piker/brokers/deribit/feed.py

@@ -94,6 +94,21 @@ async def open_history_client(
         yield get_ohlc, {'erlangs': 3, 'rate': 3}
 
 
+async def backfill_bars(
+    symbol: str,
+    shm: ShmArray,  # type: ignore # noqa
+    task_status: TaskStatus[trio.CancelScope] = trio.TASK_STATUS_IGNORED,
+) -> None:
+    """Fill historical bars into shared mem / storage afap.
+    """
+    instrument = symbol
+    with trio.CancelScope() as cs:
+        async with open_cached_client('deribit') as client:
+            bars = await client.bars(instrument)
+            shm.push(bars)
+            task_status.started(cs)
+
+
 async def stream_quotes(
 
     send_chan: trio.abc.SendChannel,

piker/brokers/kraken/feed.py

@@ -303,6 +303,24 @@ async def open_history_client(
         yield get_ohlc, {'erlangs': 1, 'rate': 1}
 
 
+async def backfill_bars(
+
+    sym: str,
+    shm: ShmArray,  # type: ignore # noqa
+    count: int = 10,  # NOTE: any more and we'll overrun the underlying buffer
+    task_status: TaskStatus[trio.CancelScope] = trio.TASK_STATUS_IGNORED,
+
+) -> None:
+    '''
+    Fill historical bars into shared mem / storage afap.
+    '''
+    with trio.CancelScope() as cs:
+        async with open_cached_client('kraken') as client:
+            bars = await client.bars(symbol=sym)
+            shm.push(bars)
+            task_status.started(cs)
+
+
 async def stream_quotes(
 
     send_chan: trio.abc.SendChannel,
@@ -401,15 +419,14 @@ async def stream_quotes(
             yield
 
             # unsub from all pairs on teardown
-            if ws.connected():
-                await ws.send_msg({
-                    'pair': list(ws_pairs.values()),
-                    'event': 'unsubscribe',
-                    'subscription': ['ohlc', 'spread'],
-                })
+            await ws.send_msg({
+                'pair': list(ws_pairs.values()),
+                'event': 'unsubscribe',
+                'subscription': ['ohlc', 'spread'],
+            })
 
-                # XXX: do we need to ack the unsub?
-                # await ws.recv_msg()
+            # XXX: do we need to ack the unsub?
+            # await ws.recv_msg()
 
         # see the tips on reconnection logic:
         # https://support.kraken.com/hc/en-us/articles/360044504011-WebSocket-API-unexpected-disconnections-from-market-data-feeds

piker/clearing/_ems.py

@@ -172,7 +172,6 @@ async def clear_dark_triggers(
     # TODO:
     # - numba all this!
     # - this stream may eventually contain multiple symbols
-    quote_stream._raise_on_lag = False
     async for quotes in quote_stream:
         # start = time.time()
         for sym, quote in quotes.items():

piker/data/feed.py

@@ -414,9 +414,7 @@ async def start_backfill(
                 and starts[next_start_dt] <= 6
             ):
                 start_dt = min(starts)
-                log.warning(
-                    f"{bfqsn}: skipping duplicate frame @ {next_start_dt}"
-                )
+                print(f"SKIPPING DUPLICATE FRAME @ {next_start_dt}")
                 starts[start_dt] += 1
                 continue
 
@@ -618,7 +616,10 @@ async def tsdb_backfill(
 
     # unblock the feed bus management task
     # assert len(shms[1].array)
-    task_status.started()
+    task_status.started((
+        shms[60],
+        shms[1],
+    ))
 
     async def back_load_from_tsdb(
         timeframe: int,
@@ -867,7 +868,10 @@ async def manage_history(
                 marketstore.open_storage_client(fqsn)as storage,
             ):
                 # TODO: drop returning the output that we pass in?
-                await bus.nursery.start(
+                (
+                    hist_shm,
+                    rt_shm,
+                ) = await bus.nursery.start(
                     tsdb_backfill,
                     mod,
                     marketstore,

piker/fsp/_engine.py

@@ -21,9 +21,7 @@ core task logic for processing chains
 from dataclasses import dataclass
 from functools import partial
 from typing import (
-    AsyncIterator,
-    Callable,
-    Optional,
+    AsyncIterator, Callable, Optional,
     Union,
 )
 
