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1 // Copyright (c) 2006-2009 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 // Definition of network request channel component. |
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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 @file |
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20 @internalTechnology |
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21 @released |
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22 */ |
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23 |
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24 #include <e32base.h> |
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25 #include <e32debug.h> |
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26 #include <lbs/lbslocerrors.h> |
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27 #include "lbsdevloggermacros.h" |
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28 #include "lbsprocessuiddefs.h" |
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29 #include "netrequestchannel.h" |
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30 #include "lbsnrhngmsgs.h" |
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31 |
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32 |
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33 // |
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34 // CNetworkRequestChannel |
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35 // |
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36 |
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37 const TLbsNetSessionIdInt KInvalidSessionId(TUid::Uid(0xDC0DED), 999); |
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38 const TLbsNetPosRequestQualityInt KInvalidQuality; |
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39 const TLbsNetPosRequestMethodInt KInvalidMethod; |
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40 const TLbsNetPosRequestPrivacyInt KInvalidRequestPrivacy; |
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41 const TLbsExternalRequestInfo KInvalidExternalRequestInfo; |
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42 const TInt KEmergencyBufMaxCount = 2; |
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43 |
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44 CNetworkRequestChannel::CNetworkRequestChannel(MNetworkRequestObserver& aObserver) : |
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45 CActive(EPriorityStandard), |
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46 iObserver(aObserver), |
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47 iEmergencyLocationRequestMsg(KInvalidSessionId, EFalse, |
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48 TLbsNetworkEnumInt::EServiceNone, |
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49 KInvalidQuality, KInvalidMethod), |
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50 iEmergencyPrivacyRequestMsg(KInvalidSessionId, EFalse, |
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51 KInvalidRequestPrivacy, |
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52 KInvalidExternalRequestInfo) |
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53 { |
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54 } |
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55 |
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56 CNetworkRequestChannel::~CNetworkRequestChannel() |
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57 { |
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58 Cancel(); |
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59 iNetRequestChannel.Close(); |
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60 iEmergencyBuffer.Reset(); |
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61 delete iMsgBuffer; |
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62 } |
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63 |
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64 CNetworkRequestChannel* CNetworkRequestChannel::NewL(MNetworkRequestObserver& aObserver) |
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65 { |
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66 CNetworkRequestChannel* self = new (ELeave) CNetworkRequestChannel(aObserver); |
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67 CleanupStack::PushL(self); |
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68 self->ConstructL(); |
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69 CleanupStack::Pop(self); |
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70 return self; |
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71 } |
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72 |
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73 void CNetworkRequestChannel::ConstructL() |
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74 { |
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75 iMsgBuffer = CRequestMessageBuffer::NewL(); |
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76 iEmergencyBuffer.ReserveL(KEmergencyBufMaxCount); |
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77 |
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78 iNetRequestChannel.OpenL(RLbsNetChannel::EChannelNG2NRH, *this); |
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79 CActiveScheduler::Add(this); |
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80 } |
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81 |
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82 void CNetworkRequestChannel::RunL() |
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83 { |
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84 User::LeaveIfError(iStatus.Int()); |
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85 |
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86 if (iEmergencyBuffer.Count() > 0) // If there is a pending emergency request send this first |
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87 { |
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88 SendMessageAndNotifyForResponse(*(iEmergencyBuffer[0])); |
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89 RemoveEmergencyMessage(iEmergencyBuffer[0]); |
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90 } |
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91 else |
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92 { |
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93 // If there is a pending message in the buffer, pass it on to the NRH |
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94 SendNextBufferedMessage(); |
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95 } |
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96 } |
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97 |
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98 void CNetworkRequestChannel::DoCancel() |
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99 { |
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100 iNetRequestChannel.CancelSendMessageNotification(); |
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101 } |
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102 |
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103 TInt CNetworkRequestChannel::RunError(TInt aError) |
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104 { |
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105 return aError; |
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106 } |
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107 |
