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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 __SAMPLER_PLUGIN_INTERFACE__ |
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20 #define __SAMPLER_PLUGIN_INTERFACE__ |
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21 |
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22 #include <e32base.h> |
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23 #include <ecom/ecom.h> |
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24 #include <badesca.h> |
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25 #include <piprofiler/ProfilerAttributes.h> // internal settings format presentations |
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26 |
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27 |
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28 // Constant for indexing (iOrder): |
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29 const TInt KSamplerPluginNotIndexed = -1; |
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30 |
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31 /** |
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32 * Constant: KSamplerPluginInterfaceUid |
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33 * |
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34 * Description: UID of this ECOM interface. It should be unique in the system. |
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35 * It is used to identify this specific custom interface. |
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36 * Implementations of this interface will use this ID, when they |
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37 * publish the implementation. Clients use this UID to search for |
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38 * implementations for this interface (the |
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39 * EcomInterfaceDefinition.inl does this). |
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40 */ |
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41 const TUid KSamplerPluginInterfaceUid = {0x2001E5BC}; |
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42 |
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43 /** |
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44 * |
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45 * Description: UID of this ECOM interface. It should be unique in the system. |
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46 * |
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47 */ |
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48 enum TGenericSettingTypes |
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49 { |
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50 EEnablePlugin, |
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51 EOutputSettings, |
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52 ESaveDrive, |
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53 EFilePrefix, |
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54 ETracingMode |
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55 }; |
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56 |
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57 |
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58 enum TSamplerCaptionTypes |
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59 { |
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60 ECaptionLengthShort, |
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61 ECaptionLengthMedium, |
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62 ECaptionLengthLong, |
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63 ESettingsCaption |
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64 }; |
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65 |
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66 |
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67 /** |
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68 * Used by GetValue(). These are the keys for retrieving a specific |
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69 * value. This enum can be extended to provide other values as well as |
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70 * long as the original keys are not changed. |
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71 */ |
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72 enum TSamplerPluginValueKeys |
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73 { |
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74 |
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75 ESamplerPluginKeySettingsItemValueString = 1, |
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76 ESamplerPluginSettings, |
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77 ESamplerPluginEnabled, |
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78 ESamplerPluginDisabled, |
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79 ESamplerPluginType, |
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80 ESamplerPluginVersion |
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81 }; |
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82 |
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83 |
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84 /** |
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85 * Class: CSamplerInterfaceDefinition |
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86 * |
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87 * Description: Custom ECOM interface definition. This interface is used by |
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88 * clients to find specific instance and do corresponding |
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89 * calculation operation for given too numbers. Plugin |
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90 * implementations implement the Calculate function. |
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91 */ |
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92 class TBapBuf; |
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93 class CProfilerSampleStream; |
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94 |
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95 class CSamplerPluginInterface : public CBase |
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96 { |
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97 |
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98 // CSamplerPluginLoader accesses iOrder which should not be accessed outside. |
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99 friend class CSamplerPluginLoader; |
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100 |
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101 public: |
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102 // Wrapper functions to handle ECOM "connectivity". |
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103 // These are implemented in EComInterfaceDefinition.inl. |
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104 // These functions are used only by the client. |
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105 |
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106 /** |
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107 * Function: NewL |
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108 * |
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109 * Description: Wraps ECom object instantitation. Will search for |
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110 * interface implementation, which matches to given |
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111 * aOperationName. |
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112 * |
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113 * Param: aOperationName name of requested implementation. |
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114 * Implementations advertise their "name" as specified |
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115 * in their resource file field |
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116 * IMPLEMENTATION_INFO::default_data. |
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117 * For details, see EcomInterfaceDefinition.inl comments. |
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118 * In this example, the allowed values are "sum" and |
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119 * "multiply". |
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120 * |
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121 * Note: This is not a "normal" NewL method, since normally NewL |
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122 * methods are only defined for concrete classes. |
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123 * Note that also implementations of this interface provide |
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124 * NewL methods. They are the familiar NewL's, which create |
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125 * instance of classes. |
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126 */ |
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127 static CSamplerPluginInterface* NewL(const TUid aImplementationUid, TAny* aInitParams); |
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128 |
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129 /** |
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130 * Function: ~CSamplerPluginInterface |
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131 * |
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132 * Description: Wraps ECom object destruction. Notifies the ECOM |
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133 * framework that specific instance is being destroyed. |
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134 * See EcomInterfaceDefinition.inl for details. |
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135 */ |
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136 virtual ~CSamplerPluginInterface(); |
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137 protected: // New |
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138 |
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139 /** |
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140 * C++ constructor. |
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141 */ |
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142 CSamplerPluginInterface(); |
