Always do symbol unsubscribe on teardown
Tyler Goodlet
parent
73eedfd7b3
commit
f4a91a4975
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@ -391,74 +391,77 @@ async def _async_main(name, portal, tickers, brokermod, rate):
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"piker.brokers.core", 'start_quote_stream',
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broker=brokermod.name, tickers=tickers)
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async with trio.open_nursery() as nursery:
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# get first quotes response
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log.debug("Waiting on first quote...")
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quotes = await agen.__anext__()
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first_quotes = [
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brokermod.format_quote(quote, symbol_data=sd)[0]
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for quote in quotes.values()]
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try:
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async with trio.open_nursery() as nursery:
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# get first quotes response
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log.debug("Waiting on first quote...")
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quotes = await agen.__anext__()
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first_quotes = [
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brokermod.format_quote(quote, symbol_data=sd)[0]
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for quote in quotes.values()]
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if first_quotes[0].get('last') is None:
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log.error("Broker API is down temporarily")
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nursery.cancel_scope.cancel()
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return
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if first_quotes[0].get('last') is None:
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log.error("Broker API is down temporarily")
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nursery.cancel_scope.cancel()
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return
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# build out UI
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Window.set_title(f"watchlist: {name}\t(press ? for help)")
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Builder.load_string(_kv)
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box = BoxLayout(orientation='vertical', padding=5, spacing=5)
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# build out UI
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Window.set_title(f"watchlist: {name}\t(press ? for help)")
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Builder.load_string(_kv)
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box = BoxLayout(orientation='vertical', padding=5, spacing=5)
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# define bid-ask "stacked" cells
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# (TODO: needs some rethinking and renaming for sure)
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bidasks = brokermod._bidasks
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# define bid-ask "stacked" cells
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# (TODO: needs some rethinking and renaming for sure)
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bidasks = brokermod._bidasks
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# add header row
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headers = first_quotes[0].keys()
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header = Row(
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{key: key for key in headers},
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headers=headers,
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bidasks=bidasks,
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is_header_row=True,
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size_hint=(1, None),
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)
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box.add_widget(header)
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# add header row
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headers = first_quotes[0].keys()
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header = Row(
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{key: key for key in headers},
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headers=headers,
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bidasks=bidasks,
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is_header_row=True,
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size_hint=(1, None),
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)
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box.add_widget(header)
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# build grid
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grid = TickerTable(
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cols=1,
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size_hint=(1, None),
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)
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for ticker_record in first_quotes:
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grid.append_row(ticker_record, bidasks=bidasks)
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# associate the col headers row with the ticker table even though
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# they're technically wrapped separately in containing BoxLayout
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header.table = grid
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# build grid
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grid = TickerTable(
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cols=1,
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size_hint=(1, None),
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)
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for ticker_record in first_quotes:
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grid.append_row(ticker_record, bidasks=bidasks)
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# associate the col headers row with the ticker table even though
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# they're technically wrapped separately in containing BoxLayout
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header.table = grid
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# mark the initial sorted column header as bold and underlined
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sort_cell = header.get_cell(grid.sort_key)
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sort_cell.bold = sort_cell.underline = True
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grid.last_clicked_col_cell = sort_cell
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# mark the initial sorted column header as bold and underlined
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sort_cell = header.get_cell(grid.sort_key)
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sort_cell.bold = sort_cell.underline = True
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grid.last_clicked_col_cell = sort_cell
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# set up a pager view for large ticker lists
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grid.bind(minimum_height=grid.setter('height'))
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pager = PagerView(box, grid, nursery)
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box.add_widget(pager)
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# set up a pager view for large ticker lists
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grid.bind(minimum_height=grid.setter('height'))
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pager = PagerView(box, grid, nursery)
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box.add_widget(pager)
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widgets = {
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# 'anchor': anchor,
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'root': box,
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'grid': grid,
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'box': box,
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'header': header,
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'pager': pager,
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}
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nursery.start_soon(
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update_quotes, nursery, brokermod, widgets, agen, sd, quotes)
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widgets = {
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# 'anchor': anchor,
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'root': box,
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'grid': grid,
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'box': box,
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'header': header,
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'pager': pager,
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}
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nursery.start_soon(
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update_quotes, nursery, brokermod, widgets, agen, sd, quotes)
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# Trio-kivy entry point.
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await async_runTouchApp(widgets['root']) # run kivy
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await agen.aclose() # cancel aysnc gen call
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# Trio-kivy entry point.
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await async_runTouchApp(widgets['root']) # run kivy
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await agen.aclose() # cancel aysnc gen call
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finally:
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# un-subscribe from symbols stream
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await portal.run(
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"piker.brokers.core", 'modify_quote_stream',
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broker=brokermod.name, tickers=[])
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