make Model::update_algo a constant field, set at initialization only

[simgrid.git] / include / simgrid / kernel / resource / Model.hpp

diff --git a/include/simgrid/kernel/resource/Model.hpp b/include/simgrid/kernel/resource/Model.hpp
index dc228ad..83076be 100644 (file)
--- a/include/simgrid/kernel/resource/Model.hpp
+++ b/include/simgrid/kernel/resource/Model.hpp
@@ -8,19 +8,6 @@
 
 #include <simgrid/kernel/resource/Action.hpp>
 
-extern "C" {
-
-/** @brief Possible update mechanisms */
-enum e_UM_t {
-  UM_FULL,     /**< Full update mechanism: the remaining time of every action is recomputed at each step */
-  UM_LAZY,     /**< Lazy update mechanism: only the modified actions get recomputed.
-                    It may be slower than full if your system is tightly coupled to the point where every action
-                    gets recomputed anyway. In that case, you'd better not try to be cleaver with lazy and go for
-                    a simple full update.  */
-  UM_UNDEFINED /**< Mechanism not defined */
-};
-}
-
 namespace simgrid {
 namespace kernel {
 namespace resource {
@@ -31,7 +18,17 @@ namespace resource {
  */
 class XBT_PUBLIC Model {
 public:
-  Model();
+  /** @brief Possible update mechanisms */
+  enum class UpdateAlgo {
+    Full, /**< Full update mechanism: the remaining time of every action is recomputed at each step */
+    Lazy  /**< Lazy update mechanism: only the modified actions get recomputed.
+                   It may be slower than full if your system is tightly coupled to the point where every action
+                   gets recomputed anyway. In that case, you'd better not try to be cleaver with lazy and go for
+                   a simple full update.  */
+  };
+
+  explicit Model(Model::UpdateAlgo algo);
+
   virtual ~Model();
 
   /** @brief Get the set of [actions](@ref Action) in *ready* state */
@@ -52,12 +49,11 @@ public:
   /** @brief Get the maxmin system of the current Model */
   lmm::System* get_maxmin_system() const { return maxmin_system_; }
 
-  /**
-   * @brief Get the update mechanism of the current Model
-   * @see e_UM_t
-   */
-  e_UM_t getUpdateMechanism() const { return update_mechanism_; }
-  void setUpdateMechanism(e_UM_t mechanism) { update_mechanism_ = mechanism; }
+  /** @brief Set the maxmin system of the current Model */
+  void set_maxmin_system(lmm::System* system) { maxmin_system_ = system; }
+
+  /** @brief Get the update mechanism of the current Model */
+  UpdateAlgo getUpdateMechanism() const { return update_algorithm_; }
 
   /** @brief Get Action heap */
   heap_type& getActionHeap() { return action_heap_; }
@@ -93,11 +89,9 @@ public:
    */
   virtual bool nextOccuringEventIsIdempotent() { return true; }
 
-protected:
-  lmm::System* maxmin_system_ = nullptr;
-
 private:
-  e_UM_t update_mechanism_        = UM_UNDEFINED;
+  lmm::System* maxmin_system_           = nullptr;
+  const UpdateAlgo update_algorithm_;
   Action::StateSet* ready_action_set_   = new Action::StateSet(); /**< Actions in state SURF_ACTION_READY */
   Action::StateSet* running_action_set_ = new Action::StateSet(); /**< Actions in state SURF_ACTION_RUNNING */
   Action::StateSet* failed_action_set_  = new Action::StateSet(); /**< Actions in state SURF_ACTION_FAILED */