exists */
template <class OtherPacket> OtherPacket next(NoThrow_t) const;
///< Get next packet in chain and cast to \a OtherPacket
- /**< \throws std::bad_cast if the next() packet is not of
- type \a OtherPacket
- \returns in - valid() packet if no next packet
- exists */
+ /**< \returns in - valid() packet if no next packet
+ exists or if next() packet is not of
+ type \a OtherPacket */
template <class OtherPacket> OtherPacket find() const;
///< Search chain forward for packet of type \a OtherPacket
/**< The search will start with the current packet.
packet exists */
template <class OtherPacket> OtherPacket prev(NoThrow_t) const;
///< Get previous packet in chain and cast to \a OtherPacket
- /**< \throws std::bad_cast, if the previous packet is not of
- type \a OtherPacket
- \returns in - valid() packet if no previous packet
- exists */
+ /**< \returns in - valid() packet if no previous packet
+ exists or if the previous packet is not of
+ type \a OtherPacket */
template <class OtherPacket> OtherPacket rfind() const;
///< Search chain backwards for packet of type \a OtherPacket
/**< The search will start with the current packet.
before.
\throws std::bad_cast if the current packet is not of
type \a OtherPacket */
+ template <class OtherPacket> OtherPacket as(NoThrow_t) const;
+ ///< Cast current packet to the given type
+ /**< This operations returns a handle to the same packet
+ header/interpreter however upcast to the given
+ ConcretePacket type which have been instantiated
+ before.
+ \warning You must make absolutely sure that the packet
+ is of the given type. If not, calling this member
+ crashes your program in a unkindly way. */
Packet append(Packet const & packet) const; ///< Append the given packet to \c this packet
/**< This operation will replace the payload section of \c
when using a packet in a boolean context. */
void finalizeThis(); ///< Update calculated fields
- /**< The finalize() fammily of members will update
+ /**< The finalize() family of members will update
calculated packet fields: checksums, size fields and so
on. This includes any field, which can be set from
other information in the packet. Each concrete packet
template <class Other>
void finalizeTo(); ///< Update calculated fields
- /**< The finalize() fammily of members will update
+ /**< The finalize() family of members will update
calculated packet fields: checksums, size fields and so
on. This includes any field, which can be set from
other information in the packet. Each concrete packet
\endcode */
void finalizeTo(Packet const & other); ///< Update calculated fields
- /**< The finalize() fammily of members will update
+ /**< The finalize() family of members will update
calculated packet fields: checksums, size fields and so
on. This includes any field, which can be set from
other information in the packet. Each concrete packet
unsigned long id() const; ///< Unique packet id
/**< Get a unique packet id. If two packets have the same
- id, they share the internal data representation.. */
+ id, they share the internal data representation. */
+
+ bool is_shared() const; ///< check if this packet shares data with any another packet handle.
+ /**< This method returns true if there is any other packet
+ handle pointing to any header in the packet chain. */
///@}
ConcretePacket(typename interpreter::ptr const & packet_);
- typename interpreter::ptr ptr() const;
+ interpreter * ptr() const;
friend class Packet;
friend class PacketInterpreter<PacketType>;