X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/9e9882ce69af88130c9047bf152c92e19acc805d..0c586d7f087b772253980cafd92796edcbd58c50:/include/simgrid/s4u/VirtualMachine.hpp

diff --git a/include/simgrid/s4u/VirtualMachine.hpp b/include/simgrid/s4u/VirtualMachine.hpp
index 94af590ce8..41be4d1974 100644
--- a/include/simgrid/s4u/VirtualMachine.hpp
+++ b/include/simgrid/s4u/VirtualMachine.hpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2015-2017. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2015-2022. 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. */
@@ -6,64 +6,100 @@
 #ifndef SIMGRID_S4U_VM_HPP
 #define SIMGRID_S4U_VM_HPP
 
-#include "simgrid/datatypes.h"
-#include "simgrid/s4u/Host.hpp"
-#include "simgrid/s4u/forward.hpp"
-
-enum e_surf_vm_state_t {
-  SURF_VM_STATE_CREATED, /**< created, but not yet started */
-  SURF_VM_STATE_RUNNING,
-  SURF_VM_STATE_SUSPENDED, /**< Suspend/resume does not involve disk I/O, so we assume there is no transition states. */
-  SURF_VM_STATE_DESTROYED
-};
+#include <simgrid/forward.h>
+#include <simgrid/s4u/Host.hpp>
+#include <xbt/utility.hpp>
 
 namespace simgrid {
-namespace vm {
-class VirtualMachineImpl;
-};
 namespace s4u {
 
+/** @brief Host extension for the VMs */
+class VmHostExt {
+public:
+  static xbt::Extension<s4u::Host, VmHostExt> EXTENSION_ID;
+
+  sg_size_t ramsize = 0;    /* available ramsize (0= not taken into account) */
+  bool overcommit   = true; /* Whether the host allows overcommiting more VM than the avail ramsize allows */
+  static void ensureVmExtInstalled();
+};
+
 /** @ingroup s4u_api
  *
  * @tableofcontents
  *
- * A VM is a virtual machine that contains actors. The total computing power that the contained
- * processes can get is constrained to the virtual machine size.
+ * A VM represents a virtual machine (or a container) that hosts actors.
+ * The total computing power that the contained actors can get is constrained to the virtual machine size.
  *
  */
-XBT_PUBLIC_CLASS VirtualMachine : public s4u::Host
-{
+class XBT_PUBLIC VirtualMachine : public s4u::Host {
+  kernel::resource::VirtualMachineImpl* const pimpl_vm_;
 
 public:
-  explicit VirtualMachine(const char* name, s4u::Host* hostPm, int coreAmount);
-  explicit VirtualMachine(const char* name, s4u::Host* hostPm, int coreAmount, size_t ramsize);
+  explicit VirtualMachine(const std::string& name, Host* physical_host, int core_amount);
+  explicit VirtualMachine(const std::string& name, Host* physical_host, int core_amount, size_t ramsize);
 
+#ifndef DOXYGEN
   // No copy/move
   VirtualMachine(VirtualMachine const&) = delete;
   VirtualMachine& operator=(VirtualMachine const&) = delete;
+#endif
 
-private:
-  virtual ~VirtualMachine();
-public:
+  // enum class State { ... }
+  XBT_DECLARE_ENUM_CLASS(State,
+    CREATED, /**< created, but not yet started */
+    RUNNING,
+    SUSPENDED, /**< Suspend/resume does not involve disk I/O, so we assume there is no transition states. */
+    DESTROYED
+  );
+#ifndef DOXYGEN
+  using state XBT_ATTRIB_DEPRECATED_v332("Please use VirtualMachine::State") = State;
+#endif
+
+  kernel::resource::VirtualMachineImpl* get_vm_impl() const { return pimpl_vm_; }
   void start();
   void suspend();
   void resume();
+  void shutdown();
+  void destroy() override;
 
-  bool isMigrating();
-
-  void getParameters(vm_params_t params);
-  void setParameters(vm_params_t params);
-  simgrid::s4u::Host* getPm();
-  size_t getRamsize();
-  void setRamsize(size_t ramsize);
-  void setBound(double bound);
+  Host* get_pm() const;
+  VirtualMachine* set_pm(Host* pm);
+  size_t get_ramsize() const;
+  VirtualMachine* set_ramsize(size_t ramsize);
+  VirtualMachine* set_bound(double bound);
 
-  e_surf_vm_state_t getState();
+  State get_state() const;
+  static void on_creation_cb(const std::function<void(VirtualMachine&)>& cb) { on_creation.connect(cb); }
+  static void on_start_cb(const std::function<void(VirtualMachine const&)>& cb) { on_start.connect(cb); }
+  static void on_started_cb(const std::function<void(VirtualMachine const&)>& cb) { on_started.connect(cb); }
+  static void on_shutdown_cb(const std::function<void(VirtualMachine const&)>& cb) { on_shutdown.connect(cb); }
+  static void on_suspend_cb(const std::function<void(VirtualMachine const&)>& cb) { on_suspend.connect(cb); }
+  static void on_resume_cb(const std::function<void(VirtualMachine const&)>& cb) { on_resume.connect(cb); }
+  static void on_destruction_cb(const std::function<void(VirtualMachine const&)>& cb) { on_destruction.connect(cb); }
+  static void on_migration_start_cb(const std::function<void(VirtualMachine const&)>& cb)
+  {
+    on_migration_start.connect(cb);
+  }
+  static void on_migration_end_cb(const std::function<void(VirtualMachine const&)>& cb)
+  {
+    on_migration_end.connect(cb);
+  }
+#ifndef DOXYGEN
+  /* FIXME the signals should be private */
+  static xbt::signal<void(VirtualMachine const&)> on_migration_start;
+  static xbt::signal<void(VirtualMachine const&)> on_migration_end;
+  static xbt::signal<void(VirtualMachine const&)> on_destruction;
+#endif
 
-  /* FIXME: protect me */
-  simgrid::vm::VirtualMachineImpl* pimpl_vm_ = nullptr;
+private:
+  static xbt::signal<void(VirtualMachine&)> on_creation;
+  static xbt::signal<void(VirtualMachine const&)> on_start;
+  static xbt::signal<void(VirtualMachine const&)> on_started;
+  static xbt::signal<void(VirtualMachine const&)> on_shutdown;
+  static xbt::signal<void(VirtualMachine const&)> on_suspend;
+  static xbt::signal<void(VirtualMachine const&)> on_resume;
 };
-}
-} // namespace simgrid::s4u
+} // namespace s4u
+} // namespace simgrid
 
-#endif /* SIMGRID_S4U_HOST_HPP */
+#endif