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1 /* |
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2 * Copyright (c) 2005 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: An implementation for receiving command/event notifications and info. |
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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 // INCLUDE FILES |
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20 #include <e32base.h> |
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21 #include "MediatorNotificationsBody.h" |
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22 #include "MediatorServerClient.h" |
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23 #include "Debug.h" |
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24 |
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25 |
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26 // CONSTANTS |
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27 const TInt KMediatorDefaultCommandCount = 10; |
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28 const TInt KMediatorDefaultEventCount = 10; |
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29 |
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30 // ============================ MEMBER FUNCTIONS =============================== |
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31 |
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32 CMediatorNotificationsBody::CMediatorNotificationsBody() |
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33 : CActive( EPriorityNormal ), |
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34 iCommandArrayPtr(NULL, 0), |
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35 iEventArrayPtr(NULL, 0), |
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36 iCategoryBuffer( iCategory ), |
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37 iNotificationTypeBuffer( iNotificationType ), |
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38 iDestroyed(NULL) |
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39 |
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40 { |
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41 } |
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42 |
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43 void CMediatorNotificationsBody::ConstructL() |
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44 { |
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45 LOG(_L("[Mediator Server]\t CMediatorNotificationsBody::ConstructL\n")); |
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46 CActiveScheduler::Add( this ); |
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47 User::LeaveIfError( iMediatorServer.Connect() ); |
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48 } |
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49 |
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50 CMediatorNotificationsBody* CMediatorNotificationsBody::NewL() |
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51 { |
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52 CMediatorNotificationsBody* self = new( ELeave ) CMediatorNotificationsBody; |
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53 |
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54 CleanupStack::PushL( self ); |
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55 self->ConstructL(); |
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56 CleanupStack::Pop( self ); |
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57 |
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58 return self; |
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59 } |
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60 |
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61 CMediatorNotificationsBody::~CMediatorNotificationsBody() |
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62 { |
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63 Cancel(); |
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64 iMediatorServer.Close(); |
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65 iEventList.Close(); |
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66 iCommandList.Close(); |
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67 |
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68 if ( iDestroyed ) // RunL is being executed |
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69 { |
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70 *iDestroyed = ETrue; |
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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 // CMediatorNotificationsBody::RunL |
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76 // |
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77 // (other items were commented in a header). |
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78 // ----------------------------------------------------------------------------- |
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79 // |
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80 void CMediatorNotificationsBody::RunL() |
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81 { |
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82 TRACE(Print(_L("[Mediator Server]\t CMediatorNotificationsBody::RunL status %d\n"), iStatus.Int() )); |
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83 |
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84 if ( iStatus < 0 ) // We have an error |
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85 { |
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86 ERROR_TRACE(Print(_L("[Mediator] CMediatorNotificationsBody::RunL: iStatus=%d\n"), iStatus.Int() ) ); |
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87 |
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88 // Cleanup and return |
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89 iCommandList.Reset(); |
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90 iEventList.Reset(); |
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91 return; |
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92 } |
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93 |
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94 // Set the flag to the member variable that is updated by the destructor |
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95 // in case this instance is destroyed by observer callback. |
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96 // Otherwise an attempt to manipulate member data after destruction will cause a panic. |
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97 TBool destroyed = EFalse; |
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98 // iDestroyed is set individually in each case in order to prevent erros if a leave occurs |
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99 |
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100 TInt err = KErrNone; |
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101 |
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102 // Act according to notification type. NOTE! All the observer callback-calls are trapped because |
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103 // leave would cause a possible access violation in destructor (iDestoryed pointing to an non-existing variable) |
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104 switch( iNotificationType ) |
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105 { |
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106 case EMediatorEventsRegistered: |
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107 { |
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108 LOG(_L("[Mediator Server]\t Events registered\n")); |
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109 if ( iObserver ) |
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110 { |
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111 TBool fetchEvents = iStatus.Int() > iEventList.Count() ? ETrue : EFalse; |
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112 |
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113 ResizeEventListL( iStatus.Int() ); |
