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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 // ceventhandler.cpp |
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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 @internalComponent |
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20 */ |
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21 |
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22 #include "cptpipeventhandler.h" |
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23 #include "tptpipinitevtack.h" |
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24 #include "ptpippanic.h" |
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25 |
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26 __FLOG_STMT(_LIT8(KComponent,"CEventHandler");) |
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27 |
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28 /** |
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29 Creates the channel for commands. The base class constructl is called. |
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30 */ |
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31 CPTPIPEventHandler* CPTPIPEventHandler::NewL(CPTPIPConnection& aConnection) |
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32 { |
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33 |
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34 CPTPIPEventHandler* self = new(ELeave) CPTPIPEventHandler(aConnection); |
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35 CleanupStack::PushL(self); |
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36 #ifdef __FLOG_ACTIVE |
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37 self->ConstructL(KComponent); |
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38 #else |
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39 self->ConstructL(); |
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40 #endif |
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41 CleanupStack::Pop(); |
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42 return self; |
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43 } |
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44 |
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45 /** |
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46 Destructor |
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47 */ |
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48 CPTPIPEventHandler::~CPTPIPEventHandler() |
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49 { |
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50 __FLOG(_L8("Destructor - Entry")); |
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51 __FLOG(_L8("Destructor - Exit")); |
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52 } |
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53 |
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54 /** |
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55 Constructor |
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56 */ |
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57 CPTPIPEventHandler::CPTPIPEventHandler(CPTPIPConnection& aConnection): |
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58 CPTPIPSocketHandlerBase(aConnection, CActive::EPriorityUserInput ) |
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59 { |
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60 } |
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61 |
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62 /** |
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63 Sends the init ack packet, which is created in the connection class. |
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64 @param aEvtAck The packet containing the event acknowledgement to be sent to initiator. |
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65 */ |
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66 void CPTPIPEventHandler::SendInitAck(CPTPIPGenericContainer* aEvtAck) |
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67 { |
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68 __FLOG(_L8("SendInitAck - Entry")); |
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69 iChunkStatus = aEvtAck->FirstReadChunk(iSendChunkData); |
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70 iSendData.Set(iSendChunkData); |
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71 iSocket.Send(iSendData,0,iStatus); |
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72 SetState(EInitSendInProgress); |
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73 SetActive(); |
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74 __FLOG(_L8("SendInitAck - Exit")); |
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75 } |
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76 |
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77 /** |
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78 Initiates the sending of the event data over the event channel. The base class |
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79 implements the handling of the socket to send the actual data. |
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80 @param aData The buffer containing the event which is created by the framework to send to the initiator |
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81 */ |
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82 void CPTPIPEventHandler::SendEventL(const MMTPType& aEvent) |
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83 { |
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84 __FLOG(_L8("SendEventL - Entry")); |
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85 |
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86 // We need to stop listening, and send the event. |
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87 Cancel(); |
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88 |
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89 SendDataL(aEvent, 0); |
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90 __FLOG(_L8("SendEventL - Exit")); |
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91 } |
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92 |
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93 /** |
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94 Signals the completion of sending data over the socket, which was started by |
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95 SendEventL. It is called by the base sockethandler and in turn informs the |
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96 connection. |
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97 @param aError - The error if any returned by the sockethandler. (KErrNone if no errors) |
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98 @param aSource - The event buffer which had been given by the framework to send to initiator. |
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99 */ |
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100 void CPTPIPEventHandler::SendDataCompleteL(TInt aError, const MMTPType& aSource) |
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101 { |
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102 __FLOG(_L8("SendDataCompleteL - Entry")); |
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103 Connection().SendEventCompleteL(aError, aSource); |
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104 __FLOG(_L8("SendDataCompleteL - Exit")); |
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105 } |
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106 |
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107 /** |
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108 Initiates the receiving of the event data on the event channel. |
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109 @param aEvent The buffer containing the event received from the initiator |
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110 */ |
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111 void CPTPIPEventHandler::ReceiveEventL(MMTPType& aEvent) |
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112 { |
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113 __FLOG(_L8("ReceiveEventL - Entry")); |
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114 ReceiveDataL(aEvent); |
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115 __FLOG(_L8("ReceiveEventL - Exit")); |
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116 } |
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117 |
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118 /** |
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119 Marks the completion of receiving data over the event channel, which was started |
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120 by ReceiveEventL. It is called by the base sockethandler and in turn informs the |
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121 connection. |
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122 @param aError - The error if any returned by the sockethandler. (KErrNone if no errors) |
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123 @param aSink - The event buffer in which an event has been received from the initiator |
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124 */ |
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125 void CPTPIPEventHandler::ReceiveDataCompleteL(TInt aError, MMTPType& aSink) |
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126 { |
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127 __FLOG(_L8("ReceiveDataCompleteL - Entry")); |
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128 Connection().ReceiveEventCompleteL(aError, aSink); |
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129 __FLOG(_L8("ReceiveDataCompleteL - Exit")); |
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130 } |
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131 |
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132 /** |
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133 Parses the PTPIP header, gets and validates that the packet type is correct |
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134 and sets the value of the packet length. |
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135 @return Type The PTPIP packet type received ie event or cancel. In case of invalid type, it returns 0 |
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136 */ |
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137 TInt CPTPIPEventHandler::ParsePTPIPHeaderL() |
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138 { |
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139 __FLOG(_L8("ParsePTPIPHeaderL - Entry")); |
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140 |
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141 TUint32 type = Connection().ValidateAndSetEventPayloadL(); |
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142 iPTPPacketLength = Connection().EventContainer()->Uint32L(CPTPIPGenericContainer::EPacketLength); |
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143 |
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144 __FLOG(_L8("ParsePTPIPHeaderL - Exit")); |
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145 return type; |
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146 } |
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147 |
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148 /** |
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149 Called during the PTP connection establishment phase to mark the completion |
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150 of sending the init ack to the initiator |
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151 @return Flag stating that the ini has been sent successfully. |
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152 */ |
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153 TBool CPTPIPEventHandler::HandleInitAck() |
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154 { |
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155 __FLOG(_L8("HandleInitAck - Entry")); |
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156 TBool isHandled(EFalse); |
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157 |
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158 if (iState == EInitSendInProgress) |
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159 { |
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160 //Now signal the connection, set its state and set it to active. |
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161 Connection().SetConnectionState(CPTPIPConnection::EInitialisationComplete); |
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162 Connection().CompleteSelf(iStatus.Int()); |
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163 iState = EIdle; |
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164 isHandled = ETrue; |
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165 } |
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166 __FLOG(_L8("HandleInitAck - Exit")); |
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167 return isHandled; |
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168 } |
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169 |
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170 |
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171 |
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172 |
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173 |
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174 |