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. */
9 #include "host_interface.hpp"
11 #ifndef VM_INTERFACE_HPP_
12 #define VM_INTERFACE_HPP_
14 #define GUESTOS_NOISE 100 // This value corresponds to the cost of the global action associated to the VM
15 // It corresponds to the cost of a VM running no tasks.
21 class XBT_PRIVATE VMModel;
28 /** @ingroup SURF_callbacks
29 * @brief Callbacks fired after VM creation. Signature: `void(VM*)`
31 extern XBT_PRIVATE surf_callback(void, VM*) VMCreatedCallbacks;
33 /** @ingroup SURF_callbacks
34 * @brief Callbacks fired after VM destruction. Signature: `void(VM*)`
36 extern XBT_PRIVATE surf_callback(void, VM*) VMDestructedCallbacks;
38 /** @ingroup SURF_callbacks
39 * @brief Callbacks after VM State changes. Signature: `void(VMAction*)`
41 extern XBT_PRIVATE surf_callback(void, VM*) VMStateChangedCallbacks;
47 /** @ingroup SURF_vm_interface
48 * @brief SURF VM interface class
49 * @details A VM represent a virtual machine
51 class VM : public Host {
56 * @param model VMModel associated to this VM
57 * @param name The name of the VM
58 * @param props Dictionary of properties associated to this VM
59 * @param netElm The RoutingEdge associated to this VM
60 * @param cpu The Cpu associated to this VM
62 VM(Model *model, const char *name, xbt_dict_t props,
63 RoutingEdge *netElm, Cpu *cpu);
65 /** @brief Destructor */
68 void setState(e_surf_resource_state_t state);
70 /** @brief Suspend the VM */
71 virtual void suspend()=0;
73 /** @brief Resume the VM */
74 virtual void resume()=0;
76 /** @brief Save the VM (Not yet implemented) */
77 virtual void save()=0;
79 /** @brief Restore the VM (Not yet implemented) */
80 virtual void restore()=0;
82 /** @brief Migrate the VM to the destination host */
83 virtual void migrate(surf_resource_t dest_PM)=0;
85 /** @brief Get the physical machine hosting the VM */
86 virtual surf_resource_t getPm()=0;
88 virtual void setBound(double bound)=0;
89 virtual void setAffinity(Cpu *cpu, unsigned long mask)=0;
91 /* The vm object of the lower layer */
93 Host *p_subWs; // Pointer to the ''host'' OS
94 e_surf_vm_state_t p_currentState;
96 boost::intrusive::list_member_hook<> vm_hook;
102 /** @ingroup SURF_vm_interface
103 * @brief SURF VM model interface class
104 * @details A model is an object which handle the interactions between its Resources and its Actions
106 class VMModel : public HostModel {
108 VMModel() :HostModel(){}
111 Host *createHost(const char *name){DIE_IMPOSSIBLE;}
114 * @brief Create a new VM
116 * @param name The name of the new VM
117 * @param host_PM The real machine hosting the VM
120 virtual VM *createVM(const char *name, surf_resource_t host_PM)=0;
121 void adjustWeightOfDummyCpuActions() {};
123 typedef boost::intrusive::member_hook<
124 VM, boost::intrusive::list_member_hook<>, &VM::vm_hook> VmOptions;
125 typedef boost::intrusive::list<VM, VmOptions, boost::intrusive::constant_time_size<false> > vm_list_t;
126 static vm_list_t ws_vms;
133 #endif /* VM_INTERFACE_HPP_ */