1 | /* $Id: PerformanceImpl.cpp 25860 2010-01-15 13:27:26Z vboxsync $ */
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2 |
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3 | /** @file
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4 | *
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5 | * VBox Performance API COM Classes implementation
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6 | */
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7 |
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8 | /*
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9 | * Copyright (C) 2008 Sun Microsystems, Inc.
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10 | *
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11 | * This file is part of VirtualBox Open Source Edition (OSE), as
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12 | * available from http://www.virtualbox.org. This file is free software;
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13 | * you can redistribute it and/or modify it under the terms of the GNU
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14 | * General Public License (GPL) as published by the Free Software
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15 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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16 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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17 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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18 | *
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19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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20 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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21 | * additional information or have any questions.
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22 | */
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23 |
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24 | #include "PerformanceImpl.h"
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25 |
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26 | #include "AutoCaller.h"
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27 | #include "Logging.h"
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28 |
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29 | #include <iprt/process.h>
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30 |
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31 | #include <VBox/err.h>
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32 | #include <VBox/settings.h>
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33 |
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34 | #include <vector>
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35 | #include <algorithm>
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36 | #include <functional>
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37 |
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38 | #include "Performance.h"
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39 |
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40 | static Bstr gMetricNames[] =
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41 | {
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42 | "CPU/Load/User",
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43 | "CPU/Load/User:avg",
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44 | "CPU/Load/User:min",
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45 | "CPU/Load/User:max",
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46 | "CPU/Load/Kernel",
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47 | "CPU/Load/Kernel:avg",
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48 | "CPU/Load/Kernel:min",
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49 | "CPU/Load/Kernel:max",
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50 | "CPU/Load/Idle",
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51 | "CPU/Load/Idle:avg",
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52 | "CPU/Load/Idle:min",
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53 | "CPU/Load/Idle:max",
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54 | "CPU/MHz",
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55 | "CPU/MHz:avg",
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56 | "CPU/MHz:min",
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57 | "CPU/MHz:max",
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58 | "RAM/Usage/Total",
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59 | "RAM/Usage/Total:avg",
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60 | "RAM/Usage/Total:min",
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61 | "RAM/Usage/Total:max",
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62 | "RAM/Usage/Used",
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63 | "RAM/Usage/Used:avg",
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64 | "RAM/Usage/Used:min",
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65 | "RAM/Usage/Used:max",
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66 | "RAM/Usage/Free",
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67 | "RAM/Usage/Free:avg",
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68 | "RAM/Usage/Free:min",
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69 | "RAM/Usage/Free:max",
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70 | };
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71 |
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72 | ////////////////////////////////////////////////////////////////////////////////
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73 | // PerformanceCollector class
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74 | ////////////////////////////////////////////////////////////////////////////////
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75 |
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76 | // constructor / destructor
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77 | ////////////////////////////////////////////////////////////////////////////////
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78 |
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79 | PerformanceCollector::PerformanceCollector() : mMagic(0) {}
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80 |
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81 | PerformanceCollector::~PerformanceCollector() {}
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82 |
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83 | HRESULT PerformanceCollector::FinalConstruct()
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84 | {
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85 | LogFlowThisFunc(("\n"));
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86 |
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87 | return S_OK;
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88 | }
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89 |
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90 | void PerformanceCollector::FinalRelease()
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91 | {
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92 | LogFlowThisFunc(("\n"));
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93 | }
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94 |
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95 | // public initializer/uninitializer for internal purposes only
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96 | ////////////////////////////////////////////////////////////////////////////////
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97 |
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98 | /**
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99 | * Initializes the PerformanceCollector object.
