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: Declaration of the server side session class CATStorageServerSession |
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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 ATSTORAGESERVERSESSION_H |
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20 #define ATSTORAGESERVERSESSION_H |
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21 |
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22 |
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23 // INCLUDES |
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24 #include <e32base.h> |
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25 #include <f32file.h> |
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26 #include <analyzetool/atcommon.h> |
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27 |
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28 // FORWARD DECLARATIONS |
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29 class CATStorageServer; |
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30 class CATMemoryEntry; |
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31 |
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32 // CLASS DECLARATIONS |
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33 |
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34 /** |
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35 * A class for storing memory addresses and sizes of allocations. |
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36 * Needed for giving allocation information for the configuration UI. |
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37 */ |
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38 class TAllocInfo |
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39 { |
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40 public: |
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41 |
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42 // Constructor |
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43 TAllocInfo( TUint32 aMemAddress, TInt aAllocSize ); |
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44 |
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45 /** Address of a memory allocation. */ |
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46 const TUint32 iMemAddress; |
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47 |
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48 /** Size of the associated allocation. */ |
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49 const TInt iAllocSize; |
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50 }; |
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51 |
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52 |
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53 /** |
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54 * The session class for Storage Server. |
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55 * When the Storage Server client connects to the server, a new object of this |
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56 * class is constructed. So, for every client there is an associated object |
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57 * of this class. CATStorageServer forwards all client messages to their associated |
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58 * session objects. |
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59 */ |
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60 class CATStorageServerSession : public CSession2 |
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61 { |
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62 public: // Enumerations |
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63 |
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64 public: // Constructors and destructor |
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65 |
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66 /** |
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67 * Two-phased constructor that can leave. |
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68 * @return A new instance of this class |
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69 */ |
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70 static CATStorageServerSession* NewL( CATStorageServer& aStorageServer ); |
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71 |
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72 /** |
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73 * Two-phased constructor that can leave and leaves a pointer |
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74 * on the cleanup stack. |
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75 * @return A new instance of this class |
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76 */ |
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77 static CATStorageServerSession* NewLC( CATStorageServer& aStorageServer ); |
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78 |
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79 /** |
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80 * Destructor |
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81 */ |
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82 virtual ~CATStorageServerSession(); |
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83 |
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84 public: // Functions from base classes |
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85 |
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86 /** |
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87 * Receives messages sent by a client. |
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88 * @param aMessage A message from a client |
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89 */ |
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90 virtual void ServiceL( const RMessage2& aMessage ); |
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91 |
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92 protected: // new functions |
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93 |
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94 /** |
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95 * Initializes this session for logging. This includes opening a logging file |
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96 * with a requested name. The method is to be called as the first method after |
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97 * connecting to the server. The method logs information on process starting into |
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98 * the just opened logging file. |
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99 * If a logging session is already ongoing, the method makes the client raise an |
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100 * STSEClient: 3 panic, and returns KErrCancel. |
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101 * @param aMessage A message that includes parameters sent by the client. |
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102 * @return KErrNone, if successful; KErrCancel, if a logging session is already |
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103 * ongoing. Otherwise one of the other system wide error codes. |
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104 */ |
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105 TInt LogProcessStartedL( const RMessage2& aMessage ); |
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106 |
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107 /** |
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108 * Initializes this session for logging. The method is to be called as the first |
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109 * method after connecting to the server. The method logs information on process |
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110 * starting into XTI channel. |
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111 * If a logging session is already ongoing, the method makes the client raise an |
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112 * STSEClient: 3 panic, and returns KErrCancel. |
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113 * @param aMessage A message that includes parameters sent by the client. |
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114 * @return KErrNone, if successful; KErrCancel, if a logging session is already |
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115 * ongoing. Otherwise one of the other system wide error codes. |
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116 */ |
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117 TInt LogProcessStartXtiL( const RMessage2& aMessage ); |
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118 |
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119 /** |
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120 * Logs information on a DLL load into the opened file. |
