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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #ifndef PROFILER_PRI_SAMPLER_H |
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20 #define PROFILER_PRI_SAMPLER_H |
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21 |
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22 #include "GeneralsConfig.h" |
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23 |
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24 #include <kern_priv.h> |
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25 |
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26 #include <piprofiler/ProfilerGenericClassesKrn.h> |
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27 #include <piprofiler/ProfilerTraces.h> |
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28 #include "GppSamplerImpl.h" |
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29 |
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30 // defines the maximum thread amount that is assumed to |
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31 // be possible with PRI trace |
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32 const TInt KProfilerMaxThreadAmount = 512; |
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33 |
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34 /* |
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35 * |
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36 * PRI sampler definition |
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37 * |
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38 */ |
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39 |
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40 class DPriSamplerImpl //: public DBase |
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41 { |
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42 public: |
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43 enum EProcessingState |
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44 { |
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45 EStartingToProcess, |
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46 EProcessingNames, |
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47 EProcessingData, |
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48 ENothingToProcess |
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49 }; |
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50 |
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51 DPriSamplerImpl(); |
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52 ~DPriSamplerImpl(); |
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53 |
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54 TInt CreateFirstSample(); |
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55 TInt SampleImpl(); |
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56 TBool SampleNeeded(); |
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57 void Reset(); |
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58 TInt ProcessChunks(); |
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59 |
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60 TInt EncodeChunkData(DThread& thread); |
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61 TInt EncodeChunkName(DThread& thread); |
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62 |
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63 TInt EncodeNameCode(); |
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64 TInt EncodeDataCode(); |
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65 |
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66 TInt iCountti; |
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67 DThread* threadsToSample[KProfilerMaxThreadAmount]; |
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68 DThread* threadNamesToReport[KProfilerMaxThreadAmount]; |
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69 |
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70 TInt iThreadCount; |
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71 TInt iNewThreadCount; |
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72 |
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73 TInt iProcessing; |
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74 TInt iPriSamplingPeriod; |
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75 |
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76 TUint8 sample[257]; |
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77 TPtr8 sampleDescriptor; |
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78 #ifdef __SMP__ |
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79 TInt iCpuNumber; |
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80 TUint32 iStartTime; |
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81 #endif |
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82 |
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83 }; |
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84 |
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85 template <int BufferSize> |
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86 class DProfilerPriSampler : public DProfilerGenericSampler<BufferSize> |
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87 { |
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88 public: |
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89 DProfilerPriSampler(struct TProfilerGppSamplerData*, TInt id); |
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90 ~DProfilerPriSampler(); |
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91 |
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92 void Sample(); |
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93 TInt Reset(DProfilerSampleStream* aStream, TUint32 aSyncOffset); |
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94 TInt PostSample(); |
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95 TBool PostSampleNeeded(); |
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96 |
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97 private: |
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98 DPriSamplerImpl priSamplerImpl; |
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99 struct TProfilerGppSamplerData* gppSamplerData; |
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100 TBool sampleNeeded; |
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101 TBool sampleInProgress; |
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102 #ifdef __SMP__ |
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103 TInt iCpuNumber; |
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104 #endif |
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105 }; |
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106 |
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107 /* |
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108 * |
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109 * PRI sampler implementation |
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110 * |
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111 */ |
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112 //#ifndef __SMP__ |
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113 template <int BufferSize> |
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114 DProfilerPriSampler<BufferSize>::DProfilerPriSampler(struct TProfilerGppSamplerData* gppSamplerDataIn, TInt id) : |
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115 DProfilerGenericSampler<BufferSize>(PROFILER_PRI_SAMPLER_ID) |
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116 { |
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117 LOGSTRING2("CProfilerPriSampler<%d>::CProfilerPriSampler",BufferSize); |
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118 this->gppSamplerData = gppSamplerDataIn; |
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119 this->sampleInProgress = false; |
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120 this->iSamplingPeriod = 3000; // set default setting |
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121 } |
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122 //#else |
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123 //template <int BufferSize> |
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124 //DProfilerPriSampler<BufferSize>::DProfilerPriSampler(struct TProfilerGppSamplerData* gppSamplerDataIn, TInt id, TInt aCpuNumber) : |
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125 // DProfilerGenericSampler<BufferSize>(PROFILER_PRI_SAMPLER_ID+(aCpuNumber*20)), iCpuNumber(aCpuNumber) |
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126 // { |
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127 // LOGSTRING2("CProfilerGppSampler<%d>::CProfilerGppSampler",BufferSize); |
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128 // } |
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129 //#endif |
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130 |
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131 template <int BufferSize> |
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132 TInt DProfilerPriSampler<BufferSize>::Reset(DProfilerSampleStream* aStream, TUint32 aSyncOffset) |
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133 { |
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134 LOGSTRING2("CProfilerPriSampler<%d>::Reset - calling superclass reset",BufferSize); |