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100 | */
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101 | HRESULT PerformanceCollector::init()
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102 | {
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103 | /* Enclose the state transition NotReady->InInit->Ready */
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104 | AutoInitSpan autoInitSpan(this);
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105 | AssertReturn(autoInitSpan.isOk(), E_FAIL);
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106 |
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107 | LogFlowThisFuncEnter();
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108 |
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109 | HRESULT rc = S_OK;
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110 |
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111 | m.hal = pm::createHAL();
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112 |
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113 | /* Let the sampler know it gets a valid collector. */
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114 | mMagic = MAGIC;
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115 |
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116 | /* Start resource usage sampler */
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117 | int vrc = RTTimerLRCreate (&m.sampler, VBOX_USAGE_SAMPLER_MIN_INTERVAL,
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118 | &PerformanceCollector::staticSamplerCallback, this);
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119 | AssertMsgRC (vrc, ("Failed to create resource usage "
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120 | "sampling timer(%Rra)\n", vrc));
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121 | if (RT_FAILURE(vrc))
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122 | rc = E_FAIL;
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123 |
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124 | if (SUCCEEDED(rc))
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125 | autoInitSpan.setSucceeded();
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126 |
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127 | LogFlowThisFuncLeave();
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128 |
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129 | return rc;
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130 | }
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131 |
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132 | /**
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133 | * Uninitializes the PerformanceCollector object.
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134 | *
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135 | * Called either from FinalRelease() or by the parent when it gets destroyed.
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136 | */
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137 | void PerformanceCollector::uninit()
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138 | {
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139 | LogFlowThisFuncEnter();
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140 |
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141 | /* Enclose the state transition Ready->InUninit->NotReady */
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142 | AutoUninitSpan autoUninitSpan(this);
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143 | if (autoUninitSpan.uninitDone())
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144 | {
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145 | LogFlowThisFunc(("Already uninitialized.\n"));
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146 | LogFlowThisFuncLeave();
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147 | return;
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148 | }
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149 |
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150 | mMagic = 0;
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151 |
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152 | /* Destroy resource usage sampler */
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153 | int vrc = RTTimerLRDestroy (m.sampler);
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154 | AssertMsgRC (vrc, ("Failed to destroy resource usage "
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155 | "sampling timer (%Rra)\n", vrc));
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156 | m.sampler = NULL;
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157 |
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158 | //delete m.factory;
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159 | //m.factory = NULL;
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160 |
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161 | delete m.hal;
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162 | m.hal = NULL;
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163 |
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164 | LogFlowThisFuncLeave();
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165 | }
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166 |
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167 | // IPerformanceCollector properties
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168 | ////////////////////////////////////////////////////////////////////////////////
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169 |
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170 | STDMETHODIMP
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171 | PerformanceCollector::COMGETTER(MetricNames) (ComSafeArrayOut(BSTR, theMetricNames))
