Class AddressTableObject

Inheritance Relationships

Base Type

Class Documentation

class AddressTableObject : public TableObject

This class represents the group address table.

It provides a mapping between transport layer service access points (TSAP) and group addresses. The TSAP can be imagined as an index to the array of group addresses.

See section 4.10 of [4] for further details. It implements realisation type 7 (see section 4.10.7 of [4]).

Public Functions

AddressTableObject(Memory &memory)

The constructor.

Parameters

memory – This parameter is only passed to the constructor of TableObject and is not used by this class.

virtual const uint8_t *restore(const uint8_t *buffer) override

This method is called when the object should restore its state from the buffer.

Parameters

buffer – The buffer the object should restore its state from.

Returns

The buffer plus the size of the object state. The next object will use this value as the start of its buffer.

uint16_t entryCount()

returns the number of group addresses of the object.

uint16_t getGroupAddress(uint16_t tsap)

Get the group address mapped to a TSAP.

Parameters

tsap – The TSAP of which to get the group address for.

Returns

the groupAddress if found or zero if no group address was found.

uint16_t getTsap(uint16_t groupAddress)

Get the TSAP mapped to a group address.

Parameters

groupAddress – the group address of which to get the TSAP for.

Returns

the TSAP if found or zero if no tsap was found.

bool contains(uint16_t groupAddress)

Check if the address table contains a group address.

Parameters

groupAddress – the group address to check

Returns

true if the address table contains the group address, false otherwise

Protected Functions

virtual void beforeStateChange(LoadState &newState) override

This method is called before the interface object enters a new LoadState.

If there is a error changing the state newState should be set to LS_ERROR and errorCode() to a reason for the failure.