def select(self, timeout=None):
self._context.acquire()
try:
if timeout is None:
self._context.iteration(True)
elif timeout <= 0:
self._context.iteration(False)
else:
# Schedule fake callback that will trigger an event and cause the loop to terminate
# after the given number of seconds
handle = GLibHandle(
loop=self,
source=GLib.Timeout(timeout * 1000),
repeat=False,
callback=lambda: None,
args=(),
)
try:
self._context.iteration(True)
finally:
handle.cancel()
return (
) # Available events are dispatched immediately and not returned
finally:
self._context.release()
def call_later(self, delay, callback, *args):
return GLibHandle(
loop=self,
source=GLib.Timeout(delay*1000) if delay > 0 else GLib.Idle(),
repeat=False,
callback=callback,
args=args)
def call_later(self, delay, callback, *args):
if delay <= 0:
return self.call_soon(callback, *args)
else:
return GLibHandle(self,
GLib.Timeout(delay * 1000 if delay > 0 else 0),
False, callback, args)
def source(self, func):
timeout = self.timeout
if timeout > 0:
s = GLib.Timeout(timeout)
else:
s = GLib.Idle()
s.set_callback(func)
s.priority = self.priority
return s
def _timeout_add(self,
delay,
callback,
args,
context=None,
frame=None) -> 'GLibSourceHandle':
# GLib.Timeout expects milliseconds.
source = GLib.Timeout(delay * 1000)
return self._schedule_callback(source, callback, args, context, frame)
def call_later(self, delay, callback, *args):
self._check_not_coroutine(callback, 'call_later')
return GLibHandle(
loop=self,
source=GLib.Timeout(delay * 1000) if delay > 0 else GLib.Idle(),
repeat=False,
callback=callback,
args=args)
def _invoke(self, delay, callback, args):
event = GLib.Timeout(delay * 1000) if delay > 0 else GLib.Idle()
self.pending_events.add(event)
def fire(context):
self.pending_events.remove(event)
event.destroy()
callback(*args)
event.set_callback(fire, None)
event.attach(self._context)
def test_priority(self):
s = GLib.Idle()
self.assertEqual(s.priority, GLib.PRIORITY_DEFAULT_IDLE)
s.priority = GLib.PRIORITY_HIGH
self.assertEqual(s.priority, GLib.PRIORITY_HIGH)
s = GLib.Idle(GLib.PRIORITY_LOW)
self.assertEqual(s.priority, GLib.PRIORITY_LOW)
s = GLib.Timeout(1, GLib.PRIORITY_LOW)
self.assertEqual(s.priority, GLib.PRIORITY_LOW)
s = GLib.Source()
self.assertEqual(s.priority, GLib.PRIORITY_DEFAULT)
def _schedule_dispatch(self):
if not self._ready or self._wakeup is not None:
return
def wakeup_cb(self):
self._dispatch()
if self._ready:
return True
else:
self._wakeup.destroy()
self._wakeup = None
return False
self._wakeup = GLib.Timeout(0)
self._wakeup.set_callback(wakeup_cb, self)
self._wakeup.attach(self._context)
def setup_timeout(self, loop):
timeout = GLib.Timeout(500)
timeout.set_callback(self.timeout_callback, loop)
timeout.attach()
def test_out_of_scope_before_dispatch(self):
# https://bugzilla.gnome.org/show_bug.cgi?id=504337
GLib.Timeout(20)
GLib.Idle()
def test504337(self):
GLib.Timeout(20)
GLib.Idle()
