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1 /* |
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2 * Copyright (c) 2007 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 the License "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: inline implementation of Handle |
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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 * %version: 4 % |
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20 */ |
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21 |
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22 #include "algorithm.h" // for operator != |
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23 #include <wlanosa.h> // for assert |
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24 |
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25 // ----------------------------------------------------------------------------- |
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26 // |
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27 // ----------------------------------------------------------------------------- |
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28 // |
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29 template<class T> |
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30 inline Handle<T>::Handle( T& aElem ) |
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31 : iData( &aElem ), iRefCount( new TInt( 1 ) ) |
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32 { |
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33 TraceDump(INFO_LEVEL, (("[WLAN] Handle ctor +: 0x%08x"), this)); |
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34 TraceDump(INFO_LEVEL, (("[WLAN] data: 0x%08x"), iData)); |
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35 TraceDump(INFO_LEVEL, (("[WLAN] refcount: 0x%08x"), iRefCount)); |
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36 |
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37 if ( iRefCount ) |
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38 { |
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39 // allocation success |
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40 TraceDump(INFO_LEVEL, |
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41 (("[WLAN] reference count: %d"), *iRefCount)); |
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42 Validate(); |
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43 } |
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44 else |
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45 { |
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46 // allocation failure |
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47 TraceDump(ERROR_LEVEL, ("[WLAN] error: allocation")); |
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48 Trace( ERROR_LEVEL, |
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49 reinterpret_cast<const TInt8*>(WLAN_FILE), __LINE__ ); |
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50 |
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51 InValidate(); |
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52 } |
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53 |
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54 TraceDump(INFO_LEVEL, (("[WLAN] Handle ctor -: 0x%08x"), this)); |
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55 } |
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56 |
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57 |
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58 // ----------------------------------------------------------------------------- |
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59 // |
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60 // ----------------------------------------------------------------------------- |
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61 // |
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62 template<class T> |
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63 inline Handle<T>::~Handle() |
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64 { |
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65 TraceDump(INFO_LEVEL, (("[WLAN] Handle dtor +: 0x%08x"), this)); |
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66 |
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67 Dispose(); |
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68 |
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69 TraceDump(INFO_LEVEL, (("[WLAN] Handle dtor -: 0x%08x"), this)); |
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70 } |
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71 |
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72 // ----------------------------------------------------------------------------- |
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73 // |
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74 // ----------------------------------------------------------------------------- |
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75 // |
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76 template<class T> |
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77 inline Handle<T>::Handle( const Self& aElem ) |
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78 : iData( aElem.iData ), iRefCount( aElem.iRefCount ) |
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79 { |
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80 TraceDump(INFO_LEVEL, (("[WLAN] Handle copy ctor +: 0x%08x"), this)); |
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81 TraceDump(INFO_LEVEL, (("[WLAN] data: 0x%08x"), iData)); |
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82 TraceDump(INFO_LEVEL, (("[WLAN] refcount: 0x%08x"), iRefCount)); |
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83 |
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84 |
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85 MWlanOsa::Assert( reinterpret_cast<const TInt8*>(WLAN_FILE), |
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86 __LINE__, (iRefCount != NULL) ); |
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87 |
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88 ++(*iRefCount); |
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89 TraceDump(INFO_LEVEL, (("[WLAN] reference count: %d"), *iRefCount)); |
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90 |
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91 TraceDump(INFO_LEVEL, (("[WLAN] Handle copy ctor -: 0x%08x"), this)); |
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92 } |
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93 |
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94 // ----------------------------------------------------------------------------- |
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95 // |
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96 // ----------------------------------------------------------------------------- |
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97 // |
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98 template<class T> |
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99 inline Handle<T>& Handle<T>::operator=( const Self& aElem ) |
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100 { |
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101 TraceDump(INFO_LEVEL, |
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102 (("[WLAN] Handle assignement operator +: 0x%08x"), this)); |
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103 |
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104 if ( *this != aElem ) |
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105 { |
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106 Dispose(); |
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107 |
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108 iData = aElem.iData; |
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109 iRefCount = aElem.iRefCount; |
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110 |
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111 TraceDump(INFO_LEVEL, (("[WLAN] data: 0x%08x"), iData)); |
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112 TraceDump(INFO_LEVEL, (("[WLAN] refcount: 0x%08x"), iRefCount)); |
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113 |
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114 MWlanOsa::Assert( reinterpret_cast<const TInt8*>(WLAN_FILE), |
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115 __LINE__, (iRefCount != NULL) ); |
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116 |
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117 ++(*iRefCount); |
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118 } |
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119 else |
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120 { |
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121 // left intentionally empty |
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122 } |
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123 |
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124 TraceDump(INFO_LEVEL, (("[WLAN] reference count: %d"), *iRefCount)); |
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125 TraceDump(INFO_LEVEL, |
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126 (("[WLAN] Handle assignement operator -: 0x%08x"), this)); |
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127 |
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128 return *this; |
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129 } |
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130 |
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131 // ----------------------------------------------------------------------------- |
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132 // |
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133 // ----------------------------------------------------------------------------- |
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134 // |
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135 template<class T> |
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136 inline T* Handle<T>::operator->() |
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137 { |
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138 return iData; |
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139 } |
