def start(self, opts=None):
""" We've already created a debugger object, but here we start
debugging in earnest. We can also turn off debugging (but have
the hooks suspended or not) using 'stop'.
'opts' is a hash of every known value you might want to set when
starting the debugger. See START_OPTS of module default.
"""
# The below is our fancy equivalent of:
# sys.settrace(self._trace_dispatch)
try:
self.trace_hook_suspend = True
get_option = lambda key: Mmisc.option_set(opts, key,
default.START_OPTS)
add_hook_opts = get_option('add_hook_opts')
# Has tracer been started?
if not tracer.is_started() or get_option('force'):
# FIXME: should filter out opts not for tracer
tracer_start_opts = default.START_OPTS.copy()
if opts:
tracer_start_opts.update(opts.get('tracer_start', {}))
tracer_start_opts['trace_fn'] = self.trace_dispatch
tracer_start_opts['add_hook_opts'] = add_hook_opts
tracer.start(tracer_start_opts)
elif not tracer.find_hook(self.trace_dispatch):
tracer.add_hook(self.trace_dispatch, add_hook_opts)
pass
self.execution_status = 'Running'
finally:
self.trace_hook_suspend = False
return
def start(self, opts=None):
""" We've already created a debugger object, but here we start
debugging in earnest. We can also turn off debugging (but have
the hooks suspended or not) using 'stop'.
'opts' is a hash of every known value you might want to set when
starting the debugger. See START_OPTS of module default.
"""
# The below is our fancy equivalent of:
# sys.settrace(self._trace_dispatch)
try:
self.trace_hook_suspend = True
get_option = lambda key: Mmisc.option_set(opts, key,
default.START_OPTS)
add_hook_opts = get_option('add_hook_opts')
# Has tracer been started?
if not tracer.is_started() or get_option('force'):
# FIXME: should filter out opts not for tracer
# Also, if we use opts.copy we need to check for 'None'.
tracer_start_opts = default.START_OPTS.copy()
tracer_start_opts['trace_fn'] = self.trace_dispatch
tracer_start_opts['add_hook_opts'] = add_hook_opts
tracer.start(tracer_start_opts)
elif not tracer.find_hook(self.trace_dispatch):
tracer.add_hook(self.trace_dispatch, add_hook_opts)
pass
self.execution_status = 'Running'
finally:
self.trace_hook_suspend = False
return
def test_basic(self):
"""Basic sanity and status testing."""
tracer.HOOKS = []
self.assertEqual(0, tracer.size())
self.assertEqual(False, tracer.is_started())
tracer.start()
self.assertEqual(True, tracer.is_started())
tracer.stop()
self.assertEqual(False, tracer.is_started())
self.assertEqual(1, tracer.add_hook(my_trace_dispatch,
{'backlevel': 1}))
self.assertEqual(0, len(trace_lines))
tracer.start()
self.assertEqual(0, len(trace_lines))
self.assertEqual(True, tracer.is_started())
self.assertEqual(
0, tracer.remove_hook(my_trace_dispatch, stop_if_empty=True))
self.assertEqual(False, tracer.is_started())
self.assertEqual(
1,
tracer.add_hook(my_trace_dispatch, {
'start': True,
'backlevel': 1
}))
self.assertEqual(True, tracer.is_started())
tracer.clear_hooks_and_stop()
return
def stop(self, options=None):
# Our version of:
# sys.settrace(None)
try:
self.trace_hook_suspend = True
get_option = lambda key: Mmisc.option_set(options, key,
default.STOP_OPTS)
args = [self.trace_dispatch]
remove = get_option('remove')
if remove:
args.append(remove)
pass
if tracer.is_started():
try:
tracer.remove_hook(*args)
except LookupError:
pass
pass
finally:
self.trace_hook_suspend = False
return
def stop(self, options=None):
# Our version of:
# pdb.set_trace(None)
try:
self.trace_hook_suspend = True
get_option = lambda key: Mmisc.option_set(options, key,
default.STOP_OPTS)
args = [self.trace_dispatch]
remove = get_option('remove')
if remove:
args.append(remove)
pass
if tracer.is_started():
try:
tracer.remove_hook(*args)
except LookupError:
pass
pass
finally:
self.trace_hook_suspend = False
return
def is_started(self):
'''Return True if debugging is in progress.'''
return (tracer.is_started() and
not self.trace_hook_suspend
and tracer.find_hook(self.trace_dispatch))
def is_started(self):
'''Return True if debugging is in progress.'''
return (tracer.is_started() and
not self.trace_hook_suspend
and tracer.find_hook(self.trace_dispatch))
