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 "surf_interface.hpp"
8 #include "storage_interface.hpp"
9 #include "cpu_interface.hpp"
10 #include "network_interface.hpp"
11 #include "src/surf/PropertyHolder.hpp"
15 #ifndef SURF_HOST_INTERFACE_HPP_
16 #define SURF_HOST_INTERFACE_HPP_
25 class XBT_PRIVATE HostModel;
26 class XBT_PRIVATE Host;
27 class XBT_PRIVATE HostAction;
36 XBT_PUBLIC_DATA(simgrid::surf::HostModel*) surf_host_model;
37 XBT_PUBLIC(void) host_add_traces();
46 /** @ingroup SURF_host_interface
47 * @brief SURF Host model interface class
48 * @details A model is an object which handle the interactions between its Resources and its Actions
50 class HostModel : public Model{
52 HostModel() : Model() {}
55 virtual Host *createHost(const char *name, RoutingEdge *net, Cpu *cpu, xbt_dict_t props)=0;
56 void addTraces() override {DIE_IMPOSSIBLE;}
58 virtual void adjustWeightOfDummyCpuActions();
59 virtual Action *executeParallelTask(int host_nb,
65 bool shareResourcesIsIdempotent() override {return true;}
71 /** @ingroup SURF_host_interface
72 * @brief SURF Host interface class
73 * @details An host represents a machine with a aggregation of a Cpu, a Link and a Storage
75 class Host : public simgrid::surf::Resource,
76 public simgrid::surf::PropertyHolder {
78 static simgrid::xbt::Extension<simgrid::Host, Host> EXTENSION_ID;
81 static simgrid::surf::signal<void(Host*)> onCreation; /** Called on each newly created object */
82 static simgrid::surf::signal<void(Host*)> onDestruction; /** Called just before destructing an object */
83 static simgrid::surf::signal<void(simgrid::surf::Host*, e_surf_resource_state_t, e_surf_resource_state_t)> onStateChange;
88 * @brief Host constructor
90 * @param model HostModel associated to this Host
91 * @param name The name of the Host
92 * @param props Dictionary of properties associated to this Host
93 * @param storage The Storage associated to this Host
94 * @param netElm The RoutingEdge associated to this Host
95 * @param cpu The Cpu associated to this Host
97 Host(simgrid::surf::Model *model, const char *name, xbt_dict_t props,
98 xbt_dynar_t storage, RoutingEdge *netElm, Cpu *cpu);
101 * @brief Host constructor
103 * @param model HostModel associated to this Host
104 * @param name The name of the Host
105 * @param props Dictionary of properties associated to this Host
106 * @param constraint The lmm constraint associated to this Host if it is part of a LMM component
107 * @param storage The Storage associated to this Host
108 * @param netElm The RoutingEdge associated to this Host
109 * @param cpu The Cpu associated to this Host
111 Host(simgrid::surf::Model *model, const char *name, xbt_dict_t props,
112 lmm_constraint_t constraint, xbt_dynar_t storage, RoutingEdge *netElm,
115 /** @brief Host destructor */
118 void attach(simgrid::Host* host);
119 void setState(e_surf_resource_state_t state);
122 * @brief Execute some quantity of computation
124 * @param flops_amount The value of the processing amount (in flop) needed to process
125 * @return The CpuAction corresponding to the processing
128 virtual Action *execute(double flops_amount)=0;
131 * @brief Make a process sleep for duration seconds
133 * @param duration The number of seconds to sleep
134 * @return The CpuAction corresponding to the sleeping
137 virtual Action *sleep(double duration)=0;
139 /** @brief Return the storage of corresponding mount point */
140 virtual simgrid::surf::Storage *findStorageOnMountList(const char* storage);
142 /** @brief Get the xbt_dict_t of mount_point: Storage */
143 virtual xbt_dict_t getMountedStorageList();
145 /** @brief Get the xbt_dynar_t of storages attached to the Host */
146 virtual xbt_dynar_t getAttachedStorageList();
151 * @param fullpath The full path to the file
153 * @return The StorageAction corresponding to the opening
155 virtual Action *open(const char* fullpath);
158 * @brief Close a file
160 * @param fd The file descriptor to close
