An improved Leak (Uncollected Objects) Gramplet (#345)
* Improved leak detector (debugging tool) * Fix DummyDb so it garbage collector can reclaim it after close * Fix leak gramplet so pop-ups use correct transient parent
This commit is contained in:
Paul Culley
Sam Manzi
parent
86fd14613e
commit
ebb7111f25
@ -216,8 +216,9 @@ class DummyDb(M_A_M_B("NewBaseClass", (DbReadBase, Callback, object,), {})):
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"""
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Create a new DummyDb instance.
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"""
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DbReadBase.__init__(self)
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Callback.__init__(self)
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self.basedb = None
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self.__feature = {} # {"feature": VALUE, ...}
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self.db_is_open = False
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self.readonly = True
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self.name_formats = []
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@ -1271,7 +1271,7 @@ register(GRAMPLET,
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gramps_target_version=MODULE_VERSION,
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status = UNSTABLE,
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fname="leak.py",
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height=200,
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height=400,
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gramplet = 'Leak',
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gramplet_title="Uncollected Objects",
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)
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141
gramps/plugins/gramplet/leak.py
Normal file → Executable file
141
gramps/plugins/gramplet/leak.py
Normal file → Executable file
@ -23,7 +23,13 @@
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"""
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Show uncollected objects in a window.
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"""
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#------------------------------------------------------------------------
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#
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# Python modules
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#
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#------------------------------------------------------------------------
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import weakref
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import sys
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#------------------------------------------------------------------------
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#
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# GNOME/GTK modules
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@ -40,10 +46,11 @@ import gc
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#------------------------------------------------------------------------
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from gramps.gen.plug import Gramplet
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from gramps.gui.dialog import InfoDialog
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from gramps.gui.utils import is_right_click
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from gramps.gui.utils import is_right_click, ProgressMeter
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from gramps.gen.const import GRAMPS_LOCALE as glocale
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_ = glocale.translation.gettext
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#-------------------------------------------------------------------------
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#
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# Leak
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@ -58,7 +65,7 @@ class Leak(Gramplet):
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self.gui.get_container_widget().remove(self.gui.textview)
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self.gui.get_container_widget().add(self.gui.WIDGET)
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flags = gc.DEBUG_UNCOLLECTABLE|gc.DEBUG_SAVEALL
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flags = gc.DEBUG_UNCOLLECTABLE | gc.DEBUG_SAVEALL
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if hasattr(gc, "DEBUG_OBJECTS"):
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flags = flags | gc.DEBUG_OBJECTS
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gc.set_debug(flags)
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@ -74,24 +81,27 @@ class Leak(Gramplet):
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self.top.pack_start(self.label, False, False, 6)
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self.scroll = Gtk.ScrolledWindow()
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#add a listview to the scrollable
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# add a listview to the scrollable
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self.list = Gtk.TreeView()
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self.list.set_headers_visible(True)
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self.list.connect('button-press-event', self._button_press)
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self.scroll.add(self.list)
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#make a model
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self.modeldata = []
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self.model = Gtk.ListStore(int, str)
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# make a model
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self.model = Gtk.ListStore(int, str, str)
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self.list.set_model(self.model)
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#set the columns
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# set the columns
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self.renderer = Gtk.CellRendererText()
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column = Gtk.TreeViewColumn(_('Number'), self.renderer, text=0)
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column.set_resizable(True)
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column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
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self.list.append_column(column)
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column = Gtk.TreeViewColumn(_('Referrer'), self.renderer, text=1)
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column.set_resizable(True)
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column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
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self.list.append_column(column)
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column = Gtk.TreeViewColumn(_('Uncollected object'), self.renderer,
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text=1)
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text=2)
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column.set_resizable(True)
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column.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
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self.list.append_column(column)
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@ -109,7 +119,9 @@ class Leak(Gramplet):
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return self.top
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def main(self):
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self.display()
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self.label.set_text(_('Press Refresh to see initial results'))
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self.model.clear()
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# self.display() # We should only run this on demand
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def _button_press(self, obj, event):
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if event.type == Gdk.EventType._2BUTTON_PRESS and event.button == 1:
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@ -120,32 +132,52 @@ class Leak(Gramplet):
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return True
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def referenced_in(self):
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model, iter = self.selection.get_selected()
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if iter is not None:
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count = model.get_value(iter, 0)
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referrers = gc.get_referrers(self.modeldata[count])
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model, _iter = self.selection.get_selected()
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if _iter is not None:
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count = model.get_value(_iter, 0)
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gc.collect(2)
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referrers = gc.get_referrers(self.junk[count])
