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#
# A simple test to verify that the GIL is released while in long running
# wrappers like MainLoop, ShowModal, and PopupMenu so background threads can
# be allowed to run at those times.
#
import wx
import threading
import time
import random
print(wx.version())
class ThreadedTask(threading.Thread):
def __init__(self, *args, **kw):
threading.Thread.__init__(self, *args, **kw)
self.counter = 0
self.sleepTime = random.random()/2
self.timeToDie = False
def run(self):
while not self.timeToDie:
time.sleep(self.sleepTime)
self.counter += 1
print('thread: %5s count: %d' % (self.name, self.counter))
class MainFrame(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None, title="GIL Test")
self.pnl = wx.Panel(self)
btn = wx.Button(self.pnl, label='modal dialog', pos=(10,10))
self.Bind(wx.EVT_BUTTON, self.onButton, btn)
self.pnl.Bind(wx.EVT_CONTEXT_MENU, self.onShowMenu)
btn = wx.Button(self.pnl, label='timed test', pos=(10, 60))
self.Bind(wx.EVT_BUTTON, self.onOtherButton, btn)
def onButton(self, evt):
dlg = wx.Dialog(self, title='close this dialog', size=(300,150))
dlg.ShowModal()
dlg.Destroy()
def onOtherButton(self, evt):
# A simplistic benchmark test that times many repititions of some
# simple operations so they can be tested with and without releasing
# the GIL
start = time.time()
reps = 100000
for x in range(reps):
s = wx.Size(100, 100)
for n in range(10):
s.DecBy(4,6)
for n in range(10):
s.IncBy(4,6)
wx.MessageBox('%d reps performed in %f seconds' % (reps, time.time() - start),
'Results')
def onShowMenu(self, evt):
menu = wx.Menu()
menu.Append(-1, 'one')
menu.Append(-1, 'two')
menu.Append(-1, 'three')
self.pnl.PopupMenu(menu)
menu.Destroy()
threads = [ ThreadedTask(name='one'), ThreadedTask(name='two'), ThreadedTask(name='three') ]
for t in threads:
t.start()
app = wx.App()
frm = MainFrame()
frm.Show()
app.MainLoop()
for t in threads:
t.timeToDie = True
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