[Discuss-gnuradio] call set_output_multiple() on the fly
I am writing a module that might need dynamic change to the block length. So I want to call set_output_multiple(blk_len) when the flow graph is running. Firstly, is this allowed? Secondly, what are the effects? If I have a noutput_items%blk_len==0 checking in work(), will it fail during the transition? Thanks Kyle ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] call set_output_multiple() on the fly
On Thu, Nov 25, 2010 at 11:11:27PM +1100, Kyle Zhou wrote: I am writing a module that might need dynamic change to the block length. So I want to call set_output_multiple(blk_len) when the flow graph is running. Firstly, is this allowed? Secondly, what are the effects? If I have a noutput_items%blk_len==0 checking in work(), will it fail during the transition? Thanks Kyle There is no guarantee that set_output_multiple will work if you change it on the fly. It is possible that you could specify a value for set_output_multiple that would require reallocation of the impacted buffers. We do not do that. Eric ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] call set_output_multiple() on the fly
On 26/11/2010 11:28 AM, Eric Blossom wrote: There is no guarantee that set_output_multiple will work if you change it on the fly. It is possible that you could specify a value for set_output_multiple that would require reallocation of the impacted buffers. We do not do that. Eric Thanks Eric. How about set_relative_rate()? can I call it on the fly? Another question: is it thread safe to modify the module's member variables from outside the work()? Kyle ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] call set_output_multiple() on the fly
On Fri, Nov 26, 2010 at 11:55:50AM +1100, Kyle Zhou wrote: On 26/11/2010 11:28 AM, Eric Blossom wrote: There is no guarantee that set_output_multiple will work if you change it on the fly. It is possible that you could specify a value for set_output_multiple that would require reallocation of the impacted buffers. We do not do that. Eric Thanks Eric. How about set_relative_rate()? can I call it on the fly? Small changes are OK. Large changes have the same problem as set_output_multiple. Another question: is it thread safe to modify the module's member variables from outside the work()? In general no, unless you do something to make it safe yourself. Eric ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