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114 |
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115 if ( fetchEvents ) |
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116 { |
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117 FetchEventListL(); |
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118 } |
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119 |
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120 iDestroyed = &destroyed; |
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121 TRAP( err, iObserver->MediatorEventsAddedL( iCategory.iDomain, |
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122 iCategory.iCategory, |
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123 iEventList ) ); |
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124 } |
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125 break; |
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126 } |
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127 case EMediatorCommandsRegistered: |
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128 { |
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129 LOG(_L("[Mediator Server]\t Commands registered\n")); |
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130 if ( iObserver ) |
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131 { |
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132 TBool fetchCommands = iStatus.Int() > iCommandList.Count() ? ETrue : EFalse; |
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133 |
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134 ResizeCommandListL( iStatus.Int() ); |
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135 |
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136 if ( fetchCommands ) |
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137 { |
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138 FetchCommandListL(); |
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139 } |
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140 |
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141 iDestroyed = &destroyed; |
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142 TRAP( err, iObserver->MediatorCommandsAddedL( iCategory.iDomain, |
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143 iCategory.iCategory, |
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144 iCommandList ) ); |
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145 } |
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146 break; |
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147 } |
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148 case EMediatorEventsUnregistered: |
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149 { |
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150 LOG(_L("[Mediator Server]\t Events unregistered\n")); |
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151 if ( iObserver ) |
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152 { |
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153 TBool fetchEvents = iStatus.Int() > iEventList.Count() ? ETrue : EFalse; |
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154 |
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155 ResizeEventListL( iStatus.Int() ); |
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156 |
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157 if ( fetchEvents ) |
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158 { |
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159 FetchEventListL(); |
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160 } |
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161 |
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162 iDestroyed = &destroyed; |
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163 TRAP( err, iObserver->MediatorEventsRemovedL( iCategory.iDomain, |
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164 iCategory.iCategory, |
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165 iEventList ) ); |
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166 } |
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167 break; |
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168 } |
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169 case EMediatorCommandsUnregistered: |
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170 { |
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171 LOG(_L("[Mediator Server]\t Commands unregistered\n")); |
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172 if ( iObserver ) |
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173 { |
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174 TBool fetchCommands = iStatus.Int() > iCommandList.Count() ? ETrue : EFalse; |
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175 |
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176 ResizeCommandListL( iStatus.Int() ); |
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177 |
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178 if ( fetchCommands ) |
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179 { |
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180 FetchCommandListL(); |
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181 } |
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182 |
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183 iDestroyed = &destroyed; |
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184 TRAP( err, iObserver->MediatorCommandsRemovedL( iCategory.iDomain, |
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185 iCategory.iCategory, |
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186 iCommandList ) ); |
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187 } |
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188 break; |
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189 } |
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190 case EMediatorCategoryUnregistered: |
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191 { |
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192 |
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193 LOG(_L("[Mediator Server]\t Category unregistered\n")); |
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194 if ( iObserver ) |
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195 { |
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196 iDestroyed = &destroyed; |
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197 TRAP( err, iObserver->MediatorCategoryRemovedL( iCategory.iDomain, |
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198 iCategory.iCategory ) ); |
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199 } |
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200 break; |
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201 } |
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202 default: |
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203 { |
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204 LOG(_L("[Mediator Server]\t Unknown notification\n")); |
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205 break; |
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206 } |
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207 } |
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208 |
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209 |
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210 if ( err != KErrNone ) |
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211 { |
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212 ERROR_TRACE(Print(_L("[Mediator] CMediatorNotificationsBody::RunL: err=%d, iNotificationType=%d\n"), err, |
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213 iNotificationType ) ); |
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214 if ( !destroyed ) |
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215 { |
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216 iDestroyed = NULL; |
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217 } |
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218 |
