|
0
|
1 |
// Copyright (c) 2002-2009 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 the License "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 |
// f32\sfile\sf_request.cpp
|
|
|
15 |
//
|
|
|
16 |
//
|
|
|
17 |
|
|
|
18 |
#include "sf_std.h"
|
|
|
19 |
#include "sf_file_cache.h"
|
|
|
20 |
#ifdef SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION
|
|
|
21 |
#include "sf_notifier.h"
|
|
|
22 |
#endif //SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION
|
|
|
23 |
|
|
|
24 |
|
|
|
25 |
TParse dummyP;
|
|
|
26 |
RMessage2 dummyM;
|
|
|
27 |
|
|
|
28 |
CFsClientMessageRequest* RequestAllocator::iFreeHead;
|
|
|
29 |
CFsClientMessageRequest* RequestAllocator::iCloseHead;
|
|
|
30 |
TInt RequestAllocator::iAllocNum;
|
|
|
31 |
TInt RequestAllocator::iAllocNumOperation;
|
|
|
32 |
TMsgOperation* RequestAllocator::iFreeHeadSupOp;
|
|
|
33 |
|
|
|
34 |
#if defined(_USE_CONTROLIO) || defined(_DEBUG) || defined(_DEBUG_RELEASE)
|
|
|
35 |
TInt RequestAllocator::iAllocated;
|
|
|
36 |
#endif
|
|
|
37 |
RFastLock RequestAllocator::iCacheLock;
|
|
|
38 |
|
|
|
39 |
void RequestAllocator::Initialise()
|
|
|
40 |
{
|
|
|
41 |
iFreeHead=NULL;
|
|
|
42 |
iCloseHead=NULL;
|
|
|
43 |
iAllocNum=0;
|
|
|
44 |
#if defined(_USE_CONTROLIO) || defined(_DEBUG) || defined(_DEBUG_RELEASE)
|
|
|
45 |
iAllocated=0;
|
|
|
46 |
#endif
|
|
|
47 |
iAllocNumOperation=0;
|
|
|
48 |
iFreeHeadSupOp=NULL;
|
|
|
49 |
}
|
|
|
50 |
|
|
|
51 |
TInt RequestAllocator::AllocRequest(TInt aNum)
|
|
|
52 |
//
|
|
|
53 |
// Allocates a group of request objects
|
|
|
54 |
//
|
|
|
55 |
{
|
|
|
56 |
TInt i;
|
|
|
57 |
if(iAllocNum < KMaxRequestAllocated)
|
|
|
58 |
{
|
|
|
59 |
__CACHE_PRINT(_L("RequestAllocator::AllocRequest() Not reached the limit"));
|
|
|
60 |
CFsClientMessageRequest* list;
|
|
|
61 |
CFsClientMessageRequest* start;
|
|
|
62 |
list = new CFsClientMessageRequest[KAllocReqBlock];
|
|
|
63 |
start = list;
|
|
|
64 |
if(!list)
|
|
|
65 |
return KErrNoMemory;
|
|
|
66 |
|
|
|
67 |
// Make sure the constructors are called for every element in the array
|
|
|
68 |
// - some compilers don't do this
|
|
|
69 |
for(TInt j=0; j<KAllocReqBlock; j++)
|
|
|
70 |
{
|
|
|
71 |
CFsClientMessageRequest* request = &list[j];
|
|
|
72 |
new(request) CFsClientMessageRequest();
|
|
|
73 |
}
|
|
|
74 |
|
|
|
75 |
iAllocNum += KAllocReqBlock;
|
|
|
76 |
CFsClientMessageRequest* last;
|
|
|
77 |
for(i=1;i<KAllocReqBlock;i++)
|
|
|
78 |
{
|
|
|
79 |
last = list;
|
|
|
80 |
list++;
|
|
|
81 |
last->iNext = list;
|
|
|
82 |
}
|
|
|
83 |
list->iNext = iFreeHead;
|
|
|
84 |
iFreeHead = start;
|
|
|
85 |
return KErrNone;
|
|
|
86 |
}
|
|
|
87 |
else
|
|
|
88 |
{
|
|
|
89 |
__CACHE_PRINT1(_L("RequestAllocator::AllocRequest() Limit exceeded Count = %d"),aNum);
|
|
|
90 |
CFsClientMessageRequest* request;
|
|
|
91 |
for(i=0;i<aNum;i++)
|
|
|
92 |
{
|
|
|
93 |
request=new CFsClientMessageRequest;
|
|
|
94 |
if(!request)
|
|
|
95 |
return KErrNoMemory;
|
|
|
96 |
#if defined(_USE_CONTROLIO) || defined(_DEBUG) || defined(_DEBUG_RELEASE)
|
|
|
97 |
iAllocated++;
|
|
|
98 |
#endif
|
|
|
99 |
request->SetAllocated();
|
|
|
100 |
request->iNext=iFreeHead;
|
|
|
101 |
iFreeHead=request;
|
|
|
102 |
}
|
|
|
103 |
return KErrNone;
|
|
|
104 |
}
|
|
|
105 |
}
|
|
|
106 |
|
|
|
107 |
void RequestAllocator::FreeRequest(CFsClientMessageRequest* aRequest)
|
|
|
108 |
//
|
|
|
109 |
//free request
|
|
|
110 |
//
|
|
|
111 |
{
|
|
|
112 |
__CACHE_PRINT1(_L("PLUGIN: RequestAllocator::FreeRequest for %x"), aRequest);
|
|
|
113 |
if(aRequest->IsAllocated())
|
|
|
114 |
{
|
|
|
115 |
__CACHE_PRINT(_L("RequestAllocator::FreeRequest() Allocated request"));
|
|
|
116 |
delete(aRequest);
|
|
|
117 |
#if defined(_USE_CONTROLIO) || defined(_DEBUG) || defined(_DEBUG_RELEASE)
|
|
|
118 |
iAllocated--;
|
|
|
119 |
#endif
|
|
|
120 |
return;
|
|
|
121 |
}
|
|
|
122 |
|
|
|
123 |
__CACHE_PRINT(_L("RequestAllocator::FreeRequest() returning to free list"));
|
|
|
124 |
iCacheLock.Wait();
|
|
|
125 |
aRequest->iNext = iFreeHead;
|
|
|
126 |
iFreeHead=aRequest;
|
|
|
127 |
aRequest->SetSubstedDrive(NULL);
|
|
|
128 |
iCacheLock.Signal();
|
|
|
129 |
}
|
|
|
130 |
|
|
|
131 |
void RequestAllocator::OpenSubFailed(CSessionFs* aSession)
|
|
|
132 |
//
|
|
|
133 |
// Move requst from closed list to free list
|
|
|
134 |
//
|
|
|
135 |
{
|
|
|
136 |
__ASSERT_DEBUG(iCloseHead!=NULL,Fault(ERequestAllocatorOpenSubFailed)); // On arriving here Close Queue is supposed to be empty
|
|
|
137 |
__ASSERT_ALWAYS(aSession!=NULL,Fault(ERequestAllocatorOpenSubFailed));
|
|
|
138 |
if (iCloseHead==NULL)
|
|
|
139 |
{
|
|
|
140 |
return;
|
|
|
141 |
}
|
|
|
142 |
iCacheLock.Wait();
|
|
|
143 |
CFsClientMessageRequest* rp = iCloseHead;
|
|
|
144 |
iCloseHead = rp->iNext;
|
|
|
145 |
|
|
|
146 |
// dec the number of closed requests owned by this session
|
|
|
147 |
aSession->CloseRequestCountDec();
|
|
|
148 |
|
|
|
149 |
rp->iNext = NULL;
|
|
|
150 |
if(rp->IsAllocated())
|
|
|
151 |
{
|
|
|
152 |
__CACHE_PRINT(_L("RequestAllocator::OpenSubFailed() Allocated request"));
|
|
|
153 |
delete(rp);
|
|
|
154 |
#if defined(_USE_CONTROLIO) || defined(_DEBUG) || defined(_DEBUG_RELEASE)
|
|
|
155 |
iAllocated--;
|
|
|
156 |
#endif
|
|
|
157 |
}
|
|
|
158 |
else
|
|
|
159 |
{
|
|
|
160 |
__CACHE_PRINT(_L("RequestAllocator::OpenSubFailed()"));
|
|
|
161 |
if(iFreeHead)
|
|
|
162 |
{
|
|
|
163 |
rp->iNext = iFreeHead;
|
|
|
164 |
}
|
|
|
165 |
else
|
|
|
166 |
{
|
|
|
167 |
rp->iNext = NULL;
|
|
|
168 |
}
|
|
|
169 |
|
|
|
170 |
iFreeHead = rp;
|
|
|
171 |
}
|
|
|
172 |
iCacheLock.Signal();
|
|
|
173 |
}
|
|
|
174 |
|
|
|
175 |
TInt RequestAllocator::GetMessageRequest(const TOperation& aOperation,const RMessage2& aMessage,CFsClientMessageRequest* &aRequest)
|
|
|
176 |
//
|
|
|
177 |
// tries to get a pre allocated message from the cache. Failing that allocates one indivisualy
|
|
|
178 |
//
|
|
|
179 |
{
|
|
|
180 |
if(aOperation.IsOpenSubSess())
|
|
|
181 |
{
|
|
|
182 |
__CACHE_PRINT(_L("++RequestAllocator::GetMessageRequest() Open sub-sess"));
|
|
|
183 |
iCacheLock.Wait();
|
|
|
184 |
if(iFreeHead == NULL || iFreeHead->iNext == NULL)
|
|
|
185 |
{
|
|
|
186 |
if(AllocRequest(2)!= KErrNone)
|
|
|
187 |
{
|
|
|
188 |
iCacheLock.Signal();
|
|
|
189 |
return KErrNoMemory;
|
|
|
190 |
}
|
|
|
191 |
}
|
|
|
192 |
aRequest= iFreeHead; //get our request from free head
|
|
|
193 |
iFreeHead = iFreeHead->iNext->iNext; //set next but one as new free head read for next
|
|
|
194 |
|
|
|
195 |
aRequest->iNext->iNext = NULL; //seperate our request and close from free list
|
|
|
196 |
CFsClientMessageRequest* CRp = aRequest->iNext;
|
|
|
197 |
aRequest->iNext = NULL;
|
|
|
198 |
if(iCloseHead)
|
|
|
199 |
{
|
|
|
200 |
CRp->iNext = iCloseHead; //set second one as a reserved (tail) close request
|
|
|
201 |
iCloseHead = CRp;
|
|
|
202 |
}
|
|
|
203 |
else
|
|
|
204 |
iCloseHead = CRp;
|
|
|
205 |
|
|
|
206 |
((CSessionFs*) aMessage.Session())->CloseRequestCountInc();
|
|
|
207 |
}
|
|
|
208 |
else if(aOperation.IsCloseSubSess())
|
|
|
209 |
{
|
|
|
210 |
__CACHE_PRINT(_L("++RequestAllocator::GetMessageRequest() Close sub-sess"));
|
|
|
211 |
|
|
|
212 |
CFsObject* pO = SessionObjectFromHandle(aMessage.Int3(),0,reinterpret_cast<CSessionFs*>(aMessage.Session()));
|
|
|
213 |
if(!pO)
|
|
|
214 |
return KErrBadHandle;
|
|
|
215 |
|
|
|
216 |
CObjPromotion* pm = (CObjPromotion*)pO;
|
|
|
217 |
TInt function = aMessage.Function();
|
|
|
218 |
switch(function & KIpcFunctionMask)
|
|
|
219 |
{
|
|
|
220 |
case EFsFormatSubClose:
|
|
|
221 |
{
|
|
|
222 |
if(pm->UniqueID() != Formats->UniqueID())
|
|
|
223 |
{
|
|
|
224 |
return KErrBadHandle;
|
|
|
225 |
}
|
|
|
226 |
break;
|
|
|
227 |
}
|
|
|
228 |
case EFsDirSubClose:
|
|
|
229 |
{
|
|
|
230 |
if(pm->UniqueID() != Dirs->UniqueID())
|
|
|
231 |
{
|
|
|
232 |
return KErrBadHandle;
|
|
|
233 |
}
|
|
|
234 |
break;
|
|
|
235 |
}
|
|
|
236 |
case EFsFileSubClose:
|
|
|
237 |
{
|
|
|
238 |
if(pm->UniqueID() != FileShares->UniqueID())
|
|
|
239 |
{
|
|
|
240 |
return KErrBadHandle;
|
|
|
241 |
}
|
|
|
242 |
break;
|
|
|
243 |
}
|
|
|
244 |
case EFsRawSubClose:
|
|
|
245 |
{
|
|
|
246 |
if(pm->UniqueID() != RawDisks->UniqueID())
|
|
|
247 |
{
|
|
|
248 |
return KErrBadHandle;
|
|
|
249 |
}
|
|
|
250 |
break;
|
|
|
251 |
}
|
|
|
252 |
case EFsPluginSubClose:
|
|
|
253 |
{
|
|
|
254 |
if(pm->UniqueID() != FsPluginManager::iPluginConns->UniqueID())
|
|
|
255 |
{
|
|
|
256 |
return KErrBadHandle;
|
|
|
257 |
}
|
|
|
258 |
break;
|
|
|
259 |
}
|
|
|
260 |
#ifdef SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION
|
|
|
261 |
case EFsNotificationSubClose:
|
|
|
262 |
{
|
|
|
263 |
if(pm->UniqueID() != FsNotificationManager::iNotifyRequests->UniqueID())
|
|
|
264 |
{
|
|
|
265 |
return KErrBadHandle;
|
|
|
266 |
}
|
|
|
267 |
break;
|
|
|
268 |
}
|
|
|
269 |
#endif //SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION
|
|
|
270 |
default:
|
|
|
271 |
Fault(ECloseSubBadMessage);
|
|
|
272 |
}
|
|
|
273 |
|
|
|
274 |
iCacheLock.Wait();
|
|
|
275 |
aRequest = iCloseHead;
|
|
|
276 |
iCloseHead = aRequest->iNext;
|
|
|
277 |
((CSessionFs*) aMessage.Session())->CloseRequestCountDec();
|
|
|
278 |
aRequest->iNext = NULL;
|
|
|
279 |
|
|
|
280 |
if((function & KIpcFunctionMask)!= EFsPluginSubClose &&
|
|
|
281 |
(function & KIpcFunctionMask)!= EFsNotificationSubClose)
|
|
|
282 |
{
|
|
|
283 |
aRequest->SetDrive(&TheDrives[((CFsDispatchObject*)pO)->DriveNumber()]);
|
|
|
284 |
}
|
|
|
285 |
|
|
|
286 |
aRequest->SetScratchValue((TUint)pO);
|
|
|
287 |
}
|
|
|
288 |
else
|
|
|
289 |
{
|
|
|
290 |
__CACHE_PRINT(_L("++RequestAllocator::GetMessageRequest() "));
|
|
|
291 |
iCacheLock.Wait();
|
|
|
292 |
if(!iFreeHead)
|
|
|
293 |
{
|
|
|
294 |
if(AllocRequest(1) != KErrNone)
|
|
|
295 |
{
|
|
|
296 |
iCacheLock.Signal();
|
|
|
297 |
return KErrNoMemory;
|
|
|
298 |
}
|
|
|
299 |
}
|
|
|
300 |
aRequest = iFreeHead;
|
|
|
301 |
iFreeHead = aRequest->iNext;
|
|
|
302 |
aRequest->iNext= NULL;
|
|
|
303 |
}
|
|
|
304 |
|
|
|
305 |
aRequest->Init();
|
|
|
306 |
|
|
|
307 |
iCacheLock.Signal();
|
|
|
308 |
|
|
|
309 |
// pre-allocate any TParse objects needed by this request
|
|
|
310 |
if (aRequest->AllocParseObjects(aOperation) != KErrNone)
|
|
|
311 |
{
|
|
|
312 |
aRequest->Free();
|
|
|
313 |
return KErrNoMemory;
|
|
|
314 |
}
|
|
|
315 |
|
|
|
316 |
__CACHE_PRINT1(_L("--RequestAllocator::GetMessageRequest() allocated %08x"), aRequest);
|
|
|
317 |
|
|
|
318 |
return KErrNone;
|
|
|
319 |
}
|
|
|
320 |
|
|
|
321 |
|
|
|
322 |
#if defined(_USE_CONTROLIO) || defined(_DEBUG) || defined(_DEBUG_RELEASE)
|
|
|
323 |
TInt RequestAllocator::CloseCount()
|
|
|
324 |
{TInt count=0;
|
|
|
325 |
CFsClientMessageRequest* list=iCloseHead;
|
|
|
326 |
while(list!=NULL)
|
|
|
327 |
{
|
|
|
328 |
count++;
|
|
|
329 |
list=list->iNext;
|
|
|
330 |
}
|
|
|
331 |
return(count);
|
|
|
332 |
}
|
|
|
333 |
TInt RequestAllocator::FreeCount()
|
|
|
334 |
{
|
|
|
335 |
TInt count=0;
|
|
|
336 |
CFsClientMessageRequest* list=iFreeHead;
|
|
|
337 |
while(list!=NULL)
|
|
|
338 |
{
|
|
|
339 |
count++;
|
|
|
340 |
list=list->iNext;
|
|
|
341 |
}
|
|
|
342 |
return(count);}
|
|
|
343 |
#endif
|
|
|
344 |
|
|
|
345 |
TInt RequestAllocator::AllocOperation()
|
|
|
346 |
//
|
|
|
347 |
// Allocates a group of TMsgOperation objects
|
|
|
348 |
//
|
|
|
349 |
