1 2<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> 3<html><head><title>Python: module telemetry.internal.platform.desktop_platform_backend</title> 4<meta charset="utf-8"> 5</head><body bgcolor="#f0f0f8"> 6 7<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="heading"> 8<tr bgcolor="#7799ee"> 9<td valign=bottom> <br> 10<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>.desktop_platform_backend</strong></big></big></font></td 11><td align=right valign=bottom 12><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="../telemetry/internal/platform/desktop_platform_backend.py">telemetry/internal/platform/desktop_platform_backend.py</a></font></td></tr></table> 13 <p><tt># Copyright 2013 The Chromium Authors. All rights reserved.<br> 14# Use of this source code is governed by a BSD-style license that can be<br> 15# found in the LICENSE file.</tt></p> 16<p> 17<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section"> 18<tr bgcolor="#aa55cc"> 19<td colspan=3 valign=bottom> <br> 20<font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr> 21 22<tr><td bgcolor="#aa55cc"><tt> </tt></td><td> </td> 23<td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="telemetry.internal.util.binary_manager.html">telemetry.internal.util.binary_manager</a><br> 24</td><td width="25%" valign=top><a href="os.html">os</a><br> 25</td><td width="25%" valign=top><a href="telemetry.internal.platform.platform_backend.html">telemetry.internal.platform.platform_backend</a><br> 26</td><td width="25%" valign=top><a href="subprocess.html">subprocess</a><br> 27</td></tr></table></td></tr></table><p> 28<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section"> 29<tr bgcolor="#ee77aa"> 30<td colspan=3 valign=bottom> <br> 31<font color="#ffffff" face="helvetica, arial"><big><strong>Classes</strong></big></font></td></tr> 32 33<tr><td bgcolor="#ee77aa"><tt> </tt></td><td> </td> 34<td width="100%"><dl> 35<dt><font face="helvetica, arial"><a href="telemetry.internal.platform.platform_backend.html#PlatformBackend">telemetry.internal.platform.platform_backend.PlatformBackend</a>(<a href="__builtin__.html#object">__builtin__.object</a>) 36</font></dt><dd> 37<dl> 38<dt><font face="helvetica, arial"><a href="telemetry.internal.platform.desktop_platform_backend.html#DesktopPlatformBackend">DesktopPlatformBackend</a> 39</font></dt></dl> 40</dd> 41</dl> 42 <p> 43<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section"> 44<tr bgcolor="#ffc8d8"> 45<td colspan=3 valign=bottom> <br> 46<font color="#000000" face="helvetica, arial"><a name="DesktopPlatformBackend">class <strong>DesktopPlatformBackend</strong></a>(<a href="telemetry.internal.platform.platform_backend.html#PlatformBackend">telemetry.internal.platform.platform_backend.PlatformBackend</a>)</font></td></tr> 47 48<tr><td bgcolor="#ffc8d8"><tt> </tt></td><td> </td> 49<td width="100%"><dl><dt>Method resolution order:</dt> 50<dd><a href="telemetry.internal.platform.desktop_platform_backend.html#DesktopPlatformBackend">DesktopPlatformBackend</a></dd> 51<dd><a href="telemetry.internal.platform.platform_backend.html#PlatformBackend">telemetry.internal.platform.platform_backend.PlatformBackend</a></dd> 52<dd><a href="__builtin__.html#object">__builtin__.object</a></dd> 53</dl> 54<hr> 55Methods defined here:<br> 56<dl><dt><a name="DesktopPlatformBackend-FlushSystemCacheForDirectory"><strong>FlushSystemCacheForDirectory</strong></a>(self, directory)</dt></dl> 