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 HostImpl;
27 class XBT_PRIVATE HostAction;
37 XBT_PUBLIC_DATA(simgrid::surf::HostModel*) surf_host_model;
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() {}
54 virtual void adjustWeightOfDummyCpuActions();
55 virtual Action *executeParallelTask(int host_nb, sg_host_t *host_list,
56 double *flops_amount, double *bytes_amount, double rate);
62 /** @ingroup SURF_host_interface
63 * @brief SURF Host interface class
64 * @details An host represents a machine with a aggregation of a Cpu, a RoutingEdge and a Storage
66 class HostImpl : public simgrid::surf::PropertyHolder {
70 * @brief Host constructor
72 * @param model HostModel associated to this Host
73 * @param name The name of the Host
74 * @param storage The Storage associated to this Host
76 HostImpl(HostModel* model, const char* name, xbt_dynar_t storage);
79 * @brief Host constructor
81 * @param model HostModel associated to this Host
82 * @param name The name of the Host
83 * @param constraint The lmm constraint associated to this Host if it is part of a LMM component
84 * @param storage The Storage associated to this Host
86 HostImpl(HostModel* model, const char* name, lmm_constraint_t constraint, xbt_dynar_t storage);
88 /* Host destruction logic */
89 /**************************/
93 void attach(simgrid::s4u::Host* host);
95 /** @brief Return the storage of corresponding mount point */
96 virtual simgrid::surf::Storage *findStorageOnMountList(const char* storage);
98 /** @brief Get the xbt_dict_t of mount_point: Storage */
99 virtual xbt_dict_t getMountedStorageList();
101 /** @brief Get the xbt_dynar_t of storages attached to the Host */
102 virtual xbt_dynar_t getAttachedStorageList();
107 * @param fullpath The full path to the file
108 * @return The StorageAction corresponding to the opening
110 virtual Action *open(const char* fullpath);
113 * @brief Close a file
115 * @param fd The file descriptor to close
116 * @return The StorageAction corresponding to the closing
118 virtual Action *close(surf_file_t fd);
121 * @brief Unlink a file
122 * @details [long description]
124 * @param fd [description]
125 * @return [description]
127 virtual int unlink(surf_file_t fd);
130 * @brief Get the size in bytes of the file
132 * @param fd The file descriptor to read
133 * @return The size in bytes of the file
135 virtual sg_size_t getSize(surf_file_t fd);
140 * @param fd The file descriptor to read
141 * @param size The size in bytes to read
142 * @return The StorageAction corresponding to the reading
144 virtual Action *read(surf_file_t fd, sg_size_t size);
147 * @brief Write a file
149 * @param fd The file descriptor to write
150 * @param size The size in bytes to write
151 * @return The StorageAction corresponding to the writing
153 virtual Action *write(surf_file_t fd, sg_size_t size);
156 * @brief Get the information of a file descriptor
157 * @details The returned xbt_dynar_t contains:
158 * - the size of the file,
160 * - the storage name,
161 * - the storage typeId,
162 * - the storage content type
164 * @param fd The file descriptor
165 * @return An xbt_dynar_t with the file information
167 virtual xbt_dynar_t getInfo(surf_file_t fd);
170 * @brief Get the current position of the file descriptor
172 * @param fd The file descriptor
173 * @return The current position of the file descriptor
175 virtual sg_size_t fileTell(surf_file_t fd);
178 * @brief Set the position indicator associated with the file descriptor to a new position
179 * @details [long description]
181 * @param fd The file descriptor
182 * @param offset The offset from the origin
183 * @param origin Position used as a reference for the offset
184 * - SEEK_SET: beginning of the file
185 * - SEEK_CUR: current position indicator
186 * - SEEK_END: end of the file
187 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
189 virtual int fileSeek(surf_file_t fd, sg_offset_t offset, int origin);
192 * @brief Move a file to another location on the *same mount point*.
193 * @details [long description]
195 * @param fd The file descriptor
196 * @param fullpath The new full path
197 * @return MSG_OK if successful, MSG_TASK_CANCELED and a warning if the new
198 * full path is not on the same mount point
200 virtual int fileMove(surf_file_t fd, const char* fullpath);
203 xbt_dynar_t storage_ = nullptr;
204 simgrid::s4u::Host* piface_ = nullptr;
206 /** @brief Get the list of virtual machines on the current Host */
207 xbt_dynar_t getVms();
210 /** @brief Retrieve a copy of the parameters of that VM/PM
211 * @details The ramsize and overcommit fields are used on the PM too */
212 void getParams(vm_params_t params);
213 /** @brief Sets the params of that VM/PM */
214 void setParams(vm_params_t params);
215 simgrid::s4u::Host* getHost() { return piface_; }
217 s_vm_params_t params_;
223 #endif /* SURF_Host_INTERFACE_HPP_ */