// Must be called with iCacheLock held
|
|
|
350 |
{
|
|
|
351 |
TInt i;
|
|
|
352 |
if(iAllocNumOperation < KMaxOperationAllocated)
|
|
|
353 |
{
|
|
|
354 |
__CACHE_PRINT(_L("RequestAllocator::AllocOperation() Not reached the limit"));
|
|
|
355 |
TMsgOperation* list;
|
|
|
356 |
TMsgOperation* start;
|
|
|
357 |
list = new TMsgOperation[KAllocReqBlock];
|
|
|
358 |
start = list;
|
|
|
359 |
if(!list)
|
|
|
360 |
return KErrNoMemory;
|
|
|
361 |
|
|
|
362 |
for(TInt j=0; j<KAllocReqBlock; j++)
|
|
|
363 |
{
|
|
|
364 |
TMsgOperation* request = &list[j];
|
|
|
365 |
request->iIsAllocated = EFalse;
|
|
|
366 |
}
|
|
|
367 |
|
|
|
368 |
iAllocNumOperation += KAllocReqBlock;
|
|
|
369 |
TMsgOperation* last;
|
|
|
370 |
for(i=1;i<KAllocReqBlock;i++)
|
|
|
371 |
{
|
|
|
372 |
last = list;
|
|
|
373 |
list++;
|
|
|
374 |
last->iNext = list;
|
|
|
375 |
}
|
|
|
376 |
list->iNext = iFreeHeadSupOp;
|
|
|
377 |
iFreeHeadSupOp = start;
|
|
|
378 |
return KErrNone;
|
|
|
379 |
}
|
|
|
380 |
else
|
|
|
381 |
{
|
|
|
382 |
__CACHE_PRINT(_L("RequestAllocator::AllocOperation() Limit exceeded"));
|
|
|
383 |
TMsgOperation* request;
|
|
|
384 |
|
|
|
385 |
request=new TMsgOperation;
|
|
|
386 |
if(!request)
|
|
|
387 |
return KErrNoMemory;
|
|
|
388 |
#if defined(_USE_CONTROLIO) || defined(_DEBUG) || defined(_DEBUG_RELEASE)
|
|
|
389 |
iAllocated++;
|
|
|
390 |
#endif
|
|
|
391 |
request->iIsAllocated = ETrue;
|
|
|
392 |
request->iNext=iFreeHeadSupOp;
|
|
|
393 |
iFreeHeadSupOp=request;
|
|
|
394 |
|
|
|
395 |
return KErrNone;
|
|
|
396 |
}
|
|
|
397 |
}
|
|
|
398 |
TInt RequestAllocator::GetOperation(TMsgOperation* &aOperation)
|
|
|
399 |
//
|
|
|
400 |
// tries to get a pre allocated subop from the cache. Failing that allocates one individualy
|
|
|
401 |
//
|
|
|
402 |
{
|
|
|
403 |
|
|
|
404 |
__CACHE_PRINT(_L("RequestAllocator::GetOperation() "));
|
|
|
405 |
iCacheLock.Wait();
|
|
|
406 |
if(!iFreeHeadSupOp)
|
|
|
407 |
{
|
|
|
408 |
if(AllocOperation() != KErrNone)
|
|
|
409 |
{
|
|
|
410 |
iCacheLock.Signal();
|
|
|
411 |
return KErrNoMemory;
|
|
|
412 |
}
|
|
|
413 |
}
|
|
|
414 |
aOperation = iFreeHeadSupOp;
|
|
|
415 |
iFreeHeadSupOp = aOperation->iNext;
|
|
|
416 |
aOperation->iNext = aOperation->iPrev = NULL;
|
|
|
417 |
|
|
|
418 |
iCacheLock.Signal();
|
|
|
419 |
return KErrNone;
|
|
|
420 |
}
|
|
|
421 |
|
|
|
422 |
void RequestAllocator::FreeOperation(TMsgOperation* aOperation)
|
|
|
423 |
//
|
|
|
424 |
// free Operation
|
|
|
425 |
//
|
|
|
426 |
{
|
|
|
427 |
if(aOperation->iIsAllocated)
|
|
|
428 |
{
|
|
|
429 |
__CACHE_PRINT(_L("RequestAllocator::FreeOperation() Allocated subop"));
|
|
|
430 |
delete(aOperation);
|
|
|
431 |
#if defined(_USE_CONTROLIO) || defined(_DEBUG) || defined(_DEBUG_RELEASE)
|
|
|
432 |
iAllocated--;
|
|
|
433 |
#endif
|
|
|
434 |
return;
|
|
|
435 |
}
|
|
|
436 |
|
|
|
437 |
__CACHE_PRINT(_L("RequestAllocator::FreeOperation() returning to free list"));
|
|
|
438 |
iCacheLock.Wait();
|
|
|
439 |
aOperation->iNext = iFreeHeadSupOp; // NB backward link only used when request in in use
|
|
|
440 |
iFreeHeadSupOp = aOperation;
|
|
|
441 |
|
|
|
442 |
iCacheLock.Signal();
|
|
|
443 |
}
|
|
|
444 |
|
|
|
445 |
|
|
|
446 |
CFsRequest::CFsRequest()
|
|
|
447 |
//
|
|
|
448 |
//
|
|
|
449 |
//
|
|
|
450 |
: iOperation(NULL),iDriveNumber(KDriveInvalid)
|
|
|
451 |
{}
|
|
|
452 |
|
|
|
453 |
CFsRequest::~CFsRequest()
|
|
|
454 |
//
|
|
|
455 |
//
|
|
|
456 |
//
|
|
|
457 |
{}
|
|
|
458 |
|
|
|
459 |
void CFsRequest::Set(const TOperation& aOperation,CSessionFs* aSession)
|
|
|
460 |
//
|
|
|
461 |
//
|
|
|
462 |
//
|
|
|
463 |
{
|
|
|
464 |
|
|
|
465 |
SetState(EReqStateInitialise);
|
|
|
466 |
|
|
|
467 |
iOperation = const_cast<TOperation*>(&aOperation);
|
|
|
468 |
iSession = aSession;
|
|
|
469 |
iIsCompleted = aOperation.IsCompleted();
|
|
|
470 |
iError = KErrNone;
|
|
|
471 |
iDriveNumber = KDriveInvalid;
|
|
|
472 |
iCurrentPlugin = NULL;
|
|
|
473 |
iOwnerPlugin = NULL;
|
|
|
474 |
iDirectToDrive = EFalse;
|
|
|
475 |
iClientThreadId= 0;
|
|
|
476 |
iFlags &= ~(EFreeChanged | EPostInterceptEnabled | EPostOperation | EFsObjectOpen);
|
|
|
477 |
iScratchValue = 0;
|
|
|
478 |
}
|
|
|
479 |
|
|
|
480 |
void CFsRequest::Set(CSessionFs* aSession)
|
|
|
481 |
//
|
|
|
482 |
//
|
|
|
483 |
//
|
|
|
484 |
{
|
|
|
485 |
__ASSERT_DEBUG(iOperation,Fault(EBaseRequestSet1));
|
|
|
486 |
|
|
|
487 |
SetState(EReqStateInitialise);
|
|
|
488 |
|
|
|
489 |
iSession = aSession;
|
|
|
490 |
iIsCompleted = iOperation->IsCompleted();
|
|
|
491 |
iError = KErrNone;
|
|
|
492 |
iDriveNumber = KDriveInvalid;
|
|
|
493 |
iCurrentPlugin = NULL;
|
|
|
494 |
iOwnerPlugin = NULL;
|
|
|
495 |
iDirectToDrive = EFalse;
|
|
|
496 |
iClientThreadId= 0;
|
|
|
497 |
iFlags &= ~(EFreeChanged | EPostInterceptEnabled | EPostOperation | EFsObjectOpen);
|
|
|
498 |
iScratchValue = 0;
|
|
|
499 |
}
|
|
|
500 |
|
|
|
501 |
|
|
|
502 |
TParse& CFsRequest::Src()
|
|
|
503 |
//
|
|
|
504 |
//
|
|
|
505 |
//
|
|
|
506 |
{
|
|
|
507 |
Fault(EBaseRequestSrc);
|
|
|
508 |
return(dummyP);
|
|
|
509 |
}
|
|
|
510 |
|
|
|
511 |
TParse& CFsRequest::Dest()
|
|
|
512 |
//
|
|
|
513 |
//
|
|
|
514 |
//
|
|
|
515 |
{
|
|
|
516 |
Fault(EBaseRequestDest);
|
|
|
517 |
return(dummyP);
|
|
|
518 |
}
|
|
|
519 |
|
|
|
520 |
TDrive* CFsRequest::Drive()
|
|
|
521 |
//
|
|
|
522 |
//
|
|
|
523 |
//
|
|
|
524 |
{
|
|
|
525 |
Fault(EBaseRequestDrive);
|
|
|
526 |
return(NULL);
|
|
|
527 |
}
|
|
|
528 |
|
|
|
529 |
TDrive* CFsRequest::SubstedDrive()
|
|
|
530 |
//
|
|
|
531 |
//
|
|
|
532 |
//
|
|
|
533 |
{
|
|
|
534 |
Fault(EBaseRequestSubstedDrive);
|
|
|
535 |
return(NULL);
|
|
|
536 |
}
|
|
|
537 |
|
|
|
538 |
void CFsRequest::SetDrive(TDrive* /*aDrive*/)
|
|
|
539 |
//
|
|
|
540 |
//
|
|
|
541 |
//
|
|
|
542 |
{
|
|
|
543 |
Fault(EBaseRequestSetDrive);
|
|
|
544 |
}
|
|
|
545 |
|
|
|
546 |
void CFsRequest::SetSubstedDrive(TDrive* /*aDrive*/)
|
|
|
547 |
//
|
|
|
548 |
//
|
|
|
549 |
//
|
|
|
550 |
{
|
|
|
551 |
Fault(EBaseRequestSetSubstedDrive);
|
|
|
552 |
}
|
|
|
553 |
|
|
|
554 |
TInt CFsRequest::GetSlot(TFsPluginRequest::TF32ArgType aType)
|
|
|
555 |
{
|
|
|
556 |
if(iOperation->Arg(0) == aType) return 0;
|
|
|
557 |
if(iOperation->Arg(1) == aType) return 1;
|
|
|
558 |
if(iOperation->Arg(2) == aType) return 2;
|
|
|
559 |
if(iOperation->Arg(3) == aType) return 3;
|
|
|
560 |
|
|
|
561 |
return(-1);
|
|
|
562 |
}
|
|
|
563 |
|
|
|
564 |
|
|
|
565 |
TBool CFsMessageRequest::IsNotifierSpecific() const
|
|
|
566 |
{
|
|
|
567 |
#ifndef SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION
|
|
|
568 |
return EFalse;
|
|
|
569 |
#else
|
|
|
570 |
TInt function = iOperation->iFunction;
|
|
|
571 |
return( function == EFsNotificationAdd ||
|
|
|
572 |
function == EFsNotificationBuffer ||
|
|
|
573 |
function == EFsNotificationCancel ||
|
|
|
574 |
function == EFsNotificationOpen ||
|
|
|
575 |
function == EFsNotificationRemove ||
|
|
|
576 |
function == EFsNotificationRequest ||
|
|
|
577 |
function == EFsNotificationSubClose);
|
|
|
578 |
#endif //SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION
|
|
|
579 |
}
|
|
|
580 |
|
|
|
581 |
|
|
|
582 |
TBool CFsMessageRequest::IsNotifierSupported() const
|
|
|
583 |
{
|
|
|
584 |
#ifndef SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION
|
|
|
585 |
return EFalse;
|
|
|
586 |
#else
|
|
|
587 |
TInt function = iOperation->iFunction;
|
|
|
588 |
return( function == EFsDelete ||
|
|
|
589 |
function == EFsRmDir ||
|
|
|
590 |
function == EFsMkDir ||
|
|
|
591 |
function == EFsFormatNext ||
|
|
|
592 |
function == EFsFileCreate ||
|
|
|
593 |
function == EFsFileReplace ||
|
|
|
594 |
function == EFsFileRename ||
|
|
|
595 |
function == EFsRename ||
|
|
|
596 |
function == EFsReplace ||
|
|
|
597 |
function == EFsSetDriveName ||
|
|
|
598 |
function == EFsSetVolume ||
|
|
|
599 |
function == EFsSetEntry ||
|
|
|
600 |
function == EFsFileSetAtt ||
|
|
|
601 |
function == EFsFileSet ||
|
|
|
602 |
function == EFsMountFileSystem ||
|
|
|
603 |
function == EFsDismountFileSystem ||
|
|
|
604 |
function == EFsFileSetSize ||
|
|
|
605 |
function == EFsFileWrite ||
|
|
|
606 |
function == EFsFileWriteDirty ||
|
|
|
607 |
function == EFsRawDiskWrite ||
|
|
|
608 |
function == EFsMountFileSystemScan);
|
|
|
609 |
#endif //SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION
|
|
|
610 |
}
|
|
|
611 |
|
|
|
612 |
|
|
|
613 |
TInt CFsRequest::Read(TFsPluginRequest::TF32ArgType aType, TInt& aVal)
|
|
|
614 |
{
|
|
|
615 |
if(iOperation->Arg(0) == aType) { aVal = Message().Int0(); return KErrNone; }
|
|
|
616 |
if(iOperation->Arg(1) == aType) { aVal = Message().Int1(); return KErrNone; }
|
|
|
617 |
if(iOperation->Arg(2) == aType) { aVal = Message().Int2(); return KErrNone; }
|
|
|
618 |
if(iOperation->Arg(3) == aType) { aVal = Message().Int3(); return KErrNone; }
|
|
|
619 |
|
|
|
620 |
return KErrNotSupported;
|
|
|
621 |
}
|
|
|
622 |
|
|
|
623 |
|
|
|
624 |
TInt CFsRequest::Read(TFsPluginRequest::TF32ArgType aType, TUint& aVal)
|
|
|
625 |
{
|
|
|
626 |
if(iOperation->Arg(0) == aType) { aVal = (TUint)Message().Int0(); return KErrNone; }
|
|
|
627 |
if(iOperation->Arg(1) == aType) { aVal = (TUint)Message().Int1(); return KErrNone; }
|
|
|
628 |
if(iOperation->Arg(2) == aType) { aVal = (TUint)Message().Int2(); return KErrNone; }
|
|
|
629 |
if(iOperation->Arg(3) == aType) { aVal = (TUint)Message().Int3(); return KErrNone; }
|
|
|
630 |
|
|
|
631 |
return KErrNotSupported;
|
|
|
632 |
}
|
|
|
633 |
|
|
|
634 |
TInt CFsRequest::Read(TFsPluginRequest::TF32ArgType aType, TInt64& aVal)
|
|
|
635 |
{
|
|
|
636 |
TPckg<TInt64> pkVal(aVal);
|
|
|
637 |
// EFsFileLock, EFsFileUnLock, EFsFileSeek and EFsFileSetSize need special treatment
|
|
|
638 |
if(iOperation->Arg(0) == aType)
|
|
|
639 |
{
|
|
|
640 |
if((iOperation->Function()==EFsFileLock) ||
|
|
|
641 |
(iOperation->Function()==EFsFileUnLock) )
|
|
|
642 |
{
|
|
|
643 |
if(IsDescData(KMsgPtr0))
|
|
|
644 |
Read(KMsgPtr0,pkVal);
|
|
|
645 |
else
|
|
|
646 |
aVal = MAKE_TINT64(0, Message().Int0()); // Position is unsigned value
|
|
|
647 |
return KErrNone;
|
|
|
648 |
}
|
|
|
649 |
|
|
|
650 |
if((iOperation->Function()==EFsFileSeek) || // Seek offset (input paramater)
|
|
|
651 |
(iOperation->Function()==EFsFileSize) || // Size (output paramater)
|
|
|
652 |
(iOperation->Function()==EFsFileSetSize) ) // Size to be set (input paramater)
|
|
|
653 |
{
|
|
|
654 |
if(IsDescData(KMsgPtr0))
|
|
|
655 |
Read(KMsgPtr0,pkVal);
|
|
|
656 |
else
|
|
|
657 |
aVal = Message().Int0(); // Seek offset / Size is signed value
|
|
|
658 |
return KErrNone;
|
|
|
659 |
}
|
|
|
660 |
|
|
|
661 |
aVal = Message().Int0();
|
|
|
662 |
return KErrNone;
|
|
|
663 |
}
|
|
|
664 |
|
|
|
665 |
// EFsFileLock and EFsFileUnLock need special treatment
|
|
|
666 |
if(iOperation->Arg(1) == aType)
|
|
|
667 |
{
|
|
|
668 |
if((iOperation->Function()==EFsFileLock) ||
|
|
|
669 |
(iOperation->Function()==EFsFileUnLock) )
|
|
|
670 |
{
|
|
|
671 |
if(IsDescData(KMsgPtr1))
|
|
|
672 |
Read(KMsgPtr1,pkVal);
|
|
|
673 |
else
|
|
|
674 |
aVal = MAKE_TINT64(0, Message().Int1()); // Length is unsigned value
|
|
|
675 |
return KErrNone;
|
|
|
676 |
}
|
|
|
677 |
|
|
|
678 |
aVal = Message().Int1();
|
|
|
679 |
return KErrNone;
|
|
|
680 |
}
|
|
|
681 |
|
|
|
682 |
// EFsFileRead, EFsFileWrite, EFsFileSeek and EFsReadFileSection need special treatment
