1 /* Copyright (c) 2015-2021. The SimGrid Team. All rights reserved. */
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. */
6 #ifndef SIMGRID_S4U_VM_HPP
7 #define SIMGRID_S4U_VM_HPP
9 #include <simgrid/forward.h>
10 #include <simgrid/s4u/Host.hpp>
11 #include <xbt/utility.hpp>
20 * A VM represents a virtual machine (or a container) that hosts actors.
21 * The total computing power that the contained actors can get is constrained to the virtual machine size.
24 class XBT_PUBLIC VirtualMachine : public s4u::Host {
25 vm::VirtualMachineImpl* const pimpl_vm_;
26 ~VirtualMachine() override;
29 explicit VirtualMachine(const std::string& name, Host* physical_host, int core_amount);
30 explicit VirtualMachine(const std::string& name, Host* physical_host, int core_amount, size_t ramsize);
34 VirtualMachine(VirtualMachine const&) = delete;
35 VirtualMachine& operator=(VirtualMachine const&) = delete;
38 // enum class State { ... }
39 XBT_DECLARE_ENUM_CLASS(State,
40 CREATED, /**< created, but not yet started */
42 SUSPENDED, /**< Suspend/resume does not involve disk I/O, so we assume there is no transition states. */
46 using state XBT_ATTRIB_DEPRECATED_v332("Please use VirtualMachine::State") = State;
49 vm::VirtualMachineImpl* get_vm_impl() const { return pimpl_vm_; }
54 void destroy() override;
57 VirtualMachine* set_pm(Host* pm);
58 size_t get_ramsize() const;
59 VirtualMachine* set_ramsize(size_t ramsize);
60 VirtualMachine* set_bound(double bound);
62 State get_state() const;
63 static xbt::signal<void(VirtualMachine const&)> on_start;
64 static xbt::signal<void(VirtualMachine const&)> on_started;
65 static xbt::signal<void(VirtualMachine const&)> on_shutdown;
66 static xbt::signal<void(VirtualMachine const&)> on_suspend;
67 static xbt::signal<void(VirtualMachine const&)> on_resume;
68 static xbt::signal<void(VirtualMachine const&)> on_migration_start;
69 static xbt::signal<void(VirtualMachine const&)> on_migration_end;
72 } // namespace simgrid