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172 | {
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173 | if (ComSafeArrayOutIsNull(theMetricNames))
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174 | return E_POINTER;
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175 |
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176 | AutoCaller autoCaller(this);
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177 | if (FAILED(autoCaller.rc())) return autoCaller.rc();
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178 |
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179 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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180 |
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181 | com::SafeArray<BSTR> metricNames(RT_ELEMENTS(gMetricNames));
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182 | for (size_t i = 0; i < RT_ELEMENTS(gMetricNames); i++)
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183 | {
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184 | Bstr tmp(gMetricNames[i]); /* gcc-3.3 cruft */
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185 | tmp.cloneTo(&metricNames[i]);
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186 | }
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187 | //gMetricNames.detachTo(ComSafeArrayOutArg(theMetricNames));
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188 | metricNames.detachTo(ComSafeArrayOutArg(theMetricNames));
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189 |
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190 | return S_OK;
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191 | }
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192 |
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193 | // IPerformanceCollector methods
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194 | ////////////////////////////////////////////////////////////////////////////////
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195 |
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196 | HRESULT PerformanceCollector::toIPerformanceMetric(pm::Metric *src, IPerformanceMetric **dst)
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197 | {
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198 | ComObjPtr<PerformanceMetric> metric;
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199 | HRESULT rc = metric.createObject();
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200 | if (SUCCEEDED(rc))
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201 | rc = metric->init (src);
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202 | AssertComRCReturnRC(rc);
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203 | metric.queryInterfaceTo(dst);
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204 | return rc;
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205 | }
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206 |
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207 | HRESULT PerformanceCollector::toIPerformanceMetric(pm::BaseMetric *src, IPerformanceMetric **dst)
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208 | {
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209 | ComObjPtr<PerformanceMetric> metric;
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210 | HRESULT rc = metric.createObject();
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211 | if (SUCCEEDED(rc))
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212 | rc = metric->init (src);
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213 | AssertComRCReturnRC(rc);
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214 | metric.queryInterfaceTo(dst);
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215 | return rc;
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216 | }
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217 |
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218 | STDMETHODIMP
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219 | PerformanceCollector::GetMetrics (ComSafeArrayIn (IN_BSTR, metricNames),
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220 | ComSafeArrayIn (IUnknown *, objects),
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221 | ComSafeArrayOut(IPerformanceMetric *, outMetrics))
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222 | {
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223 | LogFlowThisFuncEnter();
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224 | //LogFlowThisFunc(("mState=%d, mType=%d\n", mState, mType));
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225 |
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226 | HRESULT rc = S_OK;
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227 |
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228 | AutoCaller autoCaller(this);
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229 | if (FAILED(autoCaller.rc())) return autoCaller.rc();
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230 |
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231 | pm::Filter filter (ComSafeArrayInArg (metricNames),
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232 | ComSafeArrayInArg (objects));
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233 |
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234 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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235 |
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236 | MetricList filteredMetrics;
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237 | MetricList::iterator it;
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238 | for (it = m.metrics.begin(); it != m.metrics.end(); ++it)
