1 /* Copyright (c) 2004-2016. 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"
12 #ifndef VM_INTERFACE_HPP_
13 #define VM_INTERFACE_HPP_
15 #define GUESTOS_NOISE 100 // This value corresponds to the cost of the global action associated to the VM
16 // It corresponds to the cost of a VM running no tasks.
25 class XBT_PRIVATE VMModel;
26 XBT_PUBLIC_CLASS VirtualMachineImpl; // Made visible to the Java plugin
32 /** @ingroup SURF_callbacks
33 * @brief Callbacks fired after VM creation. Signature: `void(VirtualMachine*)`
35 extern XBT_PRIVATE simgrid::xbt::signal<void(simgrid::vm::VirtualMachineImpl*)> onVmCreation;
37 /** @ingroup SURF_callbacks
38 * @brief Callbacks fired after VM destruction. Signature: `void(VirtualMachine*)`
40 extern XBT_PRIVATE simgrid::xbt::signal<void(simgrid::vm::VirtualMachineImpl*)> onVmDestruction;
42 /** @ingroup SURF_callbacks
43 * @brief Callbacks after VM State changes. Signature: `void(VirtualMachine*)`
45 extern XBT_PRIVATE simgrid::xbt::signal<void(simgrid::vm::VirtualMachineImpl*)> onVmStateChange;
51 /** @ingroup SURF_vm_interface
52 * @brief SURF VM interface class
53 * @details A VM represent a virtual machine
55 XBT_PUBLIC_CLASS VirtualMachineImpl : public surf::HostImpl
57 friend simgrid::s4u::VirtualMachine;
60 explicit VirtualMachineImpl(s4u::VirtualMachine * piface, s4u::Host * host, int coreAmount);
61 ~VirtualMachineImpl();
63 /** @brief Suspend the VM */
64 virtual void suspend(simgrid::simix::ActorImpl* issuer);
66 /** @brief Resume the VM */
67 virtual void resume();
69 /** @brief Shutdown the VM */
70 virtual void shutdown(simgrid::simix::ActorImpl* issuer);
72 /** @brief Change the physical host on which the given VM is running */
73 virtual void setPm(s4u::Host* dest);
75 /** @brief Get the physical machine hosting the VM */
78 sg_size_t getRamsize();
80 virtual void setBound(double bound);
82 void getParams(vm_params_t params);
83 void setParams(vm_params_t params);
85 /* The vm object of the lower layer */
86 surf::Action* action_ = nullptr;
88 /* Dirty pages stuff */
90 xbt_dict_t dp_objs = nullptr;
91 double dp_updated_by_deleted_tasks = 0;
94 simgrid::s4u::Host* hostPM_;
97 e_surf_vm_state_t getState();
98 void setState(e_surf_vm_state_t state);
99 static std::deque<s4u::VirtualMachine*> allVms_;
100 int coreAmount() { return coreAmount_; }
102 bool isMigrating = false;
105 s_vm_params_t params_;
109 e_surf_vm_state_t vmState_ = SURF_VM_STATE_CREATED;
115 /** @ingroup SURF_vm_interface
116 * @brief SURF VM model interface class
117 * @details A model is an object which handle the interactions between its Resources and its Actions
119 class VMModel : public surf::HostModel {
121 void ignoreEmptyVmInPmLMM() override{};
123 double nextOccuringEvent(double now) override;
124 void updateActionsState(double /*now*/, double /*delta*/) override{};
129 XBT_PUBLIC_DATA(simgrid::vm::VMModel*) surf_vm_model;
131 #endif /* VM_INTERFACE_HPP_ */