epoc32/include/gsmustor.h
branchSymbian2
changeset 2 2fe1408b6811
child 4 837f303aceeb
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1:666f914201fb 2:2fe1408b6811
       
     1 // Copyright (c) 1999-2009 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 "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 // Declares the classes TSAREntry and CSARStore
       
    15 // Abbreviations:
       
    16 // PDU - Packet Data Unit
       
    17 // SAR - Segmentation and Reassembly Store
       
    18 // SR  - Status Report
       
    19 // 
       
    20 //
       
    21 
       
    22 
       
    23 
       
    24 /**
       
    25  @file
       
    26 */
       
    27 
       
    28 #ifndef GSMUSTOR_H__
       
    29 #define GSMUSTOR_H__
       
    30 
       
    31 #include <e32base.h>
       
    32 #include <s32std.h>
       
    33 #include <s32file.h>
       
    34 #include <gsmumsg.h>
       
    35 #include <babackup.h>
       
    36 
       
    37 /**
       
    38  *  Filestore second UID for SAR stores.
       
    39  *  @publishedAll
       
    40  *  @released
       
    41  */
       
    42 const TUid KSARStoreUid={0x1000089d};
       
    43 
       
    44 //
       
    45 // forward declarations
       
    46 //
       
    47 class RReadStream;
       
    48 class RWriteStream;
       
    49 
       
    50 /**
       
    51  *  Provides generic information useful for the segmentation and reassembly of
       
    52  *  SMS messages and reassembly of WAP datagrams.
       
    53  *  
       
    54  *  The constituent parts of both concatenated SMS messages and concatenated 7-bit
       
    55  *  WAP datagrams contain a reference, the total number of parts and the index
       
    56  *  of the part in the complete message or datagram.
       
    57  *  
       
    58  *  Field for the segmentation store are:
       
    59  *  
       
    60  *  Reference - concatenation reference
       
    61  *  Total - total number of PDUs in SMS message
       
    62  *  Count - number of PDUs sent
       
    63  *  Data1 - total PDUs delivered<<16 and failed
       
    64  *  Data2 - log server id
       
    65  *  Data3 - validity period
       
    66  *  Data4 - type and min and max message reference
       
    67  *  Description1 - first 32 characters from buffer
       
    68  *  Description2 - original address
       
    69  *  Time - time on SMS message
       
    70  *  
       
    71  *  Abstracts an entry which is stored in the CSARStore
       
    72  *  
       
    73  *  The data stored in Data1-4 has a different meaning depending on if it is used
       
    74  *  by the Reassembly store or the Segmentation store. The lists below detail
       
    75  *  the uses:
       
    76  *  
       
    77  *  Reassembly store:
       
    78  *  
       
    79  *  Data1: byte 3: bits7to4; byte 1: identifier1; byte 0: identifier2.
       
    80  *  
       
    81  *  Data2: Log server ID.
       
    82  *  
       
    83  *  Data3: byte 0: PDU type.
       
    84  *  
       
    85  *  Data4: SMS message storage .
       
    86  *  
       
    87  *  Segmentation store:
       
    88  *  
       
    89  *  Data1: bytes 3, 2: N delivered; byte 1,0 N failed.
       
    90  *  
       
    91  *  Data2: Log server ID.
       
    92  *  
       
    93  *  Data3: SMS submit validity period.
       
    94  *  
       
    95  *  Data4: byte 3,2 message PDU type; byte 1: reference1; byte 0: reference2.
       
    96  *  
       
    97  *  WAP reassembly store:
       
    98  *  
       
    99  *  Data1: to port.
       
   100  *  
       
   101  *  Data2: not used .
       
   102  *  
       
   103  *  Data3: not used.
       
   104  *  
       
   105  *  Data4: not used.
       