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219 User::Leave( err ); // leave now, if an observer callback caused an error |
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220 } |
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221 |
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222 if ( !destroyed ) // client may delete instance in observer callback |
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223 { |
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224 iDestroyed = NULL; // set to NULL, because local variable goes out of scope soon |
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225 // Continue receiving notifications |
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226 ReceiveNotificationsL(); |
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227 } |
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228 |
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229 } |
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230 |
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231 // ----------------------------------------------------------------------------- |
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232 // CMediatorNotificationsBody::DoCancel |
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233 // |
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234 // (other items were commented in a header). |
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235 // ----------------------------------------------------------------------------- |
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236 // |
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237 void CMediatorNotificationsBody::DoCancel() |
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238 { |
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239 LOG(_L("[Mediator Server]\t CMediatorNotificationsBody::DoCancel\n")); |
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240 iMediatorServer.Cancel(); |
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241 } |
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242 |
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243 // ----------------------------------------------------------------------------- |
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244 // CMediatorNotificationsBody::RegisterNotificationObserver |
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245 // |
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246 // (other items were commented in a header). |
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247 // ----------------------------------------------------------------------------- |
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248 // |
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249 TInt CMediatorNotificationsBody::RegisterNotificationObserver( |
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250 MMediatorNotifications* aObserver ) |
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251 { |
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252 iObserver = aObserver; |
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253 //return ReceiveNotifications(); |
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254 |
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255 TRAPD ( err, ReceiveNotificationsL() ); |
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256 |
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257 return err; |
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258 } |
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259 |
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260 // ----------------------------------------------------------------------------- |
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261 // CMediatorNotificationsBody::UnregisterNotificationObserver |
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262 // |
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263 // (other items were commented in a header). |
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264 // ----------------------------------------------------------------------------- |
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265 // |
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266 TInt CMediatorNotificationsBody::UnregisterNotificationObserver() |
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267 { |
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268 iObserver = NULL; |
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269 // Empty existing arrays |
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270 if ( iCommandList.Count() > 0 ) |
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271 { |
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272 iCommandList.Reset(); |
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273 } |
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274 if ( iEventList.Count() > 0 ) |
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275 { |
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276 iEventList.Reset(); |
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277 } |
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278 // Cancel the show |
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279 return iMediatorServer.CancelNotifications(); |
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280 } |
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281 |
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282 // ----------------------------------------------------------------------------- |
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283 // CMediatorNotificationsBody::GetDomains |
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284 // Gets a list of registered domains |
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285 // (other items were commented in a header). |
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286 // ----------------------------------------------------------------------------- |
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287 // |
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288 TInt CMediatorNotificationsBody::GetDomains( RDomainList& aDomains ) |
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289 { |
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290 LOG(_L("[Mediator Server]\t CMediatorNotificationsBody::GetDomains\n")); |
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291 return iMediatorServer.GetDomains( aDomains ); |
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292 } |
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293 |
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294 |
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295 // ----------------------------------------------------------------------------- |
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296 // CMediatorNotificationsBody::GetCategories |
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297 // Gets a list of registered domains |
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298 // (other items were commented in a header). |
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299 // ----------------------------------------------------------------------------- |
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300 // |
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301 TInt CMediatorNotificationsBody::GetCategories( TUid aDomain, |
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302 RCategoryList& aCategories ) |
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303 { |
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304 LOG(_L("[Mediator Server]\t CMediatorNotificationsBody::GetCategories\n")); |
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305 return iMediatorServer.GetCategories( aDomain, aCategories ); |
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306 } |
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307 |
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308 // ----------------------------------------------------------------------------- |
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309 // CMediatorNotificationsBody::GetEvents |
