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Re: [Discuss-gnuradio] About closing flowgraph automatically
From: |
Marcus Müller |
Subject: |
Re: [Discuss-gnuradio] About closing flowgraph automatically |
Date: |
Sun, 24 Jul 2016 10:55:54 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 |
Hi,
'doh.
Which leaves one to wonder why the finished state never gets checked.
I'll be back after a bit of tracing.
Cheers,
Marcus
On 24.07.2016 08:04, Sylvain Munaut wrote:
> Hi,
>
>> 52 int pdu_to_tagged_stream_impl::calculate_output_stream_length(const
>> gr_vector_int &)
>> 53 {
>> 54 if (d_curr_len == 0) {
>> 55 /* FIXME: This blocking call is far from ideal but is the best
>> we
>> 56 * can do at the moment
>> 57 */
>> 58 pmt::pmt_t msg(delete_head_blocking(PDU_PORT_ID, 100));
>> 59 if (msg.get() == NULL) {
>> 60 return 0;
>> 61 }
> [snip]
>
>> Problem is that if we use the non-blocking call here, the scheduler would
>> have a chance to process the shutdown signal, but it would be constantly
>> asking (spinning) for the output stream length.
>>
>> You could try out what would happen if we'd added a timeout to the blocking
>> cal; that way, you could reduce the spinning, and hopefully get the
>> scheduler to check for "done" messages.
> There _is_ a timeout ... that "100" in there is the # of millisec to
> wait at most.
>
>
> Cheers,
>
> Sylvain
- [Discuss-gnuradio] About closing flowgraph automatically, Simone Ciccia S210664, 2016/07/21
- Re: [Discuss-gnuradio] About closing flowgraph automatically, Martin Braun, 2016/07/22
- Re: [Discuss-gnuradio] About closing flowgraph automatically, Piotr Krysik, 2016/07/23
- Re: [Discuss-gnuradio] About closing flowgraph automatically, Marcus Müller, 2016/07/23
- Re: [Discuss-gnuradio] About closing flowgraph automatically, Piotr Krysik, 2016/07/23
- Re: [Discuss-gnuradio] About closing flowgraph automatically, Marcus Müller, 2016/07/23
- Re: [Discuss-gnuradio] About closing flowgraph automatically, Sylvain Munaut, 2016/07/24
- Re: [Discuss-gnuradio] About closing flowgraph automatically, Simone Ciccia S210664, 2016/07/24
- Re: [Discuss-gnuradio] About closing flowgraph automatically,
Marcus Müller <=
- Re: [Discuss-gnuradio] About closing flowgraph automatically, Marcus Müller, 2016/07/24
- Re: [Discuss-gnuradio] About closing flowgraph automatically, Bastian Bloessl, 2016/07/24
- Re: [Discuss-gnuradio] About closing flowgraph automatically, Marcus Müller, 2016/07/24
- Re: [Discuss-gnuradio] About closing flowgraph automatically, Simone Ciccia S210664, 2016/07/27