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Hi,
First I am a beginner of C++ language.
I want to handle the application data of Packet class(AppData
* data_)
to insert other information and then send to the
target.
In change history, I found that data_ was changed from
unsigned char * to AppData*.
In ns manual, there was no update explanation of this
variable.
If it was previous version, I counld handle the data_
well.
But I can handle the AppData * type variable.
Please let me know how to handle AppData * type
variable
such as the functions like to get data_ or to set my
application data(unsigned char * type variable)
to data_.
In change history, they said, "thus we are able to avoid
marshalling of application-level data. To provide backward compatibility,
PacketData is derived from AppData and is the default packet data to be created
when Packet::allocdata() is called. It provides the same unsigned char array as
before. "
I can not understand the memeber function "accessdata()"
of Packet class.
******************************************
inline unsigned char* accessdata() const {
if (data_ == 0) return 0; assert(data_->type() == PACKET_DATA); return (((PacketData*)data_)->data()); ******************************************
Could you explain this more? Or Is there any manual of
this?
I already use the member function "allocdata" to assigned the
address to data_ which may be the member data of PacketData class.
Your prompt response will be very appreciated.
Reguards,
Byeongsoo Yun.
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