|
|
|
683 |
if(iOperation->Arg(2) == aType)
|
|
|
684 |
{
|
|
|
685 |
if((iOperation->Function()==EFsFileRead) ||
|
|
|
686 |
(iOperation->Function()==EFsFileWrite) )
|
|
|
687 |
{
|
|
|
688 |
if(IsDescData(KMsgPtr2))
|
|
|
689 |
Read(KMsgPtr2,pkVal);
|
|
|
690 |
else
|
|
|
691 |
{
|
|
|
692 |
if(Message().Int2() == (TInt)I64LOW(KCurrentPosition64))
|
|
|
693 |
aVal = KCurrentPosition64; // Position is KCurrentPosition64 (-1)
|
|
|
694 |
else
|
|
|
695 |
aVal = MAKE_TINT64(0,Message().Int2()); // Position is unsigned value
|
|
|
696 |
}
|
|
|
697 |
return KErrNone;
|
|
|
698 |
}
|
|
|
699 |
|
|
|
700 |
if(iOperation->Function()==EFsFileSeek)
|
|
|
701 |
{
|
|
|
702 |
if(IsDescData(KMsgPtr2))
|
|
|
703 |
Read(KMsgPtr2,pkVal);
|
|
|
704 |
else
|
|
|
705 |
aVal = Message().Int2(); // New position is signed value
|
|
|
706 |
return KErrNone;
|
|
|
707 |
}
|
|
|
708 |
|
|
|
709 |
if(iOperation->Function()==EFsReadFileSection)
|
|
|
710 |
{
|
|
|
711 |
if(IsDescData(KMsgPtr2))
|
|
|
712 |
Read(KMsgPtr2,pkVal);
|
|
|
713 |
else
|
|
|
714 |
aVal = MAKE_TINT64(0,Message().Int2()); // Position is unsigned value
|
|
|
715 |
return KErrNone;
|
|
|
716 |
}
|
|
|
717 |
|
|
|
718 |
aVal = Message().Int2();
|
|
|
719 |
return KErrNone;
|
|
|
720 |
}
|
|
|
721 |
|
|
|
722 |
if(iOperation->Arg(3) == aType)
|
|
|
723 |
{
|
|
|
724 |
aVal = Message().Int3();
|
|
|
725 |
return KErrNone;
|
|
|
726 |
}
|
|
|
727 |
|
|
|
728 |
return KErrNotSupported;
|
|
|
729 |
}
|
|
|
730 |
|
|
|
731 |
void CFsRequest::SetAndOpenScratchValue(const TInt64& aValue)
|
|
|
732 |
{
|
|
|
733 |
if (IsFsObjectOpen())
|
|
|
734 |
{
|
|
|
735 |
((CFsDispatchObject*) I64LOW(iScratchValue))->Close();
|
|
|
736 |
SetFsObjectOpen(EFalse);
|
|
|
737 |
}
|
|
|
738 |
if (I64LOW(aValue) && iOperation && (iOperation->iFlags & EFileShare))
|
|
|
739 |
{
|
|
|
740 |
((CFsDispatchObject*) I64LOW(aValue))->Open();
|
|
|
741 |
SetFsObjectOpen(ETrue);
|
|
|
742 |
}
|
|
|
743 |
iScratchValue = aValue;
|
|
|
744 |
}
|
|
|
745 |
|
|
|
746 |
|
|
|
747 |
TInt CFsRequest::Read(TFsPluginRequest::TF32ArgType aType, TDes8& aDes, TInt aOffset)
|
|
|
748 |
{
|
|
|
749 |
TInt slot = GetSlot(aType);
|
|
|
750 |
if(slot >= 0)
|
|
|
751 |
return Read(slot, aDes, aOffset);
|
|
|
752 |
return KErrNotSupported;
|
|
|
753 |
}
|
|
|
754 |
|
|
|
755 |
|
|
|
756 |
TInt CFsRequest::Read(TFsPluginRequest::TF32ArgType aType, TDes16& aDes, TInt aOffset)
|
|
|
757 |
{
|
|
|
758 |
TInt slot = GetSlot(aType);
|
|
|
759 |
if(slot >= 0)
|
|
|
760 |
return Read(slot, aDes, aOffset);
|
|
|
761 |
return KErrNotSupported;
|
|
|
762 |
}
|
|
|
763 |
|
|
|
764 |
|
|
|
765 |
TInt CFsRequest::Write(TFsPluginRequest::TF32ArgType aType, const TDesC8& aDes, TInt aOffset)
|
|
|
766 |
{
|
|
|
767 |
TInt slot = GetSlot(aType);
|
|
|
768 |
if(slot >= 0)
|
|
|
769 |
return Write(slot, aDes, aOffset);
|
|
|
770 |
return KErrNotSupported;
|
|
|
771 |
}
|
|
|
772 |
|
|
|
773 |
|
|
|
774 |
TInt CFsRequest::Write(TFsPluginRequest::TF32ArgType aType, const TDesC16& aDes, TInt aOffset)
|
|
|
775 |
{
|
|
|
776 |
TInt slot = GetSlot(aType);
|
|
|
777 |
if(slot >= 0)
|
|
|
778 |
return Write(slot, aDes, aOffset);
|
|
|
779 |
return KErrNotSupported;
|
|
|
780 |
}
|
|
|
781 |
|
|
|
782 |
|
|
|
783 |
TInt CFsRequest::Read(const TInt aMsgPtr,TDes8 &aDes)
|
|
|
784 |
{
|
|
|
785 |
if (Message().Handle() == KLocalMessageHandle)
|
|
|
786 |
{
|
|
|
787 |
TDesC8* pDes = (TDesC8*) ((const RLocalMessage*) &Message())->Arg(aMsgPtr);
|
|
|
788 |
if (aDes.MaxLength() < pDes->Length())
|
|
|
789 |
return KErrTooBig;
|
|
|
790 |
aDes.Copy(*pDes);
|
|
|
791 |
return KErrNone;
|
|
|
792 |
}
|
|
|
793 |
|
|
|
794 |
return Message().Read(aMsgPtr,aDes,0);
|
|
|
795 |
}
|
|
|
796 |
|
|
|
797 |
|
|
|
798 |
TInt CFsRequest::Read(const TInt aMsgPtr,TDes8 &aDes,TInt anOffset)
|
|
|
799 |
{
|
|
|
800 |
if (Message().Handle() == KLocalMessageHandle)
|
|
|
801 |
{
|
|
|
802 |
TDesC8* pDes = (TDesC8*) ((const RLocalMessage*) &Message())->Arg(aMsgPtr);
|
|
|
803 |
if (aDes.MaxLength() < pDes->Length() + anOffset)
|
|
|
804 |
return KErrTooBig;
|
|
|
805 |
aDes.SetLength(pDes->Length() + anOffset);
|
|
|
806 |
aDes.MidTPtr(anOffset).Copy(*pDes);
|
|
|
807 |
return KErrNone;
|
|
|
808 |
}
|
|
|
809 |
|
|
|
810 |
return Message().Read(aMsgPtr,aDes,anOffset);
|
|
|
811 |
}
|
|
|
812 |
|
|
|
813 |
|
|
|
814 |
TInt CFsRequest::Read(const TInt aMsgPtr,TDes16 &aDes)
|
|
|
815 |
{
|
|
|
816 |
if (Message().Handle() == KLocalMessageHandle)
|
|
|
817 |
{
|
|
|
818 |
TDesC16* pDes = (TDesC16*) ((const RLocalMessage*) &Message())->Arg(aMsgPtr);
|
|
|
819 |
if (aDes.MaxLength() < pDes->Length())
|
|
|
820 |
return KErrTooBig;
|
|
|
821 |
aDes.Copy(*pDes);
|
|
|
822 |
return KErrNone;
|
|
|
823 |
}
|
|
|
824 |
|
|
|
825 |
return Message().Read(aMsgPtr,aDes,0);
|
|
|
826 |
}
|
|
|
827 |
|
|
|
828 |
|
|
|
829 |
TInt CFsRequest::Read(const TInt aMsgPtr,TDes16 &aDes,TInt anOffset)
|
|
|
830 |
{
|
|
|
831 |
if (Message().Handle() == KLocalMessageHandle)
|
|
|
832 |
{
|
|
|
833 |
TDesC16* pDes = (TDesC16*) ((const RLocalMessage*) &Message())->Arg(aMsgPtr);
|
|
|
834 |
if (aDes.MaxLength() < pDes->Length() + anOffset)
|
|
|
835 |
return KErrTooBig;
|
|
|
836 |
aDes.SetLength(pDes->Length() + anOffset);
|
|
|
837 |
aDes.MidTPtr(anOffset).Copy(*pDes);
|
|
|
838 |
return KErrNone;
|
|
|
839 |
}
|
|
|
840 |
|
|
|
841 |
return Message().Read(aMsgPtr,aDes,anOffset);
|
|
|
842 |
}
|
|
|
843 |
|
|
|
844 |
|
|
|
845 |
TInt CFsRequest::Write(const TInt aMsgNum,const TDesC8 &aDes)
|
|
|
846 |
{
|
|
|
847 |
if (Message().Handle() == KLocalMessageHandle)
|
|
|
848 |
{
|
|
|
849 |
TDes8* pDes = (TDes8*) ((const RLocalMessage*) &Message())->Arg(aMsgNum);
|
|
|
850 |
if (pDes->MaxLength() < aDes.Length())
|
|
|
851 |
return KErrTooBig;
|
|
|
852 |
pDes->Copy(aDes);
|
|
|
853 |
return KErrNone;
|
|
|
854 |
}
|
|
|
855 |
|
|
|
856 |
return Message().Write(aMsgNum,aDes,0);
|
|
|
857 |
}
|
|
|
858 |
|
|
|
859 |
|
|
|
860 |
TInt CFsRequest::Write(const TInt aMsgNum,const TDesC8 &aDes,TInt anOffset)
|
|
|
861 |
{
|
|
|
862 |
if (Message().Handle() == KLocalMessageHandle)
|
|
|
863 |
{
|
|
|
864 |
TDes8* pDes = (TDes8*) ((const RLocalMessage*) &Message())->Arg(aMsgNum);
|
|
|
865 |
if (pDes->MaxLength() < aDes.Length() + anOffset)
|
|
|
866 |
return KErrTooBig;
|
|
|
867 |
pDes->SetLength(aDes.Length() + anOffset);
|
|
|
868 |
pDes->MidTPtr(anOffset).Copy(aDes);
|
|
|
869 |
return KErrNone;
|
|
|
870 |
}
|
|
|
871 |
|
|
|
872 |
return Message().Write(aMsgNum,aDes,anOffset);
|
|
|
873 |
}
|
|
|
874 |
|
|
|
875 |
|
|
|
876 |
TInt CFsRequest::Write(const TInt aMsgNum,const TDesC16 &aDes)
|
|
|
877 |
{
|
|
|
878 |
if (Message().Handle() == KLocalMessageHandle)
|
|
|
879 |
{
|
|
|
880 |
TDes16* pDes = (TDes16*) ((const RLocalMessage*) &Message())->Arg(aMsgNum);
|
|
|
881 |
if (pDes->MaxLength() < aDes.Length())
|
|
|
882 |
return KErrTooBig;
|
|
|
883 |
pDes->Copy(aDes);
|
|
|
884 |
return KErrNone;
|
|
|
885 |
}
|
|
|
886 |
|
|
|
887 |
return Message().Write(aMsgNum,aDes,0);
|
|
|
888 |
}
|
|
|
889 |
|
|
|
890 |
|
|
|
891 |
TInt CFsRequest::Write(const TInt aMsgNum,const TDesC16 &aDes,TInt anOffset)
|
|
|
892 |
{
|
|
|
893 |
if (Message().Handle() == KLocalMessageHandle)
|
|
|
894 |
{
|
|
|
895 |
TDes16* pDes = (TDes16*) ((const RLocalMessage*) &Message())->Arg(aMsgNum);
|
|
|
896 |
if (pDes->MaxLength() < aDes.Length() + anOffset)
|
|
|
897 |
return KErrTooBig;
|
|
|
898 |
pDes->SetLength(aDes.Length() + anOffset);
|
|
|
899 |
pDes->MidTPtr(anOffset).Copy(aDes);
|
|
|
900 |
return KErrNone;
|
|
|
901 |
}
|
|
|
902 |
|
|
|
903 |
return Message().Write(aMsgNum,aDes,anOffset);
|
|
|
904 |
}
|
|
|
905 |
|
|
|
906 |
|
|
|
907 |
void CFsRequest::ReadL(const TInt aMsgPtr,TDes8 &aDes)
|
|
|
908 |
{ User::LeaveIfError(Read(aMsgPtr,aDes)); }
|
|
|
909 |
|
|
|
910 |
void CFsRequest::ReadL(const TInt aMsgPtr,TDes8 &aDes,TInt anOffset)
|
|
|
911 |
{ User::LeaveIfError(Read(aMsgPtr,aDes,anOffset)); }
|
|
|
912 |
|
|
|
913 |
void CFsRequest::ReadL(const TInt aMsgPtr,TDes16 &aDes)
|
|
|
914 |
{ User::LeaveIfError(Read(aMsgPtr,aDes)); }
|
|
|
915 |
|
|
|
916 |
void CFsRequest::ReadL(const TInt aMsgPtr,TDes16 &aDes,TInt anOffset)
|
|
|
917 |
{ User::LeaveIfError(Read(aMsgPtr,aDes,anOffset)); }
|
|
|
918 |
|
|
|
919 |
void CFsRequest::WriteL(const TInt aMsgNum,const TDesC8 &aDes)
|
|
|
920 |
{ User::LeaveIfError(Write(aMsgNum,aDes)); }
|
|
|
921 |
|
|
|
922 |
void CFsRequest::WriteL(const TInt aMsgNum,const TDesC8 &aDes,TInt anOffset)
|
|
|
923 |
{ User::LeaveIfError(Write(aMsgNum,aDes,anOffset)); }
|
|
|
924 |
|
|
|
925 |
void CFsRequest::WriteL(const TInt aMsgNum,const TDesC16 &aDes)
|
|
|
926 |
{ User::LeaveIfError(Write(aMsgNum,aDes)); }
|
|
|
927 |
|
|
|
928 |
void CFsRequest::WriteL(const TInt aMsgNum,const TDesC16 &aDes,TInt anOffset)
|
|
|
929 |
{ User::LeaveIfError(Write(aMsgNum,aDes,anOffset)); }
|
|
|
930 |
|
|
|
931 |
|
|
|
932 |
/**
|
|
|
933 |
@param aMsgNum message argument index
|
|
|
934 |
@return client side descriptor length
|
|
|
935 |
*/
|
|
|
936 |
TInt CFsRequest::GetDesLength(const TInt aMsgNum)
|
|
|
937 |
{
|
|
|
938 |
if (Message().Handle() == KLocalMessageHandle)
|
|
|
939 |
{
|
|
|
940 |
TDes8* pDes = (TDes8*) ((const RLocalMessage*) &Message())->Arg(aMsgNum);
|
|
|
941 |
return pDes->Length();
|
|
|
942 |
}
|
|
|
943 |
else
|
|
|
944 |
{
|
|
|
945 |
return Message().GetDesLength(aMsgNum);
|
|
|
946 |
}
|
|
|
947 |
}
|
|
|
948 |
|
|
|
949 |
const RMessage2& CFsRequest::Message()
|
|
|
950 |
//
|
|
|
951 |
//
|
|
|
952 |
//
|
|
|
953 |
{
|
|
|
954 |
Fault(EBaseRequestMessage);
|
|
|
955 |
return(dummyM);
|
|
|
956 |
}
|
|
|
957 |
|
|
|
958 |
|
|
|
959 |
|
|
|
960 |
void CFsMessageRequest::Set(const RMessage2& aMessage,CSessionFs* aSession)
|
|
|
961 |
//
|
|
|
962 |
// For reuseable request
|
|
|
963 |
//
|
|
|
964 |
{
|
|
|
965 |
iMessage=aMessage;
|
|
|
966 |
iDrive=NULL;
|
|
|
967 |
iSubstedDrive=NULL;
|
|
|
968 |
CFsRequest::Set(aSession);
|
|
|
969 |
SetFreeChanged(EFalse);
|
|
|
970 |
EnablePostIntercept(ETrue);
|
|
|
971 |
}
|
|
|
972 |
|
|
|
973 |
|
|
|
974 |
void CFsMessageRequest::Set(const RMessage2& aMessage,const TOperation& aOperation,CSessionFs* aSession)
|
|
|
975 |
//
|
|
|
976 |
//
|
|
|
977 |
//
|
|
|
978 |
{
|
|
|
979 |
iCurrentPlugin=NULL;
|
|
|
980 |
iMessage=aMessage;
|
|
|
981 |
iDrive=NULL;
|
|
|
982 |
iSubstedDrive=NULL;
|
|
|
983 |
CFsRequest::Set(aOperation,aSession);
|
|
|
984 |
SetFreeChanged(EFalse);
|
|
|
985 |
EnablePostIntercept(ETrue);
|
|
|
986 |
}
|
|
|
987 |
|
|
|
988 |
void CFsMessageRequest::Set(const TOperation& aOperation)
|
|
|
989 |
{
|
|
|
990 |
iOperation=const_cast<TOperation*>(&aOperation);
|
|
|
991 |
}
|
|
|
992 |
|
|
|
993 |
void CFsMessageRequest::Process()
|
|
|
994 |
//
|
|
|
995 |
// Process the request - (passing to a plugin or a drive thread)
|
|
|
996 |
//
|
|
|
997 |
{
|
|
|
998 |
__THRD_PRINT3(_L("CFsMessageRequest::Process() req %08x state %d plugin 0x%x"), this, iReqState, iCurrentPlugin);
|
|
|
999 |
|
|
|
1000 |
// initialise request - if not initialised already
|
|
|
1001 |
if (iReqState == EReqStateInitialise)
|
|
|
1002 |
{
|
|
|
1003 |
TInt r = DoInitialise();
|
|
|
1004 |
if (r == EReqActionComplete)
|
|
|
1005 |
{
|
|
|
1006 |
return;
|
|
|
1007 |
}
|
|
|
1008 |
else if (r == EReqActionBusy) // request postponed ?
