1 /* Copyright (c) 2004-2014. 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"
12 #ifndef SURF_HOST_INTERFACE_HPP_
13 #define SURF_HOST_INTERFACE_HPP_
27 /** @ingroup SURF_callbacks
28 * @brief Callbacks fired after Host creation. Signature: `void(Host*)`
30 XBT_PUBLIC_DATA(surf_callback(void, Host*)) hostCreatedCallbacks;
32 /** @ingroup SURF_callbacks
33 * @brief Callbacks fired Host destruction. Signature: `void(Host*)`
35 XBT_PUBLIC_DATA(surf_callback(void, Host*)) hostDestructedCallbacks;
37 /** @ingroup SURF_callbacks
38 * @brief Callbacks fired after Host State changed. Signature: `void(Host *, e_surf_resource_state_t old, e_surf_resource_state_t current)`
40 XBT_PUBLIC_DATA(surf_callback(void, Host*, e_surf_resource_state_t, e_surf_resource_state_t)) hostStateChangedCallbacks;
42 /** @ingroup SURF_callbacks
43 * @brief Callbacks fired HostAction State changed. Signature: `void(HostAction *, e_surf_action_state_t old, e_surf_action_state_t current)`
45 XBT_PUBLIC_DATA(surf_callback(void, HostAction*, e_surf_action_state_t, e_surf_action_state_t)) hostActionStateChangedCallbacks;
50 XBT_PUBLIC_DATA(HostModel*) surf_host_model;
51 XBT_PUBLIC(void) host_parse_init(sg_platf_host_cbarg_t host);
52 XBT_PUBLIC(void) host_add_traces();
57 /** @ingroup SURF_host_interface
58 * @brief SURF Host model interface class
59 * @details A model is an object which handle the interactions between its Resources and its Actions
61 class HostModel : public Model {
63 HostModel() : Model() {}
66 virtual Host *createHost(const char *name)=0;
67 void addTraces(){DIE_IMPOSSIBLE;}
69 virtual void adjustWeightOfDummyCpuActions();
70 virtual Action *executeParallelTask(int host_nb,
76 virtual Action *communicate(Host *src, Host *dst, double size, double rate)=0;
78 bool shareResourcesIsIdempotent() {return true;}
84 /** @ingroup SURF_host_interface
85 * @brief SURF Host interface class
86 * @details An host represents a machine with a aggregation of a Cpu, a Link and a Storage
88 class Host : public Resource {
91 * @brief Host constructor
93 * @param model HostModel associated to this Host
94 * @param name The name of the Host
95 * @param props Dictionary of properties associated to this Host
96 * @param storage The Storage associated to this Host
97 * @param netElm The RoutingEdge associated to this Host
98 * @param cpu The Cpu associated to this Host
100 Host(Model *model, const char *name, xbt_dict_t props,
101 xbt_dynar_t storage, RoutingEdge *netElm, Cpu *cpu);
104 * @brief Host constructor
106 * @param model HostModel associated to this Host
107 * @param name The name of the Host
108 * @param props Dictionary of properties associated to this Host
109 * @param constraint The lmm constraint associated to this Host if it is part of a LMM component
110 * @param storage The Storage associated to this Host
111 * @param netElm The RoutingEdge associated to this Host
112 * @param cpu The Cpu associated to this Host
114 Host(Model *model, const char *name, xbt_dict_t props,
115 lmm_constraint_t constraint, xbt_dynar_t storage, RoutingEdge *netElm,
118 /** @brief Host destructor */
121 void setState(e_surf_resource_state_t state);
124 * @brief Get the properties of the current Host
126 * @return The properties of the current Host
128 xbt_dict_t getProperties();
131 * @brief Execute some quantity of computation
133 * @param flops_amount The value of the processing amount (in flop) needed to process
134 * @return The CpuAction corresponding to the processing
137 virtual Action *execute(double flops_amount)=0;
140 * @brief Make a process sleep for duration seconds
142 * @param duration The number of seconds to sleep
143 * @return The CpuAction corresponding to the sleeping
146 virtual Action *sleep(double duration)=0;
149 * @brief Get the number of cores of the associated Cpu
151 * @return The number of cores of the associated Cpu
154 virtual int getCore();
157 * @brief Get the speed of the associated Cpu
160 * @return The speed of the associated Cpu
163 virtual double getSpeed(double load);
166 * @brief Get the available speed of the associated Cpu
169 * @return The available speed of the associated Cpu
172 virtual double getAvailableSpeed();
175 * @brief Get the associated Cpu power peak
177 * @return The associated Cpu power peak
180 virtual double getCurrentPowerPeak();
182 virtual double getPowerPeakAt(int pstate_index);
183 virtual int getNbPstates();
184 virtual void setPstate(int pstate_index);
185 virtual int getPstate();