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text = ""
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for referrer in referrers:
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match = ""
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try:
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text += str(referrer) + '\n'
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if referrer is not self.junk:
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match = "**** "
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for indx in range(len(self.junk)):
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if referrer is self.junk[indx]:
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match = str(indx) + ": "
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break
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match += str(referrer) + '\n'
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except ReferenceError:
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pass
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InfoDialog(_('Referrers of %d') % count, text,
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parent=self.uistate.window)
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match += 'weakly-referenced object no longer exists %s'\
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% type(referrer)
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except:
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print(sys.exc_info())
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text += match
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InfoDialog(_('Referrers of %d') % count, text, parent=self.parent)
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def refers_to(self):
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model, iter = self.selection.get_selected()
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if iter is not None:
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count = model.get_value(iter, 0)
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referents = gc.get_referents(self.modeldata[count])
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model, _iter = self.selection.get_selected()
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if _iter is not None:
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count = model.get_value(_iter, 0)
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referents = gc.get_referents(self.junk[count])
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text = ""
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for referent in referents:
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match = ""
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try:
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text += str(referent) + '\n'
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match = "****: "
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for indx in range(len(self.junk)):
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if referent is self.junk[indx]:
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match = str(indx) + ': '
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break
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match += str(referent) + '\n'
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except ReferenceError:
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pass
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InfoDialog(_('%d refers to') % count, text,
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parent=self.uistate.window)
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match += '%s weakly-referenced object no longer'\
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' exists\n' % type(referent)
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except:
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print(sys.exc_info())
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text += match
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InfoDialog(_('%d refers to') % count, text, parent=self.parent)
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def display(self):
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try:
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@ -155,21 +187,56 @@ class Leak(Gramplet):
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"""
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Dummy.
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"""
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gc.collect(2)
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self.parent = self.top.get_toplevel()
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progress = ProgressMeter(
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_('Updating display...'), '', parent=self.parent)
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self.model.clear()
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count = 0
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if len(gc.garbage):
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for each in gc.garbage:
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self.junk = []
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gc.collect(2)
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self.junk = gc.garbage
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self.label.set_text(_('Uncollected Objects: %s') %
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str(len(self.junk)))
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progress.set_pass(_('Updating display...'), len(self.junk))
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for count in range(0, len(self.junk)):
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progress.step()
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try:
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self.modeldata.append(each)
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self.model.append((count, str(each)))
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refs = []
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referrers = gc.get_referrers(self.junk[count])
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for referrer in referrers:
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try:
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if referrer is not self.junk:
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for indx in range(0, len(self.junk)):
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if referrer is self.junk[indx]:
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refs.append(str(indx) + ' ')
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break
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except:
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print(sys.exc_info())
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if len(refs) > 3:
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ref = ' '.join(refs[0:2]) + "..."
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else:
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ref = ' '.join(refs)
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try:
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self.model.append((count, ref, str(self.junk[count])))
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except DBError:
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self.modeldata.append(each)
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self.model.append((count, 'db.DB instance at %s' % id(each)))
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self.model.append((count, ref,
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'db.DB instance at %s' %
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id(self.junk[count])))
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except ReferenceError:
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pass
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count += 1
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self.label.set_text(_('Uncollected Objects: %s') % str(len(gc.garbage)))
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self.model.append((
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count, ref,
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'weakly-referenced object no longer exists %s'
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% type(self.junk[count])))
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except TypeError:
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self.model.append((
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count, ref,
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'Object cannot be displayed %s'
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% type(self.junk[count])))
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except:
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print(sys.exc_info())
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except ReferenceError:
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InfoDialog(_('Reference Error'), "Refresh to correct",
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parent=self.parent)
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progress.close()
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def apply_clicked(self, obj):
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self.display()
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