57 58<dl><dt><a name="DesktopPlatformBackend-GetDeviceTypeName"><strong>GetDeviceTypeName</strong></a>(self)</dt></dl> 59 60<hr> 61Methods inherited from <a href="telemetry.internal.platform.platform_backend.html#PlatformBackend">telemetry.internal.platform.platform_backend.PlatformBackend</a>:<br> 62<dl><dt><a name="DesktopPlatformBackend-CanCaptureVideo"><strong>CanCaptureVideo</strong></a>(self)</dt></dl> 63 64<dl><dt><a name="DesktopPlatformBackend-CanFlushIndividualFilesFromSystemCache"><strong>CanFlushIndividualFilesFromSystemCache</strong></a>(self)</dt></dl> 65 66<dl><dt><a name="DesktopPlatformBackend-CanLaunchApplication"><strong>CanLaunchApplication</strong></a>(self, application)</dt></dl> 67 68<dl><dt><a name="DesktopPlatformBackend-CanMeasurePerApplicationPower"><strong>CanMeasurePerApplicationPower</strong></a>(self)</dt></dl> 69 70<dl><dt><a name="DesktopPlatformBackend-CanMonitorNetworkData"><strong>CanMonitorNetworkData</strong></a>(self)</dt></dl> 71 72<dl><dt><a name="DesktopPlatformBackend-CanMonitorPower"><strong>CanMonitorPower</strong></a>(self)</dt></dl> 73 74<dl><dt><a name="DesktopPlatformBackend-CanMonitorThermalThrottling"><strong>CanMonitorThermalThrottling</strong></a>(self)</dt></dl> 75 76<dl><dt><a name="DesktopPlatformBackend-CanTakeScreenshot"><strong>CanTakeScreenshot</strong></a>(self)</dt></dl> 77 78<dl><dt><a name="DesktopPlatformBackend-CooperativelyShutdown"><strong>CooperativelyShutdown</strong></a>(self, proc, app_name)</dt><dd><tt>Cooperatively shut down the given process from subprocess.Popen.<br> 79 <br> 80Currently this is only implemented on Windows. See<br> 81crbug.com/424024 for background on why it was added.<br> 82 <br> 83Args:<br> 84 proc: a process object returned from subprocess.Popen.<br> 85 app_name: on Windows, is the prefix of the application's window<br> 86 class name that should be searched for. This helps ensure<br> 87 that only the application's windows are closed.<br> 88 <br> 89Returns True if it is believed the attempt succeeded.</tt></dd></dl> 90 91<dl><dt><a name="DesktopPlatformBackend-DidCreateBrowser"><strong>DidCreateBrowser</strong></a>(self, browser, browser_backend)</dt></dl> 92 93<dl><dt><a name="DesktopPlatformBackend-DidStartBrowser"><strong>DidStartBrowser</strong></a>(self, browser, browser_backend)</dt></dl> 94 95<dl><dt><a name="DesktopPlatformBackend-FlushDnsCache"><strong>FlushDnsCache</strong></a>(self)</dt></dl> 96 97<dl><dt><a name="DesktopPlatformBackend-FlushEntireSystemCache"><strong>FlushEntireSystemCache</strong></a>(self)</dt></dl> 98 99<dl><dt><a name="DesktopPlatformBackend-GetArchName"><strong>GetArchName</strong></a>(self)</dt></dl> 100 101<dl><dt><a name="DesktopPlatformBackend-GetChildPids"><strong>GetChildPids</strong></a>(self, pid)</dt></dl> 102 103<dl><dt><a name="DesktopPlatformBackend-GetCommandLine"><strong>GetCommandLine</strong></a>(self, pid)</dt></dl> 104 105<dl><dt><a name="DesktopPlatformBackend-GetCpuStats"><strong>GetCpuStats</strong></a>(self, pid)</dt></dl> 106 107<dl><dt><a name="DesktopPlatformBackend-GetCpuTimestamp"><strong>GetCpuTimestamp</strong></a>(self)</dt></dl> 108 109<dl><dt><a name="DesktopPlatformBackend-GetMemoryStats"><strong>GetMemoryStats</strong></a>(self, pid)</dt></dl> 110 111<dl><dt><a name="DesktopPlatformBackend-GetNetworkData"><strong>GetNetworkData</strong></a>(self, browser)</dt></dl> 112 113<dl><dt><a