@@ -388,7 +386,7 @@ async def cascade(
                 ) -> tuple[TaskTracker, int]:
                     # TODO: adopt an incremental update engine/approach
                     # where possible here eventually!
-                    log.info(f're-syncing fsp {func_name} to source')
+                    log.debug(f're-syncing fsp {func_name} to source')
                     tracker.cs.cancel()
                     await tracker.complete.wait()
                     tracker, index = await n.start(fsp_target)
@@ -431,7 +429,6 @@ async def cascade(
                     tracker: TaskTracker,
                     src: ShmArray,
                     dst: ShmArray,
-
                 ) -> tuple[TaskTracker, int]:
 
                     synced, step_diff, _ = is_synced(src, dst)
@@ -447,8 +444,7 @@ async def cascade(
                 # signal
                 times = src.array['time']
                 if len(times) > 1:
-                    last_ts = times[-1]
-                    delay_s = float(last_ts - times[times != last_ts][-1])
+                    delay_s = float(times[-1] - times[times != times[-1]][-1])
                 else:
                     # our default "HFT" sample rate.
                     delay_s = _default_delay_s

piker/ui/_chart.py

@@ -127,10 +127,7 @@ class GodWidget(QWidget):
         # self.init_strategy_ui()
         # self.vbox.addLayout(self.hbox)
 
-        self._chart_cache: dict[
-            str,
-            tuple[LinkedSplits, LinkedSplits],
-        ] = {}
+        self._chart_cache: dict[str, LinkedSplits] = {}
 
         self.hist_linked: Optional[LinkedSplits] = None
         self.rt_linked: Optional[LinkedSplits] = None
@@ -150,6 +147,23 @@ class GodWidget(QWidget):
     def linkedsplits(self) -> LinkedSplits:
         return self.rt_linked
 
+    # def init_timeframes_ui(self):
+    #     self.tf_layout = QHBoxLayout()
+    #     self.tf_layout.setSpacing(0)
+    #     self.tf_layout.setContentsMargins(0, 12, 0, 0)
+    #     time_frames = ('1M', '5M', '15M', '30M', '1H', '1D', '1W', 'MN')
+    #     btn_prefix = 'TF'
+
+    #     for tf in time_frames:
+    #         btn_name = ''.join([btn_prefix, tf])
+    #         btn = QtWidgets.QPushButton(tf)
+    #         # TODO:
+    #         btn.setEnabled(False)
+    #         setattr(self, btn_name, btn)
+    #         self.tf_layout.addWidget(btn)
+
+    #     self.toolbar_layout.addLayout(self.tf_layout)
+
     # XXX: strat loader/saver that we don't need yet.
     # def init_strategy_ui(self):
     #     self.strategy_box = StrategyBoxWidget(self)

piker/ui/_dataviz.py

@@ -19,10 +19,6 @@ Data vizualization APIs
 
 '''
 from __future__ import annotations
-from math import (
-    ceil,
-    floor,
-)
 from typing import (
     Optional,
     Literal,
@@ -460,13 +456,13 @@ class Viz(msgspec.Struct):  # , frozen=True):
             array = self.shm.array
 
         index = array[index_field]
-        first = floor(index[0])
-        last = ceil(index[-1])
+        first = round(index[0])
+        last = round(index[-1])
 
         # first and last datums in view determined by
         # l / r view range.
-        leftmost = floor(l)
-        rightmost = ceil(r)
+        leftmost = round(l)
+        rightmost = round(r)
 
