[fix][ui] using the sleep function wrongly within the Qt threads

CHANGELOG.md

@@ -42,6 +42,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
     - not calling initial required tasks after enabling a new package type on settings
     - not updating the type filters if only one type is available after refreshing the table
     - displaying the type filters on the search results when there is only one type available after some actions finish
+    - using the sleep function wrongly within the Qt threads (causes random crashes)
     - minor fixes
 - Tray
     - update notifications not working on Ubuntu 18.04

bauh/gems/appimage/worker.py

@@ -27,7 +27,7 @@ class DatabaseUpdater(Thread):
         self.http_client = http_client
         self.logger = logger
         self.db_locks = db_locks
-        self.sleep = interval
+        self.sleep_time = interval
         self.i18n = i18n
         self.task_man = task_man
         self.task_id = 'appim_db'
@@ -103,7 +103,7 @@ class DatabaseUpdater(Thread):
         while True:
             self.download_databases()
             self.logger.info('Sleeping')
-            time.sleep(self.sleep)
+            time.sleep(self.sleep_time)
 
 
 class SymlinksVerifier(Thread):

bauh/view/qt/components.py

@@ -1,11 +1,9 @@
 import os
-import time
 import traceback
 from pathlib import Path
-from threading import Thread
 from typing import Tuple, Dict, Optional, Set
 
-from PyQt5.QtCore import Qt, QSize
+from PyQt5.QtCore import Qt, QSize, QTimer
 from PyQt5.QtGui import QIcon, QPixmap, QIntValidator, QCursor
 from PyQt5.QtWidgets import QRadioButton, QGroupBox, QCheckBox, QComboBox, QGridLayout, QWidget, \
     QLabel, QSizePolicy, QLineEdit, QToolButton, QHBoxLayout, QFormLayout, QFileDialog, QTabWidget, QVBoxLayout, \
@@ -600,26 +598,23 @@ class InputFilter(QLineEdit):
         super(InputFilter, self).__init__()
         self.on_key_press = on_key_press
         self.last_text = ''
-        self.typing = None
+        self.typing = QTimer()
+        self.typing.timeout.connect(self.notify_text_change)
 
     def notify_text_change(self):
-        time.sleep(2)
         text = self.text().strip()
 
         if text != self.last_text:
             self.last_text = text
             self.on_key_press()
 
-        self.typing = None
-
     def keyPressEvent(self, event):
         super(InputFilter, self).keyPressEvent(event)
 
-        if self.typing:
+        if self.typing.isActive():
             return
 
-        self.typing = Thread(target=self.notify_text_change, daemon=True)
-        self.typing.start()
+        self.typing.start(2000)
 
     def get_text(self):
         return self.last_text

bauh/view/qt/prepare.py

@@ -1,6 +1,5 @@
 import datetime
 import operator
-import time
 from functools import reduce
 from typing import Tuple
 
@@ -42,7 +41,7 @@ class Prepare(QThread, TaskManager):
         self.signal_ask_password.emit()
 
         while self.waiting_password:
-            time.sleep(0.1)  # waiting for user input
+            self.msleep(100)  # waiting for user input
 
         return self.password_response
 
@@ -83,12 +82,12 @@ class CheckFinished(QThread):
         self.finished = None
 
     def run(self):
-        time.sleep(3)
+        self.sleep(3)
         while True:
             if self.total == self.finished:
                 break
 
-            time.sleep(0.01)
+            self.msleep(10)
 
         self.signal_finished.emit()
 
@@ -112,7 +111,7 @@ class EnableSkip(QThread):
                 self.signal_timeout.emit()
                 break
 
-            time.sleep(0.1)
+            self.msleep(100)
 
 
 class PreparePanel(QWidget, TaskManager):

bauh/view/qt/thread.py

@@ -1,14 +1,15 @@
 import os
 import re
-import requests
 import time
 import traceback
-from PyQt5.QtCore import QThread, pyqtSignal
 from datetime import datetime, timedelta
 from io import StringIO
 from pathlib import Path
 from typing import List, Type, Set, Tuple
 
+import requests
+from PyQt5.QtCore import QThread, pyqtSignal
+
 from bauh import LOGS_PATH
 from bauh.api.abstract.cache import MemoryCache
 from bauh.api.abstract.controller import SoftwareManager, UpgradeRequirement, UpgradeRequirements
@@ -73,7 +74,7 @@ class AsyncAction(QThread, ProcessWatcher):
 
     def wait_user(self):
         while self.wait_confirmation:
-            time.sleep(0.01)
+            self.msleep(10)
 
     def print(self, msg: str):
         if msg:
@@ -670,7 +671,7 @@ class AnimateProgress(QThread):
         self.increment = 5
         self.stop = False
         self.limit = 100
-        self.sleep = 0.05
+        self.wait_time = 50
         self.last_progress = 0
         self.manual = False
         self.paused = False
@@ -680,7 +681,7 @@ class AnimateProgress(QThread):
         self.increment = 5
         self.stop = False
         self.limit = 100
-        self.sleep = 0.05
+        self.wait_time = 50
         self.last_progress = 0
         self.manual = False
         self.paused = False
@@ -724,7 +725,7 @@ class AnimateProgress(QThread):
 
                 self.progress_value += current_increment
 
-            time.sleep(self.sleep)
+            super(AnimateProgress, self).msleep(self.wait_time)
 
         self.signal_change.emit(100)
         self._reset()
@@ -766,7 +767,7 @@ class NotifyPackagesReady(QThread):
             if not to_verify:
                 break
 
-            time.sleep(0.1)
+            self.msleep(100)
 
         self.pkgs = None
         self.work = True
@@ -787,7 +788,7 @@ class NotifyInstalledLoaded(QThread):
         self.loaded = True
 
     def run(self):
-        time.sleep(0.1)
+        self.msleep(100)
         self.signal_loaded.emit()
 
 
@@ -828,7 +829,7 @@ class LaunchPackage(AsyncAction):
     def run(self):
         if self.pkg:
             try:
-                time.sleep(0.25)
+                super(LaunchPackage, self).msleep(250)
                 self.manager.launch(self.pkg.model)
                 self.notify_finished(True)
             except:
@@ -911,7 +912,7 @@ class ApplyFilters(AsyncAction):
             self.signal_table.emit(pkgs_info)
 
             while self.wait_table_update:
-                time.sleep(0.005)
+                super(ApplyFilters, self).msleep(5)
 
         self.notify_finished()
 

bauh/view/qt/window.py

@@ -1,4 +1,4 @@
-import datetime
+import logging
 import logging
 import operator
 import time
@@ -507,11 +507,7 @@ class ManageWindow(QWidget):
     def stop_notifying_package_states(self):
         if self.thread_notify_pkgs_ready.isRunning():
             self.signal_stop_notifying.emit()
-
-            expires_at = datetime.datetime.now() + datetime.timedelta(seconds=5)
-
-            while datetime.datetime.now() < expires_at and self.thread_notify_pkgs_ready.isRunning():
-                time.sleep(0.1)
+            self.thread_notify_pkgs_ready.wait(1000)
 
     def _update_table_and_upgrades(self, pkgs_info: dict):
         self._update_table(pkgs_info=pkgs_info, signal=True)