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Saving id and pointer to c++ object. Object is valid only if both id and pointer match the pair saved in the corresponding map in kernel/rtlil.cc. Otherwise, the object was destroyed in c++ and should not be accessed any more

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This commit is contained in:
Benedikt Tutzer 2018-08-01 10:27:35 +02:00 • committed by Benedikt Tutzer
parent 79d7e608cf
commit 416946a16a
1 changed files with 29 additions and 8 deletions
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37
kernel/python_wrappers.cc
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@ -23,15 +23,20 @@ namespace YOSYS_PYTHON {
struct Cell
{
unsigned int id;
Yosys::RTLIL::Cell* ref_obj;
Cell(Yosys::RTLIL::Cell* ref)
{
this->id = ref->hashidx_;
this->ref_obj = ref;
}
Yosys::RTLIL::Cell* get_cpp_obj() const
{
return Yosys::RTLIL::Cell::get_all_cells()->at(this->id);
Yosys::RTLIL::Cell* ret = Yosys::RTLIL::Cell::get_all_cells()->at(this->id);
if(ret != NULL && ret == this->ref_obj)
return ret;
return NULL;
}
};
@ -47,15 +52,20 @@ namespace YOSYS_PYTHON {
struct Wire
{
unsigned int id;
Yosys::RTLIL::Wire* ref_obj;
Wire(Yosys::RTLIL::Wire* ref)
{
this->id = ref->hashidx_;
this->ref_obj = ref;
}
Yosys::RTLIL::Wire* get_cpp_obj() const
{
return Yosys::RTLIL::Wire::get_all_wires()->at(this->id);
Yosys::RTLIL::Wire* ret = Yosys::RTLIL::Wire::get_all_wires()->at(this->id);
if(ret != NULL && ret == this->ref_obj)
return ret;
return NULL;
}
};
@ -71,15 +81,20 @@ namespace YOSYS_PYTHON {
struct Module
{
unsigned int id;
Yosys::RTLIL::Module* ref_obj;
Module(Yosys::RTLIL::Module* ref)
{
this->id = ref->hashidx_;
this->ref_obj = ref;
}
Yosys::RTLIL::Module* get_cpp_obj() const
{
return Yosys::RTLIL::Module::get_all_modules()->at(this->id);
Yosys::RTLIL::Module* ret = Yosys::RTLIL::Module::get_all_modules()->at(this->id);
if(ret != NULL && ret == this->ref_obj)
return ret;
return NULL;
}
boost::python::list get_cells()
@ -122,22 +137,28 @@ namespace YOSYS_PYTHON {
struct Design
{
unsigned int hashid;
unsigned int id;
Yosys::RTLIL::Design* ref_obj;
Design(unsigned int hashid)
{
this->hashid = hashid;
this->id = hashid;
this->ref_obj = Yosys::RTLIL::Design::get_all_designs()->at(this->id);
}
Design()
{
Yosys::RTLIL::Design* new_design = new Yosys::RTLIL::Design();
this->hashid = new_design->hashidx_;
this->id = new_design->hashidx_;
this->ref_obj = new_design;
}
Yosys::RTLIL::Design* get_cpp_obj()
{
return Yosys::RTLIL::Design::get_all_designs()->at(hashid);
Yosys::RTLIL::Design* ret = Yosys::RTLIL::Design::get_all_designs()->at(this->id);
if(ret != NULL && ret == this->ref_obj)
return ret;
return NULL;
}
boost::python::list get_modules()
@ -264,7 +285,7 @@ namespace YOSYS_PYTHON {
std::ostream &operator<<(std::ostream &ostr, const Design &design)
{
ostr << "Design with id " << design.hashid;
ostr << "Design with id " << design.id;
return ostr;
}