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 bool shareResourcesIsIdempotent() {return true;}
82 /** @ingroup SURF_host_interface
83 * @brief SURF Host interface class
84 * @details An host represents a machine with a aggregation of a Cpu, a Link and a Storage
86 class Host : public Resource {
89 * @brief Host constructor
91 * @param model HostModel associated to this Host
92 * @param name The name of the Host
93 * @param props Dictionary of properties associated to this Host
94 * @param storage The Storage associated to this Host
95 * @param netElm The RoutingEdge associated to this Host
96 * @param cpu The Cpu associated to this Host
98 Host(Model *model, const char *name, xbt_dict_t props,
99 xbt_dynar_t storage, RoutingEdge *netElm, Cpu *cpu);
102 * @brief Host constructor
104 * @param model HostModel associated to this Host
105 * @param name The name of the Host
106 * @param props Dictionary of properties associated to this Host
107 * @param constraint The lmm constraint associated to this Host if it is part of a LMM component
108 * @param storage The Storage associated to this Host
109 * @param netElm The RoutingEdge associated to this Host
110 * @param cpu The Cpu associated to this Host
112 Host(Model *model, const char *name, xbt_dict_t props,
113 lmm_constraint_t constraint, xbt_dynar_t storage, RoutingEdge *netElm,
116 /** @brief Host destructor */
119 void setState(e_surf_resource_state_t state);
122 * @brief Get the properties of the current Host
124 * @return The properties of the current Host
126 xbt_dict_t getProperties();
129 * @brief Execute some quantity of computation
131 * @param flops_amount The value of the processing amount (in flop) needed to process
132 * @return The CpuAction corresponding to the processing
135 virtual Action *execute(double flops_amount)=0;
138 * @brief Make a process sleep for duration seconds
140 * @param duration The number of seconds to sleep
141 * @return The CpuAction corresponding to the sleeping
144 virtual Action *sleep(double duration)=0;
147 * @brief Get the number of cores of the associated Cpu
149 * @return The number of cores of the associated Cpu
152 virtual int getCore();
155 * @brief Get the speed of the associated Cpu
158 * @return The speed of the associated Cpu
161 virtual double getSpeed(double load);
164 * @brief Get the available speed of the associated Cpu
167 * @return The available speed of the associated Cpu
170 virtual double getAvailableSpeed();
173 * @brief Get the associated Cpu power peak
175 * @return The associated Cpu power peak
178 virtual double getCurrentPowerPeak();
180 virtual double getPowerPeakAt(int pstate_index);
181 virtual int getNbPstates();
182 virtual void setPstate(int pstate_index);
183 virtual int getPstate();
186 * @brief Return the storage of corresponding mount point
188 * @param storage The mount point
189 * @return The corresponding Storage
191 virtual Storage *findStorageOnMountList(const char* storage);
194 * @brief Get the xbt_dict_t of mount_point: Storage
196 * @return The xbt_dict_t of mount_point: Storage
198 virtual xbt_dict_t getMountedStorageList();
201 * @brief Get the xbt_dynar_t of storages attached to the Host
203 * @return The xbt_dynar_t of Storage names
205 virtual xbt_dynar_t getAttachedStorageList();
210 * @param fullpath The full path to the file
212 * @return The StorageAction corresponding to the opening
214 virtual Action *open(const char* fullpath);
217 * @brief Close a file
219 * @param fd The file descriptor to close
220 * @return The StorageAction corresponding to the closing
222 virtual Action *close(surf_file_t fd);
225 * @brief Unlink a file
226 * @details [long description]
228 * @param fd [description]
229 * @return [description]
231 virtual int unlink(surf_file_t fd);
234 * @brief Get the size in bytes of the file
236 * @param fd The file descriptor to read
237 * @return The size in bytes of the file
239 virtual sg_size_t getSize(surf_file_t fd);
244 * @param fd The file descriptor to read
245 * @param size The size in bytes to read
246 * @return The StorageAction corresponding to the reading
248 virtual Action *read(surf_file_t fd, sg_size_t size);
251 * @brief Write a file
253 * @param fd The file descriptor to write
254 * @param size The size in bytes to write
255 * @return The StorageAction corresponding to the writing
257 virtual Action *write(surf_file_t fd, sg_size_t size);
260 * @brief Get the informations of a file descriptor
261 * @details The returned xbt_dynar_t contains:
262 * - the size of the file,
264 * - the storage name,
265 * - the storage typeId,
266 * - the storage content type
268 * @param fd The file descriptor
269 * @return An xbt_dynar_t with the file informations
271 virtual xbt_dynar_t getInfo(surf_file_t fd);
274 * @brief Get the current position of the file descriptor
276 * @param fd The file descriptor
277 * @return The current position of the file descriptor
279 virtual sg_size_t fileTell(surf_file_t fd);
282 * @brief Set the position indicator associated with the file descriptor to a new position
283 * @details [long description]
285 * @param fd The file descriptor
286 * @param offset The offset from the origin
287 * @param origin Position used as a reference for the offset
288 * - SEEK_SET: beginning of the file
289 * - SEEK_CUR: current position indicator
290 * - SEEK_END: end of the file
291 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
293 virtual int fileSeek(surf_file_t fd, sg_offset_t offset, int origin);
296 * @brief Move a file to another location on the *same mount point*.
297 * @details [long description]
299 * @param fd The file descriptor
300 * @param fullpath The new full path
301 * @return MSG_OK if successful, MSG_TASK_CANCELED and a warning if the new
302 * full path is not on the same mount point
304 virtual int fileMove(surf_file_t fd, const char* fullpath);
306 xbt_dynar_t p_storage;
307 RoutingEdge *p_netElm;
311 * @brief Get the list of virtual machines on the current Host
313 * @return The list of VMs
315 xbt_dynar_t getVms();
318 /** @brief Retrieve a copy of the parameters of that VM/PM
319 * @details The ramsize and overcommit fields are used on the PM too */
320 void getParams(vm_params_t params);
321 /** @brief Sets the params of that VM/PM */
322 void setParams(vm_params_t params);
324 s_vm_params_t p_params;
331 /** @ingroup SURF_host_interface
332 * @brief SURF host action interface class
334 class HostAction : public Action {
337 * @brief HostAction constructor
339 * @param model The HostModel associated to this HostAction
340 * @param cost The cost of this HostAction in [TODO]
341 * @param failed [description]
343 HostAction(Model *model, double cost, bool failed)
344 : Action(model, cost, failed) {}
347 * @brief HostAction constructor
349 * @param model The HostModel associated to this HostAction
350 * @param cost The cost of this HostAction in [TODO]
351 * @param failed [description]
352 * @param var The lmm variable associated to this StorageAction if it is part of a LMM component
354 HostAction(Model *model, double cost, bool failed, lmm_variable_t var)
355 : Action(model, cost, failed, var) {}
357 void setState(e_surf_action_state_t state);
361 #endif /* SURF_Host_INTERFACE_HPP_ */