   106  *  
       
   107  *  <pre>
       
   108  *  
       
   109  *  The data stored in Data1-4 has a different meaning depending on if it is used
       
   110  *  by the Reassembly store or the Segmentation store. The tables below detail
       
   111  *  the uses:
       
   112  *  
       
   113  *  Reassembly Store:
       
   114  *  
       
   115  *  -----------------------------------------------------------------
       
   116  *  |  member |    3      |      2      |      1      |      0      |
       
   117  *  -----------------------------------------------------------------
       
   118  *  | iData1  |    bits7to4             | identifier1 | identifier2 |
       
   119  *  | iData2  |                   Log server ID                     |
       
   120  *  | iData3  |                                       | PDU type    |
       
   121  *  | iData4  |                 SMS message storage                 |
       
   122  *  -----------------------------------------------------------------
       
   123  *  
       
   124  *  Segmentation Store:
       
   125  *  
       
   126  *  -----------------------------------------------------------------
       
   127  *  |  member |    3      |      2      |      1      |      0      |
       
   128  *  -----------------------------------------------------------------
       
   129  *  | iData1  |    N delivered          |         N failed          |
       
   130  *  | iData2  |                   Log server ID                     |
       
   131  *  | iData3  |              SMS submit validity period             |
       
   132  *  | iData4  |   message PDU type      | reference1  | reference2  |
       
   133  *  -----------------------------------------------------------------
       
   134  *  
       
   135  *  WAP Reassembly Store:
       
   136  *  
       
   137  *  -----------------------------------------------------------------
       
   138  *  |  member |    3      |      2      |      1      |      0      |
       
   139  *  -----------------------------------------------------------------
       
   140  *  | iData1  |                    to port                          |
       
   141  *  | iData2  |                   not used                          |
       
   142  *  | iData3  |                   not used                          |
       
   143  *  | iData4  |                   not used                          |
       
   144  *  -----------------------------------------------------------------
       
   145  *  
       
   146  *  </pre>
       
   147  *  
       
   148  *  @publishedAll
       
   149  *  @released 
       
   150  *
       
   151  */
       
   152 class TSAREntry
       
   153 	{
       
   154 public:
       
   155 	enum
       
   156 		{
       
   157 		ESmsSAREntryDescriptionLength=32
       
   158 		};
       
   159 public:
       
   160 	IMPORT_C TSAREntry();
       
   161 	inline TInt Reference() const;
       
   162 	inline void SetReference(TInt aReference);
       
   163 	inline TInt Total() const;
       
   164 	inline void SetTotal(TInt aTotal);
       
   165 	inline TInt Count() const;
       
   166 	inline void SetCount(TInt aCount);
       
   167 	inline TBool IsComplete() const;
       
   168 
       
   169 	/**
       
   170 	 *  Gets the Log server ID field.
       
   171 	 *  
       
   172 	 *  	@return Log server ID field 
       
   173 	 */
       
   174 	inline TInt LogServerId() const {return iData2;}
       
   175 	/**
       
   176 	 *  Sets the Log server ID field.
       
   177 	 *  
       
   178 	 *  	@param aId Log server ID field 
       
   179 	 */
       
   180 	inline void SetLogServerId(TInt aId) {iData2 = aId;}
       
   181 
       
   182 	inline TPtrC Description1() const;
       
   183 	inline void SetDescription1(const TDesC& aDescription);
       
   184 	inline TPtrC Description2() const;
       
   185 	inline void SetDescription2(const TDesC& aDescription);
       
   186 
       
   187 	inline TInt Data3() const;
       
   188 	inline void SetData3(TInt aData);
       
   189 
       
   190 	inline const TTime& Time() const;
       
   191 	inline void SetTime(const TTime& aTime);
       
   192 
       
   193 	inline TStreamId DataStreamId() const;
       
   194 	inline void SetDataStreamId(TStreamId aStreamId);
       
   195 
       
   196 	IMPORT_C void InternalizeL(RReadStream& aStream);
       
   197 	IMPORT_C void ExternalizeL(RWriteStream& aStream) const;
       
   198 
       
   199 private:
       
   200 	inline TBool IsDeleted() const;
       
