isc::dhcp::ScopedPktOptionsCopy< PktType > Class Template Reference

RAII object enabling duplication of the stored options and restoring the original options on destructor. More...

#include <pkt.h>

Public Member Functions
	ScopedPktOptionsCopy (PktType &pkt)
	Constructor.
	~ScopedPktOptionsCopy ()
	Destructor.

Detailed Description

template<typename PktType>
class isc::dhcp::ScopedPktOptionsCopy< PktType >

RAII object enabling duplication of the stored options and restoring the original options on destructor.

This object enables duplication of the stored options and restoring the original options on destructor. When the object goes out of scope, the initial options are restored. This is applicable in cases when the server is going to invoke a callout (hook library) where the list of options in the packet will be modified. The use of RAII object eliminates the need for explicitly copying and restoring the list of options and is safer in case of exceptions thrown by callouts and a presence of multiple exit points.

Template Parameters

PktType

Type of the packet, e.g. Pkt4, Pkt6, Pkt4o6.

Definition at line 1041 of file pkt.h.

Constructor & Destructor Documentation

ScopedPktOptionsCopy()

template<typename PktType >

isc::dhcp::ScopedPktOptionsCopy< PktType >::ScopedPktOptionsCopy ( PktType &  pkt )

inline

Constructor.

Creates a copy of the initial options on a packet.

Parameters

pkt	Pointer to the packet.

Definition at line 1049 of file pkt.h.

~ScopedPktOptionsCopy()

template<typename PktType >

isc::dhcp::ScopedPktOptionsCopy< PktType >::~ScopedPktOptionsCopy ( )

inline

Destructor.

Restores the initial options on a packet.

Definition at line 1056 of file pkt.h.

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The documentation for this class was generated from the following file:

• pkt.h