1 /* Copyright (c) 2004-2017. 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.
19 typedef struct s_dirty_page* dirty_page_t;
28 /** @ingroup SURF_callbacks
29 * @brief Callbacks fired after VM creation. Signature: `void(VirtualMachine*)`
31 extern XBT_PRIVATE simgrid::xbt::signal<void(simgrid::vm::VirtualMachineImpl*)> onVmCreation;
33 /** @ingroup SURF_callbacks
34 * @brief Callbacks fired after VM destruction. Signature: `void(VirtualMachine*)`
36 extern XBT_PRIVATE simgrid::xbt::signal<void(simgrid::vm::VirtualMachineImpl*)> onVmDestruction;
38 /** @ingroup SURF_callbacks
39 * @brief Callbacks after VM State changes. Signature: `void(VirtualMachine*)`
41 extern XBT_PRIVATE simgrid::xbt::signal<void(simgrid::vm::VirtualMachineImpl*)> onVmStateChange;
47 /** @ingroup SURF_vm_interface
48 * @brief SURF VM interface class
49 * @details A VM represent a virtual machine
51 XBT_PUBLIC_CLASS VirtualMachineImpl : public surf::HostImpl
53 friend simgrid::s4u::VirtualMachine;
56 explicit VirtualMachineImpl(s4u::VirtualMachine * piface, s4u::Host * host, int coreAmount);
57 ~VirtualMachineImpl();
59 /** @brief Suspend the VM */
60 virtual void suspend(simgrid::simix::ActorImpl* issuer);
62 /** @brief Resume the VM */
63 virtual void resume();
65 /** @brief Shutdown the VM */
66 virtual void shutdown(simgrid::simix::ActorImpl* issuer);
68 /** @brief Change the physical host on which the given VM is running */
69 virtual void setPm(s4u::Host* dest);
71 /** @brief Get the physical machine hosting the VM */
74 sg_size_t getRamsize();
76 virtual void setBound(double bound);
78 void getParams(vm_params_t params);
79 void setParams(vm_params_t params);
81 /* The vm object of the lower layer */
82 surf::Action* action_ = nullptr;
84 /* Dirty pages stuff */
85 std::unordered_map<std::string, dirty_page_t> dp_objs;
87 double dp_updated_by_deleted_tasks = 0;
89 e_surf_vm_state_t getState();
90 void setState(e_surf_vm_state_t state);
91 static std::deque<s4u::VirtualMachine*> allVms_;
92 int coreAmount() { return coreAmount_; }
94 bool isMigrating = false;
97 simgrid::s4u::Host* hostPM_;
98 s_vm_params_t params_;
100 e_surf_vm_state_t vmState_ = SURF_VM_STATE_CREATED;
106 /** @ingroup SURF_vm_interface
107 * @brief SURF VM model interface class
108 * @details A model is an object which handle the interactions between its Resources and its Actions
110 class XBT_PRIVATE VMModel : public surf::HostModel {
113 void ignoreEmptyVmInPmLMM() override{};
115 double nextOccuringEvent(double now) override;
116 void updateActionsState(double /*now*/, double /*delta*/) override{};
121 XBT_PUBLIC_DATA(simgrid::vm::VMModel*) surf_vm_model;
123 #endif /* VM_INTERFACE_HPP_ */