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239 | if (filter.match ((*it)->getObject(), (*it)->getName()))
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240 | filteredMetrics.push_back (*it);
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241 |
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242 | com::SafeIfaceArray<IPerformanceMetric> retMetrics (filteredMetrics.size());
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243 | int i = 0;
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244 | for (it = filteredMetrics.begin(); it != filteredMetrics.end(); ++it)
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245 | {
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246 | ComObjPtr<PerformanceMetric> metric;
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247 | rc = metric.createObject();
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248 | if (SUCCEEDED(rc))
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249 | rc = metric->init (*it);
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250 | AssertComRCReturnRC(rc);
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251 | LogFlow (("PerformanceCollector::GetMetrics() store a metric at "
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252 | "retMetrics[%d]...\n", i));
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253 | metric.queryInterfaceTo(&retMetrics [i++]);
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254 | }
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255 | retMetrics.detachTo(ComSafeArrayOutArg(outMetrics));
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256 | LogFlowThisFuncLeave();
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257 | return rc;
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258 | }
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259 |
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260 | STDMETHODIMP
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261 | PerformanceCollector::SetupMetrics (ComSafeArrayIn (IN_BSTR, metricNames),
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262 | ComSafeArrayIn (IUnknown *, objects),
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263 | ULONG aPeriod, ULONG aCount,
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264 | ComSafeArrayOut(IPerformanceMetric *,
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265 | outMetrics))
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266 | {
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267 | AutoCaller autoCaller(this);
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268 | if (FAILED(autoCaller.rc())) return autoCaller.rc();
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269 |
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270 | pm::Filter filter (ComSafeArrayInArg (metricNames),
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271 | ComSafeArrayInArg (objects));
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272 |
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273 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
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274 |
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275 | HRESULT rc = S_OK;
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276 | BaseMetricList filteredMetrics;
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277 | BaseMetricList::iterator it;
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278 | for (it = m.baseMetrics.begin(); it != m.baseMetrics.end(); ++it)
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279 | if (filter.match((*it)->getObject(), (*it)->getName()))
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280 | {
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281 | LogFlow (("PerformanceCollector::SetupMetrics() setting period to %u,"
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282 | " count to %u for %s\n", aPeriod, aCount, (*it)->getName()));
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283 | (*it)->init(aPeriod, aCount);
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284 | if (aPeriod == 0 || aCount == 0)
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285 | {
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286 | LogFlow (("PerformanceCollector::SetupMetrics() disabling %s\n",
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287 | (*it)->getName()));
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288 | (*it)->disable();
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289 | }
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290 | else
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291 | {
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292 | LogFlow (("PerformanceCollector::SetupMetrics() enabling %s\n",
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293 | (*it)->getName()));
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294 | (*it)->enable();
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295 | }
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296 | filteredMetrics.push_back(*it);
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297 | }
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298 |
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299 | com::SafeIfaceArray<IPerformanceMetric> retMetrics (filteredMetrics.size());
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300 | int i = 0;
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301 | for (it = filteredMetrics.begin();
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302 | it != filteredMetrics.end() && SUCCEEDED(rc); ++it)
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303 | rc = toIPerformanceMetric(*it, &retMetrics [i++]);
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304 | retMetrics.detachTo(ComSafeArrayOutArg(outMetrics));
