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#include <systemc>
#include "utils/log.h"
using sc_core::sc_export;
using sc_core::sc_interface;
using sc_core::sc_module;
using sc_core::sc_module_name;
using sc_core::SC_NS;
using sc_core::sc_port;
// -- INTERFACES ---------------------------------------------------------------
struct fwd_if : sc_interface {
virtual void fwd(const char* msg) = 0;
};
struct bwd_if : sc_interface {
virtual void bwd(const char* msg) = 0;
};
// -- INITIATOR SOCKET ---------------------------------------------------------
// An initiator socket provides its owner access to a FWD_IF implementation. The
// initiator socket itself must be bound against a BWD_IF implementation,
// offering the BWD_IF implementation to the target socket that can be bound
// against the initiator socket.
//
// Effectively the initiator socket is a sc_port / sc_export pair, using the
// sc_port to access the FWD_IF and the sc_export to offer the BWD_IF
// implementation.
struct initiator_socket : sc_export<bwd_if> {
sc_port<fwd_if> p_fwd;
fwd_if* operator->() {
return p_fwd.operator->();
}
};
// -- TARGET SOCKET ------------------------------------------------------------
// A target socket provides its owner access to a BWD_IF implementation. The
// target socket itself must be bound against a FWD_IF implementation,
// offering the FWD_IF implementation to the initiator socket that can be bound
// against the target socket.
//
// Effectively the target socket is a sc_port / sc_export pair, using the
// sc_port to access the BWD_IF and the sc_export to offer the FWD_IF
// implementation.
struct target_socket : sc_export<fwd_if> {
sc_port<bwd_if> p_bwd;
void bind_init(initiator_socket& init) {
// Bind the sc_port / sc_export pairs between the initiator and target
// socket.
// Initiator:sc_port -> Target:sc_export.
init.p_fwd(*this);
// Target:sc_port -> Initiator:sc_export.
p_bwd(init);
}
bwd_if* operator->() {
return p_bwd.operator->();
}
};
// -- INITIATOR ----------------------------------------------------------------
struct initiator : public sc_module, public bwd_if {
SC_HAS_PROCESS(initiator);
initiator_socket p_sock;
explicit initiator(sc_module_name nm) : sc_module(std::move(nm)) {
p_sock(*this);
SC_THREAD(work);
}
private:
virtual void bwd(const char* msg) override {
LOGM("%s", msg);
}
void work() {
sc_core::wait(10, SC_NS);
p_sock->fwd("moose");
}
};
// -- TARGET -------------------------------------------------------------------
struct target : public sc_module, public fwd_if {
SC_HAS_PROCESS(target);
target_socket p_sock;
explicit target(sc_module_name nm) : sc_module(std::move(nm)) {
p_sock(*this);
}
private:
virtual void fwd(const char* msg) override {
LOGM("%s", msg);
p_sock->bwd("meeh");
}
};
// -- SC_MAIN ------------------------------------------------------------------
extern "C" int sc_main(int, char*[]) {
initiator I("initiator");
target T("target");
// Bind the initiator and target sockets.
T.p_sock.bind_init(I.p_sock);
sc_core::sc_start();
return 0;
}
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