|
|
|
1009 |
{
|
|
|
1010 |
SetState(EReqStateInitialise);
|
|
|
1011 |
Dispatch(EFalse);
|
|
|
1012 |
return;
|
|
|
1013 |
}
|
|
|
1014 |
else if (r == KErrNone && iCurrentPlugin) // dispatch to plugin thread ?
|
|
|
1015 |
{
|
|
|
1016 |
Dispatch(EFalse);
|
|
|
1017 |
return;
|
|
|
1018 |
}
|
|
|
1019 |
}
|
|
|
1020 |
|
|
|
1021 |
if(iCurrentPlugin)
|
|
|
1022 |
{
|
|
|
1023 |
if (IsPostOperation())
|
|
|
1024 |
{
|
|
|
1025 |
ProcessPostOperation();
|
|
|
1026 |
return;
|
|
|
1027 |
}
|
|
|
1028 |
|
|
|
1029 |
if(!IsPluginSpecific())
|
|
|
1030 |
{
|
|
|
1031 |
ProcessPreOperation();
|
|
|
1032 |
return;
|
|
|
1033 |
}
|
|
|
1034 |
}
|
|
|
1035 |
|
|
|
1036 |
|
|
|
1037 |
// Is there a PostInitialise function ?
|
|
|
1038 |
if (iReqState == EReqStatePostInitialise)
|
|
|
1039 |
{
|
|
|
1040 |
TInt r = PostInitialise();
|
|
|
1041 |
if (r == EReqActionComplete)
|
|
|
1042 |
{
|
|
|
1043 |
return;
|
|
|
1044 |
}
|
|
|
1045 |
else if (r == EReqActionBusy) // request postponed ?
|
|
|
1046 |
{
|
|
|
1047 |
SetState(EReqStatePostInitialise);
|
|
|
1048 |
Dispatch(EFalse);
|
|
|
1049 |
return;
|
|
|
1050 |
}
|
|
|
1051 |
}
|
|
|
1052 |
|
|
|
1053 |
ProcessDriveOperation();
|
|
|
1054 |
}
|
|
|
1055 |
|
|
|
1056 |
void CFsMessageRequest::ProcessPostOperation()
|
|
|
1057 |
//
|
|
|
1058 |
// Process the message in post operation mode (handled by the current plugin)
|
|
|
1059 |
//
|
|
|
1060 |
{
|
|
|
1061 |
TInt err = KErrNone;
|
|
|
1062 |
if(!iCurrentPlugin->IsPluginThread(*this))
|
|
|
1063 |
{
|
|
|
1064 |
// The request hasn't come from this plugin so it's safe to dispatch
|
|
|
1065 |
TFsPluginRequest request(this);
|
|
|
1066 |
TRAPD(leaveValue, err = iCurrentPlugin->DoRequestL(request));
|
|
|
1067 |
if(leaveValue != KErrNone)
|
|
|
1068 |
{
|
|
|
1069 |
Panic(KFsClient,leaveValue);
|
|
|
1070 |
if(iOperation->IsOpenSubSess())
|
|
|
1071 |
RequestAllocator::OpenSubFailed(Session());
|
|
|
1072 |
Free();
|
|
|
1073 |
return;
|
|
|
1074 |
}
|
|
|
1075 |
|
|
|
1076 |
if(!IsExpectedResult(err))
|
|
|
1077 |
{
|
|
|
1078 |
Complete(err);
|
|
|
1079 |
return;
|
|
|
1080 |
}
|
|
|
1081 |
}
|
|
|
1082 |
|
|
|
1083 |
// Find the previous plugin in the chain and dispatch
|
|
|
1084 |
// - If no more plugins are interested in this message, then complete
|
|
|
1085 |
FsPluginManager::PrevPlugin(iCurrentPlugin, this, ETrue);
|
|
|
1086 |
if(iCurrentPlugin == NULL)
|
|
|
1087 |
{
|
|
|
1088 |
Complete(GetError());
|
|
|
1089 |
return;
|
|
|
1090 |
}
|
|
|
1091 |
|
|
|
1092 |
Dispatch();
|
|
|
1093 |
return;
|
|
|
1094 |
}
|
|
|
1095 |
|
|
|
1096 |
|
|
|
1097 |
void CFsMessageRequest::ProcessPreOperation()
|
|
|
1098 |
//
|
|
|
1099 |
// Process the message in pre operation mode (handled by the current plugin)
|
|
|
1100 |
//
|
|
|
1101 |
{
|
|
|
1102 |
TInt err = KErrNone;
|
|
|
1103 |
if(!iCurrentPlugin->IsPluginThread(*this))
|
|
|
1104 |
{
|
|
|
1105 |
// The request hasn't come from this plugin so it's safe to dispatch
|
|
|
1106 |
TFsPluginRequest request(this);
|
|
|
1107 |
TRAPD(leaveValue, err = iCurrentPlugin->DoRequestL(request));
|
|
|
1108 |
__PLUGIN_PRINT1(_L("PLUGIN: CFsMessageRequest:: %x processed by plugin"), this);
|
|
|
1109 |
|
|
|
1110 |
if((iOperation->Function() == EFsDismountPlugin) && (err != KErrPermissionDenied))
|
|
|
1111 |
{
|
|
|
1112 |
TRAP(leaveValue, err = iOperation->DoRequestL(this));
|
|
|
1113 |
}
|
|
|
1114 |
|
|
|
1115 |
if(leaveValue != KErrNone)
|
|
|
1116 |
{
|
|
|
1117 |
Panic(KFsClient,leaveValue);
|
|
|
1118 |
if(iOperation->IsOpenSubSess()) //this should be close subsession
|
|
|
1119 |
RequestAllocator::OpenSubFailed(Session()); //need a close subsession fail
|
|
|
1120 |
Free();
|
|
|
1121 |
return;
|
|
|
1122 |
}
|
|
|
1123 |
}
|
|
|
1124 |
|
|
|
1125 |
if(err == KErrNone)
|
|
|
1126 |
{
|
|
|
1127 |
// Find the next plugin in the chain and dispatch
|
|
|
1128 |
// - If no more plugins are interested in this message,
|
|
|
1129 |
// then Dispatch() will process the request in drive/main thread context.
|
|
|
1130 |
FsPluginManager::NextPlugin(iCurrentPlugin, this,(TBool)ETrue);
|
|
|
1131 |
if(iCurrentPlugin && IsPostOperation())
|
|
|
1132 |
SetPostOperation(EFalse);
|
|
|
1133 |
Dispatch();
|
|
|
1134 |
return;
|
|
|
1135 |
}
|
|
|
1136 |
// KErrCompletion may be returned by the plugin to
|
|
|
1137 |
// indicate that it has process the message itself (do post-intercept)
|
|
|
1138 |
else if (err == KErrCompletion)
|
|
|
1139 |
{
|
|
|
1140 |
// Find the previous plugin in the chain and dispatch
|
|
|
1141 |
// - If no more plugins are interested in this message, then complete
|
|
|
1142 |
FsPluginManager::PrevPlugin(iCurrentPlugin, this,(TBool)ETrue);
|
|
|
1143 |
if(iCurrentPlugin != NULL)
|
|
|
1144 |
{
|
|
|
1145 |
SetPostOperation(ETrue);
|
|
|
1146 |
err = KErrNone;
|
|
|
1147 |
Dispatch();
|
|
|
1148 |
return;
|
|
|
1149 |
}
|
|
|
1150 |
else
|
|
|
1151 |
{
|
|
|
1152 |
err = KErrNone;
|
|
|
1153 |
}
|
|
|
1154 |
}
|
|
|
1155 |
|
|
|
1156 |
Complete(err);
|
|
|
1157 |
return;
|
|
|
1158 |
}
|
|
|
1159 |
|
|
|
1160 |
|
|
|
1161 |
void CFsMessageRequest::ProcessDriveOperation()
|
|
|
1162 |
//
|
|
|
1163 |
// Process the message in drive (or main thread) context
|
|
|
1164 |
//
|
|
|
1165 |
{
|
|
|
1166 |
|
|
|
1167 |
// A new request is to be processed - kick off the inactivity/finalisation timer...
|
|
|
1168 |
FsThreadManager::StartFinalisationTimer(iDriveNumber);
|
|
|
1169 |
|
|
|
1170 |
TInt err = KErrNone;
|
|
|
1171 |
|
|
|
1172 |
TRAPD(leaveValue, err = iOperation->DoRequestL(this));
|
|
|
1173 |
|
|
|
1174 |
// Cancel hung state if a request from the drive thread has finished
|
|
|
1175 |
FsThreadManager::SetDriveHung(DriveNumber(), EFalse);
|
|
|
1176 |
|
|
|
1177 |
if(leaveValue != KErrNone)
|
|
|
1178 |
{
|
|
|
1179 |
Panic(KFsClient,leaveValue);
|
|
|
1180 |
if(iOperation->IsOpenSubSess())
|
|
|
1181 |
RequestAllocator::OpenSubFailed(Session());
|
|
|
1182 |
Free();
|
|
|
1183 |
return;
|
|
|
1184 |
}
|
|
|
1185 |
|
|
|
1186 |
// request postponed ? (e.g. if a page used by file cache is busy,
|
|
|
1187 |
// or because of fair scheduling).
|
|
|
1188 |
if (err == EReqActionBusy)
|
|
|
1189 |
{
|
|
|
1190 |
Dispatch();
|
|
|
1191 |
return;
|
|
|
1192 |
}
|
|
|
1193 |
|
|
|
1194 |
iLastError = err;
|
|
|
1195 |
|
|
|
1196 |
if(!IsExpectedResult(err) || IsPluginSpecific())
|
|
|
1197 |
{
|
|
|
1198 |
// no need to call DoNotify here since that requires err==KErrNone
|
|
|
1199 |
Complete(err);
|
|
|
1200 |
return;
|
|
|
1201 |
}
|
|
|
1202 |
|
|
|
1203 |
SetError(err);
|
|
|
1204 |
|
|
|
1205 |
|
|
|
1206 |
// Start issuing the post-operation requests starting from the bottom of the chain
|
|
|
1207 |
iCurrentPlugin = NULL;
|
|
|
1208 |
if (PostInterceptEnabled())
|
|
|
1209 |
{
|
|
|
1210 |
FsPluginManager::PrevPlugin(iCurrentPlugin, this,(TBool)ETrue);
|
|
|
1211 |
if(iCurrentPlugin && !iCurrentPlugin->IsPluginThread(*this))
|
|
|
1212 |
{
|
|
|
1213 |
SetPostOperation(ETrue);
|
|
|
1214 |
if (DispatchToPlugin())
|
|
|
1215 |
return;
|
|
|
1216 |
}
|
|
|
1217 |
}
|
|
|
1218 |
|
|
|
1219 |
Complete(GetError());
|
|
|
1220 |
return;
|
|
|
1221 |
}
|
|
|
1222 |
|
|
|
1223 |
void CFsMessageRequest::Complete(TInt aError)
|
|
|
1224 |
//
|
|
|
1225 |
//
|
|
|
1226 |
//
|
|
|
1227 |
{
|
|
|
1228 |
__THRD_PRINT2(_L("----- CFsMessageRequest::Complete() req %08x with %d"), this, aError);
|
|
|
1229 |
|
|
|
1230 |
if (aError==KErrNoMemory)
|
|
|
1231 |
{
|
|
|
1232 |
if (iDrive) // Not all message requests are associated with a drive!
|
|
|
1233 |
{
|
|
|
1234 |
TDriveInfo di;
|
|
|
1235 |
iDrive->DriveInfo(di);
|
|
|
1236 |
if (di.iType == EMediaRam)
|
|
|
1237 |
aError = KErrNoMemory;
|
|
|
1238 |
}
|
|
|
1239 |
}
|
|
|
1240 |
if(aError!=KErrNone)
|
|
|
1241 |
{
|
|
|
1242 |
if(iOperation->IsOpenSubSess())
|
|
|
1243 |
RequestAllocator::OpenSubFailed(Session());
|
|
|
1244 |
}
|
|
|
1245 |
|
|
|
1246 |
iLastError = aError;
|
|
|
1247 |
|
|
|
1248 |
// Call the current MessageOp's completion routine - if this returns EReqActionComplete,
|
|
|
1249 |
// then pop the request and call the next MessageOps's completion routine.
|
|
|
1250 |
// Do this until there are no more MessageOp's on the stack.