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305 |
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306 | LogFlowThisFuncLeave();
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307 | return rc;
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308 | }
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309 |
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310 | STDMETHODIMP
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311 | PerformanceCollector::EnableMetrics (ComSafeArrayIn (IN_BSTR, metricNames),
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312 | ComSafeArrayIn (IUnknown *, objects),
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313 | ComSafeArrayOut(IPerformanceMetric *,
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314 | outMetrics))
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315 | {
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316 | AutoCaller autoCaller(this);
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317 | if (FAILED(autoCaller.rc())) return autoCaller.rc();
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318 |
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319 | pm::Filter filter (ComSafeArrayInArg (metricNames),
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320 | ComSafeArrayInArg (objects));
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321 |
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322 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); /* Write lock is not needed atm since we are */
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323 | /* fiddling with enable bit only, but we */
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324 | /* care for those who come next :-). */
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325 |
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326 | HRESULT rc = S_OK;
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327 | BaseMetricList filteredMetrics;
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328 | BaseMetricList::iterator it;
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329 | for (it = m.baseMetrics.begin(); it != m.baseMetrics.end(); ++it)
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330 | if (filter.match((*it)->getObject(), (*it)->getName()))
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331 | {
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332 | (*it)->enable();
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333 | filteredMetrics.push_back(*it);
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334 | }
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335 |
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336 | com::SafeIfaceArray<IPerformanceMetric> retMetrics (filteredMetrics.size());
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337 | int i = 0;
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338 | for (it = filteredMetrics.begin();
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339 | it != filteredMetrics.end() && SUCCEEDED(rc); ++it)
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340 | rc = toIPerformanceMetric(*it, &retMetrics [i++]);
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341 | retMetrics.detachTo(ComSafeArrayOutArg(outMetrics));
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342 |
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343 | LogFlowThisFuncLeave();
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344 | return rc;
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345 | }
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346 |
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347 | STDMETHODIMP
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348 | PerformanceCollector::DisableMetrics (ComSafeArrayIn (IN_BSTR, metricNames),
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349 | ComSafeArrayIn (IUnknown *, objects),
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350 | ComSafeArrayOut(IPerformanceMetric *,
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351 | outMetrics))
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352 | {
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353 | AutoCaller autoCaller(this);
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354 | if (FAILED(autoCaller.rc())) return autoCaller.rc();
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355 |
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356 | pm::Filter filter (ComSafeArrayInArg (metricNames),
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357 | ComSafeArrayInArg (objects));
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358 |
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359 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); /* Write lock is not needed atm since we are */
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360 | /* fiddling with enable bit only, but we */
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361 | /* care for those who come next :-). */
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362 |
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363 | HRESULT rc = S_OK;
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364 | BaseMetricList filteredMetrics;
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365 | BaseMetricList::iterator it;
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366 | for (it = m.baseMetrics.begin(); it != m.baseMetrics.end(); ++it)
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367 | if (filter.match((*it)->getObject(), (*it)->getName()))
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368 | {
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369 | (*it)->disable();
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370 | filteredMetrics.push_back(*it);
