/12/include/asterisk/channel.h 422582 
>   /branches/12/apps/app_stack.c 422582 
>   /branches/12/apps/app_macro.c 422582 
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> Diff: https://reviewboard.asterisk.org/r/3962/diff/
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> Testing
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> All existing CDR tests and the hangup handler tests pass.
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> In addition, a new test has been added on review 3963. This test performs several Dials within a Macro/GoSub, with at least one nested GoSub/Macro/GoSub wrapping a Dial. The CDR entry is verified to have the expected fields.
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> 
> Thanks,
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> Matt Jordan
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>

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