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143 |
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144 public: |
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145 // Public pure virtual functions, which are implemented by |
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146 // interface implementations (See ..\plugin) |
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147 |
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148 /** |
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149 * Method for initializing and starting of profiling in single plugin implementation |
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150 * @param aStream is a data stream to store the gathered data, provided by engine |
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151 * @return TInt if no error KErrNone, else any of system-wide errors |
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152 */ |
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153 virtual TInt ResetAndActivateL(CProfilerSampleStream& aStream) = 0; |
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154 |
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155 /** |
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156 * Method for stopping of profiling in single plugin implementation |
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157 * @return TInt if no error KErrNone, else any of system-wide errors |
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158 */ |
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159 virtual TInt StopSampling() = 0; |
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160 |
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161 /** |
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162 * Method for checking if plugin is enabled |
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163 * @return TBool if enabled return ETrue else EFalse |
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164 */ |
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165 virtual TBool Enabled() = 0; |
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166 |
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167 /** |
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168 * Method for getting an array of sampler attributes, size of an array: 1...n |
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169 * @return array of settings of one or several sampler plugins |
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170 */ |
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171 virtual void GetAttributesL(CArrayFixFlat<TSamplerAttributes>* aAttributeArray) = 0; |
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172 |
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173 /** |
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174 * Method for setting configurations of single sampler attributes |
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175 * @param aAttributes contains settings of a single sampler plugin |
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176 */ |
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177 virtual TInt SetAttributesL(TSamplerAttributes aAttributes) = 0; |
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178 |
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179 /** |
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180 * Method for parsing text formatted settings block and converting |
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181 * it to TSamplerAttributes data structure |
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182 * @param aSingleSettingArray containing setting lines of a single sampler |
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183 * @return status of conversion, if success KErrNone, else KErrGeneral |
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184 */ |
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185 virtual TInt ConvertRawSettingsToAttributes(CDesC8ArrayFlat* aSingleSettingArray) = 0; |
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186 |
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187 /** |
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188 * Method for getting UID of this plugin. |
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189 * @param aSubId the implementation id of sub sampler |
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190 * @returns uid of sampler or sub sampler, if aSubId -1 uid of sampler, else uid of sub sampler |
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191 */ |
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192 virtual TUid Id(TInt aSubId) const = 0; |
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193 |
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194 /** |
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195 * Method for getting locally defined sub ID value inside a specific plug-in. |
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196 * @param aUid of a specific sampler |
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197 * @returns local ID of sampler or sub sampler |
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198 */ |
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199 virtual TInt SubId(TUid aUid) const = 0; |
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200 |
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201 /** |
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202 * Method for getting sampler type. |
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203 * @returns PROFILER_USER_MODE_SAMPLER, PROFILER_KERNEL_MODE_SAMPLER or PROFILER_DUMMY_MODE_SAMPLER |
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204 */ |
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205 virtual TInt GetSamplerType() = 0; |
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206 |
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207 |
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208 // some internal inline methods, used by engine |
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209 inline TInt Flush(); |
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210 inline TInt AddSample(TUint8* sample, TUint32 length, TInt limitSize); |
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211 inline void SetOrder( TInt aOrder ); |
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212 inline static void ListAllImplementationsL(RImplInfoPtrArray& aImplInfoArray); |
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213 |
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214 /** |
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215 * Static methods for getting setting value out of descriptor |
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216 * |
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217 * @param aBuf buffer where to convert the value |
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218 * @param aValue parameter where to store the requested type of value |
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219 */ |
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220 inline static void Str2Bool(const TDesC8& aBuf, TBool& aValue); |
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221 inline static void Str2Int(const TDesC8& aBuf, TInt& aValue); |
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222 inline static void Str2Int(const TDesC8& aBuf, TUint32& aValue); |
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223 |
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224 /** iDtor_ID_Key Instance identifier key. When instance of an |
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225 * implementation is created by ECOM framework, the |
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226 * framework will assign UID for it. The UID is used in |
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227 * destructor to notify framework that this instance is |
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228 * being destroyed and resources can be released. |
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229 */ |
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230 TUid iDtor_ID_Key; |
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231 |
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232 /** |
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233 * Index of the plugin in listbox. Used for CSamplerPluginLoader. Default |
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234 * value is KSamplerPluginNotIndexed which means not ordered. This value is |
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235 * read, if defined, from the opaque_data field of the plugin's resource |
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236 * definition. Index starts from 0. |
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237 */ |
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238 TInt iOrder; |
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239 |
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240 public: |
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241 TInt iSamplerType; |
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242 |
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243 // this variable must be defined by the extending classes!! |
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244 TInt iSamplerId; |
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245 |
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246 CProfilerSampleStream* iStream; |
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247 TBool iEnabled; |
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248 |
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249 private: |
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250 TBapBuf* iBuffer; |
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251 }; |
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252 |
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253 #include <piprofiler/ProfilerGenericClassesUsr.h> |
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254 #include <piprofiler/SamplerPluginInterface.inl> |
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255 |
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256 |
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257 #endif // __SAMPLER_PLUGIN_INTERFACE__ |