The following predefined object classes in the adf namespace are used to define the connectivity of packet
streams.
template <int nway> class pktsplit { ... }
template <int nway> class pktmerge { ... }
template <int nway> class pktorderedmerge { ... }Scope
Objects of type pktsplit<n> and pktmerge<n> can be declared as member variables in a
user-defined graph type (i.e., inside a class that inherits from graph). The template parameter n must be a compile-time constant positive integer denoting the n-way
degree of split or merge. These objects behave like ordinary nodes of the graph with
input and output connections, but are only used for explicit packet routing.
pktorderedmerge is similar to pktmergeexcept that pktorderedmerge merges packets in deterministic order from packet
0 to n-1
recursively.
Member Functions
static pktsplit<nway> & create();
static pktmerge<nway> & create();
static pktorderedmerge<nway> & create();The static create method for these classes work in
the same way as kernel create method. The degree of
split or merge is already specified in the template variable declaration.
Member Variables
std::vector<port<input>> in;This variable provides access to the logical inputs of the
node. There is only one input for pktsplit nodes.
For pktmerge and pktorderedmerge nodes the i'th index selects the i’th input port.
std::vector<port<output>> out;This variable provides access to the logical outputs of the
node. There is only one output for pktmerge and
pktorderedmerge nodes. For pktsplit nodes the i'th index selects the i’th output
port.