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140 |
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141 // ----------------------------------------------------------------------------- |
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142 // |
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143 // ----------------------------------------------------------------------------- |
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144 // |
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145 template<class T> |
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146 inline T* Handle<T>::Data() |
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147 { |
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148 MWlanOsa::Assert( reinterpret_cast<const TInt8*>(WLAN_FILE), |
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149 __LINE__, (iData != NULL) ); |
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150 return iData; |
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151 } |
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152 |
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153 // ----------------------------------------------------------------------------- |
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154 // |
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155 // ----------------------------------------------------------------------------- |
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156 // |
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157 template<class T> |
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158 inline const T* Handle<T>::Data() const |
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159 { |
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160 MWlanOsa::Assert( reinterpret_cast<const TInt8*>(WLAN_FILE), |
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161 __LINE__, (iData != NULL) ); |
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162 return iData; |
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163 } |
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164 |
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165 // ----------------------------------------------------------------------------- |
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166 // only upon allocation failure return EFalse |
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167 // ----------------------------------------------------------------------------- |
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168 // |
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169 template<class T> |
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170 inline TBool Handle<T>::Bind( T& aElem ) |
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171 { |
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172 TraceDump(INFO_LEVEL, (("[WLAN] Handle::Bind +: 0x%08x"), this)); |
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173 |
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174 TBool ret( ETrue ); |
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175 |
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176 if ( aElem != *iData ) |
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177 { |
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178 if ( --(*iRefCount) == 0 ) |
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179 { |
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180 TraceDump(INFO_LEVEL, |
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181 ("[WLAN] Handle::Bind deallocate referenced data")); |
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182 TraceDump(INFO_LEVEL, |
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183 (("[WLAN] old data delloac: 0x%08x"), iData)); |
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184 TraceDump(INFO_LEVEL, (("[WLAN] refcount: 0x%08x"), iRefCount)); |
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185 |
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186 delete iData; |
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187 ++(*iRefCount); // recycle counter |
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188 } |
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189 else |
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190 { |
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191 // references still exist after this critter is a goner |
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192 // as we are doing a rebind we shall create a new counter |
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193 iRefCount = new TInt( 1 ); |
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194 if ( !iRefCount ) |
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195 { |
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196 TraceDump(ERROR_LEVEL, ("[WLAN] error: allocation")); |
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197 Trace( ERROR_LEVEL, |
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198 reinterpret_cast<const TInt8*>(WLAN_FILE), __LINE__ ); |
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199 |
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200 ret = EFalse; |
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201 } |
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202 else |
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203 { |
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204 // allocation success |
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205 // left intentionally empty |
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206 TraceDump(INFO_LEVEL, |
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207 (("[WLAN] new refcount: 0x%08x"), iRefCount)); |
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208 } |
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209 } |
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210 |
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211 iData = &aElem; |
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212 TraceDump(INFO_LEVEL, (("[WLAN] new data: 0x%08x"), iData)); |
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213 } |
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214 else |
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215 { |
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216 // left intentionally empty |
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217 } |
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218 |
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219 TraceDump(INFO_LEVEL, (("[WLAN] reference count: %d"), *iRefCount)); |
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220 TraceDump(INFO_LEVEL, (("[WLAN] Handle::Bind -: 0x%08x"), this)); |
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221 |
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222 return ret; |
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223 } |
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224 |
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225 // ----------------------------------------------------------------------------- |
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226 // |
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227 // ----------------------------------------------------------------------------- |
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228 // |
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229 template<class T> |
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230 inline void Handle<T>::Dispose() |
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231 { |
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232 TraceDump(INFO_LEVEL, (("[WLAN] Handle::Dispose +: 0x%08x"), this)); |
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233 |
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234 if ( IsValid() ) |
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235 { |
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236 // we are a valid object |
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237 MWlanOsa::Assert( reinterpret_cast<const TInt8*>(WLAN_FILE), |
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238 __LINE__, (iRefCount != NULL) ); |
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239 |
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240 if ( --(*iRefCount) == 0 ) |
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241 { |
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242 TraceDump(INFO_LEVEL, |
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243 ("[WLAN] Handle::Dispose deallocate referenced data")); |
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244 |
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245 TraceDump(INFO_LEVEL, (("[WLAN] data: 0x%08x"), iData)); |
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246 delete iData; |
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247 TraceDump(INFO_LEVEL, (("[WLAN] refcount: 0x%08x"), iRefCount)); |
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248 delete iRefCount; |
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249 } |
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250 else |
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251 { |
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252 // references still exist after this critter is a goner |
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253 // left intentionally empty |
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254 TraceDump(INFO_LEVEL, |
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255 (("[WLAN] reference count: %d"), *iRefCount)); |
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256 } |
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257 } |
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258 else |
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259 { |
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260 // we are an invalid object |
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261 // left intentionally empty |
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262 } |
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263 |
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264 TraceDump(INFO_LEVEL, (("[WLAN] Handle::Dispose -: 0x%08x"), this)); |
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265 } |