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_MEM_SAMPLER_H |
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20 #define PROFILER_MEM_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 MEM trace |
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32 #define PROFILER_MAX_THREAD_AMOUNT 512 |
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33 |
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34 /* |
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35 * |
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36 * MEM sampler definition |
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37 * |
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38 */ |
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39 |
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40 class MemSamplerImpl |
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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 MemSamplerImpl(); |
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52 ~MemSamplerImpl(); |
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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 TInt ProcessThreads(); |
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60 TInt GatherChunks(); |
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61 TInt GatherThreads(); |
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62 |
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63 TInt EncodeChunkData(DChunk& chunk); |
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64 TInt EncodeChunkName(DChunk& chunk); |
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65 TInt EncodeChunkData(DThread& thread); |
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66 TInt EncodeChunkName(DThread& thread); |
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67 |
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68 TInt EncodeTotalMemoryName(); |
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69 TInt EncodeTotalMemory(); |
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70 |
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71 TInt EncodeNameCode(); |
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72 TInt EncodeDataCode(); |
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73 |
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74 DChunk* heapChunksToSample[PROFILER_MAX_THREAD_AMOUNT]; |
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75 DChunk* heapChunkNamesToReport[PROFILER_MAX_THREAD_AMOUNT]; |
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76 TInt iCount; |
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77 TInt iChunkCount; |
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78 TInt iNewChunkCount; |
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79 TBuf8<0x50> name; |
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80 DThread* threadsToSample[PROFILER_MAX_THREAD_AMOUNT]; |
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81 DThread* threadNamesToReport[PROFILER_MAX_THREAD_AMOUNT]; |
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82 TInt iThreadCount; |
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83 TInt iNewThreadCount; |
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84 |
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85 TInt iChunksProcessing; |
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86 TInt iThreadsProcessing; |
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87 TInt iMemSamplingPeriod; |
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88 TInt iMemSamplingPeriodDiv2; |
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89 TBool iSampleThreads; |
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90 TBool iTimeToSample; |
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91 |
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92 TBool iTotalMemoryOk; |
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93 TBool iTotalMemoryNameOk; |
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94 |
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95 TUint8 sample[257]; |
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96 TPtr8 sampleDescriptor; |
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97 }; |
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98 |
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99 template <int BufferSize> |
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100 class DProfilerMemSampler : public DProfilerGenericSampler<BufferSize> |
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101 { |
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102 public: |
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103 DProfilerMemSampler(struct TProfilerGppSamplerData*, TInt id); |
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104 ~DProfilerMemSampler(); |
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105 |
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106 void Sample(); |
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107 TInt Reset(DProfilerSampleStream* aStream, TUint32 aSyncOffset); |
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108 TInt PostSample(); |
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109 TBool PostSampleNeeded(); |
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110 |
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111 private: |
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112 MemSamplerImpl memSamplerImpl; |
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113 struct TProfilerGppSamplerData* gppSamplerData; |
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114 TBool sampleNeeded; |
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115 }; |
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116 |
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117 /* |
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118 * |
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119 * MEM sampler implementation |
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120 * |
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121 */ |
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122 |
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123 template <int BufferSize> |
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124 DProfilerMemSampler<BufferSize>::DProfilerMemSampler(struct TProfilerGppSamplerData* gppSamplerDataIn, TInt id) : |
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125 DProfilerGenericSampler<BufferSize>(PROFILER_MEM_SAMPLER_ID) |
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126 { |
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127 LOGSTRING2("CProfilerMemSampler<%d>::CProfilerMemSampler",BufferSize); |
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128 this->gppSamplerData = gppSamplerDataIn; |
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129 this->iSamplingPeriod = 3000; // set default setting |
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130 } |
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131 |
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132 template <int BufferSize> |
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133 TInt DProfilerMemSampler<BufferSize>::Reset(DProfilerSampleStream* aStream, TUint32 aSyncOffset) |
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134 { |
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135 LOGSTRING2("CProfilerMemSampler<%d>::Reset - calling superclass reset",BufferSize); |
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136 DProfilerGenericSampler<BufferSize>::Reset(aStream); |
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137 LOGSTRING2("CProfilerMemSampler<%d>::Reset - called superclass reset",BufferSize); |
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138 memSamplerImpl.Reset(); |
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139 |
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140 this->memSamplerImpl.iMemSamplingPeriod = this->iSamplingPeriod; |
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141 this->memSamplerImpl.iMemSamplingPeriodDiv2 = (TInt)(this->memSamplerImpl.iMemSamplingPeriod / 2); |
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142 |