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310 // Gets a list of registered events withing the domain/category |
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311 // (other items were commented in a header). |
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312 // ----------------------------------------------------------------------------- |
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313 // |
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314 TInt CMediatorNotificationsBody::GetEvents( TUid aDomain, |
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315 TUid aCategory, |
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316 REventList& aEvents ) |
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317 { |
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318 LOG(_L("[Mediator Server]\t CMediatorNotificationsBody::GetEvents\n")); |
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319 return iMediatorServer.GetEvents( aDomain, aCategory, aEvents ); |
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320 } |
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321 |
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322 // ----------------------------------------------------------------------------- |
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323 // CMediatorNotificationsBody::GetCommands |
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324 // Gets a list of registered commands withing the domain/category |
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325 // (other items were commented in a header). |
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326 // ----------------------------------------------------------------------------- |
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327 // |
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328 TInt CMediatorNotificationsBody::GetCommands( TUid aDomain, |
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329 TUid aCategory, |
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330 RCommandList& aCommands ) |
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331 { |
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332 LOG(_L("[Mediator Server]\t CMediatorNotificationsBody::GetCommands\n")); |
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333 return iMediatorServer.GetCommands( aDomain, aCategory, aCommands ); |
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334 } |
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335 |
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336 |
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337 // ----------------------------------------------------------------------------- |
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338 // CMediatorNotificationsBody::ReceiveNotificationsL |
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339 // |
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340 // (other items were commented in a header). |
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341 // ----------------------------------------------------------------------------- |
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342 // |
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343 |
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344 void CMediatorNotificationsBody::ReceiveNotificationsL() |
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345 { |
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346 LOG(_L("[Mediator Server]\t CMediatorNotificationsBody::ReceiveNotificationsL\n")); |
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347 if ( IsActive() ) |
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348 { |
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349 ERROR_LOG(_L("[Mediator] CMediatorNotificationsBody::ReceiveNotificationsL: User::Leave( KErrAlreadyExists )\n") ); |
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350 User::Leave( KErrAlreadyExists ); |
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351 } |
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352 |
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353 ResizeEventListL( KMediatorDefaultEventCount ); |
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354 |
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355 ResizeCommandListL ( KMediatorDefaultCommandCount ); |
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356 |
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357 // Define data return pointers |
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358 TInt commandArraySize = ( sizeof(MediatorService::TCommand) ) * KMediatorDefaultCommandCount; |
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359 TPtr8 commandArrayPtr( (TUint8*)&iCommandList[0], commandArraySize ); |
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360 iCommandArrayPtr.Set( commandArrayPtr ); |
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361 |
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362 TInt eventArraySize = ( sizeof(MediatorService::TEvent) ) * KMediatorDefaultEventCount; |
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363 TPtr8 eventArrayPtr( (TUint8*)&iEventList[0], eventArraySize ); |
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364 iEventArrayPtr.Set( eventArrayPtr ); |
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365 |
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366 SetActive(); |
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367 |
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368 iMediatorServer.ReceiveNotifications( iStatus, |
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369 iCategoryBuffer, |
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370 iNotificationTypeBuffer, |
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371 iEventArrayPtr, |
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372 iCommandArrayPtr ); |
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373 } |
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374 |
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375 // ----------------------------------------------------------------------------- |
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376 // CMediatorNotificationsBody::ResizeEventListL |
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377 // |
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378 // (other items were commented in a header). |
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379 // ----------------------------------------------------------------------------- |
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380 // |
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381 void CMediatorNotificationsBody::ResizeEventListL( TInt aEventCount ) |
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382 { |
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383 LOG(_L("[Mediator Server]\t CMediatorNotificationsBody::ResizeEventListL\n")); |
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384 if ( iEventList.Count() > aEventCount ) // less events has been received than space allocated |
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385 { |
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386 // suppress list |
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387 for ( TInt i = iEventList.Count() - 1; i >= aEventCount; i-- ) |
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388 { |
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389 iEventList.Remove( i ); |
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390 } |
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391 } |
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392 else if ( iEventList.Count() < aEventCount ) // more events than initially/previously allocated |
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393 { |
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394 // reallocate event list |
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395 iEventList.Reset(); |
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396 |
