1 /* Copyright (c) 2004-2018. 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/simix/ActorImpl.hpp"
8 #include "src/surf/HostImpl.hpp"
11 #include <unordered_map>
13 #ifndef VM_INTERFACE_HPP_
14 #define VM_INTERFACE_HPP_
16 #define GUESTOS_NOISE 100 // This value corresponds to the cost of the global action associated to the VM
17 // It corresponds to the cost of a VM running no tasks.
26 /** @ingroup SURF_vm_interface
27 * @brief SURF VM interface class
28 * @details A VM represent a virtual machine
30 class XBT_PUBLIC VirtualMachineImpl : public surf::HostImpl, public simgrid::xbt::Extendable<VirtualMachineImpl> {
31 friend simgrid::s4u::VirtualMachine;
34 explicit VirtualMachineImpl(s4u::VirtualMachine * piface, s4u::Host * host, int coreAmount, size_t ramsize);
35 ~VirtualMachineImpl();
37 /** @brief Suspend the VM */
38 virtual void suspend(simgrid::kernel::actor::ActorImpl* issuer);
40 /** @brief Resume the VM */
41 virtual void resume();
43 /** @brief Shutdown the VM */
44 virtual void shutdown(simgrid::kernel::actor::ActorImpl* issuer);
46 /** @brief Change the physical host on which the given VM is running */
47 virtual void setPm(s4u::Host* dest);
49 /** @brief Get the physical machine hosting the VM */
52 sg_size_t getRamsize() { return ramsize_; }
53 void setRamsize(sg_size_t ramsize) { ramsize_ = ramsize; }
55 virtual void setBound(double bound);
57 /* The vm object of the lower layer */
58 kernel::resource::Action* action_ = nullptr;
60 e_surf_vm_state_t getState();
61 void setState(e_surf_vm_state_t state);
62 static std::deque<s4u::VirtualMachine*> allVms_;
63 int coreAmount() { return coreAmount_; }
65 bool isMigrating = false;
69 /** @ingroup SURF_callbacks
70 * @brief Callbacks fired after VM creation. Signature: `void(VirtualMachine*)`
72 static simgrid::xbt::signal<void(simgrid::vm::VirtualMachineImpl*)> onVmCreation;
74 /** @ingroup SURF_callbacks
75 * @brief Callbacks fired after VM destruction. Signature: `void(VirtualMachine*)`
77 static simgrid::xbt::signal<void(simgrid::vm::VirtualMachineImpl*)> onVmDestruction;
79 /** @ingroup SURF_callbacks
80 * @brief Callbacks after VM State changes. Signature: `void(VirtualMachine*)`
82 static simgrid::xbt::signal<void(simgrid::vm::VirtualMachineImpl*)> onVmStateChange;
85 simgrid::s4u::Host* hostPM_;
88 e_surf_vm_state_t vmState_ = SURF_VM_STATE_CREATED;
94 /** @ingroup SURF_vm_interface
95 * @brief SURF VM model interface class
96 * @details A model is an object which handle the interactions between its Resources and its Actions
98 class XBT_PRIVATE VMModel : public surf::HostModel {
101 void ignoreEmptyVmInPmLMM() override{};
103 double next_occuring_event(double now) override;
104 void update_actions_state(double /*now*/, double /*delta*/) override{};
109 XBT_PUBLIC_DATA simgrid::vm::VMModel* surf_vm_model;
111 #endif /* VM_INTERFACE_HPP_ */