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135 DProfilerGenericSampler<BufferSize>::Reset(aStream); |
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136 LOGSTRING2("CProfilerPriSampler<%d>::Reset - called superclass reset",BufferSize); |
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137 priSamplerImpl.Reset(); |
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138 |
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139 #ifdef __SMP__ |
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140 // this->priSamplerImpl.iCpuNumber = this->iCpuNumber; |
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141 // |
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142 // // set common start time for all CPU samplers |
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143 // this->priSamplerImpl.iStartTime = aSyncOffset; |
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144 #endif |
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145 this->priSamplerImpl.iPriSamplingPeriod = this->iSamplingPeriod; |
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146 |
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147 |
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148 LOGSTRING3("CProfilerPriSampler<%d>::Reset - set pri sampling period to", |
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149 BufferSize,this->priSamplerImpl.iPriSamplingPeriod); |
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150 |
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151 TInt length(priSamplerImpl.CreateFirstSample()); |
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152 this->iSampleBuffer->AddSample(priSamplerImpl.sample,length); |
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153 |
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154 this->sampleInProgress = false; |
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155 this->sampleNeeded = false; |
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156 |
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157 return KErrNone; |
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158 } |
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159 |
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160 template <int BufferSize> |
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161 TInt DProfilerPriSampler<BufferSize>::PostSample() |
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162 { |
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163 if(sampleNeeded) |
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164 { |
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165 this->sampleNeeded = false; |
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166 |
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167 LOGSTRING3("CProfilerPriSampler<%d>::PostSample - state %d",BufferSize,this->sampleBuffer->GetBufferStatus()); |
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168 |
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169 //TInt interruptLevel = NKern::DisableInterrupts(0); |
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170 |
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171 TInt length(this->priSamplerImpl.SampleImpl()); |
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172 if(length != 0) |
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173 { |
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174 LOGSTRING("PRI sampler PostSample - starting to sample"); |
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175 |
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176 // then, encode the sample to the buffer |
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177 while(length > 0) |
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178 { |
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179 this->iSampleBuffer->AddSample(priSamplerImpl.sample,length); |
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180 length = this->priSamplerImpl.SampleImpl(); |
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181 // indicate that the whole PRI sample ends by having a 0x00 in the end |
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182 if(length == 0) |
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183 { |
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184 TUint8 number(0); |
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185 LOGSTRING("PRI sampler PostSample - all samples generated!"); |
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186 |
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187 this->iSampleBuffer->AddSample(&number,1); |
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188 LOGSTRING("PRI sampler PostSample - end mark added"); |
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189 } |
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190 } |
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191 LOGSTRING("PRI sampler PostSample - finished sampling"); |
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192 } |
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193 this->sampleInProgress = false; |
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194 |
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195 //NKern::RestoreInterrupts(interruptLevel); |
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196 } |
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197 |
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198 // finally perform superclass postsample |
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199 TInt i(this->DProfilerGenericSampler<BufferSize>::PostSample()); |
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200 return i; |
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201 } |
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202 |
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203 template <int BufferSize> |
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204 TBool DProfilerPriSampler<BufferSize>::PostSampleNeeded() |
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205 { |
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206 LOGSTRING3("CProfilerPriSampler<%d>::PostSampleNeeded - state %d",BufferSize,this->sampleBuffer->GetBufferStatus()); |
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207 |
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208 TUint32 status = this->iSampleBuffer->iBufferStatus; |
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209 |
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210 if(status == DProfilerSampleBuffer::BufferCopyAsap || status == DProfilerSampleBuffer::BufferFull || this->sampleNeeded == true) |
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211 { |
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212 return true; |
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213 } |
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214 |
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215 return false; |
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216 } |
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217 |
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218 |
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219 template <int BufferSize> |
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220 void DProfilerPriSampler<BufferSize>::Sample() |
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221 { |
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222 LOGSTRING2("CProfilerPriSampler<%d>::Sample",BufferSize); |
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223 |
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224 if(priSamplerImpl.SampleNeeded() && this->sampleInProgress == false) |
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225 { |
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226 this->sampleInProgress = true; |
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227 this->sampleNeeded = true; |
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228 // start the PRI sample with the sample time |
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229 TUint8 number(4); |
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230 this->iSampleBuffer->AddSample(&number,1); |
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231 this->iSampleBuffer->AddSample((TUint8*)&(gppSamplerData->sampleNumber),4); |
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232 |
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233 // leave the rest of the processing for PostSample() |
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234 } |
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235 |
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236 LOGSTRING2("CProfilerPriSampler<%d>::Sample",BufferSize); |
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237 return; |
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238 } |
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239 |
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240 template <int BufferSize> |
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241 DProfilerPriSampler<BufferSize>::~DProfilerPriSampler() |
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242 { |
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243 LOGSTRING2("CProfilerPriSampler<%d>::~CProfilerPriSampler",BufferSize); |
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244 } |
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245 #endif |