PTLib: asnper.h Source File

00001 /*
00002  * asnper.h
00003  *
00004  * Abstract Syntax Notation Encoding Rules classes
00005  *
00006  * Portable Windows Library
00007  *
00008  */
00009 
00010 #ifdef P_INCLUDE_PER
00011 
00014 class PPER_Stream : public PASN_Stream
00015 {
00016     PCLASSINFO(PPER_Stream, PASN_Stream);
00017   public:
00018     PPER_Stream(BOOL aligned = TRUE);
00019     PPER_Stream(const PBYTEArray & bytes, BOOL aligned = TRUE);
00020     PPER_Stream(const BYTE * buf, PINDEX size, BOOL aligned = TRUE);
00021 
00022     PPER_Stream & operator=(const PBYTEArray & bytes);
00023 
00024     unsigned GetBitsLeft() const;
00025 
00026     virtual BOOL Read(PChannel & chan);
00027     virtual BOOL Write(PChannel & chan);
00028 
00029     virtual BOOL NullDecode(PASN_Null &);
00030     virtual void NullEncode(const PASN_Null &);
00031     virtual BOOL BooleanDecode(PASN_Boolean &);
00032     virtual void BooleanEncode(const PASN_Boolean &);
00033     virtual BOOL IntegerDecode(PASN_Integer &);
00034     virtual void IntegerEncode(const PASN_Integer &);
00035     virtual BOOL EnumerationDecode(PASN_Enumeration &);
00036     virtual void EnumerationEncode(const PASN_Enumeration &);
00037     virtual BOOL RealDecode(PASN_Real &);
00038     virtual void RealEncode(const PASN_Real &);
00039     virtual BOOL ObjectIdDecode(PASN_ObjectId &);
00040     virtual void ObjectIdEncode(const PASN_ObjectId &);
00041     virtual BOOL BitStringDecode(PASN_BitString &);
00042     virtual void BitStringEncode(const PASN_BitString &);
00043     virtual BOOL OctetStringDecode(PASN_OctetString &);
00044     virtual void OctetStringEncode(const PASN_OctetString &);
00045     virtual BOOL ConstrainedStringDecode(PASN_ConstrainedString &);
00046     virtual void ConstrainedStringEncode(const PASN_ConstrainedString &);
00047     virtual BOOL BMPStringDecode(PASN_BMPString &);
00048     virtual void BMPStringEncode(const PASN_BMPString &);
00049     virtual BOOL ChoiceDecode(PASN_Choice &);
00050     virtual void ChoiceEncode(const PASN_Choice &);
00051     virtual BOOL ArrayDecode(PASN_Array &);
00052     virtual void ArrayEncode(const PASN_Array &);
00053     virtual BOOL SequencePreambleDecode(PASN_Sequence &);
00054     virtual void SequencePreambleEncode(const PASN_Sequence &);
00055     virtual BOOL SequenceKnownDecode(PASN_Sequence &, PINDEX, PASN_Object &);
00056     virtual void SequenceKnownEncode(const PASN_Sequence &, PINDEX, const PASN_Object &);
00057     virtual BOOL SequenceUnknownDecode(PASN_Sequence &);
00058     virtual void SequenceUnknownEncode(const PASN_Sequence &);
00059 
00060     BOOL IsAligned() const { return aligned; }
00061 
00062     BOOL SingleBitDecode();
00063     void SingleBitEncode(BOOL value);
00064 
00065     BOOL MultiBitDecode(unsigned nBits, unsigned & value);
00066     void MultiBitEncode(unsigned value, unsigned nBits);
00067 
00068     BOOL SmallUnsignedDecode(unsigned & value);
00069     void SmallUnsignedEncode(unsigned value);
00070 
00071     BOOL LengthDecode(unsigned lower, unsigned upper, unsigned & len);
00072     void LengthEncode(unsigned len, unsigned lower, unsigned upper);
00073 
00074     BOOL UnsignedDecode(unsigned lower, unsigned upper, unsigned & value);
00075     void UnsignedEncode(int value, unsigned lower, unsigned upper);
00076 
00077     void AnyTypeEncode(const PASN_Object * value);
00078 
00079   protected:
00080     BOOL aligned;
00081 };
00082 
00083 #endif
00084