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, size_t ramsize);
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() { return ramsize_; }
75 void setRamsize(sg_size_t ramsize) { ramsize_ = ramsize; }
77 virtual void setBound(double bound);
79 void getParams(vm_params_t params);
80 void setParams(vm_params_t params);
82 /* The vm object of the lower layer */
83 surf::Action* action_ = nullptr;
85 /* Dirty pages stuff */
86 std::unordered_map<std::string, dirty_page_t> dp_objs;
87 bool dp_enabled = false;
88 double dp_updated_by_deleted_tasks = 0;
90 e_surf_vm_state_t getState();
91 void setState(e_surf_vm_state_t state);
92 static std::deque<s4u::VirtualMachine*> allVms_;
93 int coreAmount() { return coreAmount_; }
95 bool isMigrating = false;
98 simgrid::s4u::Host* hostPM_;
99 s_vm_params_t params_;
102 e_surf_vm_state_t vmState_ = SURF_VM_STATE_CREATED;
108 /** @ingroup SURF_vm_interface
109 * @brief SURF VM model interface class
110 * @details A model is an object which handle the interactions between its Resources and its Actions
112 class XBT_PRIVATE VMModel : public surf::HostModel {
115 void ignoreEmptyVmInPmLMM() override{};
117 double nextOccuringEvent(double now) override;
118 void updateActionsState(double /*now*/, double /*delta*/) override{};
123 XBT_PUBLIC_DATA(simgrid::vm::VMModel*) surf_vm_model;
125 #endif /* VM_INTERFACE_HPP_ */