         # invalid view state
         if (

piker/ui/_display.py

@@ -457,7 +457,7 @@ def graphics_update_cycle(
     #   state-tracking ``chart_maxmin()`` routine from above?
 
     chart = ds.chart
-    hist_chart = ds.hist_chart
+    hist_chart = ds.godwidget.hist_linked.chart
 
     flume = ds.flume
     sym = flume.symbol

piker/ui/_render.py

@@ -24,6 +24,7 @@ for fast incremental update.
 '''
 from __future__ import annotations
 from typing import (
+    Optional,
     TYPE_CHECKING,
 )
 
@@ -60,6 +61,17 @@ class Renderer(msgspec.Struct):
     path: QPainterPath | None = None
     fast_path: QPainterPath | None = None
 
+    # XXX: just ideas..
+    # called on the final data (transform) output to convert
+    # to "graphical data form" a format that can be passed to
+    # the ``.draw()`` implementation.
+    # graphics_t: Optional[Callable[ShmArray, np.ndarray]] = None
+    # graphics_t_shm: Optional[ShmArray] = None
+
+    # path graphics update implementation methods
+    # prepend_fn: Optional[Callable[QPainterPath, QPainterPath]] = None
+    # append_fn: Optional[Callable[QPainterPath, QPainterPath]] = None
+
     # downsampling state
     _last_uppx: float = 0
     _in_ds: bool = False
@@ -206,7 +218,7 @@ class Renderer(msgspec.Struct):
         ):
             # print(f"{self.viz.name} -> REDRAWING BRUH")
             if new_sample_rate and showing_src_data:
-                log.info(f'DE-downsampling -> {array_key}')
+                log.info(f'DEDOWN -> {array_key}')
                 self._in_ds = False
 
             elif should_ds and uppx > 1:
@@ -257,7 +269,10 @@ class Renderer(msgspec.Struct):
             append_length > 0
             and do_append
         ):
-            profiler(f'sliced append path {append_length}')
+            print(f'{array_key} append len: {append_length}')
+            # new_x = x_1d[-append_length - 2:]  # slice_to_head]
+            # new_y = y_1d[-append_length - 2:]  # slice_to_head]
+            profiler('sliced append path')
             # (
             #     x_1d,
             #     y_1d,
@@ -285,23 +300,22 @@ class Renderer(msgspec.Struct):
             profiler('generated append qpath')
 
             if use_fpath:
+                # print(f'{self.viz.name}: FAST PATH')
                 # an attempt at trying to make append-updates faster..
                 if fast_path is None:
                     fast_path = append_path
                     # fast_path.reserve(int(6e3))
                 else:
-                    # print(
-                    #     f'{self.viz.name}: FAST PATH\n'
-                    #     f"append_path br: {append_path.boundingRect()}\n"
-                    #     f"path size: {size}\n"
-                    #     f"append_path len: {append_path.length()}\n"
-                    #     f"fast_path len: {fast_path.length()}\n"
-                    # )
-
                     fast_path.connectPath(append_path)
                     size = fast_path.capacity()
                     profiler(f'connected fast path w size: {size}')
 
+                    print(
+                        f"append_path br: {append_path.boundingRect()}\n"
+                        f"path size: {size}\n"
+                        f"append_path len: {append_path.length()}\n"
+                        f"fast_path len: {fast_path.length()}\n"
+                    )
                     # graphics.path.moveTo(new_x[0], new_y[0])
                     # path.connectPath(append_path)
 

piker/ui/_search.py

@@ -144,29 +144,15 @@ class CompleterView(QTreeView):
         self._font_size: int = 0  # pixels
         self._init: bool = False
 
-    async def on_pressed(
-        self,
-        idx: QModelIndex,
-    ) -> None:
+    async def on_pressed(self, idx: QModelIndex) -> None:
         '''
         Mouse pressed on view handler.
 
