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Add more debug prints for shutdown timing

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Kovid Goyal 2026-01-04 06:26:20 +05:30
parent ec9ac3e541
commit 8234f9c695
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 10 additions and 2 deletions
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12
src/calibre/gui2/ui.py
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@ -14,7 +14,6 @@ import os
import re
import sys
import textwrap
import time
from collections import OrderedDict, deque
from io import BytesIO
from queue import Empty, Queue
@ -1253,6 +1252,7 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin, # {{{
self.library_view.connect_to_book_display_timer.stop()
self.shutdown_started.emit()
self.show_shutdown_message()
timed_print('Shutdown message shown...')
self.server_change_notification_timer.stop()
self.extra_files_watcher.clear()
try:
@ -1266,7 +1266,9 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin, # {{{
_('Running database shutdown plugins. This could take a few seconds...'))
self.grid_view.shutdown()
timed_print('Grid view shutdown')
self.bookshelf_view.shutdown()
timed_print('Bookshelf view shutdown')
db = None
try:
db = self.library_view.model().db
@ -1282,6 +1284,7 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin, # {{{
db.prefs.write_serialized(prefs['library_path'])
for action in self.iactions.values():
action.shutting_down()
timed_print('Actions shutdown')
if write_settings:
self.write_settings()
if getattr(self, 'update_checker', None):
@ -1291,6 +1294,7 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin, # {{{
self.job_manager.threaded_server.close()
self.device_manager.keep_going = False
self.auto_adder.stop()
timed_print('Various services shutdown')
# Do not report any errors that happen after the shutdown
# We cannot restore the original excepthook as that causes PyQt to
# call abort() on unhandled exceptions
@ -1306,8 +1310,10 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin, # {{{
mb = self.library_view.model().metadata_backup
if mb is not None:
mb.stop()
timed_print('Metadata backup shutdown')
self.library_view.model().close()
timed_print('Current database closed')
try:
if self.content_server is not None:
@ -1319,18 +1325,20 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin, # {{{
s = self.content_server
self.content_server = None
s.exit()
timed_print('Content server shutdown')
except KeyboardInterrupt:
pass
except Exception:
pass
self.hide_windows()
timed_print('Windows hidden')
if self._spare_pool is not None:
self._spare_pool.shutdown()
from calibre.scraper.simple import cleanup_overseers
wait_for_cleanup = cleanup_overseers()
from calibre.live import async_stop_worker
wait_for_stop = async_stop_worker()
time.sleep(2)
timed_print('Waiting for overseers and live to shutdown')
self.istores.join()
wait_for_cleanup()
wait_for_stop()