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Adjust streaming ex to use memory channel

trio_memchans
Tyler Goodlet 2019-02-17 10:04:27 -05:00
parent 78ddd33e3a
commit fd4e126e1f
1 changed files with 71 additions and 71 deletions
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README.rst
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@ -371,16 +371,16 @@ and print the results to your screen:
portals.append(portal) portals.append(portal)
q = trio.Queue(500) send_chan, recv_chan = trio.open_memory_channel(500)
async def push_to_q(portal): async def push_to_q(portal):
async for value in await portal.run( async for value in await portal.run(
__name__, 'stream_data', seed=seed __name__, 'stream_data', seed=seed
): ):
# leverage trio's built-in backpressure # leverage trio's built-in backpressure
await q.put(value) await send_chan.send(value)
await q.put(None) await send_chan.send(None)
print(f"FINISHED ITERATING {portal.channel.uid}") print(f"FINISHED ITERATING {portal.channel.uid}")
# spawn 2 trio tasks to collect streams and push to a local queue # spawn 2 trio tasks to collect streams and push to a local queue
@ -389,7 +389,7 @@ and print the results to your screen:
n.start_soon(push_to_q, portal) n.start_soon(push_to_q, portal)
unique_vals = set() unique_vals = set()
async for value in q: async for value in recv_chan:
if value not in unique_vals: if value not in unique_vals:
unique_vals.add(value) unique_vals.add(value)
# yield upwards to the spawning parent actor # yield upwards to the spawning parent actor