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/*
* Copyright 2018 Google, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
*/
#ifndef __SYSTEMC_EXT_CORE_SC_EXPORT_HH__
#define __SYSTEMC_EXT_CORE_SC_EXPORT_HH__
#include "../channel/messages.hh"
#include "../utils/sc_report_handler.hh"
#include "sc_module.hh" // for sc_gen_unique_name
#include "sc_object.hh"
namespace sc_core
{
class sc_interface;
class sc_export_base : public sc_object
{
public:
sc_export_base(const char *n);
~sc_export_base();
virtual sc_interface *get_iterface() = 0;
virtual const sc_interface *get_interface() const = 0;
protected:
friend class sc_gem5::Module;
virtual void before_end_of_elaboration() = 0;
virtual void end_of_elaboration() = 0;
virtual void start_of_simulation() = 0;
virtual void end_of_simulation() = 0;
};
template <class IF>
class sc_export : public sc_export_base
{
public:
sc_export() :
sc_export_base(sc_gen_unique_name("export")), interface(nullptr)
{}
explicit sc_export(const char *n) :
sc_export_base(n), interface(nullptr)
{}
virtual ~sc_export() {}
virtual const char *kind() const { return "sc_export"; }
void operator () (IF &i) { bind(i); }
virtual void
bind(IF &i)
{
if (interface) {
SC_REPORT_ERROR(SC_ID_SC_EXPORT_ALREADY_BOUND_, name());
return;
}
interface = &i;
}
operator IF & ()
{
if (!interface)
SC_REPORT_ERROR(SC_ID_SC_EXPORT_HAS_NO_INTERFACE_, name());
return *interface;
}
operator const IF & () const { return *interface; }
IF *
operator -> ()
{
if (!interface)
SC_REPORT_ERROR(SC_ID_SC_EXPORT_HAS_NO_INTERFACE_, name());
return interface;
}
const IF *
operator -> () const
{
if (!interface)
SC_REPORT_ERROR(SC_ID_SC_EXPORT_HAS_NO_INTERFACE_, name());
return interface;
}
sc_interface *get_iterface() override { return interface; }
const sc_interface *get_interface() const override { return interface; }
protected:
void before_end_of_elaboration() {}
void
end_of_elaboration()
{
if (!interface) {
std::string msg = "export not bound: export '";
msg = msg + name() + "' (" + kind() + ")";
SC_REPORT_ERROR("(E109) complete binding failed", msg.c_str());
}
}
void start_of_simulation() {}
void end_of_simulation() {}
private:
IF *interface;
// Disabled
sc_export(const sc_export<IF> &);
sc_export<IF> &operator = (const sc_export<IF> &);
};
} // namespace sc_core
#endif //__SYSTEMC_EXT_CORE_SC_EXPORT_HH__
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