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7231: recursion limit during navigation; added lock to prevent reentrant calls over and over to prevent overflowing stack

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This commit is contained in:
Doug Blank 2013-11-26 07:00:16 -05:00
parent 2633afc555
commit 3e17a1586a
1 changed files with 9 additions and 5 deletions
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gramps/plugins/gramplet/backlinks.py
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@ -27,12 +27,14 @@ from gramps.gui.utils import edit_object
from gramps.gen.const import GRAMPS_LOCALE as glocale from gramps.gen.const import GRAMPS_LOCALE as glocale
_ = glocale.translation.gettext _ = glocale.translation.gettext
from gi.repository import Gtk from gi.repository import Gtk
import threading
class Backlinks(Gramplet): class Backlinks(Gramplet):
""" """
Displays the back references for an object. Displays the back references for an object.
""" """
def init(self): def init(self):
self.lock = threading.Lock()
self.gui.WIDGET = self.build_gui() self.gui.WIDGET = self.build_gui()
self.gui.get_container_widget().remove(self.gui.textview) self.gui.get_container_widget().remove(self.gui.textview)
self.gui.get_container_widget().add(self.gui.WIDGET) self.gui.get_container_widget().add(self.gui.WIDGET)
@ -54,11 +56,13 @@ class Backlinks(Gramplet):
""" """
Display the back references for an object. Display the back references for an object.
""" """
if self.lock.acquire():
for classname, handle in \ for classname, handle in \
self.dbstate.db.find_backlink_handles(active_handle): self.dbstate.db.find_backlink_handles(active_handle):
name = navigation_label(self.dbstate.db, classname, handle)[0] name = navigation_label(self.dbstate.db, classname, handle)[0]
self.model.add((_(classname), name, handle, classname)) self.model.add((_(classname), name, handle, classname))
self.set_has_data(self.model.count > 0) self.set_has_data(self.model.count > 0)
self.lock.release()
def get_has_data(self, active_handle): def get_has_data(self, active_handle):
""" """