From bee33f2df629a702dd61345e14d807720b94e3e9 Mon Sep 17 00:00:00 2001
From: Devaev Maxim <mdevaev@gmail.com>
Date: Tue, 13 Oct 2020 17:27:36 +0300
Subject: tools.clear_queue()

---
 kvmd/plugins/hid/otg/device.py |  7 ++-----
 kvmd/plugins/hid/serial.py     |  7 ++-----
 kvmd/tools.py                  | 11 +++++++++++
 3 files changed, 15 insertions(+), 10 deletions(-)

(limited to 'kvmd')

diff --git a/kvmd/plugins/hid/otg/device.py b/kvmd/plugins/hid/otg/device.py
index bead6d59..3fad9d3c 100644
--- a/kvmd/plugins/hid/otg/device.py
+++ b/kvmd/plugins/hid/otg/device.py
@@ -31,6 +31,7 @@ from typing import Dict
 
 from ....logging import get_logger
 
+from .... import tools
 from .... import aiomulti
 from .... import aioproc
 
@@ -134,11 +135,7 @@ class BaseDeviceProcess(multiprocessing.Process):  # pylint: disable=too-many-in
         self.__events_queue.put_nowait(event)
 
     def _clear_queue(self) -> None:
-        while not self.__events_queue.empty():
-            try:
-                self.__events_queue.get_nowait()
-            except queue.Empty:
-                break
+        tools.clear_queue(self.__events_queue)
 
     def _ensure_write(self, report: bytes, reopen: bool=False, close: bool=False) -> bool:
         if reopen:
diff --git a/kvmd/plugins/hid/serial.py b/kvmd/plugins/hid/serial.py
index 1019bdd4..e1a85b1a 100644
--- a/kvmd/plugins/hid/serial.py
+++ b/kvmd/plugins/hid/serial.py
@@ -43,6 +43,7 @@ from ...logging import get_logger
 from ...keyboard.mappings import KEYMAP
 
 from ... import env
+from ... import tools
 from ... import aiotools
 from ... import aiomulti
 from ... import aioproc
@@ -320,11 +321,7 @@ class Plugin(BaseHid, multiprocessing.Process):  # pylint: disable=too-many-inst
         self.__queue_event(_MouseWheelEvent(delta_x, delta_y))
 
     def clear_events(self) -> None:
-        while not self.__events_queue.empty():
-            try:
-                self.__events_queue.get_nowait()
-            except queue.Empty:
-                break
+        tools.clear_queue(self.__events_queue)
         self.__queue_event(_ClearEvent())
 
     def __queue_event(self, event: _BaseEvent) -> None:
diff --git a/kvmd/tools.py b/kvmd/tools.py
index 6d10e227..555ddc3e 100644
--- a/kvmd/tools.py
+++ b/kvmd/tools.py
@@ -22,6 +22,8 @@
 
 import operator
 import functools
+import multiprocessing.queues
+import queue
 
 from typing import Tuple
 from typing import List
@@ -53,3 +55,12 @@ _DictValueT = TypeVar("_DictValueT")
 
 def sorted_kvs(dct: Dict[_DictKeyT, _DictValueT]) -> List[Tuple[_DictKeyT, _DictValueT]]:
     return sorted(dct.items(), key=operator.itemgetter(0))
+
+
+# =====
+def clear_queue(q: multiprocessing.queues.Queue) -> None:  # pylint: disable=invalid-name
+    for _ in range(q.qsize()):
+        try:
+            q.get_nowait()
+        except queue.Empty:
+            break
-- 
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