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121 * If a logging session is not ongoing, the method makes the client raise an |
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122 * STSEClient: 3 panic, and returns KErrCancel. |
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123 * @param aMessage A message that includes parameters sent by the client. |
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124 * @return KErrNone, if successful; KErrCancel, if a logging session is not |
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125 * currently ongoing; Otherwise one of the other system wide error codes. |
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126 */ |
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127 TInt LogDllLoadedL( const RMessage2& aMessage ); |
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128 |
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129 /** |
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130 * Logs information on a DLL load into XTI channel. |
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131 * If a logging session is not ongoing, the method makes the client raise an |
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132 * STSEClient: 3 panic, and returns KErrCancel. |
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133 * @param aMessage A message that includes parameters sent by the client. |
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134 * @return KErrNone, if successful; KErrCancel, if a logging session is not |
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135 * currently ongoing; Otherwise one of the other system wide error codes. |
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136 */ |
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137 TInt LogDllLoadXtiL( const RMessage2& aMessage ); |
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138 |
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139 /** |
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140 * Logs information on a DLL unload into the opened file. |
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141 * If a logging session is not ongoing, the method makes the client raise an |
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142 * STSEClient: 3 panic, and returns KErrCancel. |
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143 * @param aMessage A message that includes parameters sent by the client. |
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144 * @return KErrNone, if successful; KErrCancel, if a logging session is not |
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145 * currently ongoing; Otherwise one of the other system wide error codes. |
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146 */ |
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147 TInt LogDllUnloadedL( const RMessage2& aMessage ); |
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148 |
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149 /** |
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150 * Logs information on a DLL unload into XTI channel. |
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151 * If a logging session is not ongoing, the method makes the client raise an |
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152 * STSEClient: 3 panic, and returns KErrCancel. |
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153 * @param aMessage A message that includes parameters sent by the client. |
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154 * @return KErrNone, if successful; KErrCancel, if a logging session is not |
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155 * currently ongoing; Otherwise one of the other system wide error codes. |
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156 */ |
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157 TInt LogDllUnloadXtiL( const RMessage2& aMessage ); |
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158 |
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159 /** |
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160 * Stores a memory allocation (memory address, current call stack, allocation |
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161 * time and allocation size) in an internal array. |
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162 * If a logging session is not ongoing, the method makes the client raise an |
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163 * STSEClient: 3 panic, and returns KErrCancel. |
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164 * @param aMessage A message that includes parameters sent by the client. |
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165 * @return KErrNone, if successful; KErrCancel, if a logging session is not |
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166 * currently ongoing; KErrAlreadyExists, if an attempt is being made to allocate |
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167 * again an already allocated memory area; Otherwise one of the other system |
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168 * wide error codes. |
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169 */ |
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170 TInt LogMemoryAllocatedL( const RMessage2& aMessage ); |
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171 |
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172 /** |
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173 * Logs information on a memory allocation into XTI channel. |
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174 * If a logging session is not ongoing, the method makes the client raise an |
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175 * STSEClient: 3 panic, and returns KErrCancel. |
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176 * @param aMessage A message that includes parameters sent by the client. |
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177 * @return KErrNone, if successful; KErrCancel, if a logging session is not |
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178 * currently ongoing; KErrAlreadyExists, if an attempt is being made to allocate |
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179 * again an already allocated memory area; Otherwise one of the other system |
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180 * wide error codes. |
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181 */ |
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182 TInt LogMemoryAllocXtiL( const RMessage2& aMessage ); |
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183 |
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184 /** |
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185 * Check a memory allocation (memory address) from an internal array. |
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186 * If a logging session is not ongoing, the method makes the client raise an |
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187 * STSEClient: 3 panic, and returns KErrCancel. |
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188 * @param aMessage A message that includes parameters sent by the client. |
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189 * @return KErrNone, if memory address found in array; |
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190 * KErrNotFound, if the requested memory address was not found. |
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191 */ |
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192 TInt IsMemoryAdded( const RMessage2& aMessage, const TBool aRemoveAlloc = EFalse ); |
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193 |
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194 /** |
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195 * Removes a memory allocation (memory address, current call stack, allocation |
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196 * time and allocation size) from an internal array. |
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197 * If a logging session is not ongoing, the method makes the client raise an |
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198 * STSEClient: 3 panic, and returns KErrCancel. |
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199 * @param aMessage A message that includes parameters sent by the client. |
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200 * @return KErrNone, if successful; KErrCancel, if a logging session is not |
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201 * currently ongoing; KErrNotFound, if the requested memory address was not |
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202 * found; Otherwise one of the other system wide error codes. |
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203 */ |
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204 TInt LogMemoryFreedL( const RMessage2& aMessage ); |
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205 |
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206 /** |
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207 * Logs information on freeing of a memory allocatin into XTI channel. |
