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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><title>Python: module telemetry.internal.platform.posix_platform_backend</title>
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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>.posix_platform_backend</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/posix_platform_backend.py">telemetry/internal/platform/posix_platform_backend.py</a></font></td></tr></table>
<p><tt># Copyright 2013 The Chromium Authors. All rights reserved.<br>
# Use of this source code is governed by a BSD-style license that can be<br>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr>
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<dt><font face="helvetica, arial"><a href="telemetry.internal.platform.desktop_platform_backend.html#DesktopPlatformBackend">telemetry.internal.platform.desktop_platform_backend.DesktopPlatformBackend</a>(<a href="telemetry.internal.platform.platform_backend.html#PlatformBackend">telemetry.internal.platform.platform_backend.PlatformBackend</a>)
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<dt><font face="helvetica, arial"><a href="telemetry.internal.platform.posix_platform_backend.html#PosixPlatformBackend">PosixPlatformBackend</a>
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<font color="#000000" face="helvetica, arial"><a name="PosixPlatformBackend">class <strong>PosixPlatformBackend</strong></a>(<a href="telemetry.internal.platform.desktop_platform_backend.html#DesktopPlatformBackend">telemetry.internal.platform.desktop_platform_backend.DesktopPlatformBackend</a>)</font></td></tr>
<tr><td bgcolor="#ffc8d8"><tt> </tt></td><td> </td>
<td width="100%"><dl><dt>Method resolution order:</dt>
<dd><a href="telemetry.internal.platform.posix_platform_backend.html#PosixPlatformBackend">PosixPlatformBackend</a></dd>
<dd><a href="telemetry.internal.platform.desktop_platform_backend.html#DesktopPlatformBackend">telemetry.internal.platform.desktop_platform_backend.DesktopPlatformBackend</a></dd>
<dd><a href="telemetry.internal.platform.platform_backend.html#PlatformBackend">telemetry.internal.platform.platform_backend.PlatformBackend</a></dd>
<dd><a href="__builtin__.html#object">__builtin__.object</a></dd>
</dl>
<hr>
Methods defined here:<br>
<dl><dt><a name="PosixPlatformBackend-CanLaunchApplication"><strong>CanLaunchApplication</strong></a>(self, application)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetChildPids"><strong>GetChildPids</strong></a>(self, pid)</dt><dd><tt>Returns a list of child pids of |pid|.</tt></dd></dl>
<dl><dt><a name="PosixPlatformBackend-GetCommandLine"><strong>GetCommandLine</strong></a>(self, pid)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetFileContents"><strong>GetFileContents</strong></a>(self, path)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetPsOutput"><strong>GetPsOutput</strong></a>(self, columns, pid<font color="#909090">=None</font>)</dt><dd><tt>Returns output of the 'ps' command as a list of lines.<br>
Subclass should override this function.<br>
<br>
Args:<br>
columns: A list of require columns, e.g., ['pid', 'pss'].<br>
pid: If not None, returns only the information of the process<br>
with the pid.</tt></dd></dl>
<dl><dt><a name="PosixPlatformBackend-IsApplicationRunning"><strong>IsApplicationRunning</strong></a>(self, application)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-LaunchApplication"><strong>LaunchApplication</strong></a>(self, application, parameters<font color="#909090">=None</font>, elevate_privilege<font color="#909090">=False</font>)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-RunCommand"><strong>RunCommand</strong></a>(self, args)</dt></dl>
<hr>
Methods inherited from <a href="telemetry.internal.platform.desktop_platform_backend.html#DesktopPlatformBackend">telemetry.internal.platform.desktop_platform_backend.DesktopPlatformBackend</a>:<br>
<dl><dt><a name="PosixPlatformBackend-FlushSystemCacheForDirectory"><strong>FlushSystemCacheForDirectory</strong></a>(self, directory)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetDeviceTypeName"><strong>GetDeviceTypeName</strong></a>(self)</dt></dl>
<hr>
Methods inherited from <a href="telemetry.internal.platform.platform_backend.html#PlatformBackend">telemetry.internal.platform.platform_backend.PlatformBackend</a>:<br>
