|
1 /* |
|
2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: Implementation of CHtiBtCommServerSession class. This class |
|
15 * represents the client session in server. |
|
16 * |
|
17 */ |
|
18 |
|
19 |
|
20 |
|
21 // INCLUDE FILES |
|
22 #include "HtiBtClientServerCommon.h" |
|
23 #include "HtiBtCommServerSession.h" |
|
24 #include "HtiBtCommServer.h" |
|
25 #include "BtSerialClient.h" |
|
26 #include "Logger.h" |
|
27 |
|
28 #include <e32base.h> |
|
29 #include <e32std.h> |
|
30 #include <e32svr.h> |
|
31 |
|
32 #include <HtiCommPluginInterface.h> // KErrComModuleReset; |
|
33 |
|
34 // CONSTANTS |
|
35 _LIT(KBtComSessPanic, "BtComSessAssrt"); |
|
36 |
|
37 const TInt KBtAddressHexStringLength = 12; // 6 bytes |
|
38 const TInt KIncomingDataBufSize = 32 * 1024; |
|
39 |
|
40 //***************************************************************************** |
|
41 // |
|
42 // Class CHtiBtCommServerSession |
|
43 // |
|
44 //***************************************************************************** |
|
45 |
|
46 /*---------------------------------------------------------------------------*/ |
|
47 CHtiBtCommServerSession::CHtiBtCommServerSession( CHtiBtCommServer* aServer ) |
|
48 : CSession2() |
|
49 { |
|
50 LOGFW(DebugLog(_L("CHtiBtCommServerSession: CHtiBtCommServerSession()"))) |
|
51 |
|
52 __DECLARE_NAME( _S( "CHtiBtCommServerSession" ) ); |
|
53 iBtCommServer = aServer; |
|
54 iReadRequestComplete = ETrue; // ready to accept read request |
|
55 iWriteRequestComplete = ETrue; |
|
56 iConnectRequestComplete = ETrue; |
|
57 iBtCommServer->SessionCreated(this); |
|
58 } |
|
59 |
|
60 /*---------------------------------------------------------------------------*/ |
|
61 CHtiBtCommServerSession* CHtiBtCommServerSession::NewL( |
|
62 CHtiBtCommServer* aServer ) |
|
63 { |
|
64 LOGFW(DebugLog(_L("CHtiBtCommServerSession: NewL()"))) |
|
65 CHtiBtCommServerSession* session = |
|
66 new (ELeave) CHtiBtCommServerSession( aServer ); |
|
67 CleanupStack::PushL( session ); |
|
68 session->ConstructL(); |
|
69 CleanupStack::Pop( session ); |
|
70 return session; |
|
71 } |
|
72 |
|
73 /*---------------------------------------------------------------------------*/ |
|
74 |
|
75 void CHtiBtCommServerSession::ConstructL() |
|
76 { |
|
77 LOGFW(DebugLog(_L("CHtiBtCommServerSession: ConstructL()"))) |
|
78 iBtClient = CBtSerialClient::NewL(*this); |
|
79 iIncomingDataBuf = HBufC8::NewL(KIncomingDataBufSize); |
|
80 LOGFW(DebugLog(_L("CHtiBtCommServerSession: ConstructL(): Done"))) |
|
81 } |
|
82 |
|
83 /*---------------------------------------------------------------------------*/ |
|
84 CHtiBtCommServerSession::~CHtiBtCommServerSession() |
|
85 { |
|
86 LOGFW(DebugLog(_L("CHtiBtCommServerSession: ~CHtiBtCommServerSession()"))) |
|
87 delete iBtClient; |
|
88 ResetAll(KErrCancel); |
|
89 delete iIncomingDataBuf; |
|
90 if ( iBtCommServer ) |
|
91 { |
|
92 iBtCommServer->SessionFreed(); |
|
93 } |
|
94 LOGFW(DebugLog(_L("CHtiBtCommServerSession: ~CHtiBtCommServerSession(): Done"))) |
|
95 } |
|
96 |
|
97 /*---------------------------------------------------------------------------*/ |
|
98 void CHtiBtCommServerSession::ServiceL( const RMessage2& aMessage ) |
|
99 { |
|
100 LOGFW(DebugLog(_L("CHtiBtCommServerSession: ServiceL()"))) |
