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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_PORT_HH__
#define __SYSTEMC_EXT_CORE_SC_PORT_HH__
#include <vector>
#include "../utils/sc_report_handler.hh"
#include "sc_module.hh" // for sc_gen_unique_name
#include "sc_object.hh"
namespace sc_gem5
{
class BindInfo;
class Module;
class PendingSensitivityPort;
};
namespace sc_core
{
class sc_interface;
enum sc_port_policy
{
SC_ONE_OR_MORE_BOUND, // Default
SC_ZERO_OR_MORE_BOUND,
SC_ALL_BOUND
};
class sc_port_base : public sc_object
{
public:
sc_port_base(const char *name, int n, sc_port_policy p);
void warn_unimpl(const char *func) const;
int maxSize() const;
int size() const;
protected:
// Implementation defined, but depended on by the tests.
void bind(sc_interface &);
void bind(sc_port_base &);
friend class ::sc_gem5::Module;
// Implementation defined, but depended on by the tests.
virtual int vbind(sc_interface &) = 0;
virtual int vbind(sc_port_base &) = 0;
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;
private:
friend class ::sc_gem5::PendingSensitivityPort;
friend class ::sc_gem5::Kernel;
void _gem5Finalize();
virtual sc_interface *_gem5Interface(int n) const = 0;
virtual void _gem5AddInterface(sc_interface *i) = 0;
std::vector<::sc_gem5::BindInfo *> _gem5BindInfo;
int _maxSize;
int _size;
bool finalized;
};
template <class IF>
class sc_port_b : public sc_port_base
{
public:
void operator () (IF &i) { bind(i); }
void operator () (sc_port_b<IF> &p) { bind(p); }
virtual void bind(IF &i) { sc_port_base::bind(i); }
virtual void bind(sc_port_b<IF> &p) { sc_port_base::bind(p); }
IF *
operator -> ()
{
sc_assert(!_interfaces.empty());
return _interfaces[0];
}
const IF *
operator -> () const
{
sc_assert(!_interfaces.empty());
return _interfaces[0];
}
IF *
operator [] (int n)
{
sc_assert(_interfaces.size() > n);
return _interfaces[n];
}
const IF *
operator [] (int n) const
{
sc_assert(_interfaces.size() > n);
return _interfaces[n];
}
sc_interface *
get_interface()
{
sc_assert(!_interfaces.empty());
return _interfaces[0];
}
const sc_interface *
get_interface() const
{
sc_assert(!_interfaces.empty());
return _interfaces[0];
}
protected:
void before_end_of_elaboration() {}
void end_of_elaboration() {}
void start_of_simulation() {}
void end_of_simulation() {}
explicit sc_port_b(int n, sc_port_policy p) :
sc_port_base(sc_gen_unique_name("port"), n, p)
{}
sc_port_b(const char *name, int n, sc_port_policy p) :
sc_port_base(name, n, p)
{}
virtual ~sc_port_b() {}
// Implementation defined, but depended on by the tests.
int
vbind(sc_interface &i)
{
IF *interface = dynamic_cast<IF *>(&i);
if (!interface)
return 2;
sc_port_base::bind(*interface);
return 0;
}
int
vbind(sc_port_base &pb)
{
sc_port_b<IF> *p = dynamic_cast<sc_port_b<IF> *>(&pb);
if (!p)
return 2;
sc_port_base::bind(*p);
return 0;
}
private:
std::vector<IF *> _interfaces;
sc_interface *
_gem5Interface(int n) const
{
sc_assert(_interfaces.size() > n);
return _interfaces[n];
}
void
_gem5AddInterface(sc_interface *i)
{
IF *interface = dynamic_cast<IF *>(i);
sc_assert(interface);
_interfaces.push_back(interface);
}
// Disabled
sc_port_b() {}
sc_port_b(const sc_port_b<IF> &) {}
sc_port_b<IF> &operator = (const sc_port_b<IF> &) { return *this; }
};
template <class IF, int N=1, sc_port_policy P=SC_ONE_OR_MORE_BOUND>
class sc_port : public sc_port_b<IF>
{
public:
sc_port() : sc_port_b<IF>(N, P) {}
explicit sc_port(const char *name) : sc_port_b<IF>(name, N, P) {}
virtual ~sc_port() {}
// Deprecated binding constructors.
explicit sc_port(const IF &interface) : sc_port_b<IF>(N, P)
{
this->warn_unimpl(__PRETTY_FUNCTION__);
// Should warn that these are deprecated. See Accellera sc_port.h.
sc_port_b<IF>::bind(const_cast<IF &>(interface));
}
sc_port(const char *name, const IF &interface) : sc_port_b<IF>(name, N, P)
{
this->warn_unimpl(__PRETTY_FUNCTION__);
// Should warn that these are deprecated. See Accellera sc_port.h.
sc_port_b<IF>::bind(const_cast<IF &>(interface));
}
explicit sc_port(sc_port_b<IF> &parent) : sc_port_b<IF>(N, P)
{
this->warn_unimpl(__PRETTY_FUNCTION__);
// Should warn that these are deprecated. See Accellera sc_port.h.
sc_port_b<IF>::bind(parent);
}
sc_port(const char *name, sc_port_b<IF> &parent) :
sc_port_b<IF>(name, N, P)
{
this->warn_unimpl(__PRETTY_FUNCTION__);
// Should warn that these are deprecated. See Accellera sc_port.h.
sc_port_b<IF>::bind(parent);
}
explicit sc_port(sc_port<IF, N, P> &parent) : sc_port_b<IF>(N, P)
{
this->warn_unimpl(__PRETTY_FUNCTION__);
// Should warn that these are deprecated. See Accellera sc_port.h.
sc_port_b<IF>::bind(parent);
}
sc_port(const char *name, sc_port<IF, N, P> &parent) :
sc_port_b<IF>(name, N, P)
{
this->warn_unimpl(__PRETTY_FUNCTION__);
// Should warn that these are deprecated. See Accellera sc_port.h.
sc_port_b<IF>::bind(parent);
}
virtual const char *kind() const { return "sc_port"; }
private:
// Disabled
sc_port(const sc_port<IF, N, P> &) {}
sc_port<IF, N, P> &operator = (const sc_port<IF, N, P> &) { return *this; }
};
} // namespace sc_core
#endif //__SYSTEMC_EXT_CORE_SC_PORT_HH__
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