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Unified Diff: tools/telemetry/telemetry/internal/platform/tracing_controller_backend.py

Issue 1647513002: Delete tools/telemetry. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 11 months ago
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Index: tools/telemetry/telemetry/internal/platform/tracing_controller_backend.py
diff --git a/tools/telemetry/telemetry/internal/platform/tracing_controller_backend.py b/tools/telemetry/telemetry/internal/platform/tracing_controller_backend.py
deleted file mode 100644
index b7cea403954af41c7380fbf07dfd4269de61b08b..0000000000000000000000000000000000000000
--- a/tools/telemetry/telemetry/internal/platform/tracing_controller_backend.py
+++ /dev/null
@@ -1,133 +0,0 @@
-# Copyright 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import os
-import sys
-import traceback
-
-from telemetry.core import discover
-from telemetry.core import util
-from telemetry.internal.platform import tracing_agent
-from telemetry.internal.platform.tracing_agent import chrome_tracing_agent
-from telemetry.timeline import trace_data as trace_data_module
-from telemetry.timeline import tracing_config
-
-
-def _IterAllTracingAgentClasses():
- tracing_agent_dir = os.path.join(
- os.path.dirname(os.path.realpath(__file__)), 'tracing_agent')
- return discover.DiscoverClasses(
- tracing_agent_dir, util.GetTelemetryDir(),
- tracing_agent.TracingAgent).itervalues()
-
-
-class TracingControllerStoppedError(Exception):
- pass
-
-
-class TracingControllerBackend(object):
- def __init__(self, platform_backend):
- self._platform_backend = platform_backend
- self._current_chrome_tracing_agent = None
- self._current_config = None
- self._supported_agents_classes = [
- agent_classes for agent_classes in _IterAllTracingAgentClasses() if
- agent_classes.IsSupported(platform_backend)]
- self._active_agents_instances = []
-
- def StartTracing(self, config, timeout):
- if self.is_tracing_running:
- return False
-
- assert isinstance(config, tracing_config.TracingConfig)
- assert len(self._active_agents_instances) == 0
-
- self._current_config = config
- # Hack: chrome tracing agent may only depend on the number of alive chrome
- # devtools processes, rather platform (when startup tracing is not
- # supported), hence we add it to the list of supported agents here if it was
- # not added.
- if (chrome_tracing_agent.ChromeTracingAgent.IsSupported(
- self._platform_backend) and
- not chrome_tracing_agent.ChromeTracingAgent in
- self._supported_agents_classes):
- self._supported_agents_classes.append(
- chrome_tracing_agent.ChromeTracingAgent)
-
- for agent_class in self._supported_agents_classes:
- agent = agent_class(self._platform_backend)
- if agent.StartAgentTracing(config, timeout):
- self._active_agents_instances.append(agent)
-
- def StopTracing(self):
- assert self.is_tracing_running, 'Can only stop tracing when tracing is on.'
- trace_data_builder = trace_data_module.TraceDataBuilder()
-
- raised_execption_messages = []
- for agent in self._active_agents_instances:
- try:
- agent.StopAgentTracing(trace_data_builder)
- except Exception:
- raised_execption_messages.append(
- ''.join(traceback.format_exception(*sys.exc_info())))
-
- self._active_agents_instances = []
- self._current_config = None
-
- if raised_execption_messages:
- raise TracingControllerStoppedError(
- 'Exceptions raised when trying to stop tracing:\n' +
- '\n'.join(raised_execption_messages))
-
- return trace_data_builder.AsData()
-
- def StartAgentTracing(self, config, timeout):
- # TODO(rnephew): Used when implementing clock sync.
- pass
-
- def StopAgentTracing(self, trace_data_builder):
- # TODO(rnephew) Used when implementing clock sync.
- pass
-
- def SupportsExplicitClockSync(self):
- return False
-
- def RecordClockSyncMarker(self, sync_id):
- """ Record clock sync event.
-
- Args:
- sync_id: Unqiue id for sync event.
- """
- # TODO(rnephew): Implement clock sync for trace controller.
- del sync_id # unused
-
- def IsChromeTracingSupported(self):
- return chrome_tracing_agent.ChromeTracingAgent.IsSupported(
- self._platform_backend)
-
- @property
- def is_tracing_running(self):
- return self._current_config != None
-
- def _GetActiveChromeTracingAgent(self):
- if not self.is_tracing_running:
- return None
- if not self._current_config.enable_chrome_trace:
- return None
- for agent in self._active_agents_instances:
- if isinstance(agent, chrome_tracing_agent.ChromeTracingAgent):
- return agent
- return None
-
- def GetChromeTraceConfig(self):
- agent = self._GetActiveChromeTracingAgent()
- if agent:
- return agent.trace_config
- return None
-
- def GetChromeTraceConfigFile(self):
- agent = self._GetActiveChromeTracingAgent()
- if agent:
- return agent.trace_config_file
- return None

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