|
101 |
|
102 TRAPD( error, DispatchMessageL( aMessage ) ); |
|
103 if ( error != KErrNone ) |
|
104 { |
|
105 LOGFW(DebugLog(_L("CHtiBtCommServerSession::ServiceL error %d"), error);) |
|
106 } |
|
107 LOGFW(DebugLog(_L("CHtiBtCommServerSession: ServiceL(): Done"))) |
|
108 } |
|
109 |
|
110 |
|
111 /*---------------------------------------------------------------------------*/ |
|
112 void CHtiBtCommServerSession::DispatchMessageL( const RMessage2 &aMessage ) |
|
113 { |
|
114 LOGFW( DebugLog( _L( "CHtiBtCommServerSession: DispatchMessageL()" ) ) ) |
|
115 |
|
116 switch ( aMessage.Function() ) |
|
117 { |
|
118 case EBtCommServerConnect: |
|
119 { |
|
120 HandleConnectRequestL( aMessage ); |
|
121 } |
|
122 break; |
|
123 |
|
124 case EBtCommServerSend: |
|
125 { |
|
126 HandleSendRequestL( aMessage ); |
|
127 } |
|
128 break; |
|
129 case EBtCommServerRecv: |
|
130 { |
|
131 HandleReadRequestL( aMessage ); |
|
132 } |
|
133 break; |
|
134 |
|
135 case ECancelBtCommServerRecv: |
|
136 case ECancelBtCommServerSend: |
|
137 { |
|
138 HandleCancelRequestL( aMessage ); |
|
139 } |
|
140 break; |
|
141 |
|
142 case EGetServicePortNumber: |
|
143 { |
|
144 HandlePortNumberRequestL( aMessage ); |
|
145 } |
|
146 break; |
|
147 |
|
148 default: |
|
149 { |
|
150 LOGFW(ErrLog(_L("CHtiBtCommServerSession::DispatchMessageL: Unknown request: %d. Panicing Client"), aMessage.Function());) |
|
151 PanicClient( EBadRequest ); |
|
152 User::Panic( KBtComSessPanic, 1 ); |
|
153 } |
|
154 break; |
|
155 } |
|
156 LOGFW(DebugLog(_L("CHtiBtCommServerSession: DispatchMessageL(): Done"))) |
|
157 } |
|
158 |
|
159 /*---------------------------------------------------------------------------*/ |
|
160 void CHtiBtCommServerSession::HandleConnectRequestL( const RMessage2& aMessage ) |
|
161 { |
|
162 LOGFW(DebugLog(_L("CHtiBtCommServer:HandleConnectRequestL()"))) |
|
163 if ( !iConnectRequestComplete ) |
|
164 { |
|
165 LOGFW(DebugLog(_L("CHtiBtCommServer:HandleConnectRequestL(): Already connecting"))) |
|
166 aMessage.Complete( KErrNotReady ); |
|
167 } |
|
168 else |
|
169 { |
|
170 if ( iBtClient->Connected() ) |
|
171 { |
|
172 LOGFW(DebugLog(_L("CHtiBtCommServer:HandleConnectRequestL(): Already connected"))) |
|
173 aMessage.Complete( KErrNone ); // Already connected. This is not an error? |
|
174 } |
|
175 else |
|
176 { |
|
177 LOGFW(DebugLog(_L("CHtiBtCommServer:HandleConnectRequestL(): Starting to connect to remote host"))) |
|
178 iConnectRequest = aMessage; |
|
179 iConnectRequestComplete = EFalse; |
|
180 |
|
181 TInt dataLength = (TUint16)aMessage.GetDesLength( 0 ); //first message slot |
|
182 LOGFW(DebugLog(_L("CHtiBtCommServer:HandleConnectRequestL(): Data length = %d"), dataLength)); |
|
183 |
|
184 TInt port = aMessage.Int1(); |
|
185 LOGFW(DebugLog(_L("CHtiBtCommServer:HandleConnectRequestL(): Port = %d"), port)); |
|
186 |
|
187 if ( dataLength < 1 ) |
|
188 { |
|
189 LOGFW(DebugLog(_L("CHtiBtCommServer:HandleConnectRequestL(): No address or name - need to ask device"))) |
|
190 iBtClient->ConnectL(); // Request is completed in ConnectedToServer |
|
191 } |
|
192 else if ( dataLength == KBtAddressHexStringLength ) |
|
193 { |
|
194 TBuf8<KBtAddressHexStringLength> addressBuf8; |
