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1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // This file contains all the code for the retrieval classes which retrieve variable length |
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15 // buffers from the TSY, such as MBMS monitor service list and MBMS sessions. |
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16 // |
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17 // |
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18 |
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19 /** |
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20 @file |
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21 */ |
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22 |
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23 #include "pcktretrieve.h" |
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24 #include <pcktcs.h> |
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25 #include <etelext.h> |
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26 |
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27 // |
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28 // |
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29 // Retrieve a list of MBMS monitored service entries |
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30 // |
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31 // |
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32 EXPORT_C CRetrievePcktMbmsMonitoredServices* CRetrievePcktMbmsMonitoredServices::NewL(RPacketService& aService) |
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33 /** Creates an instance of the CActive derived CRetrievePcktMbmsMonitoredServices |
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34 * class. |
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35 * @param aService An instance of RPacketService over which the list retrieval class operates. |
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36 * @return The newly created CRetrievePcktMbmsMonitoredServices class. |
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37 * @capability None |
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38 */ |
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39 { |
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40 CRetrievePcktMbmsMonitoredServices* self = new(ELeave) CRetrievePcktMbmsMonitoredServices(aService); |
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41 CleanupStack::PushL(self); |
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42 self->ConstructL(); |
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43 CleanupStack::Pop(); |
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44 return self; |
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45 } |
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46 |
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47 CRetrievePcktMbmsMonitoredServices::CRetrievePcktMbmsMonitoredServices(RPacketService& aService) |
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48 : CAsyncRetrieveWithClientIds(aService.SessionHandle().Handle(), aService.SubSessionHandle()), |
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49 iService(aService) |
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50 /** |
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51 * Standard constructor; initialises the data members. |
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52 */ |
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53 { |
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54 } |
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55 |
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56 void CRetrievePcktMbmsMonitoredServices::ConstructL() |
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57 /** |
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58 * Part of 2 phase construction, assigns the IPCs to be used |
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59 * in 2 phase retrieval mechanism. |
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60 */ |
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61 { |
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62 iIpcPhase1=EPacketGetMbmsMonitoredServicesPhase1; |
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63 iIpcPhase2=EPacketGetMbmsMonitoredServicesPhase2; |
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64 iIpcCancel=EPacketGetMbmsMonitoredServicesCancel; |
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65 } |
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66 |
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67 EXPORT_C CRetrievePcktMbmsMonitoredServices::~CRetrievePcktMbmsMonitoredServices() |
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68 /** |
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69 * The destructor frees all resources owned by the object, prior to its destruction. |
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70 */ |
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71 { |
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72 Cancel(); |
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73 delete iResults; |
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74 } |
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75 |
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76 EXPORT_C CPcktMbmsMonitoredServiceList* CRetrievePcktMbmsMonitoredServices::RetrieveListL() |
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77 /** |
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78 * Provides the client with a handle to the appropriate |
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79 * MBMS service availability list class retrieved. The client will call this function |
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80 * once Start() has completed. |
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81 * The ownership of the list object is transferred to the client and the client |
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82 * is responsible for eventual deletion of this object. |
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83 * |
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84 * @leave KErrNotFound If there is no valid list object to return to the client. |
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85 * @return A handle to the list class retrieved from the store. If there are no entries in |
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86 * the list then a handle to an empty list is returned. |
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87 * @capability ReadDeviceData |
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88 */ |
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89 { |
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90 if (iResults) |
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91 { |
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92 // Give ownership of list to caller of this method |
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93 CPcktMbmsMonitoredServiceList* ptr=iResults; |
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94 iResults = NULL; |
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95 return ptr; |
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96 } |
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97 else |
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98 { |
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99 User::Leave(KErrNotFound); |
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100 return NULL; |
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101 } |
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102 } |
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103 |
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104 EXPORT_C void CRetrievePcktMbmsMonitoredServices::Start(TRequestStatus& aReqStatus) |
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105 /** Starts the two-phase list retrieval of all entries within the store. |
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106 * |
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107 * @param aReqStatus On completion, the status of the request; KErrNone if successful, |
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108 * KErrNotSupported if the phone does not support access to an MBMS service availability list |
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109 * and KErrNotFound if the list does not exist. If the list is empty then KErrNone |
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110 * is returned. |
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111 * @capability ReadDeviceData |
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112 */ |
