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1 # Copyright 2014 The Chromium Authors. All rights reserved. | 1 # Copyright 2014 The Chromium Authors. All rights reserved. |
2 # Use of this source code is governed by a BSD-style license that can be | 2 # Use of this source code is governed by a BSD-style license that can be |
3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
4 | 4 |
5 import os | 5 import os |
6 | 6 |
| 7 from telemetry.core import discover |
7 from telemetry.core import util | 8 from telemetry.core import util |
8 from telemetry.internal.platform import tracing_agent | 9 from telemetry.internal.platform import tracing_agent |
9 from telemetry.internal.platform.tracing_agent import chrome_tracing_agent | 10 from telemetry.internal.platform.tracing_agent import chrome_tracing_agent |
10 from telemetry.timeline import trace_data as trace_data_module | 11 from telemetry.timeline import trace_data as trace_data_module |
11 from telemetry.timeline import tracing_category_filter | 12 from telemetry.timeline import tracing_category_filter |
12 from telemetry.timeline import tracing_options | 13 from telemetry.timeline import tracing_options |
13 from telemetry.util import classes_util | |
14 | 14 |
15 | 15 |
16 def _IterAllTracingAgentClasses(): | 16 def _IterAllTracingAgentClasses(): |
17 tracing_agent_dir = os.path.join( | 17 tracing_agent_dir = os.path.join( |
18 os.path.dirname(os.path.realpath(__file__)), 'tracing_agent') | 18 os.path.dirname(os.path.realpath(__file__)), 'tracing_agent') |
19 return classes_util.DiscoverClasses( | 19 return discover.DiscoverClasses( |
20 tracing_agent_dir, util.GetTelemetryDir(), tracing_agent.TracingAgent) | 20 tracing_agent_dir, util.GetTelemetryDir(), |
| 21 tracing_agent.TracingAgent).itervalues() |
21 | 22 |
22 | 23 |
23 class TracingControllerBackend(object): | 24 class TracingControllerBackend(object): |
24 def __init__(self, platform_backend): | 25 def __init__(self, platform_backend): |
25 self._platform_backend = platform_backend | 26 self._platform_backend = platform_backend |
26 self._current_trace_options = None | 27 self._current_trace_options = None |
27 self._current_category_filter = None | 28 self._current_category_filter = None |
28 self._current_chrome_tracing_agent = None | 29 self._current_chrome_tracing_agent = None |
29 self._supported_agents_classes = [ | 30 self._supported_agents_classes = [ |
30 agent_classes for agent_classes in _IterAllTracingAgentClasses() if | 31 agent_classes for agent_classes in _IterAllTracingAgentClasses() if |
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68 self._current_category_filter = None | 69 self._current_category_filter = None |
69 return trace_data_builder.AsData() | 70 return trace_data_builder.AsData() |
70 | 71 |
71 def IsChromeTracingSupported(self): | 72 def IsChromeTracingSupported(self): |
72 return chrome_tracing_agent.ChromeTracingAgent.IsSupported( | 73 return chrome_tracing_agent.ChromeTracingAgent.IsSupported( |
73 self._platform_backend) | 74 self._platform_backend) |
74 | 75 |
75 @property | 76 @property |
76 def is_tracing_running(self): | 77 def is_tracing_running(self): |
77 return self._current_trace_options != None | 78 return self._current_trace_options != None |
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