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208 * If a logging session is not ongoing, the method makes the client raise an |
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209 * STSEClient: 3 panic, and returns KErrCancel. |
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210 * @param aMessage A message that includes parameters sent by the client. |
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211 * @return KErrNone, if successful; KErrCancel, if a logging session is not |
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212 * currently ongoing; KErrNotFound, if the requested memory address was not |
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213 * found; Otherwise one of the other system wide error codes. |
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214 */ |
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215 TInt LogMemoryFreedXtiL( const RMessage2& aMessage ); |
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216 |
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217 /** |
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218 * Logs all non-released memory allocations into the opened file as memory leaks. |
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219 * Then the method logs a number of possibly occured handle leaks into the file. |
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220 * Next, the method logs information on process ending into the logging file. |
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221 * Finally, this method closes the logging file opened for the connected process, |
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222 * and ends the current logging session. However, this method does not end the |
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223 * actual client-server session. |
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224 * If a logging session is not ongoing, the method makes the client raise an |
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225 * STSEClient: 3 panic, and returns KErrCancel. |
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226 * @param aMessage A message that includes parameters sent by the client. |
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227 * @return KErrNone, if successful; KErrCancel, if a logging session is not |
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228 * currently ongoing; KErrNotSupported if this method is called with a wrong |
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229 * process id from the client. Otherwise one of the other system wide error |
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230 * codes. |
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231 */ |
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232 TInt LogProcessEndedL( const RMessage2& aMessage ); |
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233 |
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234 /** |
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235 * Logs a number of possibly occured handle leaks into XTI channel. Then, the method |
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236 * logs information on process ending into XTI channel. The method also |
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237 * ends the current logging session. However, this method does not end the actual |
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238 * client-server session. |
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239 * If a logging session is not ongoing, the method makes the client raise an |
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240 * STSEClient: 3 panic, and returns KErrCancel. |
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241 * @param aMessage A message that includes parameters sent by the client. |
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242 * @return KErrNone, if successful; KErrCancel, if a logging session is not |
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243 * currently ongoing; KErrNotSupported if this method is called with a wrong |
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244 * process id from the client. Otherwise one of the other system wide error |
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245 * codes. |
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246 */ |
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247 TInt LogProcessEndXtiL( const RMessage2& aMessage ); |
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248 |
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249 /** |
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250 * Checks if a given memory address can be found. |
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251 * If a logging session is not ongoing, the method makes the client raise an |
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252 * STSEClient: 3 panic, and returns KErrCancel. |
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253 * @param aMessage A message that includes parameters sent by the client. |
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254 * @return When the system is logging into a file: the index of a found |
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255 * memory address, or KErrNotFound, if a matching memory address cannot |
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256 * be found. KErrNone, when the system is not logging into a file. |
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257 * KErrCancel, if a logging session is not currently ongoing. |
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258 */ |
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259 TInt CheckMemoryAddressL( const RMessage2& aMessage ); |
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260 |
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261 /** |
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262 * Checks if a given memory address can be found. |
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263 * If a logging session is not ongoing, the method makes the client raise an |
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264 * STSEClient: 3 panic, and returns KErrCancel. |
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265 * @param aMessage A message that includes parameters sent by the client. |
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266 * @return When the system is logging into a file: the index of a found |
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267 * memory address, or KErrNotFound, if a matching memory address cannot |
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268 * be found. KErrNone, when the system is not logging into a file. |
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269 * KErrCancel, if a logging session is not currently ongoing. |
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270 */ |
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271 TInt CheckMemoryAddressXti( const RMessage2& aMessage ); |
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272 |
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273 /** |
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274 * Gets all the processes currently logging with AnalyzeTool |
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275 * @param aMessage A message that includes parameters sent by the client. |
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276 * On return a buffer including all the currently logging processes is written |
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277 * into this message. |
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278 * @return KErrNone, if successful; otherwise one of the other system wide error |
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279 * codes. |
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280 */ |
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281 TInt GetProcessesL( const RMessage2& aMessage ); |
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282 |
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283 /** |
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284 * Gets all the DLLs loaded by the process determined by the parameters. |
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285 * @param aMessage A message that includes parameters sent by the client. |
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286 * A buffer including all the DLLs loaded by the requested process is |
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287 * written into this message. |
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288 * @return KErrNone, if successful; KErrNotFound, if the requested process was |
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289 * not found; otherwise one of the other system wide error codes. |
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290 */ |
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291 TInt GetDllsL( const RMessage2& aMessage ); |
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292 |