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371 | }
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372 |
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373 | com::SafeIfaceArray<IPerformanceMetric> retMetrics (filteredMetrics.size());
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374 | int i = 0;
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375 | for (it = filteredMetrics.begin();
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376 | it != filteredMetrics.end() && SUCCEEDED(rc); ++it)
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377 | rc = toIPerformanceMetric(*it, &retMetrics [i++]);
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378 | retMetrics.detachTo(ComSafeArrayOutArg(outMetrics));
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379 |
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380 | LogFlowThisFuncLeave();
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381 | return rc;
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382 | }
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383 |
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384 | STDMETHODIMP
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385 | PerformanceCollector::QueryMetricsData (ComSafeArrayIn (IN_BSTR, metricNames),
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386 | ComSafeArrayIn (IUnknown *, objects),
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387 | ComSafeArrayOut(BSTR, outMetricNames),
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388 | ComSafeArrayOut(IUnknown *, outObjects),
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389 | ComSafeArrayOut(BSTR, outUnits),
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390 | ComSafeArrayOut(ULONG, outScales),
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391 | ComSafeArrayOut(ULONG, outSequenceNumbers),
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392 | ComSafeArrayOut(ULONG, outDataIndices),
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393 | ComSafeArrayOut(ULONG, outDataLengths),
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394 | ComSafeArrayOut(LONG, outData))
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395 | {
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396 | AutoCaller autoCaller(this);
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397 | if (FAILED(autoCaller.rc())) return autoCaller.rc();
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398 |
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399 | pm::Filter filter (ComSafeArrayInArg (metricNames),
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400 | ComSafeArrayInArg (objects));
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401 |
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402 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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403 |
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404 | /* Let's compute the size of the resulting flat array */
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405 | size_t flatSize = 0;
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406 | MetricList filteredMetrics;
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407 | MetricList::iterator it;
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408 | for (it = m.metrics.begin(); it != m.metrics.end(); ++it)
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409 | if (filter.match ((*it)->getObject(), (*it)->getName()))
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410 | {
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411 | filteredMetrics.push_back (*it);
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412 | flatSize += (*it)->getLength();
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413 | }
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414 |
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415 | int i = 0;
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416 | size_t flatIndex = 0;
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417 | size_t numberOfMetrics = filteredMetrics.size();
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418 | com::SafeArray<BSTR> retNames (numberOfMetrics);
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419 | com::SafeIfaceArray<IUnknown> retObjects (numberOfMetrics);
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420 | com::SafeArray<BSTR> retUnits (numberOfMetrics);
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421 | com::SafeArray<ULONG> retScales (numberOfMetrics);
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422 | com::SafeArray<ULONG> retSequenceNumbers (numberOfMetrics);
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423 | com::SafeArray<ULONG> retIndices (numberOfMetrics);
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424 | com::SafeArray<ULONG> retLengths (numberOfMetrics);
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425 | com::SafeArray<LONG> retData (flatSize);
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426 |
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427 | for (it = filteredMetrics.begin(); it != filteredMetrics.end(); ++it, ++i)
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428 | {
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429 | ULONG *values, length, sequenceNumber;
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430 | /* @todo We may want to revise the query method to get rid of excessive alloc/memcpy calls. */
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431 | (*it)->query(&values, &length, &sequenceNumber);
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432 | LogFlow (("PerformanceCollector::QueryMetricsData() querying metric %s "
