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 "src/surf/HostImpl.hpp"
14 #ifndef VM_INTERFACE_HPP_
15 #define VM_INTERFACE_HPP_
17 #define GUESTOS_NOISE 100 // This value corresponds to the cost of the global action associated to the VM
18 // It corresponds to the cost of a VM running no tasks.
27 class XBT_PRIVATE VMModel;
28 class XBT_PRIVATE VirtualMachineImpl;
34 /** @ingroup SURF_callbacks
35 * @brief Callbacks fired after VM creation. Signature: `void(VirtualMachine*)`
37 extern XBT_PRIVATE simgrid::xbt::signal<void(simgrid::surf::VirtualMachineImpl*)> onVmCreation;
39 /** @ingroup SURF_callbacks
40 * @brief Callbacks fired after VM destruction. Signature: `void(VirtualMachine*)`
42 extern XBT_PRIVATE simgrid::xbt::signal<void(simgrid::surf::VirtualMachineImpl*)> onVmDestruction;
44 /** @ingroup SURF_callbacks
45 * @brief Callbacks after VM State changes. Signature: `void(VirtualMachine*)`
47 extern XBT_PRIVATE simgrid::xbt::signal<void(simgrid::surf::VirtualMachineImpl*)> onVmStateChange;
53 /** @ingroup SURF_vm_interface
54 * @brief SURF VM interface class
55 * @details A VM represent a virtual machine
57 class VirtualMachineImpl : public HostImpl {
59 explicit VirtualMachineImpl(s4u::Host* piface, s4u::Host* host);
60 ~VirtualMachineImpl();
62 /** @brief Suspend the VM */
63 virtual void suspend();
65 /** @brief Resume the VM */
66 virtual void resume();
68 /** @brief Save the VM (Not yet implemented) */
71 /** @brief Restore the VM (Not yet implemented) */
72 virtual void restore();
74 /** @brief Migrate the VM to the destination host */
75 virtual void migrate(s4u::Host* dest);
77 /** @brief Get the physical machine hosting the VM */
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 CpuAction* 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<VirtualMachineImpl*> allVms_;
101 bool isMigrating = false;
104 s_vm_params_t params_;
107 e_surf_vm_state_t vmState_ = SURF_VM_STATE_CREATED;
113 /** @ingroup SURF_vm_interface
114 * @brief SURF VM model interface class
115 * @details A model is an object which handle the interactions between its Resources and its Actions
117 class VMModel : public HostModel {
119 void adjustWeightOfDummyCpuActions() override{};
121 double nextOccuringEvent(double now) override;
122 void updateActionsState(double /*now*/, double /*delta*/) override{};
127 #endif /* VM_INTERFACE_HPP_ */