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293 /** |
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294 * Gets the logging mode of the process determined by the parameters. |
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295 * @param aMessage A message that includes parameters sent by the client. |
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296 * On return, the logging mode is written into this message. |
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297 * @return KErrNone, if successful; KErrNotFound, if the requested process was |
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298 * not found; otherwise one of the other system wide error codes. |
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299 */ |
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300 TInt GetLoggingModeL( const RMessage2& aMessage ); |
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301 |
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302 /** |
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303 * Starts a sub test for the given process. |
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304 * @param aMessage A message that includes parameters sent by the client. |
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305 * @return KErrNone, if successful; KErrNotFound, if the requested process is not |
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306 * found; KErrNotSupported, if the requested process does not have a logging |
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307 * session ongoing or its logging mode is not EATLogToXti; Otherwise one of the |
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308 * other system wide error codes. |
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309 */ |
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310 TInt StartSubtestL( const RMessage2& aMessage ); |
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311 |
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312 /** |
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313 * Stops a sub test for the given process. |
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314 * @param aMessage A message that includes parameters sent by the client. |
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315 * @return KErrNone, if successful; KErrNotFound, if the requested process is not |
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316 * found; KErrNotSupported, if the requested process does not have a logging |
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317 * session ongoing or its logging mode is not EATLogToXti; Otherwise one of the |
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318 * other system wide error codes. |
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319 */ |
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320 TInt StopSubtestL( const RMessage2& aMessage ); |
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321 |
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322 /** |
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323 * Starts a sub test for the calling process. Does not need a PID from the client. |
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324 * @param aMessage A message that includes parameters sent by the client. |
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325 * @return KErrNone, if successful; KErrNotSupported, if the calling process |
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326 * does not have a logging session ongoing or its logging mode is not |
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327 * EATLogToXti; Otherwise one of the other system wide error codes. |
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328 */ |
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329 TInt StartSubtest2L( const RMessage2& aMessage ); |
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330 |
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331 /** |
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332 * Stops a sub test for the calling process. Does not need a PID from the client. |
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333 * @param aMessage A message that includes parameters sent by the client. |
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334 * @return KErrNone, if successful; KErrNotSupported, if the calling process |
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335 * does not have a logging session ongoing or its logging mode is not |
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336 * EATLogToXti; Otherwise one of the other system wide error codes. |
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337 */ |
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338 TInt StopSubtest2( const RMessage2& aMessage ); |
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339 |
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340 /** |
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341 * Gets the number and total size of the current memory chunks allocated by the |
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342 * requested process. |
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343 * @param aMessage A message that includes parameters sent by the client. The |
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344 * requested information is written into this message. |
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345 * @return KErrNone, if successful; KErrNotFound, if the requested process was |
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346 * not found; otherwise one of the other system wide error codes. |
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347 */ |
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348 TInt GetCurrentAllocsL( const RMessage2& aMessage ); |
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349 |
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350 /** |
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351 * Gets the maximum number of memory chunks and the maximum amount of memory |
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352 * allocated by the requested process during the test run. |
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353 * @param aMessage A message that includes parameters sent by the client. The |
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354 * requested information is written into this message. |
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355 * @return KErrNone, if successful; KErrNotFound, if the requested process was |
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356 * not found; otherwise one of the other system wide error codes. |
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357 */ |
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358 TInt GetMaxAllocsL( const RMessage2& aMessage ); |
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359 |
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360 /** |
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361 * Cancels logging for the requested process. After logging of a given process |
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362 * has been cancelled, the session associated with that process will not be |
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363 * usable anymore. If a process wants to start logging again, it needs to close |
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364 * the handle and open it again in order to create a new session. Until then, any |
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365 * of the server's methods that can be called by the client will return |
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366 * KErrCancel. |
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367 * @param aMessage A message that includes parameters sent by the client. |
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368 * @return KErrNone, if successful; KErrNotFound, if the requested process was |
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369 * not found; otherwise one of the other system wide error codes. |
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370 */ |
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371 TInt CancelLoggingL( const RMessage2& aMessage ); |
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372 |
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373 /** |
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374 * Gets the logging file of the process determined by the parameters. |
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375 * @param aMessage A message that includes parameters sent by the client. |
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376 * On return, the logging file is written into this message. |
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377 * @return KErrNone, if successful; KErrNotFound, if the requested process was |
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378 * not found; otherwise one of the other system wide error codes. |
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379 */ |