|
|
|
1251 |
//
|
|
|
1252 |
// Completion return codes:
|
|
|
1253 |
// EReqActionOwnedByPlugin: DON'T dispatch message again, DON'T complete message
|
|
|
1254 |
// EReqActionComplete: DON'T dispatch message again, DO complete message
|
|
|
1255 |
// EReqActionContinue: DO dispatch message again, DON'T complete message
|
|
|
1256 |
// EReqActionBusy DO dispatch message again, DON'T complete message,
|
|
|
1257 |
TInt completeErr;
|
|
|
1258 |
|
|
|
1259 |
for (completeErr = EReqActionComplete; CurrentOperationPtr() != NULL && completeErr == EReqActionComplete; )
|
|
|
1260 |
{
|
|
|
1261 |
// Get the completion routine from the current TMsgOperation and then pop it
|
|
|
1262 |
TFsRequestFunc doComplete = CurrentOperation().iComplete;
|
|
|
1263 |
PopOperation();
|
|
|
1264 |
|
|
|
1265 |
// Check that a completion routine is supplied if this isn't the last TMsgOperation
|
|
|
1266 |
__ASSERT_ALWAYS(iCurrentOperation == NULL || doComplete != NULL, Fault(EBadOperationIndex));
|
|
|
1267 |
|
|
|
1268 |
// Call the completion routine
|
|
|
1269 |
if (doComplete)
|
|
|
1270 |
completeErr = doComplete(this);
|
|
|
1271 |
|
|
|
1272 |
// Check return code is valid
|
|
|
1273 |
__ASSERT_DEBUG(completeErr == EReqActionContinue || completeErr == EReqActionBusy || completeErr == EReqActionComplete || completeErr == EReqActionOwnedByPlugin, Fault(EBadOperationCompletionCode));
|
|
|
1274 |
}
|
|
|
1275 |
|
|
|
1276 |
// a set of flags to determine what actions to take for each return code
|
|
|
1277 |
enum
|
|
|
1278 |
{
|
|
|
1279 |
EDispatch = 0x01, // dispatch request
|
|
|
1280 |
EComplete = 0x02, // complete request
|
|
|
1281 |
EFree =0x04, // free request
|
|
|
1282 |
EResetPostInitialised = 0x08, // call iPostInitialise again
|
|
|
1283 |
EDispatchToFront = 0x10 // dispatch to back of drive thread queue
|
|
|
1284 |
};
|
|
|
1285 |
const TUint actions[8] =
|
|
|
1286 |
{
|
|
|
1287 |
// 0 - EReqActionContinue
|
|
|
1288 |
EDispatch,
|
|
|
1289 |
// 1 - unused
|
|
|
1290 |
0,
|
|
|
1291 |
// 2 - unused
|
|
|
1292 |
0,
|
|
|
1293 |
// 3 - unused
|
|
|
1294 |
0,
|
|
|
1295 |
// 4 - EReqActionCompleteAndDispatch
|
|
|
1296 |
EDispatch | EComplete | EResetPostInitialised | EDispatchToFront,
|
|
|
1297 |
// 5 - EReqActionOwnedByPlugin
|
|
|
1298 |
0,
|
|
|
1299 |
// 6 - EReqActionBusy
|
|
|
1300 |
EDispatch | EResetPostInitialised,
|
|
|
1301 |
// 7 - EReqActionComplete
|
|
|
1302 |
EComplete | EFree,
|
|
|
1303 |
};
|
|
|
1304 |
|
|
|
1305 |
TUint actionFlags = actions[((TUint32) completeErr) & 0x00000007];
|
|
|
1306 |
|
|
|
1307 |
// To dispatch to drive thread and intercept before DoRequestL()
|
|
|
1308 |
// we must re-call iPostInitialise(), so reset iPostInitialised flag
|
|
|
1309 |
if (actionFlags & EResetPostInitialised)
|
|
|
1310 |
{
|
|
|
1311 |
// can only postpone the request if there's a PostInitialise() function
|
|
|
1312 |
__ASSERT_DEBUG(iOperation->iPostInitialise , Fault(EBadOperationCompletionCode));
|
|
|
1313 |
SetState(EReqStatePostInitialise);
|
|
|
1314 |
}
|
|
|
1315 |
|
|
|
1316 |
|
|
|
1317 |
|
|
|
1318 |
TInt dispatchError = KErrNone;
|
|
|
1319 |
TBool completeMessage = (iLastError != KErrNone) || (iIsCompleted && (actionFlags & EComplete));
|
|
|
1320 |
|
|
|
1321 |
// Need to lock drive to prevent both file server and drive thread from completing the same message (!)
|
|
|
1322 |
// or the dispatched thread from freeing the message before the first thread has completed it
|
|
|
1323 |
TDrive* drive = iDrive;
|
|
|
1324 |
if (drive)
|
|
|
1325 |
drive->Lock();
|
|
|
1326 |
|
|
|
1327 |
// don't go back up plugin chain once message has been completed
|
|
|
1328 |
if (completeMessage)
|
|
|
1329 |
EnablePostIntercept(EFalse);
|
|
|
1330 |
|
|
|
1331 |
if (actionFlags & EDispatch)
|
|
|
1332 |
{
|
|
|
1333 |
__ASSERT_DEBUG(((actionFlags & EFree) == 0), Fault(EInvalidCompletionFlags));
|
|
|
1334 |
__ASSERT_DEBUG (iCurrentPlugin == NULL, Fault(EInvalidMsgState));
|
|
|
1335 |
dispatchError = DispatchToDrive(EFalse, actionFlags & EDispatchToFront);
|
|
|
1336 |
}
|
|
|
1337 |
|
|
|
1338 |
|
|
|
1339 |
if ((actionFlags & EComplete) && IsExpectedResult(iLastError) && !IsPluginSpecific() && !IsNotifierSpecific())
|
|
|
1340 |
DoNotify(KErrNone);
|
|
|
1341 |
|
|
|
1342 |
|
|
|
1343 |
if (completeMessage)
|
|
|
1344 |
{
|
|
|
1345 |
iIsCompleted = EFalse;
|
|
|
1346 |
TInt msgHandle = Message().Handle();
|
|
|
1347 |
if ((msgHandle != KLocalMessageHandle) && (msgHandle != 0))
|
|
|
1348 |
Message().Complete(iLastError);
|
|
|
1349 |
if (IsPluginRequest())
|
|
|
1350 |
CFsPlugin::Complete(this, iLastError);
|
|
|
1351 |
}
|
|
|
1352 |
|
|
|
1353 |
if(iOperation->Function() == EFsFileSubClose)
|
|
|
1354 |
{
|
|
|
1355 |
HBufC* pFileName = (HBufC*) I64HIGH(ScratchValue64());
|
|
|
1356 |
if(pFileName)
|
|
|
1357 |
{
|
|
|
1358 |
delete pFileName;
|
|
|
1359 |
SetScratchValue(NULL);
|
|
|
1360 |
}
|
|
|
1361 |
}
|
|
|
1362 |
|
|
|
1363 |
if (drive)
|
|
|
1364 |
drive->UnLock();
|
|
|
1365 |
|
|
|
1366 |
if (actionFlags & EFree)
|
|
|
1367 |
Free();
|
|
|
1368 |
|
|
|
1369 |
// if the dispatch failed, then continue with popping MessageOps from the stack.
|
|
|
1370 |
if (dispatchError != KErrNone)
|
|
|
1371 |
Complete(dispatchError);
|
|
|
1372 |
}
|
|
|
1373 |
|
|
|
1374 |
void CFsMessageRequest::DoNotify(TInt aError)
|
|
|
1375 |
//
|
|
|
1376 |
//
|
|
|
1377 |
//
|
|
|
1378 |
{
|
|
|
1379 |
__PRINT1(_L("----- CFsMessageRequest::DoNotify() with %d"),aError);
|
|
|
1380 |
|
|
|
1381 |
TInt driveNumber = DriveNumber();
|
|
|
1382 |
|
|
|
1383 |
if(aError==KErrNone)
|
|
|
1384 |
{
|
|
|
1385 |
if(!(FsNotify::IsChangeQueEmpty(driveNumber)))
|
|
|
1386 |
FsNotify::HandleChange(this,driveNumber);
|
|
|
1387 |
if ((driveNumber != KDriveInvalid) && !(FsNotify::IsDiskSpaceQueEmpty(driveNumber)))
|
|
|
1388 |
FsNotify::HandleDiskSpace(this, DriveNumber());
|
|
|
1389 |
|
|
|
1390 |
#ifdef SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION
|
|
|
1391 |
if (iOperation->iFunction == EFsFileWrite)
|
|
|
1392 |
{
|
|
|
1393 |
CFileShare* share = (CFileShare*) this->ScratchValue();
|
|
|
1394 |
CFileCB* file = &share->File();
|
|
|
1395 |
CFileCache* fileCache = file->FileCache();
|
|
|
1396 |
|
|
|
1397 |
// Manage notifications for write with no cache or a write-through
|
|
|
1398 |
if (!fileCache || !fileCache->IsDirty())
|
|
|
1399 |
{
|
|
|
1400 |
FsNotificationManager::HandleChange((CFsClientMessageRequest&)*this);
|
|
|
1401 |
}
|
|
|
1402 |
}
|
|
|
1403 |
else if((iOperation->iFunction == EFsFileWriteDirty) && FsNotificationManager::IsInitialised())
|
|
|
1404 |
{
|
|
|
1405 |
CFileShare* share;
|
|
|
1406 |
CFileCB* file;
|
|
|
1407 |
GetFileFromScratch(this, share, file);
|
|
|
1408 |
|
|
|
1409 |
TFileName path;
|
|
|
1410 |
path.Append(file->DriveNumber() + 'A');
|
|
|
1411 |
path.Append(':');
|
|
|
1412 |
path.Append(file->FileName().Des());
|
|
|
1413 |
|
|
|
1414 |
// Manage notifications for write with caching enabled
|
|
|
1415 |
FsNotificationManager::HandleChange((CFsClientMessageRequest*)this, path, TFsNotification::EFileChange);
|
|
|
1416 |
}
|
|
|
1417 |
else if(IsNotifierSupported())
|
|
|
1418 |
{
|
|
|
1419 |
FsNotificationManager::HandleChange((CFsClientMessageRequest&)*this);
|
|
|
1420 |
}
|
|
|
1421 |
#endif //SYMBIAN_F32_ENHANCED_CHANGE_NOTIFICATION
|
|
|
1422 |
}
|
|
|
1423 |
}
|
|
|
1424 |
|
|
|
1425 |
|
|
|
1426 |
void CFsMessageRequest::Free()
|
|
|
1427 |
//
|
|
|
1428 |
//
|
|
|
1429 |
//
|
|
|
1430 |
{
|
|
|
1431 |
__THRD_PRINT1(_L("CFsMessageRequest::Free() isAllocated=%d"), IsAllocated());
|
|
|
1432 |
|
|
|
1433 |
SetScratchValue(0); // this should close the CFsObject
|
|
|
1434 |
|
|
|
1435 |
if(!IsAllocated())
|
|
|
1436 |
delete(this);
|
|
|
1437 |
else iOperation = NULL;
|
|
|
1438 |
|
|
|
1439 |
}
|
|
|
1440 |
|
|
|
1441 |
TInt CFsMessageRequest::DoInitialise()
|
|
|
1442 |
//
|
|
|
1443 |
// returns KErrNone if Initialise succeeded normally
|
|
|
1444 |
// or EReqActionComplete if request completed already
|
|
|
1445 |
// or EReqActionBusy if request needs dispatching & initialising again
|
|
|
1446 |
//
|
|
|
1447 |
{
|
|
|
1448 |
TInt r = KErrNone;
|
|
|
1449 |
|
|
|
1450 |
SetState(iOperation->iPostInitialise ? EReqStatePostInitialise : EReqStateDoRequest);
|
|
|
1451 |
r=Initialise();
|
|
|
1452 |
if(r==KErrBadHandle)
|
|
|
1453 |
{
|
|
|
1454 |
// bad subsession handle so panic client
|
|
|
1455 |
_LIT(KPanic,"Panic");
|
|
|
1456 |
Panic(KPanic,r);
|
|
|
1457 |
if(iOperation->IsOpenSubSess()) //this should be close subsession
|
|
|
1458 |
RequestAllocator::OpenSubFailed(Session()); //need a close subsession fail
|
|
|
1459 |
Free();
|
|
|
1460 |
r = EReqActionComplete;
|
|
|
1461 |
}
|
|
|
1462 |
else if (r == EReqActionComplete) // completed synchronously in Initialise() function ?
|
|
|
1463 |
{
|
|
|
1464 |
Complete(KErrNone);
|
|
|
1465 |
}
|
|
|
1466 |
else if (r == EReqActionBusy || r == EReqActionPending) // request postponed or owned by file share ?
|
|
|
1467 |
{
|
|
|
1468 |
}
|
|
|
1469 |
else if (r != KErrNone) // error
|
|
|
1470 |
{
|
|
|
1471 |
Complete(r);
|
|
|
1472 |
r = EReqActionComplete;
|
|
|
1473 |
}
|
|
|
1474 |
|
|
|
1475 |
return r;
|
|
|
1476 |
}
|
|
|
1477 |
|
|
|
1478 |
TInt CFsMessageRequest::PostInitialise()
|
|
|
1479 |
//
|
|
|
1480 |
// returns KErrNone if PostInitialise() succeeded normally
|
|
|
1481 |
// or EReqActionComplete if request completed already
|
|
|
1482 |
// or EReqActionBusy if request needs dispatching & initialising again
|
|
|
1483 |
//
|
|
|
1484 |
{
|
|
|
1485 |
TInt r = KErrNone;
|
|
|
1486 |
|
|
|
1487 |
SetState(EReqStateDoRequest);
|
|
|
1488 |
if (iOperation->iPostInitialise)
|
|
|
1489 |
r = iOperation->iPostInitialise(this);
|
|
|
1490 |
if (r == EReqActionComplete) // completed early ?
|
|
|
1491 |
{
|
|
|
1492 |
|
|
|
1493 |
// Start issuing the post-operation requests starting from the bottom of the chain
|
|
|
1494 |
iCurrentPlugin = NULL;
|
|
|
1495 |
if (PostInterceptEnabled())
|
|
|
1496 |
{
|
|
|
1497 |
FsPluginManager::PrevPlugin(iCurrentPlugin, this,(TBool)ETrue);
|
|
|
1498 |
if(iCurrentPlugin && !iCurrentPlugin->IsPluginThread(*this))
|
|
|
1499 |
{
|
|
|
1500 |
SetPostOperation(ETrue);
|
|
|
1501 |
Dispatch();
|
|
|
1502 |
return r; // EReqActionComplete
|
|
|
1503 |
}
|
|
|
1504 |
}
|
|
|
1505 |
|
|
|
1506 |
Complete(KErrNone);
|
|
|
1507 |
}
|
|
|
1508 |
else if (r == EReqActionBusy) // request postponed ?
|
|
|
1509 |
{
|
|
|
1510 |
}
|
|
|
1511 |
else if (r != KErrNone) // error
|
|
|
1512 |
{
|
|
|
1513 |
Complete(r);
|
|
|
1514 |
r = EReqActionComplete;
|
|
|
1515 |
}
|
|
|
1516 |
|
|
|
1517 |
return r;
|
|
|
1518 |
}
|
|
|
1519 |
|
|
|
1520 |
|
|
|
1521 |
// CFsMessageRequest::Dispatch()
|
|
|
1522 |
//
|
|
|
1523 |
// If aInitialise is EFalse, just disptach request to appropriate thread -
|
|
|
1524 |
// don't call DoInitialise() or PostInitialise()
|
|
|
1525 |
//
|
|
|
1526 |
void CFsMessageRequest::Dispatch(TBool aInitialise, TBool aLowPriority, TBool aDispatchToFront)
|
|
|
1527 |
{
|
|
|
1528 |
__THRD_PRINT1(_L("CFsMessageRequest::Dispatch() req %08x"), this);
|
|
|
1529 |
|
|
|
1530 |
TInt r = KErrNone;
|
|
|
1531 |
|
|
|
1532 |
if (iReqState == EReqStateInitialise && aInitialise)
|
|
|
1533 |
{
|
|
|
1534 |
r = DoInitialise();
|
|
|
1535 |
if (r == EReqActionComplete)
|
|
|
1536 |
{
|
|
|
1537 |
return;
|
|
|
1538 |
}
|
|
|
1539 |
else if (r == EReqActionBusy) // request postponed ?
|
|
|
1540 |
{
|
|
|
1541 |
SetState(EReqStateInitialise); // reinitialize when request is next processed
|
|
|
1542 |
}
|
|
|
1543 |
else if (r == EReqActionPending) // owned by file share ?
