[asterisk-dev] Seeking built-in channel waiter function

[Yaroslav Panych]

Ok, then.
What about adding new custom frame type? Like AST_FRAME_MYSUPERFRAME?
Then in my worker thread I will queue it into channel(instead of
signaling sync object), and in channel thread I can use simple
ast_waitfor and analyse returned frame type. How much code I should
change in asterisk to let it to deliver it without any losts?

2011/10/6 Kevin P. Fleming <kpfleming at digium.com>:
> On 10/06/2011 08:27 AM, Yaroslav Panych wrote:
>>
>> Hello
>>
>>
>> Is there available in asterisk core and ready made function which does
>> next work:
>> As arguments it receives struct ast_channel* and thread
>> synchronisation object(semaphore, mutex, cond, etc).
>> This function waits for next frame in channel or when given sync
>> object becomes signalled and then returns.
>
> No, there isn't, mostly because there is no API in the POSIX arsenal that
> could be used to implement it atomically.
>
> --
> Kevin P. Fleming
> Digium, Inc. | Director of Software Technologies
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