|
1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
2 // All rights reserved. |
|
3 // This component and the accompanying materials are made available |
|
4 // under the terms of "Eclipse Public License v1.0" |
|
5 // which accompanies this distribution, and is available |
|
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
7 // |
|
8 // Initial Contributors: |
|
9 // Nokia Corporation - initial contribution. |
|
10 // |
|
11 // Contributors: |
|
12 // |
|
13 // Description: |
|
14 // |
|
15 |
|
16 #include "app_protintf_tcp.h" |
|
17 #include <in_sock.h> |
|
18 #include "app_protintf_msgs.h" |
|
19 const TInt KListenQSize = 5; |
|
20 |
|
21 using namespace Messages; |
|
22 |
|
23 CApplicationProtocolIntfBase* CApplicationProtocolIntfTcp::NewL ( TInt aPort ) |
|
24 { |
|
25 CApplicationProtocolIntfTcp* self = new (ELeave)CApplicationProtocolIntfTcp( aPort ); |
|
26 return self; |
|
27 } |
|
28 |
|
29 CApplicationProtocolIntfTcp::CApplicationProtocolIntfTcp ( TInt aPort ) |
|
30 : CApplicationProtocolIntfBase ( aPort, KProtocolInetTcp ),iAcceptedSocketHandler (*this) |
|
31 { |
|
32 LOG_NODE_CREATE ( KESockFlowTag, CApplicationProtocolIntfTcp ); |
|
33 } |
|
34 |
|
35 CApplicationProtocolIntfTcp::~CApplicationProtocolIntfTcp () |
|
36 { |
|
37 Shutdown(); |
|
38 LOG_NODE_DESTROY(KESockFlowTag, CApplicationProtocolIntfTcp); |
|
39 } |
|
40 |
|
41 void CApplicationProtocolIntfTcp::ReceivedL ( const TRuntimeCtxId& aSender, const TNodeId& aRecipient, TSignatureBase& aMessage ) |
|
42 { |
|
43 __ASSERT_DEBUG ( aMessage.MessageId ().Realm () == TAppProtIntfMessage::ERealmId, User::Panic ( KAppProtIntfInvalidRealmId, KInvalidReamId ) ); |
|
44 |
|
45 CApplicationProtocolIntfBase::ReceivedL ( aSender, aRecipient, aMessage ); |
|
46 switch ( aMessage.MessageId ().MessageId () ) |
|
47 { |
|
48 case TAppProtIntfMessage::TJoin::EId: |
|
49 { |
|
50 InitiateLinkL ( address_cast<TNodeCtxId> ( aSender ), KSockStream, KProtocolInetTcp ); |
|
51 } |
|
52 break; |
|
53 |
|
54 case TAppProtIntfMessage::TAcceptConnection::EId: |
|
55 { |
|
56 // Transfer the connection |
|
57 TAppProtIntfMessage::TTransferConnection msg ( iAcceptedSocket, iReceivedData ); |
|
58 PostToLink ( address_cast<TNodeCtxId> ( aSender ), msg ); |
|
59 |
|
60 RInternalSocket sock; |
|
61 iAcceptedSocket = sock; // Empty the accepted socket, as ownership is transferred |
|
62 iReceivedData.Init (); // Empty the received data |
|
63 DoAccept (); |
|
64 __ASSERT_DEBUG ( iReceivedData.IsEmpty(), User::Invariant() ); |
|
65 } |
|
66 break; |
|
67 |
|
68 case TAppProtIntfMessage::TRejectConnection::EId: |
|
69 { |
|
70 // Note: If there is a rejection e should send the data to next links till last, one by one. |
|
71 // Currently we have only one link. Noone is there to accept this connection. So close the accepted socket |
|
72 // and keep in accept modefor new connections |
|
73 |
|
74 // The link should sent rejected data. If the rejected data is sent and we don't have any more links |
|
75 // we will send the rejected data and go into an accepting mode. |
|
76 // If there is no rejected data we will close the accepted socket && directly go into an accepting mode |
