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Class: CCSDSMerger

Parent class: PacketPipe

Description:
This class contains a number of SegmentAssembler objects in order to merge a stream of Swift UVOT-style packets containing multiple APIDs.

Unlike SegmentAssembler, this class is a PacketPipe. You may push segmented packets in and merged packets will come out the other end. You can also pull them out, but it is more efficient to push them in.

After creating a CCSDSMerger, you have to call the setNewAPID() method to teach the merger what merged packet APIDs correspond to which segmented packet APIDs.

This class has the same drain pipes as SegmentAssembler. Each of these pipes collects the outflow from the coresponding drain pipe of all the SegmentAssembler classes.

Data Fields

private map<int,SegmentAssembler*> assemblers

private map<int,int> apid_map

private int unique_packets

private PacketTee _scraps

private PacketTee _used

private PacketTee _duplicates

Constructors / Destructor

public CCSDSMerger()
Constructor.

public ~CCSDSMerger()

Methods

public SegmentAssembler* getAssembler(int apid)
Get the holding tank of packets waiting to be merged for a given apid.

public virtual int newAPID(int old_apid)
Returns the merged packet APID corresponding to a given segmented packet APID.

public virtual void setNewAPID(int old_apid, int new_apid)
This method tells the CCSDSMerger about a mapping between a segmented APID and the APID of the corresponding merged packets. By default the merged packet APID is the same as the segmented packet APID.

public virtual void hints(int)

public virtual PacketPipe& scraps()

public virtual PacketPipe& used()

public virtual PacketPipe& duplicates()

public virtual CCSDSPacket* addPacket(CCSDSPacket* generic_p)
Put a segmented packet into the appropriate assembler and return anything which pops out.

public virtual void pushIn(CCSDSPacket* p)
Put a segmented packet into the merger.

public virtual CCSDSPacket* pullOut()
Pull out a merged packet. Note it is more natural to push packets in than pull them out.

private virtual void flushScraps()
Flush the scraps from all the assemblers.

Operators

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Data Fields
private	map<int,SegmentAssembler*>	assemblers
private	map<int,int>	apid_map
private	int	unique_packets
private	PacketTee	_scraps
private	PacketTee	_used
private	PacketTee	_duplicates

Constructors / Destructor
public	CCSDSMerger() Constructor.
public	~CCSDSMerger()

Methods
public		SegmentAssembler*	getAssembler(int apid) Get the holding tank of packets waiting to be merged for a given apid.
public	virtual	int	newAPID(int old_apid) Returns the merged packet APID corresponding to a given segmented packet APID.
public	virtual	void	setNewAPID(int old_apid, int new_apid) This method tells the CCSDSMerger about a mapping between a segmented APID and the APID of the corresponding merged packets. By default the merged packet APID is the same as the segmented packet APID.
public	virtual	void	hints(int)
public	virtual	PacketPipe&	scraps()
public	virtual	PacketPipe&	used()
public	virtual	PacketPipe&	duplicates()
public	virtual	CCSDSPacket*	*addPacket(CCSDSPacket generic_p)** Put a segmented packet into the appropriate assembler and return anything which pops out.
public	virtual	void	*pushIn(CCSDSPacket p)** Put a segmented packet into the merger.
public	virtual	CCSDSPacket*	pullOut() Pull out a merged packet. Note it is more natural to push packets in than pull them out.
private	virtual	void	flushScraps() Flush the scraps from all the assemblers.