         '''
         search = self.parent()
-
-        await search.chart_current_item(
-            clear_to_cache=True,
-        )
-
-        # XXX: this causes Qt to hang and segfault..lovely
-        # self.show_cache_entries(
-        #     only=True,
-        #     keep_current_item_selected=True,
-        # )
-
+        await search.chart_current_item()
         search.focus()
 
-
     def set_font_size(self, size: int = 18):
         # print(size)
         if size < 0:
@@ -302,7 +288,7 @@ class CompleterView(QTreeView):
     def select_first(self) -> QStandardItem:
         '''
         Select the first depth >= 2 entry from the completer tree and
-        return its item.
+        return it's item.
 
         '''
         # ensure we're **not** selecting the first level parent node and
@@ -629,8 +615,6 @@ class SearchWidget(QtWidgets.QWidget):
     def show_cache_entries(
         self,
         only: bool = False,
-        keep_current_item_selected: bool = False,
-
     ) -> None:
         '''
         Clear the search results view and show only cached (aka recently
@@ -640,14 +624,10 @@ class SearchWidget(QtWidgets.QWidget):
         godw = self.godwidget
 
         # first entry in the cache is the current symbol(s)
-        fqsns = set()
-        for multi_fqsns in list(godw._chart_cache):
-            for fqsn in set(multi_fqsns):
-                fqsns.add(fqsn)
+        fqsns = []
 
-        if keep_current_item_selected:
-            sel = self.view.selectionModel()
-            cidx = sel.currentIndex()
+        for multi_fqsns in list(godw._chart_cache):
+            fqsns.extend(list(multi_fqsns))
 
         self.view.set_section_entries(
             'cache',
@@ -657,17 +637,7 @@ class SearchWidget(QtWidgets.QWidget):
             reverse=True,
         )
 
-        if (
-            keep_current_item_selected
-            and cidx.isValid()
-        ):
-            # set current selection back to what it was before filling out
-            # the view results.
-            self.view.select_from_idx(cidx)
-        else:
-            self.view.select_first()
-
-    def get_current_item(self) -> tuple[QModelIndex, str, str] | None:
+    def get_current_item(self) -> Optional[tuple[str, str]]:
         '''
         Return the current completer tree selection as
         a tuple ``(parent: str, child: str)`` if valid, else ``None``.
@@ -695,11 +665,7 @@ class SearchWidget(QtWidgets.QWidget):
             if provider == 'cache':
                 symbol, _, provider = symbol.rpartition('.')
 
-            return (
-                cidx,
-                provider,
-                symbol,
-            )
+            return provider, symbol
 
         else:
             return None
@@ -720,7 +686,7 @@ class SearchWidget(QtWidgets.QWidget):
         if value is None:
             return None
 
-        cidx, provider, symbol = value
+        provider, symbol = value
         godw = self.godwidget
 
         fqsn = f'{symbol}.{provider}'
@@ -749,9 +715,7 @@ class SearchWidget(QtWidgets.QWidget):
                     godw.rt_linked,
                 )
             )
-            self.show_cache_entries(
-                only=True,
-            )
+            self.show_cache_entries(only=True)
 
         self.bar.focus()
         return fqsn
@@ -992,10 +956,11 @@ async def handle_keyboard_input(
     global _search_active, _search_enabled
 
     # startup
-    searchw = searchbar.parent()
-    godwidget = searchw.godwidget
-    view = searchbar.view
-    view.set_font_size(searchbar.dpi_font.px_size)
+    bar = searchbar
+    search = searchbar.parent()
+    godwidget = search.godwidget
+    view = bar.view
+    view.set_font_size(bar.dpi_font.px_size)
     send, recv = trio.open_memory_channel(616)
 
     async with trio.open_nursery() as n:
@@ -1006,13 +971,13 @@ async def handle_keyboard_input(
         n.start_soon(
             partial(
                 fill_results,
-                searchw,
+                search,
                 recv,
             )
         )
 