188 * @brief Return the storage of corresponding mount point
190 * @param storage The mount point
191 * @return The corresponding Storage
193 virtual Storage *findStorageOnMountList(const char* storage);
196 * @brief Get the xbt_dict_t of mount_point: Storage
198 * @return The xbt_dict_t of mount_point: Storage
200 virtual xbt_dict_t getMountedStorageList();
203 * @brief Get the xbt_dynar_t of storages attached to the Host
205 * @return The xbt_dynar_t of Storage names
207 virtual xbt_dynar_t getAttachedStorageList();
212 * @param fullpath The full path to the file
214 * @return The StorageAction corresponding to the opening
216 virtual Action *open(const char* fullpath);
219 * @brief Close a file
221 * @param fd The file descriptor to close
222 * @return The StorageAction corresponding to the closing
224 virtual Action *close(surf_file_t fd);
227 * @brief Unlink a file
228 * @details [long description]
230 * @param fd [description]
231 * @return [description]
233 virtual int unlink(surf_file_t fd);
236 * @brief Get the size in bytes of the file
238 * @param fd The file descriptor to read
239 * @return The size in bytes of the file
241 virtual sg_size_t getSize(surf_file_t fd);
246 * @param fd The file descriptor to read
247 * @param size The size in bytes to read
248 * @return The StorageAction corresponding to the reading
250 virtual Action *read(surf_file_t fd, sg_size_t size);
253 * @brief Write a file
255 * @param fd The file descriptor to write
256 * @param size The size in bytes to write
257 * @return The StorageAction corresponding to the writing
259 virtual Action *write(surf_file_t fd, sg_size_t size);
262 * @brief Get the informations of a file descriptor
263 * @details The returned xbt_dynar_t contains:
264 * - the size of the file,
266 * - the storage name,
267 * - the storage typeId,
268 * - the storage content type
270 * @param fd The file descriptor
271 * @return An xbt_dynar_t with the file informations
273 virtual xbt_dynar_t getInfo(surf_file_t fd);
276 * @brief Get the current position of the file descriptor
278 * @param fd The file descriptor
279 * @return The current position of the file descriptor
281 virtual sg_size_t fileTell(surf_file_t fd);
284 * @brief Set the position indicator associated with the file descriptor to a new position
285 * @details [long description]
287 * @param fd The file descriptor
288 * @param offset The offset from the origin
289 * @param origin Position used as a reference for the offset
290 * - SEEK_SET: beginning of the file
291 * - SEEK_CUR: current position indicator
292 * - SEEK_END: end of the file
293 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
295 virtual int fileSeek(surf_file_t fd, sg_offset_t offset, int origin);
298 * @brief Move a file to another location on the *same mount point*.
299 * @details [long description]
301 * @param fd The file descriptor
302 * @param fullpath The new full path
303 * @return MSG_OK if successful, MSG_TASK_CANCELED and a warning if the new
304 * full path is not on the same mount point
306 virtual int fileMove(surf_file_t fd, const char* fullpath);
308 xbt_dynar_t p_storage;
309 RoutingEdge *p_netElm;
313 * @brief Get the list of virtual machines on the current Host
315 * @return The list of VMs
317 xbt_dynar_t getVms();
321 * @brief [brief description]
322 * @details [long description]
324 * @param params [description]
326 void getParams(ws_params_t params);
329 * @brief [brief description]
330 * @details [long description]
332 * @param params [description]
334 void setParams(ws_params_t params);
335 s_ws_params_t p_params;
342 /** @ingroup SURF_host_interface
343 * @brief SURF host action interface class
345 class HostAction : public Action {
348 * @brief HostAction constructor
350 * @param model The HostModel associated to this HostAction
351 * @param cost The cost of this HostAction in [TODO]
352 * @param failed [description]
354 HostAction(Model *model, double cost, bool failed)
355 : Action(model, cost, failed) {}
358 * @brief HostAction constructor
360 * @param model The HostModel associated to this HostAction
361 * @param cost The cost of this HostAction in [TODO]
362 * @param failed [description]
363 * @param var The lmm variable associated to this StorageAction if it is part of a LMM component
365 HostAction(Model *model, double cost, bool failed, lmm_variable_t var)
366 : Action(model, cost, failed, var) {}
368 void setState(e_surf_action_state_t state);
372 #endif /* SURF_Host_INTERFACE_HPP_ */