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113 { |
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114 if (!CompleteIfInUse(aReqStatus)) |
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115 { |
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116 delete iResults; |
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117 iResults = NULL; |
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118 CAsyncRetrieveVariableLengthBufferV2::Start(aReqStatus,&iId,&iId); |
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119 } |
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120 } |
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121 |
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122 void CRetrievePcktMbmsMonitoredServices::RestoreListL() |
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123 /** |
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124 * Restores a list from a buffer that contains the streamed version of the list |
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125 */ |
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126 { |
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127 iResults=CPcktMbmsMonitoredServiceList::NewL(); |
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128 iResults->RestoreL(iResultsPtr); |
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129 FreeBuffer(); |
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130 } |
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131 |
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132 void CRetrievePcktMbmsMonitoredServices::CancelReq(TInt aIpc1, TInt aIpc2) |
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133 /** |
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134 * Cancels previously issued request |
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135 */ |
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136 { |
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137 iService.CancelReq(aIpc1, aIpc2); |
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138 } |
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139 |
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140 void CRetrievePcktMbmsMonitoredServices::Get(TInt aIpc, TRequestStatus& aReqStatus, TDes8& aDes1, TDes8& aDes2) |
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141 /** |
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142 * Sends a request through the sub-session this object was created with. |
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143 */ |
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144 { |
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145 iService.Get(aIpc, aReqStatus, aDes1, aDes2); |
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146 } |
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147 |
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148 CAsyncRetrieveWithClientIds::CAsyncRetrieveWithClientIds(TInt aSessionHandle, TInt aSubSessionHandle) |
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149 { |
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150 iId().iSessionHandle = aSessionHandle; |
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151 iId().iSubSessionHandle = aSubSessionHandle; |
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152 } |
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153 |
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154 EXPORT_C CRetrievePcktMbmsSessionList* CRetrievePcktMbmsSessionList::NewL(RPacketMbmsContext& aPcktMbmsContext, RPacketMbmsContext::CMbmsSession& aSessionIdList) |
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155 /** |
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156 * Standard 2 phase constructor. |
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157 * @param aPcktMbmsContext Reference to an open MBMS packet context object. |
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158 * @param aSessionIdList On completion this holds the list of MBMS sessions. |
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159 * @return Pointer instance of the class. |
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160 */ |
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161 { |
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162 return new (ELeave)CRetrievePcktMbmsSessionList(aPcktMbmsContext, aSessionIdList); |
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163 } |
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164 |
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165 EXPORT_C void CRetrievePcktMbmsSessionList::Start(TRequestStatus& aReqStatus) |
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166 /** |
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167 * Starts the 2 phase retrieval. Assigns the IPCs to be used for the 2-phase retrieval mechanism. |
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168 * @param aReqStatus On return, KErrNone if successful. |
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169 * @capability ReadDeviceData |
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170 */ |
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171 { |
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172 if (!CompleteIfInUse(aReqStatus)) |
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173 { |
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174 iIpcPhase1=EPacketGetMbmsSessionListPhase1; |
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175 iIpcPhase2=EPacketGetMbmsSessionListPhase2; |
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176 iIpcCancel=EPacketGetMbmsSessionListCancel; |
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177 CAsyncRetrieveVariableLengthBufferV2::Start(aReqStatus,&iId,&iId); |
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178 } |
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179 } |
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180 void CRetrievePcktMbmsSessionList::Get(TInt aIpc, TRequestStatus& aReqStatus, TDes8& aDes1, TDes8& aDes2) |
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181 /** |
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182 * Issues requested IPC to the ETEL/TSY |
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183 */ |
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184 { |
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185 iPcktMbmsContext.Get(aIpc, aReqStatus, aDes1, aDes2); |
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186 } |
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187 void CRetrievePcktMbmsSessionList::CancelReq(TInt aIpc1, TInt aIpc2) |
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188 /** |
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189 * Cancels previously issued request |
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190 */ |
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191 { |
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192 iPcktMbmsContext.CancelReq(aIpc1,aIpc2); |
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193 } |
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194 void CRetrievePcktMbmsSessionList::RestoreListL() |
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195 /** |
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196 * Overload of base class virtual method; de-serializes data retrieved from TSY to |
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197 * provided data structure. |
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198 */ |
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199 { |
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200 iSessionIdList.InternalizeL(iResultsPtr); |
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201 FreeBuffer(); |
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202 } |
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203 CRetrievePcktMbmsSessionList::CRetrievePcktMbmsSessionList(RPacketMbmsContext& aPcktMbmsContext,RPacketMbmsContext::CMbmsSession& aSessionIdList) |
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204 :iPcktMbmsContext(aPcktMbmsContext),iSessionIdList(aSessionIdList) |
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205 /** |
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206 * Standard constructor; initialises data members and the base class |
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207 */ |
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208 { |
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209 iId().iSessionHandle=iPcktMbmsContext.SessionHandle().Handle(); |
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210 iId().iSubSessionHandle=iPcktMbmsContext.SubSessionHandle(); |
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211 } |
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212 |