name="DesktopPlatformBackend-GetOSName"><strong>GetOSName</strong></a>(self)</dt></dl> 114 115<dl><dt><a name="DesktopPlatformBackend-GetOSVersionName"><strong>GetOSVersionName</strong></a>(self)</dt></dl> 116 117<dl><dt><a name="DesktopPlatformBackend-GetRemotePort"><strong>GetRemotePort</strong></a>(self, port)</dt></dl> 118 119<dl><dt><a name="DesktopPlatformBackend-GetSystemCommitCharge"><strong>GetSystemCommitCharge</strong></a>(self)</dt></dl> 120 121<dl><dt><a name="DesktopPlatformBackend-GetSystemTotalPhysicalMemory"><strong>GetSystemTotalPhysicalMemory</strong></a>(self)</dt></dl> 122 123<dl><dt><a name="DesktopPlatformBackend-HasBeenThermallyThrottled"><strong>HasBeenThermallyThrottled</strong></a>(self)</dt></dl> 124 125<dl><dt><a name="DesktopPlatformBackend-InitPlatformBackend"><strong>InitPlatformBackend</strong></a>(self)</dt></dl> 126 127<dl><dt><a name="DesktopPlatformBackend-InstallApplication"><strong>InstallApplication</strong></a>(self, application)</dt></dl> 128 129<dl><dt><a name="DesktopPlatformBackend-IsApplicationRunning"><strong>IsApplicationRunning</strong></a>(self, application)</dt></dl> 130 131<dl><dt><a name="DesktopPlatformBackend-IsCooperativeShutdownSupported"><strong>IsCooperativeShutdownSupported</strong></a>(self)</dt><dd><tt>Indicates whether CooperativelyShutdown, below, is supported.<br> 132It is not necessary to implement it on all platforms.</tt></dd></dl> 133 134<dl><dt><a name="DesktopPlatformBackend-IsDisplayTracingSupported"><strong>IsDisplayTracingSupported</strong></a>(self)</dt></dl> 135 136<dl><dt><a name="DesktopPlatformBackend-IsThermallyThrottled"><strong>IsThermallyThrottled</strong></a>(self)</dt></dl> 137 138<dl><dt><a name="DesktopPlatformBackend-LaunchApplication"><strong>LaunchApplication</strong></a>(self, application, parameters<font color="#909090">=None</font>, elevate_privilege<font color="#909090">=False</font>)</dt></dl> 139 140<dl><dt><a name="DesktopPlatformBackend-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> 141Args:<br> 142 path: path in request.<br> 143 timeout: timeout.<br> 144 retries: num of retries.<br> 145Return:<br> 146 Whether the path exists on the target platform.</tt></dd></dl> 147 148<dl><dt><a name="DesktopPlatformBackend-PurgeUnpinnedMemory"><strong>PurgeUnpinnedMemory</strong></a>(self)</dt></dl> 149 150<dl><dt><a name="DesktopPlatformBackend-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> 151 <br> 152Which MSRs are available depends on the CPU model.<br> 153On systems with multiple CPUs, this function may run on any CPU.<br> 154 <br> 155Args:<br> 156 msr_number: The number of the register to read.<br> 157 start: The least significant bit to read, zero-indexed.<br> 158 (Said another way, the number of bits to right-shift the MSR value.)<br> 159 length: The number of bits to read. MSRs are 64 bits, even on 32-bit CPUs.</tt></dd></dl> 160 161<dl><dt><a name="DesktopPlatformBackend-SetFullPerformanceModeEnabled"><strong>SetFullPerformanceModeEnabled</strong></a>(self, enabled)</dt></dl> 162 163<dl><dt><a name="DesktopPlatformBackend-SetPlatform"><strong>SetPlatform</strong></a>(self, platform)</dt></dl> 164 165<dl><dt><a name="DesktopPlatformBackend-StartDisplayTracing"><strong>StartDisplayTracing</strong></a>(self)</dt><dd><tt>Start gathering a trace with frame timestamps close to physical<br> 166display.