1 /* Copyright (c) 2004-2019. 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 #include "simgrid/s4u/VirtualMachine.hpp"
7 #include "src/kernel/actor/ActorImpl.hpp"
8 #include "src/surf/HostImpl.hpp"
11 #include <unordered_map>
13 #ifndef VM_INTERFACE_HPP_
14 #define VM_INTERFACE_HPP_
23 /** @ingroup SURF_vm_interface
24 * @brief SURF VM interface class
25 * @details A VM represent a virtual machine
27 class XBT_PUBLIC VirtualMachineImpl : public surf::HostImpl, public simgrid::xbt::Extendable<VirtualMachineImpl> {
28 friend simgrid::s4u::VirtualMachine;
31 explicit VirtualMachineImpl(s4u::VirtualMachine* piface, s4u::Host* host, int core_amount, size_t ramsize);
32 ~VirtualMachineImpl();
34 /** @brief Callbacks fired after VM creation. Signature: `void(VirtualMachineImpl&)` */
35 static xbt::signal<void(simgrid::vm::VirtualMachineImpl&)> on_creation;
36 /** @brief Callbacks fired after VM destruction. Signature: `void(VirtualMachineImpl const&)` */
37 static xbt::signal<void(simgrid::vm::VirtualMachineImpl const&)> on_destruction;
39 virtual void suspend(kernel::actor::ActorImpl* issuer);
40 virtual void resume();
41 virtual void shutdown(kernel::actor::ActorImpl* issuer);
43 /** @brief Change the physical host on which the given VM is running */
44 virtual void set_physical_host(s4u::Host* dest);
45 /** @brief Get the physical host on which the given VM is running */
46 s4u::Host* get_physical_host() { return physical_host_; }
48 sg_size_t get_ramsize() { return ramsize_; }
49 void set_ramsize(sg_size_t ramsize) { ramsize_ = ramsize; }
51 s4u::VirtualMachine::state get_state() { return vm_state_; }
52 void set_state(s4u::VirtualMachine::state state) { vm_state_ = state; }
54 int get_core_amount() { return core_amount_; }
56 virtual void set_bound(double bound);
58 /* The vm object of the lower layer */
59 kernel::resource::Action* action_ = nullptr;
60 static std::deque<s4u::VirtualMachine*> allVms_;
61 bool is_migrating_ = false;
62 int active_tasks_ = 0;
64 void update_action_weight();
67 s4u::Host* physical_host_;
71 s4u::VirtualMachine::state vm_state_ = s4u::VirtualMachine::state::CREATED;
77 /** @ingroup SURF_vm_interface
78 * @brief SURF VM model interface class
79 * @details A model is an object which handle the interactions between its Resources and its Actions
81 class XBT_PRIVATE VMModel : public surf::HostModel {
85 double next_occurring_event(double now) override;
86 void update_actions_state(double /*now*/, double /*delta*/) override{};
91 XBT_PUBLIC_DATA simgrid::vm::VMModel* surf_vm_model;
93 #endif /* VM_INTERFACE_HPP_ */