|
195 aMessage.ReadL( 0, addressBuf8 ); |
|
196 TBuf<KBtAddressHexStringLength> addressBuf; |
|
197 addressBuf.Copy( addressBuf8 ); |
|
198 TBTDevAddr address; |
|
199 TInt result = address.SetReadable( addressBuf ); |
|
200 LOGFW(DebugLog(_L("CHtiBtCommServer:HandleConnectRequestL(): SetReadable result = %d"), result)); |
|
201 if ( result != KBtAddressHexStringLength ) |
|
202 { |
|
203 LOGFW(DebugLog(_L("CHtiBtCommServer:HandleConnectRequestL(): Not valid address - use it as name"))) |
|
204 iBtClient->ConnectL( addressBuf, port ); |
|
205 } |
|
206 else |
|
207 { |
|
208 LOGFW(DebugLog(_L("CHtiBtCommServer:HandleConnectRequestL(): Valid address - connect"))) |
|
209 iBtClient->ConnectL( address, port ); |
|
210 } |
|
211 } |
|
212 else |
|
213 { |
|
214 LOGFW(DebugLog(_L("CHtiBtCommServer:HandleConnectRequestL(): Using name to connect"))) |
|
215 TBTDeviceName8 deviceName8; |
|
216 aMessage.ReadL( 0, deviceName8 ); |
|
217 TBTDeviceName deviceName; |
|
218 deviceName.Copy( deviceName8 ); |
|
219 iBtClient->ConnectL( deviceName, port ); |
|
220 } |
|
221 } |
|
222 } |
|
223 LOGFW(DebugLog(_L("CHtiBtCommServer:HandleConnectRequestL(): Done"))) |
|
224 } |
|
225 |
|
226 /*---------------------------------------------------------------------------*/ |
|
227 void CHtiBtCommServerSession::HandleReadRequestL( const RMessage2& aMessage ) |
|
228 { |
|
229 LOGFW(DebugLog(_L("CHtiBtCommServerSession: HandleReadRequestL()"))) |
|
230 |
|
231 if ( !iReadRequestComplete ) |
|
232 { |
|
233 LOGFW(WarnLog(_L("CHtiBtCommServerSession: HandleReadRequestL(): Pending request. ret=KErrNotReady"))) |
|
234 // Two simultaneous read requests are not allowed. |
|
235 aMessage.Complete(KErrNotReady); |
|
236 return; |
|
237 } |
|
238 |
|
239 // No data in read buffer. Must wait for new data before completing request |
|
240 iReadRequest = aMessage; |
|
241 iReadRequestComplete = EFalse; // Not ready to complete next request |
|
242 TryCompleteReadRequest(); // if there is something in the readbuffer, |
|
243 // use it for completion. |
|
244 |
|
245 if ( iIncomingDataBuf->Des().Length() == 0 ) |
|
246 { |
|
247 // Read some bytes to buffer even before client's request. |
|
248 iBtClient->ReadAsyncL(); // Issue async request to read more data. |
|
249 } |
|
250 |
|
251 LOGFW(DebugLog(_L("CHtiBtCommServerSession: HandleReadRequestL(): Done"))) |
|
252 } |
|
253 |
|
254 /*---------------------------------------------------------------------------*/ |
|
255 void CHtiBtCommServerSession::HandleSendRequestL( const RMessage2& aMessage ) |
|
256 { |
|
257 LOGFW(DebugLog(_L("CHtiBtCommServerSession: HandleSendRequestL()"))) |
|
258 |
|
259 TInt dataLength = (TUint16)aMessage.GetDesLength( 0 ); //first message slot |
|
260 LOGFW( InfoLog( _L( "Framework requested to send data: %d bytes" ), dataLength ) ) |
|
261 if ( iBtClient->SendBufferMaxSize() < dataLength ) |
|
262 { |
|
263 aMessage.Complete(KErrOverflow); |
|
264 LOGFW(ErrLog(_L("CHtiBtCommServerSession: HandleSendRequestL(): client is giving too big data. Cannot handle."))) |
|
265 } |
|
266 else if ( !iWriteRequestComplete ) |
|
267 { |
|
268 LOGFW(WarnLog(_L("CHtiBtCommServerSession: HandleSendRequestL(): Pending request. ret=KErrNotReady"))) |
|
