OSB_LIB::Asn1Reader Class Reference

Collaboration diagram for OSB_LIB::Asn1Reader:

[legend]List of all members.

Detailed Description

Read and manage ASN.1 data.

Definition at line 150 of file asn1reader.h.

Public Member Functions

Asn1Reader ()
Default constructor.
~Asn1Reader ()
Destructor: deletes buffer_.
void init ()
Initialize to process a file with contiguous ASN.1 records.
void init (size_t blkSize, Asn1Byte blkFiller)
Initialize to process a file with block structure.
bool nextAsn1 (FILE *input)
Get the next ASN.1 record from the input.
const Asn1Info & info () const
Get information about ASN.1 type that was read.
Asn1Info & info ()
Get information about ASN.1 type that was read.
void asn1Data (Asn1Data &dest) const
Provide data as binary ASN.1.

Private Member Functions

Asn1Reader (const Asn1Reader &)
Prevent copying: not implemented.
Asn1Reader & operator= (const Asn1Reader &)
Prevent assignment: not implemented.
void reserve (size_t size, bool exact)
Allocate memory for buffer_.
bool getFlat (FILE *input)
Get ASN.1 data from file.
bool getBlock (FILE *input)
Get ASN.1 data from file with block structure.

Private Attributes

size_t blkSize_
Block size of the input file.
Asn1Byte blkFiller_
The block filler.
Asn1Byte * buffer_
Data buffer for ASN.1 data.
size_t bufSize_
Size of data allocated to buffer_.
size_t dataSize_
Size of valid data in buffer_.
size_t curPos_
Current position in buffer_.
long bufFilePos_
The position of buffer_[0] in the input file.
long bytesRead_
Number of bytes read from the input file.
Asn1Info info_
Information about ASN.1 type that was read.

Constructor & Destructor Documentation

OSB_LIB::Asn1Reader::Asn1Reader ( )

Default constructor.

OSB_LIB::Asn1Reader::~Asn1Reader ( )

Destructor: deletes buffer_.

OSB_LIB::Asn1Reader::Asn1Reader ( const Asn1Reader & ) [private]

Prevent copying: not implemented.

Member Function Documentation

void OSB_LIB::Asn1Reader::asn1Data ( Asn1Data & dest ) const

Provide data as binary ASN.1.

Parameters:

dest

Buffer to store the binary data.

This member is provided to write ASN.1 records with error(s) to a file.

bool OSB_LIB::Asn1Reader::getBlock ( FILE * input ) [private]

Get ASN.1 data from file with block structure.

Parameters:

input

Input file to use.

Returns:: true if successful, else false.

bool OSB_LIB::Asn1Reader::getFlat ( FILE * input ) [private]

Get ASN.1 data from file.

Parameters:

input

Input file to use.

Returns:: true if successful, else false.

Asn1Info& OSB_LIB::Asn1Reader::info ( )

Get information about ASN.1 type that was read.

Meaningful only after a successful call to nextAsn1().

const Asn1Info& OSB_LIB::Asn1Reader::info ( ) const

Get information about ASN.1 type that was read.

Meaningful only after calling a successful nextAsn1().

void OSB_LIB::Asn1Reader::init	(	size_t	blkSize,
		Asn1Byte	blkFiller
	)

Initialize to process a file with block structure.

Parameters:

	blkSize	Block size of input.
	blkFiller	Filler byte for unused data in a block.

See also:: init().

Call nextAsn1() to retrieve the first ASN.1 record from the input file.

void OSB_LIB::Asn1Reader::init ( )

Initialize to process a file with contiguous ASN.1 records.

See also:: init(size_t, Asn1Byte).

Call nextAsn1() to retrieve the first ASN.1 record from the input file.

bool OSB_LIB::Asn1Reader::nextAsn1 ( FILE * input )

Get the next ASN.1 record from the input.

Parameters:

input

Input file to use.

Returns:: true if another ASN.1 record is available, else false.

Reads data from input as needed:
this means that any ASN.1 info retrieved from the reader (directly with info() or via Asn1Info::nextMember()) are invalidated!

Asn1Reader& OSB_LIB::Asn1Reader::operator= ( const Asn1Reader & ) [private]

Prevent assignment: not implemented.