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<font color="#ffffff" face="helvetica, arial"> <br><big><big><strong><a href="telemetry.html"><font color="#ffffff">telemetry</font></a>.<a href="telemetry.internal.html"><font color="#ffffff">internal</font></a>.<a href="telemetry.internal.platform.html"><font color="#ffffff">platform</font></a>.tracing_agent</strong></big></big></font></td
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><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="../telemetry/internal/platform/tracing_agent/__init__.py">telemetry/internal/platform/tracing_agent/__init__.py</a></font></td></tr></table>
<p><tt># Copyright 2014 The Chromium Authors. All rights reserved.<br>
# Use of this source code is governed by a BSD-style license that can be<br>
# found in the LICENSE file.</tt></p>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Package Contents</strong></big></font></td></tr>
<tr><td bgcolor="#aa55cc"><tt> </tt></td><td> </td>
<td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="telemetry.internal.platform.tracing_agent.chrome_tracing_agent.html">chrome_tracing_agent</a><br>
<a href="telemetry.internal.platform.tracing_agent.chrome_tracing_agent_unittest.html">chrome_tracing_agent_unittest</a><br>
</td><td width="25%" valign=top><a href="telemetry.internal.platform.tracing_agent.chrome_tracing_devtools_manager.html">chrome_tracing_devtools_manager</a><br>
<a href="telemetry.internal.platform.tracing_agent.display_tracing_agent.html">display_tracing_agent</a><br>
</td><td width="25%" valign=top><a href="telemetry.internal.platform.tracing_agent.display_tracing_agent_unittest.html">display_tracing_agent_unittest</a><br>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Classes</strong></big></font></td></tr>
<tr><td bgcolor="#ee77aa"><tt> </tt></td><td> </td>
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<dt><font face="helvetica, arial"><a href="__builtin__.html#object">__builtin__.object</a>
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<dt><font face="helvetica, arial"><a href="telemetry.internal.platform.tracing_agent.html#TracingAgent">TracingAgent</a>
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<font color="#000000" face="helvetica, arial"><a name="TracingAgent">class <strong>TracingAgent</strong></a>(<a href="__builtin__.html#object">__builtin__.object</a>)</font></td></tr>
<tr bgcolor="#ffc8d8"><td rowspan=2><tt> </tt></td>
<td colspan=2><tt>A tracing agent provided by the platform.<br>
<br>
A tracing agent can gather data with <a href="#TracingAgent-Start">Start</a>() until <a href="#TracingAgent-Stop">Stop</a>().<br>
Before constructing an <a href="#TracingAgent">TracingAgent</a>, check whether it's supported on the<br>
platform with IsSupported method first.<br>
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NOTE: All subclasses of <a href="#TracingAgent">TracingAgent</a> must not change the constructor's<br>
parameters so the agents can be dynamically constructed in<br>
tracing_controller_backend.<br> </tt></td></tr>
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<td width="100%">Methods defined here:<br>
<dl><dt><a name="TracingAgent-Start"><strong>Start</strong></a>(self, trace_options, category_filter, timeout)</dt><dd><tt>Override to add tracing agent's custom logic to start tracing.<br>
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Depending on trace_options and category_filter, the tracing agent may choose<br>
to start or not start tracing.<br>
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Args:<br>
trace_options: an instance of tracing_options.TracingOptions that<br>
control which core tracing systems should be enabled.<br>
category_filter: an instance of<br>
tracing_category_filter.TracingCategoryFilter<br>
timeout: number of seconds that this tracing agent should try to start<br>
tracing until time out.<br>
<br>
Returns:<br>
True if tracing agent started succesfully.</tt></dd></dl>
<dl><dt><a name="TracingAgent-Stop"><strong>Stop</strong></a>(self, trace_data_builder)</dt><dd><tt>Override to add tracing agent's custom logic to stop tracing.<br>
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<a href="#TracingAgent-Stop">Stop</a>() should guarantee tracing is stopped, even if there may be exception.</tt></dd></dl>
<dl><dt><a name="TracingAgent-__init__"><strong>__init__</strong></a>(self, platform_backend)</dt></dl>
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Class methods defined here:<br>
<dl><dt><a name="TracingAgent-IsSupported"><strong>IsSupported</strong></a>(cls, _platform_backend)<font color="#909090"><font face="helvetica, arial"> from <a href="__builtin__.html#type">__builtin__.type</a></font></font></dt></dl>
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Data descriptors defined here:<br>
<dl><dt><strong>__dict__</strong></dt>
<dd><tt>dictionary for instance variables (if defined)</tt></dd>
</dl>
<dl><dt><strong>__weakref__</strong></dt>
<dd><tt>list of weak references to the object (if defined)</tt></dd>
</dl>
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