|
|
|
1544 |
{
|
|
|
1545 |
SetState(EReqStateInitialise); // reinitialize when request is next processed
|
|
|
1546 |
return;
|
|
|
1547 |
}
|
|
|
1548 |
if(!IsPluginSpecific() && (iOwnerPlugin == NULL))
|
|
|
1549 |
{
|
|
|
1550 |
iCurrentPlugin = NULL;
|
|
|
1551 |
iClientThreadId = 0;
|
|
|
1552 |
FsPluginManager::NextPlugin(iCurrentPlugin, this, (TBool)ETrue);
|
|
|
1553 |
|
|
|
1554 |
// find out whether there is a plugin registered to post intercept this message
|
|
|
1555 |
CFsPlugin* postInterceptPlugin = NULL;
|
|
|
1556 |
if (iCurrentPlugin == NULL)
|
|
|
1557 |
FsPluginManager::PrevPlugin(postInterceptPlugin, this, (TBool)ETrue);
|
|
|
1558 |
|
|
|
1559 |
// Save the client's thread Id for subsequent testing by CFsPlugin::IsPluginThread() - doing so on the fly
|
|
|
1560 |
// is risky because some messages are completed early in which case Message().Client() will result in a panic
|
|
|
1561 |
if ((iCurrentPlugin || postInterceptPlugin) && Message().Handle() != NULL && Message().Handle() != KLocalMessageHandle)
|
|
|
1562 |
{
|
|
|
1563 |
RThread thread;
|
|
|
1564 |
Message().Client(thread, EOwnerThread);
|
|
|
1565 |
iClientThreadId = thread.Id();
|
|
|
1566 |
thread.Close();
|
|
|
1567 |
}
|
|
|
1568 |
}
|
|
|
1569 |
} // initialise
|
|
|
1570 |
|
|
|
1571 |
|
|
|
1572 |
// dispatch to plugin thread if initialised (otherwise dispatch to drive thread)
|
|
|
1573 |
if (iReqState > EReqStateInitialise && DispatchToPlugin())
|
|
|
1574 |
{
|
|
|
1575 |
__PLUGIN_PRINT1(_L("PLUGIN: CFsMessageRequest %x dispatched to plugin (async)"), this);
|
|
|
1576 |
// The request has been delivered to the plugin thread
|
|
|
1577 |
// - leave the main thread now and await asynchronous completion
|
|
|
1578 |
return;
|
|
|
1579 |
}
|
|
|
1580 |
|
|
|
1581 |
|
|
|
1582 |
// Is there a PostInitialise function ?
|
|
|
1583 |
if (iReqState == EReqStatePostInitialise && aInitialise && r == KErrNone)
|
|
|
1584 |
{
|
|
|
1585 |
TInt r = PostInitialise();
|
|
|
1586 |
if (r == EReqActionComplete)
|
|
|
1587 |
return;
|
|
|
1588 |
else if (r == EReqActionBusy) // request postponed ?
|
|
|
1589 |
SetState(EReqStatePostInitialise); // reinitialize when request is next processed
|
|
|
1590 |
}
|
|
|
1591 |
|
|
|
1592 |
|
|
|
1593 |
if(!IsSeparateThread() || FsThreadManager::IsDriveSync(DriveNumber(),EFalse))
|
|
|
1594 |
{
|
|
|
1595 |
__PLUGIN_PRINT1(_L("PLUGIN: CFsMessageRequest %x dispatched to plugin (sync)"), this);
|
|
|
1596 |
FsPluginManager::DispatchSync(this);
|
|
|
1597 |
return;
|
|
|
1598 |
}
|
|
|
1599 |
|
|
|
1600 |
r = DispatchToDrive(aLowPriority, aDispatchToFront);
|
|
|
1601 |
if (r != KErrNone)
|
|
|
1602 |
Complete(r);
|
|
|
1603 |
}
|
|
|
1604 |
|
|
|
1605 |
inline TInt CFsMessageRequest::DispatchToDrive(TBool aLowPriority, TBool aDispatchToFront)
|
|
|
1606 |
{
|
|
|
1607 |
TInt drivenumber = DriveNumber();
|
|
|
1608 |
|
|
|
1609 |
if (drivenumber < EDriveA || drivenumber > EDriveZ)
|
|
|
1610 |
return KErrNotSupported;
|
|
|
1611 |
|
|
|
1612 |
FsThreadManager::LockDrive(drivenumber);
|
|
|
1613 |
|
|
|
1614 |
CDriveThread* dT=NULL;
|
|
|
1615 |
TInt r = FsThreadManager::GetDriveThread(drivenumber,&dT);
|
|
|
1616 |
|
|
|
1617 |
if(r == KErrNone)
|
|
|
1618 |
{
|
|
|
1619 |
CRequestThread* pT = (CRequestThread*)dT;
|
|
|
1620 |
|
|
|
1621 |
if (FsThreadManager::IsDriveHung(drivenumber))
|
|
|
1622 |
r = KErrNotReady;
|
|
|
1623 |
else if (aDispatchToFront)
|
|
|
1624 |
pT->DeliverFront(this);
|
|
|
1625 |
else
|
|
|
1626 |
pT->DeliverBack(this, aLowPriority);
|
|
|
1627 |
}
|
|
|
1628 |
else if (r == KErrAccessDenied)
|
|
|
1629 |
{
|
|
|
1630 |
Process();
|
|
|
1631 |
}
|
|
|
1632 |
|
|
|
1633 |
FsThreadManager::UnlockDrive(drivenumber);
|
|
|
1634 |
|
|
|
1635 |
return r;
|
|
|
1636 |
}
|
|
|
1637 |
|
|
|
1638 |
void CFsMessageRequest::Dispatch()
|
|
|
1639 |
{
|
|
|
1640 |
Dispatch(ETrue);
|
|
|
1641 |
}
|
|
|
1642 |
|
|
|
1643 |
TBool CFsMessageRequest::DispatchToPlugin()
|
|
|
1644 |
//
|
|
|
1645 |
//
|
|
|
1646 |
//
|
|
|
1647 |
{
|
|
|
1648 |
TInt drivenumber = DriveNumber();
|
|
|
1649 |
if(iCurrentPlugin)
|
|
|
1650 |
{
|
|
|
1651 |
FOREVER
|
|
|
1652 |
{
|
|
|
1653 |
// if we've reached a plugin which is waiting for Complete(), stop going up the plugin chain
|
|
|
1654 |
if(drivenumber >= 0 && IsPostOperation() && CurrentPluginWaiting())
|
|
|
1655 |
{
|
|
|
1656 |
// No more plug-ins need to process this request
|
|
|
1657 |
iCurrentPlugin = NULL;
|
|
|
1658 |
}
|
|
|
1659 |
|
|
|
1660 |
while(iCurrentPlugin && iCurrentPlugin->IsPluginThread(*this))
|
|
|
1661 |
{
|
|
|
1662 |
// Skip the current plugin if the request originated from the plugin
|
|
|
1663 |
if(IsPostOperation())
|
|
|
1664 |
{
|
|
|
1665 |
FsPluginManager::PrevPlugin(iCurrentPlugin, this,(TBool)ETrue);
|
|
|
1666 |
}
|
|
|
1667 |
else
|
|
|
1668 |
{
|
|
|
1669 |
FsPluginManager::NextPlugin(iCurrentPlugin, this,(TBool)ETrue);
|
|
|
1670 |
}
|
|
|
1671 |
}
|
|
|
1672 |
|
|
|
1673 |
if(iCurrentPlugin)
|
|
|
1674 |
{
|
|
|
1675 |
TFsPluginRequest request(this);
|
|
|
1676 |
__THRD_PRINT1(_L("CFsMessageRequest::DispatchToPlugin() req %08x"), this);
|
|
|
1677 |
|
|
|
1678 |
TInt err = iCurrentPlugin->Deliver(request);
|
|
|
1679 |
if(err == KErrNone)
|
|
|
1680 |
{
|
|
|
1681 |
|
|
|
1682 |
// The request has been delivered to the plugin thread
|
|
|
1683 |
// - leave the main thread now
|
|
|
1684 |
return(ETrue);
|
|
|
1685 |
}
|
|
|
1686 |
else if(err < KErrNone)
|
|
|
1687 |
{
|
|
|
1688 |
// An error has occurred
|
|
|
1689 |
// - complete the message
|
|
|
1690 |
Complete(err);
|
|
|
1691 |
return(ETrue);
|
|
|
1692 |
}
|
|
|
1693 |
else if(err == KPluginMessageForward)
|
|
|
1694 |
{
|
|
|
1695 |
// The plugin has processed synchronously (case 1)
|
|
|
1696 |
// - Pass the message on to the next plugin
|
|
|
1697 |
FsPluginManager::NextPlugin(iCurrentPlugin, this,(TBool)ETrue);
|
|
|
1698 |
continue;
|
|
|
1699 |
}
|
|
|
1700 |
else if(err == KPluginMessageComplete)
|
|
|
1701 |
{
|
|
|
1702 |
// The plugin has processed synchronously (case 2)
|
|
|
1703 |
// - Pass the message back up the stack
|
|
|
1704 |
SetPostOperation(ETrue);
|
|
|
1705 |
FsPluginManager::PrevPlugin(iCurrentPlugin, this,(TBool)ETrue);
|
|
|
1706 |
continue;
|
|
|
1707 |
}
|
|
|
1708 |
_LIT(KPanic,"Panic: F32-BAD-PLUGIN-ERROR");
|
|
|
1709 |
Panic(KPanic, err);
|
|
|
1710 |
}
|
|
|
1711 |
else if (IsPostOperation())
|
|
|
1712 |
{
|
|
|
1713 |
// No more plugins are interested in this request
|
|
|
1714 |
// - If in post operation, complete the request
|
|
|
1715 |
Complete(GetError());
|
|
|
1716 |
return(ETrue);
|
|
|
1717 |
}
|
|
|
1718 |
else
|
|
|
1719 |
{
|
|
|
1720 |
// No plugin is registered for pre-operation interception this message
|
|
|
1721 |
// - pass the request onto the drive thread.
|
|
|
1722 |
return EFalse;
|
|
|
1723 |
}
|
|
|
1724 |
}
|
|
|
1725 |
}
|
|
|
1726 |
|
|
|
1727 |
if(iOperation->Function() == EFsDismountPlugin)
|
|
|
1728 |
{
|
|
|
1729 |
// Don't pass plugin dismounts to the drive thread
|
|
|
1730 |
Process();
|
|
|
1731 |
return(ETrue);
|
|
|
1732 |
}
|
|
|
1733 |
|
|
|
1734 |
return EFalse;
|
|
|
1735 |
}
|
|
|
1736 |
|
|
|
1737 |
TDrive* CFsMessageRequest::Drive()
|
|
|
1738 |
//
|
|
|
1739 |
//
|
|
|
1740 |
//
|
|
|
1741 |
{
|
|
|
1742 |
return(iDrive);
|
|
|
1743 |
}
|
|
|
1744 |
|
|
|
1745 |
TDrive* CFsMessageRequest::SubstedDrive()
|
|
|
1746 |
//
|
|
|
1747 |
//
|
|
|
1748 |
//
|
|
|
1749 |
{
|
|
|
1750 |
return(iSubstedDrive);
|
|
|
1751 |
}
|
|
|
1752 |
|
|
|
1753 |
void CFsMessageRequest::SetDrive(TDrive* aDrive)
|
|
|
1754 |
//
|
|
|
1755 |
//
|
|
|
1756 |
//
|
|
|
1757 |
{
|
|
|
1758 |
iDrive=aDrive;
|
|
|
1759 |
if(aDrive)
|
|
|
1760 |
{
|
|
|
1761 |
iDriveNumber=aDrive->DriveNumber();
|
|
|
1762 |
}
|
|
|
1763 |
}
|
|
|
1764 |
|
|
|
1765 |
void CFsMessageRequest::SetSubstedDrive(TDrive* aDrive)
|
|
|
1766 |
//
|
|
|
1767 |
//
|
|
|
1768 |
//
|
|
|
1769 |
{
|
|
|
1770 |
iSubstedDrive=aDrive;
|
|
|
1771 |
}
|
|
|
1772 |
|
|
|
1773 |
const RMessage2& CFsMessageRequest::Message()
|
|
|
1774 |
//
|
|
|
1775 |
//
|
|
|
1776 |
//
|
|
|
1777 |
{
|
|
|
1778 |
return(iMessage);
|
|
|
1779 |
}
|
|
|
1780 |
|
|
|
1781 |
|
|
|
1782 |
|
|
|
1783 |
void CFsMessageRequest::ReStart()
|
|
|
1784 |
{
|
|
|
1785 |
__ASSERT_ALWAYS(CurrentOperationPtr() != NULL, Fault(EBadOperationIndex));
|
|
|
1786 |
|
|
|
1787 |
// restore original settings :
|
|
|
1788 |
TMsgOperation& currentOperation = CurrentOperation();
|
|
|
1789 |
TInt offset = currentOperation.iReadWriteArgs.iOffset;
|
|
|
1790 |
currentOperation.iReadWriteArgs.iPos-= offset;
|
|
|
1791 |
currentOperation.iReadWriteArgs.iTotalLength+= offset;
|
|
|
1792 |
currentOperation.iReadWriteArgs.iLength = currentOperation.iReadWriteArgs.iTotalLength;
|
|
|
1793 |
currentOperation.iReadWriteArgs.iOffset = 0;
|
|
|
1794 |
currentOperation.iState = 0;
|
|
|
1795 |
TInt function = iOperation->Function();
|
|
|
1796 |
__ASSERT_ALWAYS(function == EFsFileRead || function == EFsFileWrite, Fault(EMsgRestartBadFunction));
|
|
|
1797 |
}
|
|
|
1798 |
|
|
|
1799 |
|
|
|
1800 |
void CFsMessageRequest::SetOperationFunc(TInt aFunction)
|
|
|
1801 |
{
|
|
|
1802 |
const TOperation& oP = OperationArray[aFunction];
|
|
|
1803 |
Set(oP);
|
|
|
1804 |
// modified because some requests were set to PostInitialise. They are set to DoRequest in Dispatch anyway, so this is possibly ok?
|
|
|
1805 |
//__ASSERT_ALWAYS(iReqState == EReqStateDoRequest, Fault(EInvalidMsgState));
|
|
|
1806 |
}
|
|
|
1807 |
|
|
|
1808 |
TInt CFsMessageRequest::PushOperation(TFsRequestFunc aCallback, TInt aNextState, TInt aFunction)
|
|
|
1809 |
{
|
|
|
1810 |
TMsgOperation* nextOperation;
|
|
|
1811 |
TInt r = RequestAllocator::GetOperation(nextOperation);
|
|
|
1812 |
if (r != KErrNone)
|
|
|
1813 |
return r;
|
|
|
1814 |
|
|
|
1815 |
|
|
|
1816 |
// Store the caller's state etc in the CURRENT TMsgOperation (if there is one)
|
|
|
1817 |
if (iCurrentOperation != NULL)
|
|
|
1818 |
{
|
|
|
1819 |
__ASSERT_ALWAYS(aCallback, Fault(EPushOpNoCallback));
|
|
|
1820 |
iCurrentOperation->iState = aNextState;
|
|
|
1821 |
iCurrentOperation->iCurrentPlugin = iCurrentPlugin;
|
|
|
1822 |
iCurrentOperation->iFunction = iOperation->Function();
|
|
|
1823 |
iCurrentOperation->iNext = nextOperation;
|
|
|
1824 |
nextOperation->iPrev = iCurrentOperation;
|
|
|
1825 |
}
|
|
|
1826 |
|
|
|
1827 |
// store the call-back routine in the NEW TMsgOperation
|
|
|
1828 |
nextOperation->iComplete = aCallback;
|
|
|
1829 |
nextOperation->iState = 0;
|
|
|
1830 |
if (aFunction != KOperationFunctionUnaltered && aFunction != iOperation->Function())
|
|
|
1831 |
SetOperationFunc(aFunction);
|
|
|
1832 |
|
|
|
1833 |
|
|
|
1834 |
iCurrentOperation = nextOperation;
|
|
|
1835 |
|
|
|
1836 |
// reset post operation state: as a plugin may push more than one TMsgOperation
|
|
|
1837 |
SetPostOperation(EFalse);
|
|
|
1838 |
|
|
|
1839 |
return KErrNone;
|
|
|
1840 |
}
|
|
|
1841 |
|
|
|
1842 |
/**
|
|
|
1843 |
PushOperation()
|
|
|
1844 |
|
|
|
1845 |
Pushes a new TMsgOperation onto this request's "stack". After this function completes the new
|
|
|
1846 |
TMsgOperation object becomes the "current" one (pointed at by CFsMessageRequest::iCurrentOperation).
|
|
|
1847 |
|
|
|
1848 |
After the request has been dispatched to the drive thread, TOperation::DoRequestL() will be called.
|
|
|
1849 |
When this has completed, CFsMessage::Complete() is called which then pops the new TMsgOperation
|
|
|
1850 |
off the stack; and calls the callback routine (aCallback).
|
|
|
1851 |
|
|
|
1852 |
@param aPos The position to read / write. Stored in the NEW TMsgOperation.
|
|
|
1853 |
|
|
|
1854 |
@param aLength The length to read / write. Stored in the NEW TMsgOperation.
|
|
|
1855 |
|
|
|
1856 |
@param aData A buffer to read the data from / write the data to. Stored in the NEW TMsgOperation.
|
|
|
1857 |
The buffer must belong to the file server or to a plugin
|
|
|
1858 |
|
|
|
1859 |
@param aOffset The offset onto the buffer to read from / write to. Stored in the NEW TMsgOperation.
|
|
|
1860 |
|
|
|
1861 |
@param aCallback An optional callback routine. Stored in the OLD TMsgOperation.
|
|
|
1862 |
MUST be supplied if there are one or more TMsgOperation's already on the stack
|
|
|
1863 |
|
|
|
1864 |
@param aNextState State information private to the caller. Defaults to zero. Stored in the OLD TMsgOperation.