<dl><dt><a name="PosixPlatformBackend-CanCaptureVideo"><strong>CanCaptureVideo</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-CanFlushIndividualFilesFromSystemCache"><strong>CanFlushIndividualFilesFromSystemCache</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-CanMeasurePerApplicationPower"><strong>CanMeasurePerApplicationPower</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-CanMonitorNetworkData"><strong>CanMonitorNetworkData</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-CanMonitorPower"><strong>CanMonitorPower</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-CanMonitorThermalThrottling"><strong>CanMonitorThermalThrottling</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-CanTakeScreenshot"><strong>CanTakeScreenshot</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-CooperativelyShutdown"><strong>CooperativelyShutdown</strong></a>(self, proc, app_name)</dt><dd><tt>Cooperatively shut down the given process from subprocess.Popen.<br>
<br>
Currently this is only implemented on Windows. See<br>
crbug.com/424024 for background on why it was added.<br>
<br>
Args:<br>
proc: a process object returned from subprocess.Popen.<br>
app_name: on Windows, is the prefix of the application's window<br>
class name that should be searched for. This helps ensure<br>
that only the application's windows are closed.<br>
<br>
Returns True if it is believed the attempt succeeded.</tt></dd></dl>
<dl><dt><a name="PosixPlatformBackend-DidCreateBrowser"><strong>DidCreateBrowser</strong></a>(self, browser, browser_backend)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-DidStartBrowser"><strong>DidStartBrowser</strong></a>(self, browser, browser_backend)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-FlushDnsCache"><strong>FlushDnsCache</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-FlushEntireSystemCache"><strong>FlushEntireSystemCache</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetArchName"><strong>GetArchName</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetCpuStats"><strong>GetCpuStats</strong></a>(self, pid)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetCpuTimestamp"><strong>GetCpuTimestamp</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetMemoryStats"><strong>GetMemoryStats</strong></a>(self, pid)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetNetworkData"><strong>GetNetworkData</strong></a>(self, browser)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetOSName"><strong>GetOSName</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetOSVersionName"><strong>GetOSVersionName</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetRemotePort"><strong>GetRemotePort</strong></a>(self, port)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetSystemCommitCharge"><strong>GetSystemCommitCharge</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-GetSystemTotalPhysicalMemory"><strong>GetSystemTotalPhysicalMemory</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-HasBeenThermallyThrottled"><strong>HasBeenThermallyThrottled</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-InitPlatformBackend"><strong>InitPlatformBackend</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-InstallApplication"><strong>InstallApplication</strong></a>(self, application)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-IsCooperativeShutdownSupported"><strong>IsCooperativeShutdownSupported</strong></a>(self)</dt><dd><tt>Indicates whether CooperativelyShutdown, below, is supported.<br>
It is not necessary to implement it on all platforms.</tt></dd></dl>
<dl><dt><a name="PosixPlatformBackend-IsDisplayTracingSupported"><strong>IsDisplayTracingSupported</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-IsThermallyThrottled"><strong>IsThermallyThrottled</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-PathExists"><strong>PathExists</strong></a>(self, path, timeout<font color="#909090">=None</font>, retries<font color="#909090">=None</font>)</dt><dd><tt>Tests whether the given path exists on the target platform.<br>
Args:<br>
path: path in request.<br>
timeout: timeout.<br>
retries: num of retries.<br>
Return:<br>
Whether the path exists on the target platform.</tt></dd></dl>
<dl><dt><a name="PosixPlatformBackend-PurgeUnpinnedMemory"><strong>PurgeUnpinnedMemory</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-ReadMsr"><strong>ReadMsr</strong></a>(self, msr_number, start<font color="#909090">=0</font>, length<font color="#909090">=64</font>)</dt><dd><tt>Read a CPU model-specific register (MSR).<br>
<br>
Which MSRs are available depends on the CPU model.<br>