</tt></dd></dl> 167 168<dl><dt><a name="DesktopPlatformBackend-StartMonitoringPower"><strong>StartMonitoringPower</strong></a>(self, browser)</dt></dl> 169 170<dl><dt><a name="DesktopPlatformBackend-StartVideoCapture"><strong>StartVideoCapture</strong></a>(self, min_bitrate_mbps)</dt></dl> 171 172<dl><dt><a name="DesktopPlatformBackend-StopDisplayTracing"><strong>StopDisplayTracing</strong></a>(self)</dt><dd><tt>Stop gathering a trace with frame timestamps close to physical display.<br> 173 <br> 174Returns a raw tracing events that contains the timestamps of physical<br> 175display.</tt></dd></dl> 176 177<dl><dt><a name="DesktopPlatformBackend-StopMonitoringPower"><strong>StopMonitoringPower</strong></a>(self)</dt></dl> 178 179<dl><dt><a name="DesktopPlatformBackend-StopVideoCapture"><strong>StopVideoCapture</strong></a>(self)</dt></dl> 180 181<dl><dt><a name="DesktopPlatformBackend-TakeScreenshot"><strong>TakeScreenshot</strong></a>(self, file_path)</dt></dl> 182 183<dl><dt><a name="DesktopPlatformBackend-WillCloseBrowser"><strong>WillCloseBrowser</strong></a>(self, browser, browser_backend)</dt></dl> 184 185<dl><dt><a name="DesktopPlatformBackend-__init__"><strong>__init__</strong></a>(self, device<font color="#909090">=None</font>)</dt><dd><tt>Initalize an instance of <a href="telemetry.internal.platform.platform_backend.html#PlatformBackend">PlatformBackend</a> from a device optionally.<br> 186Call sites need to use SupportsDevice before intialization to check<br> 187whether this platform backend supports the device.<br> 188If device is None, this constructor returns the host platform backend<br> 189which telemetry is running on.<br> 190 <br> 191Args:<br> 192 device: an instance of telemetry.core.platform.device.Device.</tt></dd></dl> 193 194<hr> 195Class methods inherited from <a href="telemetry.internal.platform.platform_backend.html#PlatformBackend">telemetry.internal.platform.platform_backend.PlatformBackend</a>:<br> 196<dl><dt><a name="DesktopPlatformBackend-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> 197 198<dl><dt><a name="DesktopPlatformBackend-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> 199for the host device which telemetry is running on.</tt></dd></dl> 200 201<dl><dt><a name="DesktopPlatformBackend-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> 202device.</tt></dd></dl> 203 204<hr> 205Data descriptors inherited from <a href="telemetry.internal.platform.platform_backend.html#PlatformBackend">telemetry.internal.platform.platform_backend.PlatformBackend</a>:<br> 206<dl><dt><strong>__dict__</strong></dt> 207<dd><tt>dictionary for instance variables (if defined)</tt></dd> 208</dl> 209<dl><dt><strong>__weakref__</strong></dt> 210<dd><tt>list of weak references to the object (if defined)</tt></dd> 211</dl> 212<dl><dt><strong>forwarder_factory</strong></dt> 213</dl> 214<dl><dt><strong>is_host_platform</strong></dt> 215</dl> 216<dl><dt><strong>is_video_capture_running</strong></dt> 217</dl> 218<dl><dt><strong>network_controller_backend</strong></dt> 219</dl> 220<dl><dt><strong>platform</strong></dt> 221</dl> 222<dl><dt><strong>running_browser_backends</strong></dt> 223</dl> 224<dl><dt><strong>tracing_controller_backend</strong></dt> 225</dl> 226<dl><dt><strong>wpr_ca_cert_path</strong></dt> 227</dl> 228<dl><dt><strong>wpr_http_device_port</strong></dt> 229</dl> 230<dl><dt><strong>wpr_https_device_port</strong></dt> 231</dl> 232</td></tr></table></td></tr></table> 233</body></html>