|
|
|
1865 |
|
|
|
1866 |
@param aFunction An optional TFsMessage. Supplied if the caller wishes to change the TOperation
|
|
|
1867 |
associated with this request. When the new TMsgOperation is popped off the stack, the
|
|
|
1868 |
previous TOperation is restored. Used primarally for read-modify-write.
|
|
|
1869 |
|
|
|
1870 |
*/
|
|
|
1871 |
TInt CFsMessageRequest::PushOperation(TInt64 aPos, TInt aLength, TUint8* aData, TInt aOffset, TFsRequestFunc aCallback, TInt aNextState, TInt aFunction)
|
|
|
1872 |
{
|
|
|
1873 |
TInt r = PushOperation(aCallback, aNextState, aFunction);
|
|
|
1874 |
if (r == KErrNone)
|
|
|
1875 |
CurrentOperation().Set(aPos, aLength, aData, aOffset, 0);
|
|
|
1876 |
return r;
|
|
|
1877 |
}
|
|
|
1878 |
|
|
|
1879 |
|
|
|
1880 |
/**
|
|
|
1881 |
PushOperation()
|
|
|
1882 |
|
|
|
1883 |
Pushes a new TMsgOperation onto this request's "stack". After this function completes the new
|
|
|
1884 |
TMsgOperation object becomes the "current" one (pointed at by CFsMessageRequest::iCurrentOperation).
|
|
|
1885 |
|
|
|
1886 |
After the request has been dispatched to the drive thread, TOperation::DoRequestL() will be called.
|
|
|
1887 |
When this has completed, CFsMessage::Complete() is called which then pops the new TMsgOperation
|
|
|
1888 |
off the stack; and calls the callback routine (aCallback).
|
|
|
1889 |
|
|
|
1890 |
@param aPos The position to read / write. Stored in the NEW TMsgOperation.
|
|
|
1891 |
|
|
|
1892 |
@param aLength The length to read / write. Stored in the NEW TMsgOperation.
|
|
|
1893 |
|
|
|
1894 |
@param aData A buffer to read the data from / write the data to. Stored in the NEW TMsgOperation.
|
|
|
1895 |
The buffer belongs to a client of the file server on the other side of an IPC boundary.
|
|
|
1896 |
|
|
|
1897 |
@param aOffset The offset onto the buffer to read from / write to. Stored in the NEW TMsgOperation.
|
|
|
1898 |
|
|
|
1899 |
@param aCallback An optional callback routine. Stored in the OLD TMsgOperation.
|
|
|
1900 |
MUST be supplied if there are one or more TMsgOperation's already on the stack
|
|
|
1901 |
|
|
|
1902 |
@param aNextState State information private to the caller. Defaults to zero. Stored in the OLD TMsgOperation.
|
|
|
1903 |
|
|
|
1904 |
@param aFunction An optional TFsMessage. Supplied if the caller wishes to change the TOperation
|
|
|
1905 |
associated with this request. When the new TMsgOperation is popped off the stack, the
|
|
|
1906 |
previous TOperation is restored. Used primarally for read-modify-write.
|
|
|
1907 |
|
|
|
1908 |
*/
|
|
|
1909 |
TInt CFsMessageRequest::PushOperation(TInt64 aPos, TInt aLength, TDesC8* aData, TInt aOffset, TFsRequestFunc aCallback, TInt aNextState, TInt aFunction)
|
|
|
1910 |
{
|
|
|
1911 |
TInt r = PushOperation(aCallback, aNextState, aFunction);
|
|
|
1912 |
if (r == KErrNone)
|
|
|
1913 |
CurrentOperation().Set(aPos, aLength, aData, aOffset, 0);
|
|
|
1914 |
return r;
|
|
|
1915 |
}
|
|
|
1916 |
|
|
|
1917 |
void CFsMessageRequest::PopOperation()
|
|
|
1918 |
{
|
|
|
1919 |
__ASSERT_ALWAYS(iCurrentOperation != NULL, Fault(EInvalidOperationIndex));
|
|
|
1920 |
|
|
|
1921 |
TMsgOperation* currentOperation = iCurrentOperation;
|
|
|
1922 |
|
|
|
1923 |
if (iCurrentOperation->iPrev == NULL)
|
|
|
1924 |
{
|
|
|
1925 |
iCurrentOperation = NULL;
|
|
|
1926 |
}
|
|
|
1927 |
else
|
|
|
1928 |
{
|
|
|
1929 |
TMsgOperation* prevOperation = iCurrentOperation->iPrev;
|
|
|
1930 |
prevOperation->iNext = NULL;
|
|
|
1931 |
iCurrentOperation = prevOperation;
|
|
|
1932 |
|
|
|
1933 |
iCurrentPlugin = iCurrentOperation->iCurrentPlugin;
|
|
|
1934 |
|
|
|
1935 |
if (iCurrentOperation->iFunction != iOperation->Function())
|
|
|
1936 |
SetOperationFunc(iCurrentOperation->iFunction);
|
|
|
1937 |
}
|
|
|
1938 |
|
|
|
1939 |
RequestAllocator::FreeOperation(currentOperation);
|
|
|
1940 |
}
|
|
|
1941 |
|
|
|
1942 |
TMsgOperation& CFsMessageRequest::CurrentOperation()
|
|
|
1943 |
{
|
|
|
1944 |
__ASSERT_ALWAYS(iCurrentOperation != NULL, Fault(EInvalidOperationIndex));
|
|
|
1945 |
return *iCurrentOperation;
|
|
|
1946 |
}
|
|
|
1947 |
|
|
|
1948 |
|
|
|
1949 |
CFsClientMessageRequest::CFsClientMessageRequest()
|
|
|
1950 |
: iPoolSrc (0),
|
|
|
1951 |
iPoolDest(0)
|
|
|
1952 |
{
|
|
|
1953 |
}
|
|
|
1954 |
|
|
|
1955 |
// Return ETrue if there are ANY TMsgOperation's in the stack which were pushed by iCurrentPlugin
|
|
|
1956 |
// If there are any, then it's NOT OK to dispatch this message to the plugin thread as it will be
|
|
|
1957 |
// waiting on a semaphore which is only cleared by Complete()
|
|
|
1958 |
TBool CFsMessageRequest::CurrentPluginWaiting()
|
|
|
1959 |
{
|
|
|
1960 |
if (iOwnerPlugin == iCurrentPlugin)
|
|
|
1961 |
return ETrue;
|
|
|
1962 |
|
|
|
1963 |
// find out which plugin (if any) was the last to push a TMsgOperation
|
|
|
1964 |
TMsgOperation* currentOperation;
|
|
|
1965 |
|
|
|
1966 |
for (currentOperation = iCurrentOperation ? iCurrentOperation->iPrev : NULL;
|
|
|
1967 |
currentOperation != NULL;
|
|
|
1968 |
currentOperation = currentOperation->iPrev)
|
|
|
1969 |
{
|
|
|
1970 |
if (currentOperation->iCurrentPlugin == iCurrentPlugin)
|
|
|
1971 |
return ETrue;
|
|
|
1972 |
}
|
|
|
1973 |
|
|
|
1974 |
return EFalse;
|
|
|
1975 |
}
|
|
|
1976 |
|
|
|
1977 |
|
|
|
1978 |
TBool CFsMessageRequest::IsPluginRequest()
|
|
|
1979 |
{
|
|
|
1980 |
if(iOwnerPlugin) // Check the previous operation had a plugin)
|
|
|
1981 |
{
|
|
|
1982 |
return ETrue;
|
|
|
1983 |
}
|
|
|
1984 |
return EFalse;
|
|
|
1985 |
}
|
|
|
1986 |
|
|
|
1987 |
|
|
|
1988 |
void CFsClientMessageRequest::Free()
|
|
|
1989 |
//
|
|
|
1990 |
//
|
|
|
1991 |
//
|
|
|
1992 |
{
|
|
|
1993 |
__THRD_PRINT(_L("CFsClientMessageRequest::Free()"));
|
|
|
1994 |
__ASSERT_ALWAYS(CurrentOperationPtr() == NULL, Fault(EFreeingMsgWithMsgOp));
|
|
|
1995 |
if (iPoolSrc)
|
|
|
1996 |
{
|
|
|
1997 |
TParsePool::Release(iPoolSrc);
|
|
|
1998 |
iPoolSrc = 0;
|
|
|
1999 |
}
|
|
|
2000 |
|
|
|
2001 |
if (iPoolDest)
|
|
|
2002 |
{
|
|
|
2003 |
TParsePool::Release(iPoolDest);
|
|
|
2004 |
iPoolDest = 0;
|
|
|
2005 |
}
|
|
|
2006 |
|
|
|
2007 |
SetScratchValue(0); // this should close the CFsObject
|
|
|
2008 |
iOperation = NULL;
|
|
|
2009 |
RequestAllocator::FreeRequest(this);
|
|
|
2010 |
}
|
|
|
2011 |
|
|
|
2012 |
|
|
|
2013 |
TInt CFsClientMessageRequest::AllocParseObjects(const TOperation& aOperation)
|
|
|
2014 |
{
|
|
|
2015 |
__ASSERT_ALWAYS(iPoolSrc == NULL && iPoolDest == NULL, Fault(ETParsePoolGet));
|
|
|
2016 |
|
|
|
2017 |
if (aOperation.iFlags & EParseSrc)
|
|
|
2018 |
{
|
|
|
2019 |
iPoolSrc = TParsePool::Get();
|
|
|
2020 |
if (iPoolSrc == NULL)
|
|
|
2021 |
return KErrNoMemory;
|
|
|
2022 |
}
|
|
|
2023 |
if (aOperation.iFlags & EParseDst)
|
|
|
2024 |
{
|
|
|
2025 |
iPoolDest = TParsePool::Get();
|
|
|
2026 |
if (iPoolDest == NULL)
|
|
|
2027 |
return KErrNoMemory;
|
|
|
2028 |
}
|
|
|
2029 |
return KErrNone;
|
|
|
2030 |
}
|
|
|
2031 |
|
|
|
2032 |
TParse& CFsClientMessageRequest::Src()
|
|
|
2033 |
//
|
|
|
2034 |
//
|
|
|
2035 |
{
|
|
|
2036 |
__ASSERT_ALWAYS(iPoolSrc, Fault(ETParsePoolGet));
|
|
|
2037 |
return (iPoolSrc->GetObject());
|
|
|
2038 |
}
|
|
|
2039 |
|
|
|
2040 |
TParse& CFsClientMessageRequest::Dest()
|
|
|
2041 |
//
|
|
|
2042 |
//
|
|
|
2043 |
//
|
|
|
2044 |
{
|
|
|
2045 |
__ASSERT_ALWAYS(iPoolDest, Fault(ETParsePoolGet));
|
|
|
2046 |
return (iPoolDest->GetObject());
|
|
|
2047 |
}
|
|
|
2048 |
|
|
|
2049 |
|
|
|
2050 |
|
|
|
2051 |
TParsePool* TParsePool::iFreeHead = 0;
|
|
|
2052 |
TParsePool* TParsePool::iClosedHead = 0;
|
|
|
2053 |
TInt TParsePool::iCountFree = 0;
|
|
|
2054 |
RFastLock TParsePool::iLock;
|
|
|
2055 |
|
|
|
2056 |
|
|
|
2057 |
TParsePool::TParsePool()
|
|
|
2058 |
: iNext (iFreeHead),
|
|
|
2059 |
iPrev (0),
|
|
|
2060 |
iFree (ETrue)
|
|
|
2061 |
{
|
|
|
2062 |
}
|
|
|
2063 |
|
|
|
2064 |
TInt TParsePool::Init()
|
|
|
2065 |
{
|
|
|
2066 |
return iLock.CreateLocal();
|
|
|
2067 |
}
|
|
|
2068 |
|
|
|
2069 |
TParsePool* TParsePool::Get()
|
|
|
2070 |
// Gets a TParsePool object from the free list. If the free list does
|
|
|
2071 |
// not contain any TParsePool objects, additional objects are manufactured.
|
|
|
2072 |
// Returns NULL if unable to allocate a new object
|
|
|
2073 |
{
|
|
|
2074 |
iLock.Wait();
|
|
|
2075 |
|
|
|
2076 |
TParsePool* pObject = 0;
|
|
|
2077 |
|
|
|
2078 |
// If we don't have anything in the free list, allocate some more...
|
|
|
2079 |
if (iCountFree < 1)
|
|
|
2080 |
{
|
|
|
2081 |
__ASSERT_DEBUG(iFreeHead == NULL, Fault(ETParsePoolGet));
|
|
|
2082 |
for (TInt i = 0; i < KEBlockSize; i++)
|
|
|
2083 |
{
|
|
|
2084 |
// if allocation fails break out of the loop.
|
|
|
2085 |
pObject = new TParsePool;
|
|
|
2086 |
if (pObject == NULL)
|
|
|
2087 |
break;
|
|
|
2088 |
|
|
|
2089 |
iCountFree++;
|
|
|
2090 |
|
|
|
2091 |
if (iFreeHead)
|
|
|
2092 |
iFreeHead->iPrev = pObject;
|
|
|
2093 |
|
|
|
2094 |
iFreeHead = pObject;
|
|
|
2095 |
}
|
|
|
2096 |
}
|
|
|
2097 |
|
|
|
2098 |
// if we failed to allocate even a single object, return NULL
|
|
|
2099 |
if (iCountFree < 1)
|
|
|
2100 |
{
|
|
|
2101 |
iLock.Signal();
|
|
|
2102 |
return NULL;
|
|
|
2103 |
}
|
|
|
2104 |
|
|
|
2105 |
|
|
|
2106 |
__ASSERT_ALWAYS(iFreeHead != NULL, Fault(ETParsePoolGet));
|
|
|
2107 |
|
|
|
2108 |
pObject = iFreeHead;
|
|
|
2109 |
pObject->iFree = EFalse;
|
|
|
2110 |
|
|
|
2111 |
|
|
|
2112 |
// Remove the head of the free list...
|
|
|
2113 |
iFreeHead = pObject->iNext;
|
|
|
2114 |
if (iFreeHead)
|
|
|
2115 |
iFreeHead->iPrev = 0;
|
|
|
2116 |
iCountFree--;
|
|
|
2117 |
|
|
|
2118 |
// ... and add it to the closed list
|
|
|
2119 |
pObject->iNext = iClosedHead;
|
|
|
2120 |
pObject->iPrev = 0;
|
|
|
2121 |
if (iClosedHead)
|
|
|
2122 |
iClosedHead->iPrev = pObject;
|
|
|
2123 |
iClosedHead = pObject;
|
|
|
2124 |
|
|
|
2125 |
iLock.Signal();
|
|
|
2126 |
|
|
|
2127 |
return pObject;
|
|
|
2128 |
}
|
|
|
2129 |
|
|
|
2130 |
|
|
|
2131 |
void TParsePool::Release(TParsePool* aObject)
|
|
|
2132 |
//
|
|
|
2133 |
// Release a sub-sequence of TParsePool objects back to the free list.
|
|
|
2134 |
//
|
|
|
2135 |
{
|
|
|
2136 |
__ASSERT_ALWAYS(aObject != NULL && !aObject->iFree, Fault(ETParsePoolGet));
|
|
|
2137 |
|
|
|
2138 |
iLock.Wait();
|
|
|
2139 |
|
|
|
2140 |
aObject->iFree = ETrue;
|
|
|
2141 |
|
|
|
2142 |
// Get the objects either side of the one we're interested in
|
|
|
2143 |
TParsePool* pPrevious = aObject->iPrev;
|
|
|
2144 |
TParsePool* pNext = aObject->iNext;
|
|
|
2145 |
|
|
|
2146 |
// Remove it from the closed list
|
|
|
2147 |
if (pPrevious)
|
|
|
2148 |
pPrevious->iNext = pNext;
|
|
|
2149 |
else
|
|
|
2150 |
iClosedHead = pNext;
|
|
|
2151 |
|
|
|
2152 |
if (pNext)
|
|
|
2153 |
pNext->iPrev = pPrevious;
|
|
|
2154 |
|
|
|
2155 |
|
|
|
2156 |
// Now add it to the free list
|
|
|
2157 |
aObject->iNext = iFreeHead;
|
|
|
2158 |
aObject->iPrev = 0;
|
|
|
2159 |
if (iFreeHead)
|
|
|
2160 |
iFreeHead->iPrev = aObject;
|
|
|
2161 |
|
|
|
2162 |
iFreeHead = aObject;
|
|
|
2163 |
iCountFree++;
|
|
|
2164 |
|
|
|
2165 |
iLock.Signal();
|
|
|
2166 |
}
|
|
|
2167 |
|
|
|
2168 |
|
|
|
2169 |
CFsInternalRequest::CFsInternalRequest()
|
|
|
2170 |
//
|
|
|
2171 |
//
|
|
|
2172 |
//
|
|
|
2173 |
{
|
|
|
2174 |
// iStatus=NULL;
|
|
|
2175 |
// iIsAllocated=EFalse;
|
|
|
2176 |
}
|
|
|
2177 |
|
|
|
2178 |
void CFsInternalRequest::Set(const TOperation& aOperation,CSessionFs* aSession)
|
|
|
2179 |
//
|
|
|
2180 |
//
|
|
|
2181 |
//
|
|
|
2182 |
{
|
|
|
2183 |
CFsRequest::Set(aOperation,aSession);
|
|
|
2184 |
}
|
|
|
2185 |
|
|
|
2186 |
void CFsInternalRequest::Process()
|
|
|
2187 |
//
|
|
|
2188 |
//
|
|
|
2189 |
//
|
|
|
2190 |
{
|
|
|
2191 |
__THRD_PRINT(_L("CFsInternalRequest::Process()"));
|
|
|
2192 |
TInt r=KErrNone;
|
|
|
2193 |
TRAPD(leaveValue,r=iOperation->DoRequestL(this));
|
|
|
2194 |
// internal requests should never fail
|
|
|
2195 |
__ASSERT_ALWAYS(leaveValue==KErrNone && (r==KErrNone||r==EReqActionBusy),Fault(EInternalRequestProcess));
|
|
|
2196 |
|
|
|
2197 |
// request postponed ? (e.g. if a page used by file cache is busy).
