1 /* Copyright (c) 2004-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include <boost/intrusive/list.hpp>
12 #include "simgrid/s4u/VirtualMachine.hpp"
13 #include "src/surf/HostImpl.hpp"
15 #ifndef VM_INTERFACE_HPP_
16 #define VM_INTERFACE_HPP_
18 #define GUESTOS_NOISE 100 // This value corresponds to the cost of the global action associated to the VM
19 // It corresponds to the cost of a VM running no tasks.
28 class XBT_PRIVATE VMModel;
29 class XBT_PRIVATE VirtualMachineImpl;
35 /** @ingroup SURF_callbacks
36 * @brief Callbacks fired after VM creation. Signature: `void(VirtualMachine*)`
38 extern XBT_PRIVATE simgrid::xbt::signal<void(simgrid::vm::VirtualMachineImpl*)> onVmCreation;
40 /** @ingroup SURF_callbacks
41 * @brief Callbacks fired after VM destruction. Signature: `void(VirtualMachine*)`
43 extern XBT_PRIVATE simgrid::xbt::signal<void(simgrid::vm::VirtualMachineImpl*)> onVmDestruction;
45 /** @ingroup SURF_callbacks
46 * @brief Callbacks after VM State changes. Signature: `void(VirtualMachine*)`
48 extern XBT_PRIVATE simgrid::xbt::signal<void(simgrid::vm::VirtualMachineImpl*)> onVmStateChange;
54 /** @ingroup SURF_vm_interface
55 * @brief SURF VM interface class
56 * @details A VM represent a virtual machine
58 class VirtualMachineImpl : public surf::HostImpl {
59 friend simgrid::s4u::VirtualMachine;
62 explicit VirtualMachineImpl(s4u::VirtualMachine* piface, s4u::Host* host);
63 ~VirtualMachineImpl();
65 /** @brief Suspend the VM */
66 virtual void suspend(smx_actor_t issuer);
68 /** @brief Resume the VM */
69 virtual void resume();
71 /** @brief Save (suspend+store on disk) the VM */
72 virtual void save(smx_actor_t issuer);
74 /** @brief Restore (read from disk+resume) the VM */
75 virtual void restore();
77 /** @brief Shutdown the VM */
78 virtual void shutdown(smx_actor_t issuer);
80 /** @brief Change the physical host on which the given VM is running */
81 virtual void setPm(s4u::Host* dest);
83 /** @brief Get the physical machine hosting the VM */
86 sg_size_t getRamsize();
88 virtual void setBound(double bound);
90 void getParams(vm_params_t params);
91 void setParams(vm_params_t params);
93 /* The vm object of the lower layer */
94 surf::Action* action_ = nullptr;
96 /* Dirty pages stuff */
98 xbt_dict_t dp_objs = nullptr;
99 double dp_updated_by_deleted_tasks = 0;
102 simgrid::s4u::Host* hostPM_;
105 e_surf_vm_state_t getState();
106 void setState(e_surf_vm_state_t state);
107 static std::deque<s4u::VirtualMachine*> allVms_;
109 bool isMigrating = false;
112 s_vm_params_t params_;
115 e_surf_vm_state_t vmState_ = SURF_VM_STATE_CREATED;
121 /** @ingroup SURF_vm_interface
122 * @brief SURF VM model interface class
123 * @details A model is an object which handle the interactions between its Resources and its Actions
125 class VMModel : public surf::HostModel {
127 void adjustWeightOfDummyCpuActions() override{};
129 double nextOccuringEvent(double now) override;
130 void updateActionsState(double /*now*/, double /*delta*/) override{};
135 XBT_PUBLIC_DATA(simgrid::vm::VMModel*) surf_vm_model;
137 #endif /* VM_INTERFACE_HPP_ */