   201 	inline void SetIsDeleted(TBool aIsDeleted);
       
   202 	inline TBool IsAdded() const;
       
   203 	inline void SetIsAdded(TBool aIsAdded);
       
   204 
       
   205 private:
       
   206 	enum TSAREntryFlags
       
   207 		{
       
   208 		ESAREntryIsDeleted=0x01, ///< indicates that this entry is deleted
       
   209 		ESAREntryIsAdded=0x02    ///< indicated that this entry is added
       
   210 		};
       
   211 private:
       
   212 	TInt iReference; ///< concatenation reference
       
   213 	TInt iTotal;     ///< total number of PDUs in this SMS message
       
   214 	TInt iCount;     ///< number of PDUs sent/received for this SMS message
       
   215 protected:
       
   216 	TInt iData1;     /// TODO should be TUint32
       
   217 	TInt iData2;     ///< Log server ID
       
   218 	TInt iData3;
       
   219 	TInt iData4;
       
   220 private:
       
   221 	TBuf<ESmsSAREntryDescriptionLength> iDescription1; ///< first 32 characters from buffer
       
   222 	TBuf<ESmsSAREntryDescriptionLength> iDescription2; ///< original address
       
   223 	TTime iTime;                                       ///< time when message was sent/received
       
   224 	TStreamId iDataStreamId;
       
   225 	TInt iFlags;  //  Not externalized
       
   226 	friend class CSARStore;
       
   227 	friend class CSmsPermanentFileStore;
       
   228 	friend class CPreallocatedFile;
       
   229 	};
       
   230 
       
   231 
       
   232 /**
       
   233  *  Abstraction of an SMS reassembly store entry for incoming SMS messages.
       
   234  *  
       
   235  *  This class should reflect parts of a complete SMS message to be stored in
       
   236  *  the reassembly store.
       
   237  *  @publishedAll
       
   238  *  @released 
       
   239  */
       
   240 class TSmsReassemblyEntry : public TSAREntry
       
   241 	{
       
   242 private:
       
   243 	enum
       
   244 		{
       
   245 		KMarkedAsPassedToClientFlag = 0x80000000,
       
   246 		KPduTypeMask = 0xFF,
       
   247 		KReassemblyEntryClear = 0x00
       
   248 		};
       
   249 
       
   250 public:
       
   251 	// iData1
       
   252 	/**
       
   253 	 *  Gets bits 7 to 4 from Data1 field.
       
   254 	 *  
       
   255 	 *  	@return Bits 7 to 4 of Data 1 
       
   256 	 */
       
   257 	inline TInt Bits7to4() const {return (iData1 >> 16) & 0xffff;}
       
   258 	/**
       
   259 	 *  Gets Identifier1 from Data1 field.
       
   260 	 *  
       
   261 	 *  	@return Identifier1 
       
   262 	 */
       
   263 	inline TInt Identifier1() const {return (iData1 >> 8) & 0xff;}
       
   264 	/**
       
   265 	 *  Gets Identifier2 from Data1 field.
       
   266 	 *  
       
   267 	 *  	@return Identifier2 
       
   268 	 */
       
   269 	inline TInt Identifier2() const {return (iData1 >> 0) & 0xff;}
       
   270 	inline void SetBits7to4andIdentifiers(TInt aBits7to4, TInt aId1, TInt aId2)
       
   271 	/**
       
   272 	 *  Sets bits 7 to 4, Identifier1, and Identifier2, in Data1 field.
       
   273 	 *  
       
   274 	 *  @param aBits7to4 Bits 7 to 4
       
   275 	 *  @param aId1 Identifier1
       
   276 	 *  	@param aId2 Identifier2 
       
   277 	 */
       
   278 	{iData1 = (TInt)((aBits7to4 << 16) | ((aId1 & 0xff)<< 8) | (aId2 & 0xff)); }
       
   279 
       
   280 	// iData3
       
   281 	/**
       
   282 	 *  Gets PDU type.
       