|
|
|
2198 |
if (r == EReqActionBusy)
|
|
|
2199 |
{
|
|
|
2200 |
Dispatch();
|
|
|
2201 |
return;
|
|
|
2202 |
}
|
|
|
2203 |
|
|
|
2204 |
Complete(r);
|
|
|
2205 |
}
|
|
|
2206 |
|
|
|
2207 |
|
|
|
2208 |
void CFsInternalRequest::Complete(TInt aError)
|
|
|
2209 |
//
|
|
|
2210 |
//
|
|
|
2211 |
//
|
|
|
2212 |
{
|
|
|
2213 |
__PRINT1(_L("CFsInternalRequest::Complete() with %d"),aError);
|
|
|
2214 |
TInt func = Operation()->Function();
|
|
|
2215 |
if(func==KCancelSession || func==KCancelPlugin || func==KFlushDirtyData)
|
|
|
2216 |
{
|
|
|
2217 |
__ASSERT_DEBUG(ThreadHandle()!=0 && !FsThreadManager::IsDisconnectThread(),Fault(EInternalRequestComplete1));
|
|
|
2218 |
RThread t;
|
|
|
2219 |
t.SetHandle(ThreadHandle());
|
|
|
2220 |
TRequestStatus* s=&Status();
|
|
|
2221 |
t.RequestComplete(s,aError);
|
|
|
2222 |
Free();
|
|
|
2223 |
}
|
|
|
2224 |
else if(func == KDispatchObjectClose)
|
|
|
2225 |
{
|
|
|
2226 |
TFsCloseObject::Complete(this);
|
|
|
2227 |
Free();
|
|
|
2228 |
}
|
|
|
2229 |
else if(func==KFileShareClose)
|
|
|
2230 |
{
|
|
|
2231 |
if (aError == EReqActionBusy)
|
|
|
2232 |
{
|
|
|
2233 |
Dispatch();
|
|
|
2234 |
}
|
|
|
2235 |
else
|
|
|
2236 |
{
|
|
|
2237 |
TFsCloseFileShare::Complete(this);
|
|
|
2238 |
Free();
|
|
|
2239 |
}
|
|
|
2240 |
}
|
|
|
2241 |
else
|
|
|
2242 |
Fault(EInternalRequestComplete3);
|
|
|
2243 |
}
|
|
|
2244 |
|
|
|
2245 |
void CFsInternalRequest::Dispatch()
|
|
|
2246 |
//
|
|
|
2247 |
//
|
|
|
2248 |
//
|
|
|
2249 |
{
|
|
|
2250 |
__THRD_PRINT(_L("CFsInternalRequest::Dispatch()"));
|
|
|
2251 |
__ASSERT_ALWAYS(Initialise()==KErrNone,Fault(EInternalRequestDispatch1));
|
|
|
2252 |
|
|
|
2253 |
if(iCurrentPlugin && Operation()->Function() == KCancelPlugin)
|
|
|
2254 |
{
|
|
|
2255 |
TFsPluginRequest request(this);
|
|
|
2256 |
TInt r = iCurrentPlugin->Deliver(request);
|
|
|
2257 |
__ASSERT_ALWAYS(r == KErrNone, Fault(EInternalRequestDispatchCancelPlugin));
|
|
|
2258 |
}
|
|
|
2259 |
else
|
|
|
2260 |
{
|
|
|
2261 |
TInt drivenumber = DriveNumber();
|
|
|
2262 |
FsThreadManager::LockDrive(drivenumber);
|
|
|
2263 |
// shouldn't dispath if no drive available
|
|
|
2264 |
__ASSERT_ALWAYS(FsThreadManager::IsDriveAvailable(drivenumber,EFalse) && !FsThreadManager::IsDriveSync(drivenumber,EFalse),Fault(EInternalRequestDispatch2));
|
|
|
2265 |
CDriveThread* dT=NULL;
|
|
|
2266 |
TInt r=FsThreadManager::GetDriveThread(drivenumber,&dT);
|
|
|
2267 |
__THRD_PRINT2(_L("deliver to thread 0x%x, drive number %d"),dT,drivenumber);
|
|
|
2268 |
__ASSERT_ALWAYS(r==KErrNone && dT,Fault(EInternalRequestDispatch3));
|
|
|
2269 |
CRequestThread* pT = (CRequestThread*)dT;
|
|
|
2270 |
TInt func = Operation()->Function();
|
|
|
2271 |
if(func == KDispatchObjectClose || func == KFileShareClose || func == KFlushDirtyData)
|
|
|
2272 |
pT->DeliverBack(this);
|
|
|
2273 |
else
|
|
|
2274 |
pT->DeliverFront(this);
|
|
|
2275 |
FsThreadManager::UnlockDrive(drivenumber);
|
|
|
2276 |
}
|
|
|
2277 |
}
|
|
|
2278 |
|
|
|
2279 |
void CFsInternalRequest::Free()
|
|
|
2280 |
//
|
|
|
2281 |
//
|
|
|
2282 |
//
|
|
|
2283 |
{
|
|
|
2284 |
__THRD_PRINT1(_L("CFsInternalRequest::Free() isAllocated=%d"),IsAllocated());
|
|
|
2285 |
|
|
|
2286 |
SetScratchValue(0); // this should close the CFsObject
|
|
|
2287 |
|
|
|
2288 |
if(!IsAllocated())
|
|
|
2289 |
delete(this);
|
|
|
2290 |
}
|
|
|
2291 |
|
|
|
2292 |
void CFsDisconnectRequest::Dispatch()
|
|
|
2293 |
//
|
|
|
2294 |
//
|
|
|
2295 |
//
|
|
|
2296 |
{
|
|
|
2297 |
__THRD_PRINT(_L("CFsDisconnectRequest::Dispatch()"));
|
|
|
2298 |
// no need to lock
|
|
|
2299 |
TInt r=Initialise();
|
|
|
2300 |
__ASSERT_ALWAYS(r==KErrNone,Fault(EDisconnectRequestDispatch1));
|
|
|
2301 |
CRequestThread* pT=FsThreadManager::GetDisconnectThread();
|
|
|
2302 |
__ASSERT_ALWAYS(pT,Fault(EDisconnectRequestDispatch2));
|
|
|
2303 |
pT->DeliverBack(this);
|
|
|
2304 |
}
|
|
|
2305 |
|
|
|
2306 |
void CFsDisconnectRequest::Process()
|
|
|
2307 |
//
|
|
|
2308 |
//
|
|
|
2309 |
//
|
|
|
2310 |
{
|
|
|
2311 |
__THRD_PRINT(_L("CFsDisconnectRequest::Process()"));
|
|
|
2312 |
TInt r=KErrNone;
|
|
|
2313 |
TRAPD(leaveValue,r=iOperation->DoRequestL(this));
|
|
|
2314 |
leaveValue=leaveValue; // just to make compiler happy
|
|
|
2315 |
__ASSERT_DEBUG(leaveValue==KErrNone && r==KErrNone,Fault(EDisonncectRequestProcess));
|
|
|
2316 |
Complete(r);
|
|
|
2317 |
}
|
|
|
2318 |
|
|
|
2319 |
void CFsDisconnectRequest::Complete(TInt aError)
|
|
|
2320 |
//
|
|
|
2321 |
//
|
|
|
2322 |
//
|
|
|
2323 |
{
|
|
|
2324 |
__PRINT1(_L("CFsDisconnectRequest::Complete() with %d"),aError);
|
|
|
2325 |
__ASSERT_ALWAYS(aError==KErrNone,Fault(EDisconnectRequestComplete));
|
|
|
2326 |
// set session disconnect reqeust to NULL
|
|
|
2327 |
// will be freed in CFsMessageRequest::Free()
|
|
|
2328 |
Session()->iDisconnectRequest=NULL;
|
|
|
2329 |
// now delete session
|
|
|
2330 |
TheFileServer->SessionQueueLockWait();
|
|
|
2331 |
delete(Session());
|
|
|
2332 |
TheFileServer->SessionQueueLockSignal();
|
|
|
2333 |
// NB Must complete the message AFTER the session has been deleted...
|
|
|
2334 |
Message().Complete(aError);
|
|
|
2335 |
delete(this);
|
|
|
2336 |
}
|
|
|
2337 |
|
|
|
2338 |
|
|
|
2339 |
/**
|
|
|
2340 |
Create a new synchronous message scheduler
|
|
|
2341 |
*/
|
|
|
2342 |
CFsSyncMessageScheduler* CFsSyncMessageScheduler::NewL()
|
|
|
2343 |
{
|
|
|
2344 |
__PRINT(_L("CFsSyncMessageScheduler::NewL()"));
|
|
|
2345 |
|
|
|
2346 |
CFsSyncMessageScheduler* pSelf = new(ELeave)CFsSyncMessageScheduler();
|
|
|
2347 |
|
|
|
2348 |
CleanupStack::PushL(pSelf);
|
|
|
2349 |
pSelf->ConstructL();
|
|
|
2350 |
CleanupStack::Pop();
|
|
|
2351 |
|
|
|
2352 |
return(pSelf);
|
|
|
2353 |
}
|
|
|
2354 |
|
|
|
2355 |
|
|
|
2356 |
/**
|
|
|
2357 |
Construct a synchronous message scheduler
|
|
|
2358 |
*/
|
|
|
2359 |
CFsSyncMessageScheduler::CFsSyncMessageScheduler()
|
|
|
2360 |
: CActive(EPriorityHigh),
|
|
|
2361 |
iList(_FOFF(CFsRequest,iLink))
|
|
|
2362 |
{
|
|
|
2363 |
__PRINT(_L("CFsSyncMessageScheduler::CFsSyncMessageScheduler()"));
|
|
|
2364 |
}
|
|
|
2365 |
|
|
|
2366 |
|
|
|
2367 |
/**
|
|
|
2368 |
Second-phase constructor
|
|
|
2369 |
*/
|
|
|
2370 |
|
|
|
2371 |
void CFsSyncMessageScheduler::ConstructL()
|
|
|
2372 |
{
|
|
|
2373 |
__PRINT(_L("CFsSyncMessageScheduler::ConstructL()"));
|
|
|
2374 |
|
|
|
2375 |
User::LeaveIfError(iLock.CreateLocal());
|
|
|
2376 |
User::LeaveIfError(iThread.Open(RThread().Id()));
|
|
|
2377 |
|
|
|
2378 |
CActiveScheduler::Add(this);
|
|
|
2379 |
}
|
|
|
2380 |
|
|
|
2381 |
|
|
|
2382 |
/**
|
|
|
2383 |
Synchronous message scheduler
|
|
|
2384 |
- dispatch any synchronous requests that were queued via ::Dispatch
|
|
|
2385 |
*/
|
|
|
2386 |
void CFsSyncMessageScheduler::RunL()
|
|
|
2387 |
{
|
|
|
2388 |
__PRINT(_L(">> CFsSyncMessageScheduler::RunL()"));
|
|
|
2389 |
|
|
|
2390 |
FOREVER
|
|
|
2391 |
{
|
|
|
2392 |
iLock.Wait();
|
|
|
2393 |
if(iList.IsEmpty())
|
|
|
2394 |
{
|
|
|
2395 |
break;
|
|
|
2396 |
}
|
|
|
2397 |
else
|
|
|
2398 |
{
|
|
|
2399 |
CFsRequest* request = iList.First();
|
|
|
2400 |
request->iLink.Deque();
|
|
|
2401 |
iLock.Signal();
|
|
|
2402 |
__PRINT1(_L(" CFsSyncMessageScheduler - Dispatching message %08x"), request);
|
|
|
2403 |
request->Process();
|
|
|
2404 |
}
|
|
|
2405 |
}
|
|
|
2406 |
|
|
|
2407 |
iSignalled = EFalse;
|
|
|
2408 |
iStatus = KRequestPending;
|
|
|
2409 |
SetActive();
|
|
|
2410 |
iLock.Signal();
|
|
|
2411 |
|
|
|
2412 |
__PRINT(_L("<< CFsSyncMessageScheduler::RunL()"));
|
|
|
2413 |
}
|
|
|
2414 |
|
|
|
2415 |
|
|
|
2416 |
/**
|
|
|
2417 |
DoCancel - Not Implemented
|
|
|
2418 |
*/
|
|
|
2419 |
void CFsSyncMessageScheduler::DoCancel()
|
|
|
2420 |
{
|
|
|
2421 |
__PRINT(_L("CFsSyncMessageScheduler::DoCancel"));
|
|
|
2422 |
}
|
|
|
2423 |
|
|
|
2424 |
|
|
|
2425 |
/**
|
|
|
2426 |
Queue synchronous requests to be processed in main thread context
|
|
|
2427 |
- called when synchronous messages are passed from plugin threads
|
|
|
2428 |
*/
|
|
|
2429 |
void CFsSyncMessageScheduler::Dispatch(CFsRequest* aRequest)
|
|
|
2430 |
{
|
|
|
2431 |
__PRINT1(_L("CFsSyncMessageScheduler::Dispatch(%08x)"), aRequest);
|
|
|
2432 |
|
|
|
2433 |
// Accquire lock and add request to queue.
|
|
|
2434 |
iLock.Wait();
|
|
|
2435 |
iList.AddFirst(*aRequest);
|
|
|
2436 |
|
|
|
2437 |
if(!iSignalled)
|
|
|
2438 |
{
|
|
|
2439 |
// set iSignalled in case another thread (plug-in) is calling dispatch, then release lock.
|
|
|
2440 |
iSignalled = ETrue;
|
|
|
2441 |
iLock.Signal();
|
|
|
2442 |
|
|
|
2443 |
// signal main thread.
|
|
|
2444 |
TRequestStatus* s = &iStatus;
|
|
|
2445 |
iThread.RequestComplete(s, KErrNone);
|
|
|
2446 |
}
|
|
|
2447 |
else
|
|
|
2448 |
{
|
|
|
2449 |
// main thread already signalled, just release lock.
|
|
|
2450 |
iLock.Signal();
|
|
|
2451 |
}
|
|
|
2452 |
}
|
|
|
2453 |
|
|
|
2454 |
|
|
|
2455 |
/**
|
|
|
2456 |
Complete outstanding requests for the specified session
|
|
|
2457 |
*/
|
|
|
2458 |
void CFsSyncMessageScheduler::CompleteSessionRequests(CSessionFs* aSession, TInt aValue)
|
|
|
2459 |
{
|
|
|
2460 |
__PRINT2(_L("FsPluginManager::CompleteSessionRequests(%08x, %d)"), aSession, aValue);
|
|
|
2461 |
|
|
|
2462 |
iLock.Wait();
|
|
|
2463 |
TDblQueIter<CFsRequest> q(iList);
|
|
|
2464 |
CFsRequest* pR;
|
|
|
2465 |
while((pR=q++)!=NULL)
|
|
|
2466 |
{
|
|
|
2467 |
if(pR->Session()==aSession)
|
|
|
2468 |
{
|
|
|
2469 |
pR->iLink.Deque();
|
|
|
2470 |
pR->Complete(aValue);
|
|
|
2471 |
}
|
|
|
2472 |
}
|
|
|
2473 |
iLock.Signal();
|
|
|
2474 |
}
|
|
|
2475 |
|