There was a problem in my block. I fixed it. I am using gr_block and cosume_each.
Thanks for the help On Sat, Dec 5, 2009 at 8:54 AM, Eric Blossom <e...@comsec.com> wrote: > On Thu, Dec 03, 2009 at 11:16:01AM -0600, Mir M. Ali wrote: > > Hi, > > I developed a gnuradio block that takes 2 inputs. Input_01 is coming from > a > > source that repeats and Input_02 is coming from a source that exhausts > after > > a while. The output should only be generated when there is data on both > the > > input lines. I see in my flowgraph that even when the data on input_02 > > exhausts output is still generated even though I see no problem with my > C++ > > code. Its a simple operation in which for each input in Input_02 line the > > block outputs 'N' items from Input_01. Once, the data source (in this > case > > is a file_source in non-repeat mode) for Input_02 exhausts i.e. the file > is > > read completely the output should stop being generated as there is > nothing > > coming on Input_02. I expect the previous data stored in the buffer for > > Input_02 is flushed by the scheduler after one work() cycle. > > > > Any help would be appreciated. > > Thanks, > > Mir > > GNU Radio does work the way you described. You can confirm this by > doing something like: > > src1 = gr.vector_source_f((1,2,3,4,5,6), False) > src2 = gr.vector_source_f((10,11,12,13,14,15), True) > op = gr.add_ff() > dst = gr.vector_sink_f() > > tb.connect(src1, (op, 0)) > tb.connect(src2, (op, 1)) > tb.connect(op, dst) > > tb.run() > > This will halt. > > There is most likely a problem in your block. If you're subclassing > gr_block, are you calling consume or consume_each? > > > Eric >
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