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433 | "returned %d values.\n", (*it)->getName(), length));
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434 | memcpy(retData.raw() + flatIndex, values, length * sizeof(*values));
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435 | Bstr tmp((*it)->getName());
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436 | tmp.detachTo(&retNames[i]);
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437 | (*it)->getObject().queryInterfaceTo(&retObjects[i]);
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438 | tmp = (*it)->getUnit();
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439 | tmp.detachTo(&retUnits[i]);
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440 | retScales[i] = (*it)->getScale();
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441 | retSequenceNumbers[i] = sequenceNumber;
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442 | retLengths[i] = length;
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443 | retIndices[i] = (ULONG)flatIndex;
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444 | flatIndex += length;
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445 | }
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446 |
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447 | retNames.detachTo(ComSafeArrayOutArg(outMetricNames));
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448 | retObjects.detachTo(ComSafeArrayOutArg(outObjects));
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449 | retUnits.detachTo(ComSafeArrayOutArg(outUnits));
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450 | retScales.detachTo(ComSafeArrayOutArg(outScales));
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451 | retSequenceNumbers.detachTo(ComSafeArrayOutArg(outSequenceNumbers));
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452 | retIndices.detachTo(ComSafeArrayOutArg(outDataIndices));
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453 | retLengths.detachTo(ComSafeArrayOutArg(outDataLengths));
|
---|
454 | retData.detachTo(ComSafeArrayOutArg(outData));
|
---|
455 | return S_OK;
|
---|
456 | }
|
---|
457 |
|
---|
458 | // public methods for internal purposes
|
---|
459 | ///////////////////////////////////////////////////////////////////////////////
|
---|
460 |
|
---|
461 | void PerformanceCollector::registerBaseMetric (pm::BaseMetric *baseMetric)
|
---|
462 | {
|
---|
463 | //LogFlowThisFuncEnter();
|
---|
464 | AutoCaller autoCaller(this);
|
---|
465 | if (!SUCCEEDED(autoCaller.rc())) return;
|
---|
466 |
|
---|
467 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
|
---|
468 | LogAleksey(("{%p} " LOG_FN_FMT ": obj=%p name=%s\n", this, __PRETTY_FUNCTION__, (void *)baseMetric->getObject(), baseMetric->getName()));
|
---|
469 | m.baseMetrics.push_back (baseMetric);
|
---|
470 | //LogFlowThisFuncLeave();
|
---|
471 | }
|
---|
472 |
|
---|
473 | void PerformanceCollector::registerMetric (pm::Metric *metric)
|
---|
474 | {
|
---|
475 | //LogFlowThisFuncEnter();
|
---|
476 | AutoCaller autoCaller(this);
|
---|
477 | if (!SUCCEEDED(autoCaller.rc())) return;
|
---|
478 |
|
---|
479 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
|
---|
480 | LogAleksey(("{%p} " LOG_FN_FMT ": obj=%p name=%s\n", this, __PRETTY_FUNCTION__, (void *)metric->getObject(), metric->getName()));
|
---|
481 | m.metrics.push_back (metric);
|
---|
482 | //LogFlowThisFuncLeave();
|
---|
483 | }
|
---|
484 |
|
---|
485 | void PerformanceCollector::unregisterBaseMetricsFor (const ComPtr<IUnknown> &aObject)
|
---|
486 | {
|
---|
487 | //LogFlowThisFuncEnter();
|
---|
488 | AutoCaller autoCaller(this);
|
---|
489 | if (!SUCCEEDED(autoCaller.rc())) return;
|
---|
490 |
|
---|
491 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
|
---|
492 | LogAleksey(("{%p} " LOG_FN_FMT ": before remove_if: m.baseMetrics.size()=%d\n", this, __PRETTY_FUNCTION__, m.baseMetrics.size()));
|
---|
493 | BaseMetricList::iterator it;
|
---|
494 | for (it = m.baseMetrics.begin(); it != m.baseMetrics.end();)
|
---|
495 | if ((*it)->associatedWith(aObject))
|
---|
496 | {
|
---|
497 | delete *it;
|
---|
498 | it = m.baseMetrics.erase(it);
|
---|
499 | }
|
---|
500 | else
|
---|
501 | ++it;
|
---|
502 | LogAleksey(("{%p} " LOG_FN_FMT ": after remove_if: m.baseMetrics.size()=%d\n", this, __PRETTY_FUNCTION__, m.baseMetrics.size()));
|
---|
503 | //LogFlowThisFuncLeave();
|
---|
504 | }
|
---|
505 |
|
---|
506 | void PerformanceCollector::unregisterMetricsFor (const ComPtr<IUnknown> &aObject)
|
---|
507 | {
|
---|
508 | //LogFlowThisFuncEnter();
|
---|
509 | AutoCaller autoCaller(this);
|
---|
510 | if (!SUCCEEDED(autoCaller.rc())) return;
|
---|
511 |
|
---|
512 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
|
---|
513 | LogAleksey(("{%p} " LOG_FN_FMT ": obj=%p\n", this, __PRETTY_FUNCTION__, (void *)aObject));
|
---|
514 | MetricList::iterator it;
|
---|
515 | for (it = m.metrics.begin(); it != m.metrics.end();)
|
---|
516 | if ((*it)->associatedWith(aObject))
|
---|
517 | {
|
---|
518 | delete *it;
|
---|
519 | it = m.metrics.erase(it);
|
---|
520 | }
|
---|
521 | else
|
---|
522 | ++it;
|
---|
523 | //LogFlowThisFuncLeave();
|
---|
524 | }
|
---|
525 |
|
---|
526 | void PerformanceCollector::suspendSampling()
|
---|
527 | {
|
---|
528 | AutoCaller autoCaller(this);
|
---|
529 | if (!SUCCEEDED(autoCaller.rc())) return;
|
---|
530 |
|
---|
531 | int rc = RTTimerLRStop(m.sampler);
|
---|
532 | AssertRC(rc);
|
---|
533 | }
|
---|
534 |
|
---|
535 | void PerformanceCollector::resumeSampling()
|
---|
536 | {
|
---|
537 | AutoCaller autoCaller(this);
|
---|
538 | if (!SUCCEEDED(autoCaller.rc())) return;
|
---|
539 |
|
---|
540 | int rc = RTTimerLRStart(m.sampler, 0);
|
---|
541 | AssertRC(rc);
|
---|
542 | }
|
---|
543 |
|
---|
544 |
|
---|
545 | // private methods