-        searchbar.focus()
-        searchw.show_cache_entries()
+        bar.focus()
+        search.show_cache_entries()
         await trio.sleep(0)
 
         async for kbmsg in recv_chan:
@@ -1029,24 +994,16 @@ async def handle_keyboard_input(
                 Qt.Key_Return
             ):
                 _search_enabled = False
-                await searchw.chart_current_item(clear_to_cache=True)
-
-                # XXX: causes hang and segfault..
-                # searchw.show_cache_entries(
-                #     only=True,
-                #     keep_current_item_selected=True,
-                # )
-
+                await search.chart_current_item(clear_to_cache=True)
+                search.show_cache_entries(only=True)
                 view.show_matches()
-                searchw.focus()
+                search.focus()
+
+            elif not ctl and not bar.text():
 
-            elif (
-                not ctl
-                and not searchbar.text()
-            ):
                 # TODO: really should factor this somewhere..bc
                 # we're doin it in another spot as well..
-                searchw.show_cache_entries(only=True)
+                search.show_cache_entries(only=True)
                 continue
 
             # cancel and close
@@ -1055,7 +1012,7 @@ async def handle_keyboard_input(
                 Qt.Key_Space,   # i feel like this is the "native" one
                 Qt.Key_Alt,
             }:
-                searchbar.unfocus()
+                bar.unfocus()
 
                 # kill the search and focus back on main chart
                 if godwidget:
@@ -1063,54 +1020,41 @@ async def handle_keyboard_input(
 
                 continue
 
-            if (
-                ctl
-                and key in {Qt.Key_L}
-            ):
+            if ctl and key in {
+                Qt.Key_L,
+            }:
                 # like url (link) highlight in a web browser
-                searchbar.focus()
+                bar.focus()
 
             # selection navigation controls
-            elif (
-                ctl
-                and key in {Qt.Key_D}
-            ):
+            elif ctl and key in {
+                Qt.Key_D,
+            }:
                 view.next_section(direction='down')
                 _search_enabled = False
 
-            elif (
-                ctl
-                and key in {Qt.Key_U}
-            ):
+            elif ctl and key in {
+                Qt.Key_U,
+            }:
                 view.next_section(direction='up')
                 _search_enabled = False
 
             # selection navigation controls
-            elif (
-                ctl and (
-                    key in {
-                        Qt.Key_K,
-                        Qt.Key_J,
-                    }
+            elif (ctl and key in {
 
-                    or key in {
-                        Qt.Key_Up,
-                        Qt.Key_Down,
-                    }
-                )
-            ):
+                Qt.Key_K,
+                Qt.Key_J,
+
+            }) or key in {
+
+                Qt.Key_Up,
+                Qt.Key_Down,
+            }:
                 _search_enabled = False
-
-                if key in {
-                    Qt.Key_K,
-                    Qt.Key_Up
-                }:
+                if key in {Qt.Key_K, Qt.Key_Up}:
                     item = view.select_previous()
 
-                elif key in {
-                    Qt.Key_J,
-                    Qt.Key_Down,
-                }:
+                elif key in {Qt.Key_J, Qt.Key_Down}:
                     item = view.select_next()
 
                 if item:
@@ -1119,18 +1063,15 @@ async def handle_keyboard_input(
                     # if we're in the cache section and thus the next
                     # selection is a cache item, switch and show it
                     # immediately since it should be very fast.
-                    if (
-                        parent_item
-                        and parent_item.text() == 'cache'
-                    ):
-                        await searchw.chart_current_item(clear_to_cache=False)
+                    if parent_item and parent_item.text() == 'cache':
+                        await search.chart_current_item(clear_to_cache=False)
 
             # ACTUAL SEARCH BLOCK #
             # where we fuzzy complete and fill out sections.
             elif not ctl:
                 # relay to completer task
                 _search_enabled = True
-                send.send_nowait(searchw.bar.text())
+                send.send_nowait(search.bar.text())
                 _search_active.set()