X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a8f0008b377d7e1c7e7cb3bce1f57c97606d8054..cd8e28ce07a13bbeff60a2338e7b3fc3088791d7:/src/surf/cpu_interface.hpp

diff --git a/src/surf/cpu_interface.hpp b/src/surf/cpu_interface.hpp
index 4b273c70a5..0215897243 100644
--- a/src/surf/cpu_interface.hpp
+++ b/src/surf/cpu_interface.hpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2004-2019. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2004-2020. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
@@ -10,7 +10,6 @@
 #include "simgrid/kernel/resource/Resource.hpp"
 #include "simgrid/s4u/Host.hpp"
 #include "src/kernel/lmm/maxmin.hpp"
-#include "src/kernel/resource/profile/trace_mgr.hpp"
 
 #include <list>
 
@@ -48,6 +47,8 @@ public:
  * Resource *
  ************/
 
+class CpuAction;
+
 /** @ingroup SURF_cpu_interface
 * @brief SURF cpu resource interface class
 * @details A Cpu represent a cpu associated to a host
@@ -55,8 +56,10 @@ public:
 class XBT_PUBLIC Cpu : public Resource {
   int core_count_ = 1;
   s4u::Host* host_;
-  int pstate_ = 0;                             /*< Current pstate (index in the speed_per_pstate_)*/
-  const std::vector<double> speed_per_pstate_; /*< List of supported CPU capacities (pstate related) */
+  int pstate_ = 0;                       /*< Current pstate (index in the speed_per_pstate_)*/
+  std::vector<double> speed_per_pstate_; /*< List of supported CPU capacities (pstate related). Not 'const' because VCPU
+                                            get modified on migration */
+  friend simgrid::vm::VirtualMachineImpl; // Resets the VCPU
 
 public:
   /**
@@ -90,7 +93,7 @@ public:
    * @param size The value of the processing amount (in flop) needed to process
    * @return The CpuAction corresponding to the processing
    */
-  virtual Action* execution_start(double size) = 0;
+  virtual CpuAction* execution_start(double size) = 0;
 
   /**
    * @brief Execute some quantity of computation on more than one core
@@ -99,7 +102,7 @@ public:
    * @param requested_cores The desired amount of cores. Must be >= 1
    * @return The CpuAction corresponding to the processing
    */
-  virtual Action* execution_start(double size, int requested_cores) = 0;
+  virtual CpuAction* execution_start(double size, int requested_cores) = 0;
 
   /**
    * @brief Make a process sleep for duration (in seconds)
@@ -107,7 +110,7 @@ public:
    * @param duration The number of seconds to sleep
    * @return The CpuAction corresponding to the sleeping
    */
-  virtual Action* sleep(double duration) = 0;
+  virtual CpuAction* sleep(double duration) = 0;
 
   /** @brief Get the amount of cores */
   virtual int get_core_count();
@@ -127,6 +130,13 @@ protected:
   /** @brief Take speed changes (either load or max) into account */
   virtual void on_speed_change();
 
+  /** Reset most characteristics of this CPU to the one of that CPU.
+   *
+   * Used to reset a VCPU when its VM migrates to another host, so it only resets the fields that should be in this
+   *case.
+   **/
+  virtual void reset_vcpu(Cpu* that);
+
 public:
   /** @brief Get the available speed ratio, between 0 and 1.
    *