|
---|
546 | ///////////////////////////////////////////////////////////////////////////////
|
---|
547 |
|
---|
548 | /* static */
|
---|
549 | void PerformanceCollector::staticSamplerCallback (RTTIMERLR hTimerLR, void *pvUser,
|
---|
550 | uint64_t /* iTick */)
|
---|
551 | {
|
---|
552 | AssertReturnVoid (pvUser != NULL);
|
---|
553 | PerformanceCollector *collector = static_cast <PerformanceCollector *> (pvUser);
|
---|
554 | Assert (collector->mMagic == MAGIC);
|
---|
555 | if (collector->mMagic == MAGIC)
|
---|
556 | {
|
---|
557 | collector->samplerCallback();
|
---|
558 | }
|
---|
559 | NOREF (hTimerLR);
|
---|
560 | }
|
---|
561 |
|
---|
562 | void PerformanceCollector::samplerCallback()
|
---|
563 | {
|
---|
564 | Log4(("{%p} " LOG_FN_FMT ": ENTER\n", this, __PRETTY_FUNCTION__));
|
---|
565 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
|
---|
566 |
|
---|
567 | pm::CollectorHints hints;
|
---|
568 | uint64_t timestamp = RTTimeMilliTS();
|
---|
569 | BaseMetricList toBeCollected;
|
---|
570 | BaseMetricList::iterator it;
|
---|
571 | /* Compose the list of metrics being collected at this moment */
|
---|
572 | for (it = m.baseMetrics.begin(); it != m.baseMetrics.end(); it++)
|
---|
573 | if ((*it)->collectorBeat(timestamp))
|
---|
574 | {
|
---|
575 | (*it)->preCollect(hints);
|
---|
576 | toBeCollected.push_back(*it);
|
---|
577 | }
|
---|
578 |
|
---|
579 | if (toBeCollected.size() == 0)
|
---|
580 | return;
|
---|
581 |
|
---|
582 | /* Let know the platform specific code what is being collected */
|
---|
583 | m.hal->preCollect(hints);
|
---|
584 |
|
---|
585 | /* Finally, collect the data */
|
---|
586 | std::for_each (toBeCollected.begin(), toBeCollected.end(),
|
---|
587 | std::mem_fun (&pm::BaseMetric::collect));
|
---|
588 | Log4(("{%p} " LOG_FN_FMT ": LEAVE\n", this, __PRETTY_FUNCTION__));
|
---|
589 | }
|
---|
590 |
|
---|
591 | ////////////////////////////////////////////////////////////////////////////////
|
---|
592 | // PerformanceMetric class
|
---|
593 | ////////////////////////////////////////////////////////////////////////////////
|
---|
594 |
|
---|
595 | // constructor / destructor
|
---|
596 | ////////////////////////////////////////////////////////////////////////////////
|
---|
597 |
|
---|
598 | PerformanceMetric::PerformanceMetric()
|
---|
599 | {
|
---|
600 | }
|
---|
601 |
|
---|
602 | PerformanceMetric::~PerformanceMetric()
|
---|
603 | {
|
---|
604 | }
|
---|
605 |
|
---|
606 | HRESULT PerformanceMetric::FinalConstruct()
|
---|
607 | {
|
---|
608 | LogFlowThisFunc(("\n"));
|
---|
609 |
|
---|
610 | return S_OK;
|
---|
611 | }
|
---|
612 |
|
---|
613 | void PerformanceMetric::FinalRelease()
|
---|
614 | {
|
---|
615 | LogFlowThisFunc(("\n"));
|
---|
616 |
|
---|
617 | uninit ();
|
---|
618 | }
|
---|
619 |
|
---|
620 | // public initializer/uninitializer for internal purposes only
|
---|
621 | ////////////////////////////////////////////////////////////////////////////////
|
---|
622 |
|
---|
623 | HRESULT PerformanceMetric::init (pm::Metric *aMetric)
|
---|
624 | {
|
---|
625 | m.name = aMetric->getName();
|
---|
626 | m.object = aMetric->getObject();
|
---|
627 | m.description = aMetric->getDescription();
|
---|
628 | m.period = aMetric->getPeriod();
|
---|
629 | m.count = aMetric->getLength();
|
---|
630 | m.unit = aMetric->getUnit();
|
---|
631 | m.min = aMetric->getMinValue();
|
---|
632 | m.max = aMetric->getMaxValue();
|
---|
633 | return S_OK;
|
---|
634 | }
|
---|
635 |
|
---|
636 | HRESULT PerformanceMetric::init (pm::BaseMetric *aMetric)
|
---|
637 | {
|
---|
638 | m.name = aMetric->getName();
|
---|
639 | m.object = aMetric->getObject();
|
---|
640 | m.description = "";
|
---|
641 | m.period = aMetric->getPeriod();
|
---|
642 | m.count = aMetric->getLength();
|
---|
643 | m.unit = aMetric->getUnit();
|
---|
644 | m.min = aMetric->getMinValue();
|
---|
645 | m.max = aMetric->getMaxValue();
|
---|
646 | return S_OK;
|
---|
647 | }
|
---|
648 |
|
---|
649 | void PerformanceMetric::uninit()
|
---|
650 | {
|
---|
651 | }
|
---|
652 |
|
---|
653 | STDMETHODIMP PerformanceMetric::COMGETTER(MetricName) (BSTR *aMetricName)
|
---|
654 | {
|
---|
655 | /// @todo (r=dmik) why do all these getters not do AutoCaller and
|
---|
656 | /// AutoReadLock? Is the underlying metric a constant object?
|
---|
657 |
|
---|
658 | m.name.cloneTo(aMetricName);
|
---|
659 | return S_OK;
|
---|
660 | }
|
---|
661 |
|
---|
662 | STDMETHODIMP PerformanceMetric::COMGETTER(Object) (IUnknown **anObject)
|
---|
663 | {
|
---|
664 | m.object.queryInterfaceTo(anObject);
|
---|
665 | return S_OK;
|
---|
666 | }
|
---|
667 |
|
---|
668 | STDMETHODIMP PerformanceMetric::COMGETTER(Description) (BSTR *aDescription)
|
---|
669 | {
|
---|
670 | m.description.cloneTo(aDescription);
|
---|
671 | return S_OK;
|
---|
672 | }
|
---|
673 |
|
---|
674 | STDMETHODIMP PerformanceMetric::COMGETTER(Period) (ULONG *aPeriod)
|
---|
675 | {
|
---|
676 | *aPeriod = m.period;
|
---|
677 | return S_OK;
|
---|
678 | }
|
---|
679 |
|
---|
680 | STDMETHODIMP PerformanceMetric::COMGETTER(Count) (ULONG *aCount)
|
---|
681 | {
|
---|
682 | *aCount = m.count;
|
---|
683 | return S_OK;
|
---|
684 | }
|
---|
685 |
|
---|
686 | STDMETHODIMP PerformanceMetric::COMGETTER(Unit) (BSTR *aUnit)
|
---|
687 | {
|
---|
688 | m.unit.cloneTo(aUnit);
|
---|
689 | return S_OK;
|
---|
690 | }
|
---|
691 |
|
---|
692 | STDMETHODIMP PerformanceMetric::COMGETTER(MinimumValue) (LONG *aMinValue)
|
---|
693 | {
|
---|
694 | *aMinValue = m.min;
|
---|
695 | return S_OK;
|
---|
696 | }
|
---|
697 |
|
---|
698 | STDMETHODIMP PerformanceMetric::COMGETTER(MaximumValue) (LONG *aMaxValue)
|
---|
699 | {
|
---|
700 | *aMaxValue = m.max;
|
---|
701 | return S_OK;
|
---|
702 | }
|
---|
703 | /* vi: set tabstop=4 shiftwidth=4 expandtab: */
|
---|