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108 void CNetworkRequestChannel::SendNetRequestMessage(const TLbsNetInternalMsgBase& aMessage) |
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109 { |
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110 LBSLOG(ELogP1, "CNetworkRequestChannel::SendNetRequestMessage:"); |
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111 TBool emergency = EFalse; |
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112 |
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113 if (!IsActive()) |
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114 { |
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115 // Immediately send the new message. |
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116 SendMessageAndNotifyForResponse(aMessage); |
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117 } |
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118 else // First see if this is an emergency request |
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119 { |
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120 if(aMessage.Type() == TLbsNetInternalMsgBase::ELocationRequest) |
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121 { |
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122 if((static_cast<const TLbsNetLocationRequestMsg*>(&aMessage))->IsEmergency()) |
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123 { |
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124 iEmergencyLocationRequestMsg = static_cast<const TLbsNetLocationRequestMsg&>(aMessage); |
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125 iEmergencyBuffer.Append(&iEmergencyLocationRequestMsg); |
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126 emergency = ETrue; |
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127 } |
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128 } |
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129 else if(aMessage.Type() == TLbsNetInternalMsgBase::EPrivacyRequest) |
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130 { |
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131 if( (static_cast<const TLbsNetMtLrRequestMsg*>(&aMessage))->IsEmergency() ) |
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132 { |
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133 iEmergencyPrivacyRequestMsg = static_cast<const TLbsNetMtLrRequestMsg&>(aMessage); |
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134 iEmergencyBuffer.Append(&iEmergencyPrivacyRequestMsg); |
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135 emergency = ETrue; |
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136 } |
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137 } |
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138 |
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139 if(!emergency) // If it is an emergency then handle in RunL |
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140 { |
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141 // Still waiting for acknowledgement that a previous message |
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142 // was read, so buffer this new message. |
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143 TInt err = iMsgBuffer->BufferMessage(aMessage); |
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144 if (err != KErrNone) |
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145 { |
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146 LBSLOG(ELogP1, "BUFFERING MESSAGE FAILED!!"); |
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147 } |
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148 } |
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149 } |
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150 } |
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151 |
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152 void CNetworkRequestChannel::ProcessNetChannelMessage(RLbsNetChannel::TLbsNetChannelId aChannelId, const TLbsNetInternalMsgBase& aMessage) |
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153 { |
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154 LBSLOG(ELogP1, "CNetworkRequestChannel::ProcessNetChannelMessage"); |
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155 __ASSERT_DEBUG(aChannelId == RLbsNetChannel::EChannelNG2NRH, User::Panic(KLbsNGFault, ENGUnexpectedNetChannelId)); |
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156 (void) aChannelId; |
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157 iObserver.ProcessNetRequestMessage(aMessage); |
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158 } |
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159 |
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160 void CNetworkRequestChannel::SendMessageAndNotifyForResponse(const TLbsNetInternalMsgBase& aMessage) |
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161 { |
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162 LBSLOG(ELogP1, "CNetworkRequestChannel::SendMessage:"); |
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163 LBSLOG2(ELogP2, "Sending message : Type %d", aMessage.Type()); |
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164 |
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165 iNetRequestChannel.SendMessage(aMessage, iStatus); |
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166 SetActive(); |
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167 } |
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168 |
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169 void CNetworkRequestChannel::SendNextBufferedMessage() |
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170 { |
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171 LBSLOG(ELogP1, "CNetworkRequestChannel::SendNextBufferedMessage:"); |
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172 |
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173 const TLbsNetInternalMsgBase* msg = iMsgBuffer->PeekNextMessage(); |
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174 if (msg != NULL) |
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175 { |
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176 // Send the oldest buffered message. This will always |
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177 // be the one at position zero. |
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178 LBSLOG2(ELogP2, "Sending buffered message. Type: %d", msg->Type()); |
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179 SendMessageAndNotifyForResponse(*msg); |
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180 iMsgBuffer->RemoveMessage(msg); |
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181 } |
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182 } |
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183 |
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184 void CNetworkRequestChannel::RemoveEmergencyMessage( |
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185 const TLbsNetInternalMsgBase* aMessage) |
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186 { |
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187 TInt index = iEmergencyBuffer.Find(aMessage, iMsgBuffer->IsMsgEqual); |
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188 if (index != KErrNotFound) |
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189 { |
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190 iEmergencyBuffer.Remove(index); |
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191 } |
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192 } |
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193 |