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397 User::LeaveIfError( iEventList.Reserve( aEventCount ) ); |
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398 |
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399 for ( TInt i = 0; i < aEventCount; i++ ) |
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400 { |
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401 TEvent emptyEvent; |
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402 iEventList.Append( emptyEvent ); |
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403 } |
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404 } |
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405 } |
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406 |
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407 // ----------------------------------------------------------------------------- |
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408 // CMediatorNotificationsBody::ResizeCommandListL |
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409 // |
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410 // (other items were commented in a header). |
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411 // ----------------------------------------------------------------------------- |
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412 // |
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413 void CMediatorNotificationsBody::ResizeCommandListL( TInt aCommandCount ) |
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414 { |
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415 LOG(_L("[Mediator Server]\t CMediatorNotificationsBody::ResizeCommandListL\n")); |
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416 if ( iCommandList.Count() > aCommandCount ) // less commands has been received than space allocated |
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417 { |
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418 // suppress list |
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419 for ( TInt i = iCommandList.Count() - 1; i >= aCommandCount; i-- ) |
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420 { |
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421 iCommandList.Remove( i ); |
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422 } |
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423 } |
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424 else if ( iCommandList.Count() < aCommandCount ) // more commands than initially/previously allocated |
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425 { |
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426 // reallocate command list |
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427 iCommandList.Reset(); |
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428 |
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429 User::LeaveIfError( iCommandList.Reserve( aCommandCount) ); |
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430 |
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431 for ( TInt i = 0; i < aCommandCount; i++ ) |
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432 { |
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433 TCommand emptyCommand; |
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434 iCommandList.Append( emptyCommand ); |
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435 } |
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436 } |
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437 } |
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438 |
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439 // ----------------------------------------------------------------------------- |
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440 // CMediatorNotificationsBody::FetchEventListL |
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441 // |
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442 // (other items were commented in a header). |
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443 // ----------------------------------------------------------------------------- |
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444 // |
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445 void CMediatorNotificationsBody::FetchEventListL() |
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446 { |
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447 LOG(_L("[Mediator Server]\t CMediatorNotificationsBody::FetchEventListL\n")); |
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448 TInt eventArraySize = ( sizeof(MediatorService::TEvent) ) * iEventList.Count(); |
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449 TPtr8 eventArrayPtr( (TUint8*)&iEventList[0], eventArraySize ); |
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450 iEventArrayPtr.Set( eventArrayPtr ); |
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451 User::LeaveIfError( iMediatorServer.FetchNotificationEventList( iEventArrayPtr ) ); |
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452 } |
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453 |
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454 // ----------------------------------------------------------------------------- |
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455 // CMediatorNotificationsBody::FetchCommandListL |
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456 // |
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457 // (other items were commented in a header). |
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458 // ----------------------------------------------------------------------------- |
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459 // |
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460 void CMediatorNotificationsBody::FetchCommandListL() |
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461 { |
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462 LOG(_L("[Mediator Server]\t CMediatorNotificationsBody::FetchCommandListL\n")); |
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463 TInt commandArraySize = ( sizeof(MediatorService::TCommand) ) * iCommandList.Count(); |
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464 TPtr8 commandArrayPtr( (TUint8*)&iCommandList[0], commandArraySize ); |
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465 iCommandArrayPtr.Set( commandArrayPtr ); |
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466 User::LeaveIfError( iMediatorServer.FetchNotificationCommandList( commandArrayPtr ) ); |
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467 } |
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468 |
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469 // ---------------------------------------------------------------------------- |
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470 // CStartupMediatorPluginSubscriber::RunError() |
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471 // ---------------------------------------------------------------------------- |
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472 #ifdef _DEBUG |
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473 TInt CMediatorNotificationsBody::RunError( TInt aError ) |
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474 #else |
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475 TInt CMediatorNotificationsBody::RunError( TInt /*aError*/ ) |
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476 #endif //_DEBUG |
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477 { |
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478 ERROR_TRACE(Print(_L("[Mediator] CMediatorNotificationsBody::RunError: err=%d\n"), aError)); |
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479 |
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480 // Return KErrNone to avoid panic |
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481 return KErrNone; |
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482 } |
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483 |
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484 // End of File |