   283 	 *  
       
   284 	 *  	@return PDU type 
       
   285 	 */
       
   286 	inline CSmsPDU::TSmsPDUType PduType() const {return (CSmsPDU::TSmsPDUType)(iData3 & 0xff);} // 8 bits
       
   287 	/**
       
   288 	 *  Sets PDU type.
       
   289 	 *  
       
   290 	 *  	@param aPduType PDU type 
       
   291 	 */
       
   292 	inline void SetPduType(CSmsPDU::TSmsPDUType aPduType) {iData3 = (iData3 & ~KPduTypeMask) | (TInt)(aPduType & KPduTypeMask);}
       
   293 
       
   294 	/**
       
   295 	 *  Tests if Passed To Client flag is set.
       
   296 	 *  
       
   297 	 *  	@return True if Passed To Client flag is set. 
       
   298 	 */
       
   299 	inline TBool PassedToClient() const {return (iData3 & KMarkedAsPassedToClientFlag) ? ETrue:EFalse;}
       
   300 	/**
       
   301 	 *  Sets Passed To Client flag.
       
   302 	 *  
       
   303 	 *  	@param aPassed True if Passed To Client flag is set. 
       
   304 	 */
       
   305 	inline void SetPassedToClient(TBool aPassed) {iData3 = (iData3 & ~KMarkedAsPassedToClientFlag) | (aPassed ? KMarkedAsPassedToClientFlag : KReassemblyEntryClear);}
       
   306 
       
   307 	// iData4
       
   308 	/**
       
   309 	 *  Gets storage information.
       
   310 	 *  
       
   311 	 *  	@return Storage information 
       
   312 	 */
       
   313 	inline CSmsMessage::TMobileSmsStorage Storage() const {return (CSmsMessage::TMobileSmsStorage)(iData4 & 0xff);}
       
   314 	/**
       
   315 	 *  Sets storage information.
       
   316 	 *  
       
   317 	 *  	@param aStorage Storage information 
       
   318 	 */
       
   319 	inline void SetStorage(CSmsMessage::TMobileSmsStorage aStorage) {iData4 = (CSmsMessage::TMobileSmsStorage)aStorage;}
       
   320 	};
       
   321 
       
   322 
       
   323 /**
       
   324  *  Abstraction of an SMS segmentation store entry for outgoing SMS messages.
       
   325  *  
       
   326  *  This class should reflect parts of a complete SMS message to be stored in
       
   327  *  the segmentation store.
       
   328  *  @publishedAll
       
   329  *  @released 
       
   330  */
       
   331 class TSmsSegmentationEntry : public TSAREntry
       
   332 	{
       
   333 public:
       
   334 	// iData1
       
   335 	/**
       
   336 	 *  Gets number of delivered PDUs.
       
   337 	 *  
       
   338 	 *  	@return Number of delivered PDUs 
       
   339 	 */
       
   340 	inline TInt Delivered() const {return (iData1 >> 16);}
       
   341 	/**
       
   342 	 *  Gets number of permanently failed PDUs.
       
   343 	 *  
       
   344 	 *  	@return Number of permanently failed PDUs 
       
   345 	 */
       
   346 	inline TInt Failed() const {return (iData1 & 0xffff);}
       
   347 	inline void SetDeliveredAndFailed(TInt aDelivered, TInt aFailed)
       
   348 	/**
       
   349 	 *  Sets the number of delivered and failed PDUs.
       
   350 	 *  
       
   351 	 *  @param aDelivered Number of delivered PDUs
       
   352 	 *  	@param aFailed Number of permanently failed PDUs 
       
   353 	 */
       
   354 		{iData1 = ((aDelivered << 16) | (aFailed & 0xffff));}
       
   355 
       
   356 	// iData3
       
   357 	/**
       
   358 	 *  Gets the Validity Period.
       
   359 	 *  
       
   360 	 *  	@return Validity Period 
       
   361 	 */
       
   362 	inline TInt ValidityPeriod() const {return (iData3); }
       
   363 	/**
       
   364 	 *  Sets the Validity Period.
       