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380 TInt GetLoggingFileL( const RMessage2& aMessage ); |
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381 |
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382 /** |
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383 * Gets the mode of the process determined by the parameters. |
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384 * @param aMessage A message that includes parameters sent by the client. |
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385 * On return, the logging file is written into this message. |
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386 * @return KErrNone, if successful; KErrNotFound, if the requested process was |
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387 * not found; otherwise one of the other system wide error codes. |
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388 */ |
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389 TInt GetUdebL( const RMessage2& aMessage ); |
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390 |
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391 /** |
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392 * Sets the mode of the process determined by the parameters. |
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393 * @param aMessage A message that includes parameters sent by the client. |
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394 */ |
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395 void SetUdeb( const RMessage2& aMessage ); |
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396 |
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397 private: // New functions for internal use |
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398 |
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399 /** |
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400 * Releases the resources reserved by this object, and before closing the logging |
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401 * file and file server session, the method logs information on the occured error |
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402 * into the logging file. |
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403 * @param aError The error code to be logged. |
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404 */ |
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405 void HandleError( TInt aError ); |
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406 |
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407 /** |
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408 * Releases the resources reserved by this object, and logs information on the |
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409 * occured error into XTI channel. |
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410 * @param aError The error code to be logged. |
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411 */ |
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412 void HandleErrorXti( TInt aError ); |
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413 |
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414 /** |
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415 * Opens a file server session and a file with the name specified. |
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416 * @param aFileName The name of the file into which to log. |
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417 * @param aProcessName Current process name. |
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418 * @return KErrNone, if successful; otherwise one of the other system wide |
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419 * error codes. |
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420 */ |
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421 TInt OpenFsAndFile( const TDesC& aFileName, const TDesC8& aProcessName ); |
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422 |
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423 /** |
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424 * Method is used to parse file name extension. |
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425 * @param aFileName The name of the file into which to log. |
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426 * @param aExtension Parsed file extension. |
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427 */ |
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428 void ParseExtension( TDes& aFileName, TDes& aExtension ); |
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429 |
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430 /** |
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431 * Called internally when need generate new file name. |
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432 * @param aFileName The name of the file into which to log. |
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433 * @param aProcessName Current process name. |
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434 */ |
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435 void GenerateNewFileName( TDes& aFileName, const TDesC8& aProcessName ); |
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436 |
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437 /** |
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438 * Method is used to check that file exists and is valid. |
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439 * @param aFileName The name of the file into which to log. |
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440 */ |
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441 void CheckIfFileAlreadyExist( const TDes& aFileName ); |
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442 |
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443 /** |
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444 * Method is used to check file version. |
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445 * @param aFileName The name of the file into which to log. |
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446 */ |
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447 void CheckFileVersion( const TDes& aFileName ); |
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448 |
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449 /** |
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450 * Closes the handles to the file server session and to the file (if currently open). |
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451 */ |
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452 void CloseFsAndFile(); |
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453 |
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454 /** |
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455 * Writes the memory leaks stored in the iLeakArray member array into the |
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456 * logging file opened for the current logging session. If the method is |
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457 * called in a wrong program state (logging session is not ongoing, or the |
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458 * logging mode is not EATLogToFile), STSEClient: 4, and STSEServer: 4 |
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459 * panics are raised. |
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460 * @param aMessage The current message from the client. |
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461 * @return KErrNone, if successful; otherwise one of the other system wide |
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462 * error codes. |
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463 */ |
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464 TInt PrintLeaksL( const RMessage2& aMessage ); |
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465 |
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466 /** |
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467 * Sets the server's mode of operation. The operation mode is determined with |
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468 * an enumeration value, which is received from the client. If the method is |
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469 * called in a wrong program state (logging session is ongoing), STSEClient: 4, |
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470 * and STSEServer: 4 panics are raised. |
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471 * @param aMessage The current message from the client. |
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472 */ |
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473 void SetLogOption( const RMessage2& aMessage ); |
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474 |
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475 /** |
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476 * Logs the given descriptor through XTI channel. |
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477 * @param aLogString The descriptor to be logged. |