|
77 |
|
78 // For example: In the case of HTTP the link will send an internal error 500 or not found 400 response |
|
79 |
|
80 TAppProtIntfMessage::TRejectConnection& msg = message_cast < TAppProtIntfMessage::TRejectConnection > ( aMessage ); |
|
81 iReceivedData.Free (); |
|
82 if ( msg.iData.Length() > 0 ) |
|
83 { |
|
84 iAcceptedSocketHandler.Send ( msg.iData ); |
|
85 } |
|
86 else |
|
87 { |
|
88 iAcceptedSocket.Close(); |
|
89 DoAccept (); |
|
90 } |
|
91 } |
|
92 break; |
|
93 |
|
94 case TAppProtIntfMessage::TMoreData::EId: |
|
95 { |
|
96 iReceivedData.Init(); |
|
97 iAcceptedSocketHandler.Recv(); |
|
98 break; |
|
99 } |
|
100 } |
|
101 } |
|
102 |
|
103 void CApplicationProtocolIntfTcp::DoAccept () |
|
104 { |
|
105 iSocketHandler.Accept(); |
|
106 } |
|
107 |
|
108 TInt CApplicationProtocolIntfTcp::Startup () |
|
109 { |
|
110 // Start listening and accepting for new connections |
|
111 TInt err = iSocket.Listen( KListenQSize ); |
|
112 if ( err == KErrNone ) |
|
113 DoAccept (); |
|
114 return err; |
|
115 } |
|
116 |
|
117 void CApplicationProtocolIntfTcp::Shutdown () |
|
118 { |
|
119 iAcceptedSocketHandler.CancelAll (); |
|
120 iAcceptedSocket.Close (); |
|
121 CApplicationProtocolIntfBase::Shutdown (); |
|
122 } |
|
123 |
|
124 void CApplicationProtocolIntfTcp::AcceptComplete ( RInternalSocket& aSocket ) |
|
125 { |
|
126 iAcceptedSocket = aSocket; |
|
127 iAcceptedSocketHandler.Attach ( aSocket ); |
|
128 |
|
129 iAcceptedSocketHandler.Recv(); // Start receiving the data |
|
130 } |
|
131 |
|
132 void CApplicationProtocolIntfTcp::RecvComplete ( RMBufChain& aData ) |
|
133 { |
|
134 // Post the data to the link. We should do this one by one. But for the timebeing we |
|
135 // are keeping it simple. ie; one link is attached with us. |
|
136 __ASSERT_DEBUG ( iLinks.Count() > 0, User::Invariant() ); |
|
137 |
|
138 if ( iLinks[0].Flags() != TClientType::ELeaving ) |
|
139 { |
|
140 iReceivedData.Append ( aData ); |
|
141 |
|
142 TAppProtIntfMessage::TNewConnection msg ( iReceivedData ); |
|
143 PostToLink ( iLinks[0], msg ); |
|
144 } |
|
145 else |
|
146 { |
|
147 iAcceptedSocket.Close (); |
|
148 aData.Free (); |
|
149 } |
|
150 } |
|
151 |
|
152 void CApplicationProtocolIntfTcp::SendComplete ( TInt /* aLength */ ) |
|
153 { |
|
154 // we will send data only for the accepted socket. Send complete means, we don't have anyone to accept |
|
155 // our connection and typically a error response ( protocol dependent ) will be send to the client and |
|
156 // we will close the connection. |
|
157 // Send completed. Close the accepted socket and move into an accepting mode |
|
158 iAcceptedSocket.Close (); |
|
159 DoAccept (); |
|
160 } |
|
161 |
|
162 void CApplicationProtocolIntfTcp::Error ( TOperation aOperation, TInt aError ) |
|
163 { |
|
164 // If we have a recv/send failure we should handle it here. otherwise allow the base class to handle the error |
|
165 if ( ( aOperation == SockHandler::ERecv ) || ( aOperation == SockHandler::EMBufSend ) ) |
|
166 { |
|
167 DoAccept (); |
|
168 return; |
|
169 } |
|
170 CApplicationProtocolIntfBase::Error ( aOperation, aError ); |
|
171 } |