#ifndef SMPI_F2C_HPP_INCLUDED
#define SMPI_F2C_HPP_INCLUDED
+#include <memory>
#include <unordered_map>
namespace simgrid{
class F2C {
private:
+ using f2c_lookup_type = std::unordered_map<unsigned int, F2C*>;
+
// We use a single lookup table for every type.
// Beware of collisions if id in mpif.h is not unique
- static std::unordered_map<unsigned int, F2C*>* f2c_lookup_;
+ static std::unique_ptr<f2c_lookup_type> f2c_lookup_;
static int f2c_id_;
- static std::unordered_map<unsigned int, F2C*>::size_type num_default_handles_;
+ static f2c_lookup_type::size_type num_default_handles_;
int my_f2c_id_ = -1;
protected:
- static void set_f2c_lookup(std::unordered_map<unsigned int, F2C*>* map) { f2c_lookup_ = map; }
+ static void allocate_lookup()
+ {
+ if (not f2c_lookup_)
+ f2c_lookup_ = std::make_unique<f2c_lookup_type>();
+ }
static int f2c_id() { return f2c_id_; }
static void f2c_id_increment() { f2c_id_++; }
public:
- static void delete_lookup() { delete f2c_lookup_; f2c_lookup_ = nullptr ;}
- static std::unordered_map<unsigned int, F2C*>* lookup() { return f2c_lookup_; }
+ static f2c_lookup_type* lookup() { return f2c_lookup_.get(); }
F2C();
virtual ~F2C() = default;
// For the default one, the MPI_*_NULL returned is assumed to be NULL.
static F2C* f2c(int id);
static void finish_initialization() { num_default_handles_ = f2c_lookup_->size(); }
- static std::unordered_map<unsigned int, F2C*>::size_type get_num_default_handles() { return num_default_handles_;}
+ static f2c_lookup_type::size_type get_num_default_handles() { return num_default_handles_; }
};
}
namespace simgrid{
namespace smpi{
-std::unordered_map<unsigned int, F2C*>* F2C::f2c_lookup_ = nullptr;
+std::unique_ptr<F2C::f2c_lookup_type> F2C::f2c_lookup_ = nullptr;
int F2C::f2c_id_ = 0;
-std::unordered_map<unsigned int, F2C*>::size_type F2C::num_default_handles_ = 0;
+F2C::f2c_lookup_type::size_type F2C::num_default_handles_ = 0;
// Keep it non trivially-constructible, or it will break MC+smpi on FreeBSD with Clang (don't ask why)
F2C::F2C() = default;
int F2C::add_f()
{
- if (f2c_lookup_ == nullptr)
- f2c_lookup_ = new std::unordered_map<unsigned int, F2C*>();
+ allocate_lookup();
my_f2c_id_ = f2c_id();
(*f2c_lookup_)[my_f2c_id_] = this;
int F2C::c2f()
{
- if (f2c_lookup_ == nullptr) {
- f2c_lookup_ = new std::unordered_map<unsigned int, F2C*>();
- }
+ allocate_lookup();
if(my_f2c_id_==-1)
/* this function wasn't found, add it */
F2C* F2C::f2c(int id)
{
- if (f2c_lookup_ == nullptr)
- f2c_lookup_ = new std::unordered_map<unsigned int, F2C*>();
+ allocate_lookup();
if(id >= 0){
auto comm = f2c_lookup_->find(id);