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478 * @return KErrNone, if successful; KErrNotSupported, if a logging session is not |
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479 * ongoing, or the logging mode is not EATLogToXti; |
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480 */ |
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481 TInt LogThroughXti( const TDesC& aLogString ) const; |
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482 |
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483 /** |
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484 * Gives a reference to the allocation info array of this class. |
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485 * @return A reference to iAllocInfoArray array |
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486 */ |
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487 RArray<TAllocInfo>& AllocInfoArray(); |
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488 |
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489 /** |
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490 * Creates a panic in the associated client's code. |
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491 * @param aPanic The panic code |
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492 * @param aMessage The message associated with this panic. |
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493 */ |
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494 void PanicClient( TInt aPanic, const RMessage2& aMessage ); |
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495 |
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496 /** |
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497 * Logs the abnormal end to the XTI channel(If logging mode is EATLogToXti) |
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498 * and to the file(If logging mode is EATLogToFile). |
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499 */ |
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500 void LogAbnormalEnd(); |
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501 |
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502 /** |
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503 * Get the current universal time. |
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504 * @return Time |
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505 */ |
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506 TInt64 GetTime(); |
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507 |
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508 private: // Constructors |
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509 |
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510 /** |
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511 * C++ default constructor. |
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512 */ |
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513 CATStorageServerSession( CATStorageServer& aStorageServer ); |
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514 |
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515 /** |
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516 * Symbian 2nd phase constructor. |
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517 */ |
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518 void ConstructL(); |
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519 |
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520 private: // Data |
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521 |
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522 /** A reference to the CATStorageServer object that has created this session */ |
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523 CATStorageServer& iStorageServer; |
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524 |
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525 /** A handle to a file server */ |
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526 RFs iFileServer; |
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527 |
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528 /** A handle to a file */ |
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529 RFile iFile; |
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530 |
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531 /** A member variable for storing results of server function calls. */ |
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532 TInt iError; |
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533 |
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534 /** An object for getting time stamps */ |
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535 TTime iTime; |
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536 |
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537 /** |
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538 * An array for storing CATMemoryEntry pointers. Used when logging |
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539 * to an S60 file. |
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540 */ |
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541 RPointerArray<CATMemoryEntry> iLeakArray; |
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542 |
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543 /** |
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544 * An array for storing TAllocInfo objects. Used for keeping records on memory |
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545 * allocations and their sizes. |
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546 */ |
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547 RArray<TAllocInfo> iAllocInfoArray; |
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548 |
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549 /** The ID of the process associated with this session. */ |
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550 TUint iProcessId; |
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551 |
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552 /** |
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553 * A boolean telling whether this session has been initialized for logging |
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554 * ( whether the client's LogProcessStarted() method has been called ) or not. |
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555 */ |
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556 TBool iLoggingOngoing; |
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557 |
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558 /** |
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559 * A variable telling the number of microseconds from January 1st, 0 AD |
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560 * nominal Gregorian to January 1st, 1970 AD nominal Gregorian. |
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561 */ |
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562 TInt64 iMicroSecondsAt1970; |
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563 |
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564 /** |
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565 * An enumeration that tells the current operation mode of the Storage Server. |
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566 */ |
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567 TATLogOption iLogOption; |
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568 |
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569 /** The total size of all the current allocations of this process */ |
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570 TUint32 iCurAllocSize; |
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571 |
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572 /** The maximum number of allocations of this process */ |
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573 TUint32 iMaxAllocs; |
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574 |
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575 /** The maximum total size of allocations of this process */ |
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576 TUint32 iMaxAllocSize; |
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577 |
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578 /** The logging file of this process */ |
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579 TBuf8<KMaxFileName> iLogFile; |
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580 |
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581 /** The mode of the session. Default is 1 = UDEB */ |
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582 TUint32 iIsUdeb; |
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583 }; |
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584 |
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585 #endif // ATSTORAGESERVERSESSION_H |
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586 |
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587 // End of File |
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