   365 	 *  
       
   366 	 *  	@param aValPer Validity Period 
       
   367 	 */
       
   368 	inline void SetValidityPeriod(TInt aValPer) {iData3 = aValPer; }
       
   369 
       
   370 	// iData4
       
   371 	/**
       
   372 	 *  Tests if a status report is expected.
       
   373 	 *  
       
   374 	 *  	@return True if a status report is expected 
       
   375 	 */
       
   376 	inline TBool ExpectStatusReport() const {return (((iData4 >> 24) & 0x01) == 0x01); }
       
   377 	/**
       
   378 	 *  Gets the type of the PDU.
       
   379 	 *  
       
   380 	 *  	@return Type of the PDU 
       
   381 	 */
       
   382 	inline CSmsPDU::TSmsPDUType PduType() const {return (CSmsPDU::TSmsPDUType)((iData4 >> 16) & 0xff); }
       
   383 	/**
       
   384 	 *  Gets the message reference (low byte).
       
   385 	 *  
       
   386 	 *  	@return Message reference (low byte) 
       
   387 	 */
       
   388 	inline TInt Reference1() const {return ((iData4 >> 8) & 0xff); }
       
   389 	/**
       
   390 	 *  Gets the message reference (high byte).
       
   391 	 *  
       
   392 	 *  	@return Message reference (high byte) 
       
   393 	 */
       
   394 	inline TInt Reference2() const {return ((iData4 >> 0) & 0xff); }
       
   395 	inline void SetPduTypeAndRefs(TBool aSR, TInt aPduType, TInt aRef1, TInt aRef2)
       
   396 	/**
       
   397 	 *  Sets status report flag, PDU type, and message references.
       
   398 	 *  
       
   399 	 *  @param aSR True if a status report is expected
       
   400 	 *  @param aPduType Type of the PDU
       
   401 	 *  @param aRef1 Message reference (low byte)
       
   402 	 *  	@param aRef2 Message reference (high byte) 
       
   403 	 */
       
   404 		{iData4 = (((aSR & 0x01) << 24) | (aPduType << 16) | ((aRef1 & 0xff ) << 8) | (aRef2 & 0xff));}
       
   405 	};
       
   406 
       
   407 
       
   408 /**
       
   409  *  Abstraction of a WAP reassembly store entry.
       
   410  *  This class should reflect a complete WAP message.
       
   411  *  @publishedAll
       
   412  *  @released
       
   413  */
       
   414 class TWapReassemblyEntry : public TSAREntry
       
   415 	{
       
   416 public:
       
   417 	/**
       
   418 	 *  Gets the destination port number.
       
   419 	 *  
       
   420 	 *  	@return Destination port number 
       
   421 	 */
       
   422 	inline TInt ToPort() const {return iData1;}
       
   423 	/**
       
   424 	 *  Sets the destination port number.
       
   425 	 *  
       
   426 	 *  	@param aToPort Destination port number 
       
   427 	 */
       
   428 	inline void SetToPort(TInt aToPort){iData1 = aToPort;}
       
   429 	};
       
   430 
       
   431 /**
       
   432  *  Controls the segmentation and reassembly (SAR) store, used for SMS segmentation
       
   433  *  and reassembly, and WAP reassembly.
       
   434  *  @publishedAll
       
   435  *  @released 
       
   436  */
       
   437 class CSARStore : public CBase
       
   438 	{
       
   439 public:
       
   440 	IMPORT_C void OpenL(const TDesC& aFullName,const TUid& aThirdUid);
       
   441 	IMPORT_C void Close();
       
   442 	IMPORT_C void CompactL();
       
   443 
       
   444 	IMPORT_C const CArrayFix<TSAREntry>& Entries() const;
       
   445 	IMPORT_C void PurgeL(const TTimeIntervalMinutes& aTimeIntervalMinutes,TBool aPurgeIncompleteOnly);
       
   446 	IMPORT_C void PurgeL(TInt aKSegmentationLifetimeMultiplier,TBool aPurgeIncompleteOnly);
       
   447 	IMPORT_C void DeleteEntryL(TInt aIndex);
       
   448 
       
   449 	IMPORT_C void BeginTransactionLC();
       
   450 	IMPORT_C void CommitTransactionL(); //Pops this off this cleanup stack and commits iFileStore
       
   451 	void Revert();
       
