Hi
I wrote a simple source block that reads a string (as a parameter) and
outputs the corresponding array of bytes.
Here is the code:
class myblock(gr.sync_block):
def __init__(self, helloMsg):
gr.sync_block.__init__(self,
name="myblock",
in_sig=None,
out_sig=[numpy.byte])
self.helloMsg = helloMsg
def work(self, input_items, output_items):
out = output_items[0]
test = array.array('B',self.helloMsg)
for j in range(len(test)):
out[j] = test[j]
return len(output_items[0][:len(test)])
In the output I repeatedly get the helloMsg. (it seems that the work()
function is always running)
Is it possible to get in the output my helloMsg only one time (or a
specific amount of times) and then stop the execution of the flowgraph?
Thank you in advance!
Thanasis
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