def _IterInspectorBackends(self):
for client in chrome_tracing_devtools_manager.GetDevToolsClients(
self._platform_backend):
context_map = client.GetUpdatedInspectableContexts()
for context in context_map.contexts:
if context['type'] in ['iframe', 'page', 'webview']:
yield context_map.GetInspectorBackend(context['id'])
def StopAgentTracing(self, trace_data_builder):
if not self._trace_config:
raise ChromeTracingStoppedError(
'Tracing is not running on platform backend %s.' %
self._platform_backend)
if self.IsStartupTracingSupported(self._platform_backend):
self._RemoveTraceConfigFile()
# We get all DevTools clients including the stale ones, so that we get an
# exception if there is a stale client. This is because we will potentially
# lose data if there is a stale client.
devtools_clients = (chrome_tracing_devtools_manager.GetDevToolsClients(
self._platform_backend))
raised_execption_messages = []
for client in devtools_clients:
try:
client.StopChromeTracing(trace_data_builder)
except Exception:
raised_execption_messages.append(
'Error when trying to stop Chrome tracing on devtools at port %s:\n%s'
% (client.remote_port, ''.join(
traceback.format_exception(*sys.exc_info()))))
if (self._trace_config.enable_android_graphics_memtrack
and self._platform_backend.GetOSName() == 'android'):
self._platform_backend.SetGraphicsMemoryTrackingEnabled(False)
self._trace_config = None
if raised_execption_messages:
raise ChromeTracingStoppedError(
'Exceptions raised when trying to stop Chrome devtool tracing:\n'
+ '\n'.join(raised_execption_messages))
def StopAgentTracing(self):
if not self._trace_config:
raise ChromeTracingStoppedError(
'Tracing is not running on platform backend %s.' %
self._platform_backend)
self._RemoveTraceConfigFile()
# We get all DevTools clients including the stale ones, so that we get an
# exception if there is a stale client. This is because we will potentially
# lose data if there is a stale client.
# TODO(crbug.com/1029812): Check if this actually works. It looks like the
# call to GetActiveDevToolsClients in RecordClockSyncMarker would have
# wiped out the stale clients anyway.
devtools_clients = (chrome_tracing_devtools_manager.GetDevToolsClients(
self._platform_backend))
raised_exception_messages = []
assert len(self._previously_responsive_devtools) == 0
for client in devtools_clients:
try:
client.StopChromeTracing()
self._previously_responsive_devtools.append(client)
except Exception: # pylint: disable=broad-except
raised_exception_messages.append(
"""Error when trying to stop Chrome tracing
on devtools at port %s:\n%s""" % (client.remote_port, ''.join(
traceback.format_exception(*sys.exc_info()))))
if (self._trace_config.enable_android_graphics_memtrack
and self._platform_backend.GetOSName() == 'android'):
self._platform_backend.SetGraphicsMemoryTrackingEnabled(False)
self._trace_config = None
if raised_exception_messages:
raise ChromeTracingStoppedError(
'Exceptions raised when trying to stop Chrome devtool tracing:\n'
+ '\n'.join(raised_exception_messages))
def _IterFirstTabBackends(self):
for client in chrome_tracing_devtools_manager.GetDevToolsClients(
self._platform_backend):
backend = client.FirstTabBackend()
if backend is not None:
yield backend