On systems with multiple CPUs, this function may run on any CPU.<br>
<br>
Args:<br>
msr_number: The number of the register to read.<br>
start: The least significant bit to read, zero-indexed.<br>
(Said another way, the number of bits to right-shift the MSR value.)<br>
length: The number of bits to read. MSRs are 64 bits, even on 32-bit CPUs.</tt></dd></dl>
<dl><dt><a name="PosixPlatformBackend-SetFullPerformanceModeEnabled"><strong>SetFullPerformanceModeEnabled</strong></a>(self, enabled)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-SetPlatform"><strong>SetPlatform</strong></a>(self, platform)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-StartDisplayTracing"><strong>StartDisplayTracing</strong></a>(self)</dt><dd><tt>Start gathering a trace with frame timestamps close to physical<br>
display.</tt></dd></dl>
<dl><dt><a name="PosixPlatformBackend-StartMonitoringPower"><strong>StartMonitoringPower</strong></a>(self, browser)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-StartVideoCapture"><strong>StartVideoCapture</strong></a>(self, min_bitrate_mbps)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-StopDisplayTracing"><strong>StopDisplayTracing</strong></a>(self)</dt><dd><tt>Stop gathering a trace with frame timestamps close to physical display.<br>
<br>
Returns a raw tracing events that contains the timestamps of physical<br>
display.</tt></dd></dl>
<dl><dt><a name="PosixPlatformBackend-StopMonitoringPower"><strong>StopMonitoringPower</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-StopVideoCapture"><strong>StopVideoCapture</strong></a>(self)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-TakeScreenshot"><strong>TakeScreenshot</strong></a>(self, file_path)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-WillCloseBrowser"><strong>WillCloseBrowser</strong></a>(self, browser, browser_backend)</dt></dl>
<dl><dt><a name="PosixPlatformBackend-__init__"><strong>__init__</strong></a>(self, device<font color="#909090">=None</font>)</dt><dd><tt>Initalize an instance of PlatformBackend from a device optionally.<br>
Call sites need to use SupportsDevice before intialization to check<br>
whether this platform backend supports the device.<br>
If device is None, this constructor returns the host platform backend<br>
which telemetry is running on.<br>
<br>
Args:<br>
device: an instance of telemetry.core.platform.device.Device.</tt></dd></dl>
<hr>
Class methods inherited from <a href="telemetry.internal.platform.platform_backend.html#PlatformBackend">telemetry.internal.platform.platform_backend.PlatformBackend</a>:<br>
<dl><dt><a name="PosixPlatformBackend-CreatePlatformForDevice"><strong>CreatePlatformForDevice</strong></a>(cls, device, finder_options)<font color="#909090"><font face="helvetica, arial"> from <a href="__builtin__.html#type">__builtin__.type</a></font></font></dt></dl>
<dl><dt><a name="PosixPlatformBackend-IsPlatformBackendForHost"><strong>IsPlatformBackendForHost</strong></a>(cls)<font color="#909090"><font face="helvetica, arial"> from <a href="__builtin__.html#type">__builtin__.type</a></font></font></dt><dd><tt>Returns whether this platform backend is the platform backend to be used<br>
for the host device which telemetry is running on.</tt></dd></dl>
<dl><dt><a name="PosixPlatformBackend-SupportsDevice"><strong>SupportsDevice</strong></a>(cls, device)<font color="#909090"><font face="helvetica, arial"> from <a href="__builtin__.html#type">__builtin__.type</a></font></font></dt><dd><tt>Returns whether this platform backend supports intialization from the<br>
device.</tt></dd></dl>
<hr>
Data descriptors inherited from <a href="telemetry.internal.platform.platform_backend.html#PlatformBackend">telemetry.internal.platform.platform_backend.PlatformBackend</a>:<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>
<dl><dt><strong>forwarder_factory</strong></dt>
</dl>
<dl><dt><strong>is_host_platform</strong></dt>
</dl>
<dl><dt><strong>is_video_capture_running</strong></dt>
</dl>
<dl><dt><strong>network_controller_backend</strong></dt>
</dl>
<dl><dt><strong>platform</strong></dt>
</dl>
<dl><dt><strong>running_browser_backends</strong></dt>
</dl>
<dl><dt><strong>tracing_controller_backend</strong></dt>
</dl>
<dl><dt><strong>wpr_ca_cert_path</strong></dt>
</dl>
<dl><dt><strong>wpr_http_device_port</strong></dt>
</dl>
<dl><dt><strong>wpr_https_device_port</strong></dt>
</dl>
</td></tr></table></td></tr></table>
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