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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
*/
#include "systemc/core/module.hh"
#include <cassert>
#include "base/logging.hh"
#include "systemc/ext/core/messages.hh"
#include "systemc/ext/core/sc_export.hh"
#include "systemc/ext/core/sc_port.hh"
#include "systemc/ext/utils/sc_report_handler.hh"
namespace sc_gem5
{
namespace
{
std::list<Module *> _modules;
Module *_new_module;
} // anonymous namespace
UniqueNameGen globalNameGen;
Module::Module(const char *name) :
_name(name), _sc_mod(nullptr), _obj(nullptr), _ended(false),
_deprecatedConstructor(false), bindingIndex(0)
{
panic_if(_new_module, "Previous module not finished.\n");
_new_module = this;
}
Module::~Module()
{
// Aborted module construction?
if (_new_module == this)
_new_module = nullptr;
// Attempt to pop now in case we're at the top of the stack, so that
// a stale pointer to us isn't left floating around for somebody to trip
// on.
pop();
allModules.remove(this);
}
void
Module::finish(Object *this_obj)
{
assert(!_obj);
_obj = this_obj;
_modules.push_back(this);
pushParentModule(this);
try {
_new_module = nullptr;
// This is called from the constructor of this_obj, so it can't use
// dynamic cast.
sc_mod(static_cast<::sc_core::sc_module *>(this_obj->sc_obj()));
allModules.emplace_back(this);
} catch (...) {
popParentModule();
throw;
}
}
void
Module::pop()
{
if (_modules.empty() || _modules.back() != this)
return;
panic_if(_new_module, "Pop with unfinished module.\n");
_modules.pop_back();
popParentModule();
}
void
Module::bindPorts(std::vector<const ::sc_core::sc_bind_proxy *> &proxies)
{
panic_if(proxies.size() > ports.size(),
"Trying to bind %d interfaces/ports to %d ports.\n",
proxies.size(), ports.size());
auto proxyIt = proxies.begin();
auto portIt = ports.begin();
portIt += bindingIndex;
for (; proxyIt != proxies.end(); proxyIt++, portIt++) {
auto proxy = *proxyIt;
auto port = *portIt;
if (proxy->interface())
port->vbind(*proxy->interface());
else
port->vbind(*proxy->port());
}
bindingIndex += proxies.size();
}
void
Module::beforeEndOfElaboration()
{
pushParentModule(this);
try {
_sc_mod->before_end_of_elaboration();
for (auto e: exports)
e->before_end_of_elaboration();
} catch (...) {
popParentModule();
throw;
}
popParentModule();
}
void
Module::endOfElaboration()
{
if (_deprecatedConstructor && !_ended) {
std::string msg = csprintf("module '%s'", name());
SC_REPORT_WARNING(sc_core::SC_ID_END_MODULE_NOT_CALLED_, msg.c_str());
}
pushParentModule(this);
try {
_sc_mod->end_of_elaboration();
for (auto e: exports)
e->end_of_elaboration();
} catch (...) {
popParentModule();
throw;
}
popParentModule();
}
void
Module::startOfSimulation()
{
pushParentModule(this);
try {
_sc_mod->start_of_simulation();
for (auto e: exports)
e->start_of_simulation();
} catch (...) {
popParentModule();
throw;
}
popParentModule();
}
void
Module::endOfSimulation()
{
pushParentModule(this);
try {
_sc_mod->end_of_simulation();
for (auto e: exports)
e->end_of_simulation();
} catch(...) {
popParentModule();
throw;
}
popParentModule();
}
Module *
currentModule()
{
if (_modules.empty())
return nullptr;
return _modules.back();
}
Module *
newModuleChecked()
{
if (!_new_module)
SC_REPORT_ERROR(sc_core::SC_ID_MODULE_NAME_STACK_EMPTY_, "");
return _new_module;
}
Module *
newModule()
{
return _new_module;
}
std::list<Module *> allModules;
} // namespace sc_gem5