269 // Already pending send request. Two simultaneous send requests not allowed. |
|
270 aMessage.Complete( KErrNotReady ); |
|
271 } |
|
272 else |
|
273 { |
|
274 if ( iBtClient->FreeSpaceInSendBuffer() < dataLength ) |
|
275 { |
|
276 LOGFW(DebugLog(_L("CHtiBtCommServerSession: HandleSendRequestL(): Completing send request delayed"))) |
|
277 // No space in the iBtClient's send buffer. Copy the data to internal |
|
278 // buffer and wait for iBtClient to send its data out before adding |
|
279 // data to its send buffer. |
|
280 delete iSendBuffer; |
|
281 iSendBuffer = NULL; |
|
282 iSendBuffer = HBufC8::NewL(dataLength); |
|
283 TPtr8 ptr = iSendBuffer->Des(); |
|
284 aMessage.ReadL( 0, ptr ); |
|
285 iWriteRequestComplete = EFalse; |
|
286 iWriteRequest = aMessage; |
|
287 // Wait for callback call AllBufferedDataSent. Complete request there. |
|
288 } |
|
289 else |
|
290 { |
|
291 LOGFW(DebugLog(_L("CHtiBtCommServerSession: HandleSendRequestL(): Completing send request immediately"))) |
|
292 // All data can be sent immediately, because there is enough space in |
|
293 // iBtClient's send buffer. |
|
294 HBufC8* data = HBufC8::NewLC( dataLength ); |
|
295 TPtr8 ptr = data->Des(); |
|
296 aMessage.ReadL( 0, ptr ); |
|
297 iBtClient->SendL( ptr ); |
|
298 CleanupStack::PopAndDestroy( data ); |
|
299 aMessage.Complete( KErrNone ); |
|
300 } |
|
301 } |
|
302 LOGFW(DebugLog(_L("CHtiBtCommServerSession: HandleSendRequestL(): Done"))) |
|
303 } |
|
304 |
|
305 /*---------------------------------------------------------------------------*/ |
|
306 void CHtiBtCommServerSession::HandleCancelRequestL( const RMessage2& aMessage ) |
|
307 { |
|
308 ResetAll( KErrCancel ); |
|
309 aMessage.Complete( KErrNone ); |
|
310 } |
|
311 |
|
312 /*---------------------------------------------------------------------------*/ |
|
313 void CHtiBtCommServerSession::HandlePortNumberRequestL(const RMessage2& aMessage) |
|
314 { |
|
315 TPckgBuf<TInt> p( iBtClient->ServicePort() ); |
|
316 TInt err = aMessage.Write( 0, p, 0 ); |
|
317 aMessage.Complete( err ); |
|
318 } |
|
319 |
|
320 /*---------------------------------------------------------------------------*/ |
|
321 |
|
322 void CHtiBtCommServerSession::PanicClient(TInt aPanic) const |
|
323 { |
|
324 LOGFW(DebugLog(_L("CHtiBtCommServerSession: PanicClient(): %d"), aPanic)) |
|
325 LOGFW(WarnLog(_L("CHtiBtCommServerSession: PanicClient(): %d. NOT IMPLEMENTED"), aPanic)) |
|
326 aPanic = aPanic; |
|
327 // should be done with RMessage2? |
|
328 } |
|
329 |
|
330 /*---------------------------------------------------------------------------*/ |
|
331 void CHtiBtCommServerSession::ResetAll(TInt aCompletionCode) |
|
332 { |
|
333 LOGFW(DebugLog(_L("CHtiBtCommServerSession: ResetAll()"))) |
|
334 if ( !iWriteRequestComplete ) |
|
335 iWriteRequest.Complete( aCompletionCode ); |
|
336 if ( !iReadRequestComplete ) |
|
337 iReadRequest.Complete( aCompletionCode ); |
|
338 if ( !iConnectRequestComplete ) |
|
339 iConnectRequest.Complete( aCompletionCode ); // error when making connection |
|
340 iWriteRequestComplete = ETrue; |
|
341 iReadRequestComplete = ETrue; |
|
342 iConnectRequestComplete = ETrue; |
|
343 delete iIncomingDataBuf; |
|
344 iIncomingDataBuf = NULL; |
|
345 delete iSendBuffer; |