161 * @return The StorageAction corresponding to the closing
163 virtual Action *close(surf_file_t fd);
166 * @brief Unlink a file
167 * @details [long description]
169 * @param fd [description]
170 * @return [description]
172 virtual int unlink(surf_file_t fd);
175 * @brief Get the size in bytes of the file
177 * @param fd The file descriptor to read
178 * @return The size in bytes of the file
180 virtual sg_size_t getSize(surf_file_t fd);
185 * @param fd The file descriptor to read
186 * @param size The size in bytes to read
187 * @return The StorageAction corresponding to the reading
189 virtual Action *read(surf_file_t fd, sg_size_t size);
192 * @brief Write a file
194 * @param fd The file descriptor to write
195 * @param size The size in bytes to write
196 * @return The StorageAction corresponding to the writing
198 virtual Action *write(surf_file_t fd, sg_size_t size);
201 * @brief Get the informations of a file descriptor
202 * @details The returned xbt_dynar_t contains:
203 * - the size of the file,
205 * - the storage name,
206 * - the storage typeId,
207 * - the storage content type
209 * @param fd The file descriptor
210 * @return An xbt_dynar_t with the file informations
212 virtual xbt_dynar_t getInfo(surf_file_t fd);
215 * @brief Get the current position of the file descriptor
217 * @param fd The file descriptor
218 * @return The current position of the file descriptor
220 virtual sg_size_t fileTell(surf_file_t fd);
223 * @brief Set the position indicator associated with the file descriptor to a new position
224 * @details [long description]
226 * @param fd The file descriptor
227 * @param offset The offset from the origin
228 * @param origin Position used as a reference for the offset
229 * - SEEK_SET: beginning of the file
230 * - SEEK_CUR: current position indicator
231 * - SEEK_END: end of the file
232 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
234 virtual int fileSeek(surf_file_t fd, sg_offset_t offset, int origin);
237 * @brief Move a file to another location on the *same mount point*.
238 * @details [long description]
240 * @param fd The file descriptor
241 * @param fullpath The new full path
242 * @return MSG_OK if successful, MSG_TASK_CANCELED and a warning if the new
243 * full path is not on the same mount point
245 virtual int fileMove(surf_file_t fd, const char* fullpath);
248 void onDie() override;
251 xbt_dynar_t p_storage;
252 RoutingEdge *p_netElm;
254 simgrid::Host* p_host = nullptr;
256 /** @brief Get the list of virtual machines on the current Host */
257 xbt_dynar_t getVms();
260 /** @brief Retrieve a copy of the parameters of that VM/PM
261 * @details The ramsize and overcommit fields are used on the PM too */
262 void getParams(vm_params_t params);
263 /** @brief Sets the params of that VM/PM */
264 void setParams(vm_params_t params);
265 simgrid::Host* getHost() { return p_host; }
267 s_vm_params_t p_params;
274 /** @ingroup SURF_host_interface
275 * @brief SURF host action interface class
277 class HostAction : public Action {
279 static simgrid::surf::signal<void(simgrid::surf::HostAction*, e_surf_action_state_t, e_surf_action_state_t)> onStateChange;
282 * @brief HostAction constructor
284 * @param model The HostModel associated to this HostAction
285 * @param cost The cost of this HostAction in [TODO]
286 * @param failed [description]
288 HostAction(simgrid::surf::Model *model, double cost, bool failed)
289 : Action(model, cost, failed) {}
292 * @brief HostAction constructor
294 * @param model The HostModel associated to this HostAction
295 * @param cost The cost of this HostAction in [TODO]
296 * @param failed [description]
297 * @param var The lmm variable associated to this StorageAction if it is part of a LMM component
299 HostAction(simgrid::surf::Model *model, double cost, bool failed, lmm_variable_t var)
300 : Action(model, cost, failed, var) {}
302 void setState(e_surf_action_state_t state);
308 #endif /* SURF_Host_INTERFACE_HPP_ */