Re: [Jack-Devel] Help! Using pipe() before jack_client_open() makes Jack crazy

i just did that. it runs perfectly.



On Tue, Sep 24, 2013 at 5:25 PM, Yury Alyaev <[hidden]> wrote:

> 25.09.2013 01:17, Paul Davis ÐÉÛÅÔ:
>
>  I know of at least two applications which call pipe(2) before calling
>> jack_client_open(), without issues.
>>
>
> Just try to insert pipe() before jack_client_open in simple_client.c
> program from Jack examples and see what happens. Jack version 0.121.3, if
> it matters.
>
>
>> Whatever the problem is, it isn't what you think it is.
>>
>>
>> On Tue, Sep 24, 2013 at 5:02 PM, Yury Alyaev <[hidden]
>> <mailto:[hidden]>> wrote:
>>
>>     Hello all,
>>
>>     I'am now debugging some application, some times ago working
>>     perfectly with Jack. Now I have found, that if an application calls
>>     pipe() before jack_client_open(), some strange bugs appear. First,
>>     the message "jackd: wait for startup process exit failed" is printed
>>     to a console from which an application was run. Looking at Jack
>>     sources, I've found out, that this is a code of starting jackd. But
>>     it has already started from another console. In general, the
>>     behaviour of an application becomes unpredictable at this point,
>>     including hang-ups and writes of some trash to opened pipes, not
>>     initiated by an application itself. So I have no idea (and nothing
>>     is found in the internet) what is the reason of this thing and what
>>     should I do to avoid it?
>>
>
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