FreeCalypso > hg > fc-magnetite

annotate src/ui3/bmi/mmiUserData.c @ 541:5019764a0e9f

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doc/Config-vars: RVTMUX_ON_MODEM documented
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 06 Nov 2018 05:20:02 +0000
parents 6a4d9f47793e
children
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1 /*******************************************************************************
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2
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3 CONDAT (UK)
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4
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5 ********************************************************************************
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6
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7 This software product is the property of Condat (UK) Ltd and may not be
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8 disclosed to any third party without the express permission of the owner.
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9
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10 ********************************************************************************
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11
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12 $Project name: Basic MMI
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13 $Project code: BMI (6349)
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14 $Module: MMI
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15 $File: MmiUserData.c
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16 $Revision: 1.0
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17
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18 $Author: Condat(UK)
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19 $Date: 22/02/01
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20
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21 ********************************************************************************
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22
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23 Description:
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24
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26
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27 ********************************************************************************
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28
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29 $History: MmiUserData.c
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30
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31 25/10/00 Original Condat(UK) BMI version.
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32
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33 $End
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34
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35 *******************************************************************************/
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36
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37 #define ENTITY_MFW
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38
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39 /* includes */
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40 #include <string.h>
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41 #include <stdio.h>
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42 #include <stdlib.h>
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43
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44 #if defined (NEW_FRAME)
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45
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46 #include "typedefs.h"
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47 #include "vsi.h"
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48 #include "pei.h"
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49 #include "custom.h"
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50 #include "gsm.h"
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51
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52 #else
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53
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54 #include "STDDEFS.H"
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55 #include "custom.h"
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56 #include "gsm.h"
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57 #include "vsi.h"
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58
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59 #endif
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60 #include "mfw_sys.h"
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61 #include "mfw_mfw.h"
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62 #include "mfw_win.h"
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63
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64 #include "MmiMmi.h"
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65 #include "MmiUserData.h"
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66
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67
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68 typedef struct uDe
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69 {
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70 UserKey key;
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71 void *data;
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72 struct uDe *next;
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73 } UserDataElement, *UserDataLink;
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74
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75
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76 static UserDataLink userDataFind( UserDataLink first, UserKey key)
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77 {
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78 while( first != NULL && first->key != key )
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79 {
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80 first = first->next;
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81 }
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82
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83 return first;
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84 }
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85
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86
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87 static UserDataLink userDataPrevious( UserDataLink first,
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88 UserDataLink beforeThis)
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89 {
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90 if( first == beforeThis ) // <beforeThis> is the first element in the list.
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91 {
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92 return NULL;
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93 }
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94
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95 while( first->next != beforeThis )
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96 {
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97 first = first->next;
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98 }
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99
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100 return first;
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101 }
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102
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103
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104 /*
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105 * Sets the user data for <window> with <key> to <data>,
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106 * and returns the previous contents of the user data.
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107 * If <data> itself is returned no user data with <key>
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108 * existed and a new user data element with <key> has been created
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109 * and set to <data>.
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110 * If NULL is returned, either <window> was invalid or a new user data
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111 * element could not be created.
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112 */
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113 void *userDataHndSet( MfwHnd window, UserKey key, void *data)
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114 {
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115 if( window == NULL ) { return NULL; }
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116
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117 return userDataWinSet( (MfwWin *)((MfwHdr *)window)->data, key, data);
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118 }
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119
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120
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121 void *userDataWinSet( MfwWin *window, UserKey key, void *data)
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122 {
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123 UserDataLink thisOne;
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124
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125 if( window == NULL ) { return NULL; }
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126
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127 thisOne = userDataFind( (UserDataLink)window->user, key);
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128
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129 if( thisOne == NULL ) // element with <key> does not exist: create.
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130 {
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131 thisOne = (UserDataLink)ALLOC_MEMORY(sizeof(UserDataElement));
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132
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133 if( thisOne == NULL )
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134 {
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135 return NULL;
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136 }
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137
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138 thisOne->key = key;
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139 thisOne->data = data;
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140 thisOne->next = (UserDataLink)window->user;
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141
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142 window->user = (void *)thisOne;
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143
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144 return data;
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145 }
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146 else
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147 {
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148 void *oldData = thisOne->data;
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149
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150 thisOne->data = data;
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151
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152 return oldData;
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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 /*
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158 * Returns the user data for <window> with <key>.
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159 * If NULL is returned, either <window> was invalid or no user data
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160 * with <key> existed.
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161 */
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162 void *userDataHndGet( MfwHnd window, UserKey key)
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163 {
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164 if( window == NULL ) { return NULL; }
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165
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166 return userDataWinGet( (MfwWin *)((MfwHdr *)window)->data, key);
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167 }
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168
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169
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170 void *userDataWinGet( MfwWin *window, UserKey key)
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171 {
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172 UserDataLink thisOne;
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173
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174 if( window == NULL ) { return NULL; }
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175
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176 thisOne = userDataFind( (UserDataLink)window->user, key);
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177
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178 if( thisOne == NULL ) { return NULL; }
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179
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180 return thisOne->data;
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181 }
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182
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183
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184 /*
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185 * Deletes the user data for <window> with <key>, and returns the
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186 * contents of the user data.
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187 * If NULL is returned, either <window> was invalid or no user data
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188 * with <key> existed.
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189 */
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190 void *userDataHndDelete( MfwHnd window, UserKey key)
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191 {
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192 if( window == NULL ) { return NULL; }
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193
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194 return userDataWinDelete( (MfwWin *)((MfwHdr *)window)->data, key);
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195 }
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196
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197
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198 void *userDataWinDelete( MfwWin *window, UserKey key)
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199 {
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200 UserDataLink doomed;
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201
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202 if( window == NULL ) { return NULL; }
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203
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204 doomed = userDataFind( (UserDataLink)window->user, key);
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diff changeset
205
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206 if( doomed == NULL ) // element with <key> does not exist.
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207 {
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208 return NULL;
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209 }
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210 else
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211 {
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212 void * oldData = doomed->data;
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213 UserDataLink previous;
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214
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215 previous = userDataPrevious( (UserDataLink)window->user, doomed);
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diff changeset
216
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217 if( previous == NULL ) // <doomed> is the first element in the list.
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218 {
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diff changeset
219 window->user = (void *)doomed->next;
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220 }
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221 else
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diff changeset
222 {
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223 previous->next = doomed->next;
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224 }
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225
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226 FREE_MEMORY( (void *)doomed, sizeof(UserDataElement));
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227
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228 return oldData;
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229 }
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230 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231