   452 
       
   453 	inline RFs& FileSession() const;
       
   454 	inline TBool InTransaction()const;
       
   455 	IMPORT_C void DoOpenL();
       
   456 	IMPORT_C void PrivatePath(TDes& aPath);
       
   457 
       
   458 
       
   459 protected:
       
   460 	IMPORT_C CSARStore(RFs& aFs);
       
   461 	IMPORT_C ~CSARStore();
       
   462 
       
   463 	IMPORT_C CFileStore& FileStore();
       
   464 	IMPORT_C const CFileStore& FileStore() const;
       
   465 
       
   466 	IMPORT_C void AddEntryL(const TSAREntry& aEntry);
       
   467 	IMPORT_C void ChangeEntryL(TInt aIndex,const TSAREntry& aNewEntry);
       
   468 
       
   469 	IMPORT_C TStreamId ExtraStreamId() const;
       
   470 	IMPORT_C void SetExtraStreamIdL(const TStreamId& aExtraStreamId);
       
   471 
       
   472 private:
       
   473 	void DoDeleteEntryL(TInt aIndex);  //  Deletes stream but doesn't call iFileStore->CommitL()
       
   474 	void InternalizeEntryArrayL();
       
   475 	void ExternalizeEntryArrayL();
       
   476 	void DoCommitAndCompactL();
       
   477 	void RemoveDeletedEntries();
       
   478 	void ReinstateDeletedEntries();
       
   479 
       
   480 private:
       
   481 	enum
       
   482 		{
       
   483 		KNumStoreCommitsBeforeCompaction=16
       
   484 		};
       
   485 
       
   486 protected:
       
   487 	RFs& iFs;                             ///< File server handle.
       
   488 private:
       
   489 
       
   490 	CFileStore* iFileStore;               ///< pointer to the file store
       
   491 	CArrayFixFlat<TSAREntry> iEntryArray; ///< array of SAR entries
       
   492 	TStreamId iExtraStreamId;             ///< used for any other data that needs persisting
       
   493 	TInt iCommitCount;                    ///< counts number of Commit's - used for CompactL
       
   494 	TPtrC iFullName;                      ///< holds the name of the File Store
       
   495 	TUid iThirdUid;
       
   496 	TBool iInTransaction;					///< For debugging purposes to ensure only one transaction at a time
       
   497 	};
       
   498 
       
   499 /**
       
   500  *  Closes all SAR stores if a backup event starts.
       
   501  *  
       
   502  *  This is internal and not intended for use.
       
   503  *  @publishedAll
       
   504  *  @released 
       
   505  */
       
   506 class CGsmuBackupObserver : public CBase, MBackupOperationObserver
       
   507 	{
       
   508 	public:
       
   509 		IMPORT_C static CGsmuBackupObserver* NewL();
       
   510 		IMPORT_C ~CGsmuBackupObserver();
       
   511 		IMPORT_C void AddSARStoreL(CSARStore& aSARStore);
       
   512 		IMPORT_C void RemoveSARStore(const CSARStore& aSARStore);
       
   513 
       
   514 	private:
       
   515 		CGsmuBackupObserver();
       
   516 		void ConstructL();
       
   517 		void HandleBackupOperationEventL(const TBackupOperationAttributes& aBackupOperationAttributes);
       
   518 
       
   519 		CBaBackupSessionWrapper* iBackup;
       
   520 		RPointerArray<CSARStore> iSARStores;
       
   521 	};
       
   522 
       
   523 #include "gsmustor.inl"
       
   524 
       
   525 #endif // !defined GSMUSTOR_H__