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143 LOGSTRING3("CProfilerMemSampler<%d>::Reset - set mem sampling period to", |
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144 BufferSize,this->memSamplerImpl.iMemSamplingPeriod); |
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145 |
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146 TInt length = memSamplerImpl.CreateFirstSample(); |
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147 this->iSampleBuffer->AddSample(memSamplerImpl.sample,length); |
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148 |
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149 this->sampleNeeded = false; |
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150 |
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151 return KErrNone; |
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152 } |
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153 |
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154 template <int BufferSize> |
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155 TInt DProfilerMemSampler<BufferSize>::PostSample() |
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156 { |
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157 this->sampleNeeded = false; |
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158 |
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159 LOGSTRING3("CProfilerMemSampler<%d>::PostSample - state %d",BufferSize,this->sampleBuffer->GetBufferStatus()); |
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160 |
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161 TInt interruptLevel = NKern::DisableInterrupts(0); |
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162 |
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163 // first collect chunk data |
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164 TInt length = this->memSamplerImpl.SampleImpl(); |
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165 if(length != 0) |
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166 { |
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167 LOGSTRING("MEM sampler PostSample - starting to sample"); |
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168 |
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169 // then, encode the sample to the buffer |
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170 while(length > 0) |
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171 { |
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172 this->iSampleBuffer->AddSample(memSamplerImpl.sample,length); |
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173 length = this->memSamplerImpl.SampleImpl(); |
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174 // indicate that the whole MEM sample ends by having a 0x00 in the end |
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175 if(length == 0) |
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176 { |
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177 TUint8 number = 0; |
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178 LOGSTRING("MEM sampler PostSample - all samples generated!"); |
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179 |
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180 this->iSampleBuffer->AddSample(&number,1); |
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181 LOGSTRING("MEM sampler PostSample - end mark added"); |
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182 } |
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183 } |
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184 } |
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185 |
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186 LOGSTRING("MEM sampler PostSample - finished sampling"); |
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187 |
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188 NKern::RestoreInterrupts(interruptLevel); |
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189 |
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190 // finally perform superclass postsample |
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191 TInt i = this->DProfilerGenericSampler<BufferSize>::PostSample(); |
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192 return i; |
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193 |
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194 } |
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195 |
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196 template <int BufferSize> |
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197 TBool DProfilerMemSampler<BufferSize>::PostSampleNeeded() |
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198 { |
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199 LOGSTRING3("CProfilerMemSampler<%d>::PostSampleNeeded - state %d",BufferSize,this->sampleBuffer->GetBufferStatus()); |
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200 |
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201 TUint32 status = this->iSampleBuffer->iBufferStatus; |
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202 |
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203 if(status == DProfilerSampleBuffer::BufferCopyAsap || status == DProfilerSampleBuffer::BufferFull || this->sampleNeeded == true) |
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204 { |
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205 return true; |
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206 } |
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207 |
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208 return false; |
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209 } |
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210 |
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211 template <int BufferSize> |
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212 void DProfilerMemSampler<BufferSize>::Sample() |
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213 { |
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214 |
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215 LOGSTRING2("CProfilerMemSampler<%d>::Sample",BufferSize); |
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216 |
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217 if(memSamplerImpl.SampleNeeded()) |
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218 { |
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219 this->sampleNeeded = true; |
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220 |
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221 LOGSTRING2("CProfilerMemSampler<%d>::Sample - sample needed",BufferSize); |
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222 |
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223 // start the MEM sample with the sample time |
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224 TUint8 number = 4; // mem sampler id |
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225 this->iSampleBuffer->AddSample(&number,1); |
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226 this->iSampleBuffer->AddSample((TUint8*)&(gppSamplerData->sampleNumber),4); |
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227 |
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228 // leave the rest of the processing for PostSample() |
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229 } |
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230 |
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231 LOGSTRING2("CProfilerMemSampler<%d>::Sample",BufferSize); |
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232 return; |
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233 } |
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234 |
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235 template <int BufferSize> |
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236 DProfilerMemSampler<BufferSize>::~DProfilerMemSampler() |
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237 { |
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238 LOGSTRING2("CProfilerMemSampler<%d>::~CProfilerMemSampler",BufferSize); |
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239 } |
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240 #endif |
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