|
346 iSendBuffer = NULL; |
|
347 iIncomingDataBuf = HBufC8::New(KIncomingDataBufSize); |
|
348 LOGFW(DebugLog(_L("CHtiBtCommServerSession: ResetAll(): Done"))) |
|
349 } |
|
350 |
|
351 /*---------------------------------------------------------------------------*/ |
|
352 void CHtiBtCommServerSession::ConnectedToServer(TInt aError) |
|
353 { |
|
354 // Connected to server. Reading has been started. |
|
355 LOGFW(InfoLog(_L("CHtiBtCommServerSession: ConnectedToServer: connected to remote host"))) |
|
356 iConnectRequestComplete = ETrue; |
|
357 iConnectRequest.Complete( aError ); |
|
358 } |
|
359 |
|
360 /*---------------------------------------------------------------------------*/ |
|
361 void CHtiBtCommServerSession::DisconnectedFromServer() |
|
362 { |
|
363 LOGFW(InfoLog(_L("CHtiBtCommServerSession: DisconnectedFromServer: disconnected from remote host"))) |
|
364 ResetAll( KErrDisconnected ); |
|
365 } |
|
366 |
|
367 /*---------------------------------------------------------------------------*/ |
|
368 void CHtiBtCommServerSession::DataFromServer(const TDesC8& aData) |
|
369 { |
|
370 LOGFW(DebugLog(_L("CHtiBtCommServerSession: DataFromServer: %d bytes"), aData.Length())) |
|
371 TPtr8 ptr = iIncomingDataBuf->Des(); |
|
372 if ( aData.Length() > ptr.MaxLength() - ptr.Length() ) |
|
373 PanicClient( KErrUnderflow ); // Client is reading too slowly |
|
374 |
|
375 ptr.Append( aData ); |
|
376 TryCompleteReadRequest(); |
|
377 LOGFW(DebugLog(_L("CHtiBtCommServerSession: DataFromServer: done"), aData.Length())) |
|
378 } |
|
379 |
|
380 /*---------------------------------------------------------------------------*/ |
|
381 void CHtiBtCommServerSession::AllBufferedDataSent() |
|
382 { |
|
383 LOGFW(DebugLog(_L("CHtiBtCommServerSession: AllBufferedDataSent"))) |
|
384 if ( !iWriteRequestComplete ) |
|
385 { |
|
386 // iBtClient has sent all of its data and is ready to send more. |
|
387 TPtr8 ptr = iSendBuffer->Des(); |
|
388 TRAPD( err, iBtClient->SendL( ptr ); ) |
|
389 iWriteRequest.Complete( err ); |
|
390 iWriteRequestComplete = ETrue; |
|
391 delete iSendBuffer; |
|
392 iSendBuffer = NULL; |
|
393 } |
|
394 LOGFW(DebugLog(_L("CHtiBtCommServerSession: AllBufferedDataSent: Done"))) |
|
395 } |
|
396 |
|
397 /*---------------------------------------------------------------------------*/ |
|
398 void CHtiBtCommServerSession::TryCompleteReadRequest() |
|
399 { |
|
400 LOGFW(DebugLog(_L("CHtiBtCommServerSession: TryCompleteReadRequest"))) |
|
401 TPtr8 ptr = iIncomingDataBuf->Des(); |
|
402 |
|
403 if ( iReadRequestComplete || ptr.Length() == 0 ) |
|
404 { |
|
405 LOGFW(DebugLog(_L("CHtiBtCommServerSession: TryCompleteReadRequest: Nothing to complete"))) |
|
406 return; // No outstanding client request to complete |
|
407 } |
|
408 |
|
409 TInt dataMaxLength = (TUint16)iReadRequest.GetDesMaxLength(0); //first message slot |
|
410 TPtrC8 dataToClient = ptr.Left(dataMaxLength); |
|
411 TRAPD(err, iReadRequest.WriteL(0, dataToClient);) |
|
412 |
|
413 ptr.Delete(0, dataToClient.Length()); |
|
414 iReadRequest.Complete(err); |
|
415 iReadRequestComplete = ETrue; |
|
416 LOGFW(DebugLog(_L("CHtiBtCommServerSession: TryCompleteReadRequest: Done"))) |
|
417 } |
|
418 |
|
419 // End of file |