TSecureFilter Class Reference
| class TSecureFilter : public TStreamFilter |
| Inherited Functions |
|---|
| | MStreamBuf::Close() |
| | MStreamBuf::MStreamBuf() |
| | MStreamBuf::PushL() |
| | MStreamBuf::Read(TDes8 &,TInt,TRequestStatus &) |
| | MStreamBuf::Read(TDes8 &,TRequestStatus &) |
| | MStreamBuf::ReadL(MStreamInput &) |
| | MStreamBuf::ReadL(MStreamInput &,TInt) |
| | MStreamBuf::ReadL(MStreamInput &,TStreamTransfer) |
| | MStreamBuf::ReadL(TAny *,TInt) |
| | MStreamBuf::ReadL(TDes8 &,TInt,TRequestStatus &) |
| | MStreamBuf::ReadL(TDes8 &,TRequestStatus &) |
| | MStreamBuf::Release() |
| | MStreamBuf::SeekL(TMark,TStreamLocation,TInt) |
| | MStreamBuf::SeekL(TMark,TStreamPos) |
| | MStreamBuf::SeekL(TRead,TInt) |
| | MStreamBuf::SeekL(TRead,TStreamLocation,TInt) |
| | MStreamBuf::SeekL(TWrite,TInt) |
| | MStreamBuf::SeekL(TWrite,TStreamLocation,TInt) |
| | MStreamBuf::SizeL()const |
| | MStreamBuf::Synch() |
| | MStreamBuf::SynchL() |
| | MStreamBuf::TellL(TRead)const |
| | MStreamBuf::TellL(TWrite)const |
| | MStreamBuf::Write(const TDesC8 &,TInt,TRequestStatus &) |
| | MStreamBuf::Write(const TDesC8 &,TRequestStatus &) |
| | MStreamBuf::WriteL(MStreamOutput &) |
| | MStreamBuf::WriteL(MStreamOutput &,TInt) |
| | MStreamBuf::WriteL(MStreamOutput &,TStreamTransfer) |
| | MStreamBuf::WriteL(const TAny *,TInt) |
| | MStreamBuf::WriteL(const TDesC8 &,TInt,TRequestStatus &) |
| | MStreamBuf::WriteL(const TDesC8 &,TRequestStatus &) |
| | TStreamFilter::Committed() |
| | TStreamFilter::DoReadL(TAny *,TInt) |
| | TStreamFilter::DoRelease() |
| | TStreamFilter::DoWriteL(const TAny *,TInt) |
| | TStreamFilter::EmitL(const TAny *,TInt) |
| | TStreamFilter::IsCommitted()const |
| | TStreamFilter::TStreamFilter() |
Constructor & Destructor Documentation
TSecureFilter()
| TSecureFilter | ( | ) | [protected] |
Member Functions Documentation
Capacity(TInt)
| IMPORT_C TInt | Capacity | ( | TInt | aMaxLength | ) | [protected, virtual] |
Calculates the maximum size of unfiltered data necessary to give the specified amount of filtered data.
Parameters
| TInt aMaxLength | The amount of filtered data required. |
CompleteL(TDes8 &, const TDesC8 &)
| void | CompleteL | ( | TDes8 & | aTarget, |
| | const TDesC8 & | aSource |
| | ) | [private, pure virtual] |
CryptL(TDes8 &, const TDesC8 &)
DoSynchL()
| IMPORT_C void | DoSynchL | ( | ) | [protected, virtual] |
Synchronizes the host's intermediate buffer with its stream, leaving if any error occurs.
MStreamBuf::DoSynchL()
FilterL(TAny *, TInt, const TUint8 *&, const TUint8 *)
Performs the filtration process.
Parameters
| TAny * aPtr | Pointer to the output location for the filtered data. |
| TInt aMaxLength | The maximum amount of space available for the filtered data. |
| const TUint8 *& aFrom | A reference to a pointer to the unfiltered data source. This pointer should be advanced as the source is consumed. |
| const TUint8 * anEnd | Pointer to the first byte beyond the end of the unfiltered data source. |
Set(MStreamBuf *, TInt)
Sets up the filter to use the specified host for streamed data.
Taking ownership of the host stream buffer means that calls to SynchL() propagate to the host buffer after the filter has flushed its data, and that when the filter is released it also releases the host buffer.
MStreamBuf::TRead MStreamBuf::TWrite
Parameters
| MStreamBuf * aHost | The host for the streamed data - a stream buffer. |
| TInt aMode = EWrite | The mode in which the stream buffer is to be used. It can be used in either read or write modes, represented by ERead and EWrite, but not both at the same time. In debug mode, setting both raises a STORE-Stream 18 panic. In addition, specify EAttached to indicate that the filter should take ownership of the host stream buffer. |
Member Data Documentation
TBuf8< KEncryptionFilterBufSize > iIn
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reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License
v1.0.