src/smpi/internals/smpi_static_variables.cpp

   1 /* Copyright (c) 2011-2018. The SimGrid Team. All rights reserved.          */
   2
   3 /* This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the license (GNU LGPL) which comes with this package. */
   5
   6 #include "private.hpp"
   7 #include <stack>
   8
   9 struct s_smpi_static_t {
  10   void *ptr;
  11   void_f_pvoid_t free_fn;
  12 };
  13
  14 /**
  15  * \brief Holds a reference to all static variables that were registered
  16  *        via smpi_register_static(). This helps to free them when
  17  *        SMPI shuts down.
  18  */
  19 static std::stack<s_smpi_static_t> registered_static_variables_stack;
  20
  21 void smpi_register_static(void* arg, void_f_pvoid_t free_fn) {
  22   s_smpi_static_t elm { arg, free_fn };
  23   registered_static_variables_stack.push(elm);
  24 }
  25
  26 void smpi_free_static() {
  27   while (not registered_static_variables_stack.empty()) {
  28     s_smpi_static_t elm = registered_static_variables_stack.top();
  29     elm.free_fn(elm.ptr);
  30     registered_static_variables_stack.pop();
  31   }
  32 }