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);
78 /* Host destruction logic */
79 /**************************/
83 void attach(simgrid::s4u::Host* host);
85 /** @brief Return the storage of corresponding mount point */
86 virtual simgrid::surf::Storage *findStorageOnMountList(const char* storage);
88 /** @brief Get the xbt_dict_t of mount_point: Storage */
89 virtual xbt_dict_t getMountedStorageList();
91 /** @brief Get the xbt_dynar_t of storages attached to the Host */
92 virtual xbt_dynar_t getAttachedStorageList();
97 * @param fullpath The full path to the file
98 * @return The StorageAction corresponding to the opening
100 virtual Action *open(const char* fullpath);
103 * @brief Close a file
105 * @param fd The file descriptor to close
106 * @return The StorageAction corresponding to the closing
108 virtual Action *close(surf_file_t fd);
111 * @brief Unlink a file
112 * @details [long description]
114 * @param fd [description]
115 * @return [description]
117 virtual int unlink(surf_file_t fd);
120 * @brief Get the size in bytes of the file
122 * @param fd The file descriptor to read
123 * @return The size in bytes of the file
125 virtual sg_size_t getSize(surf_file_t fd);
130 * @param fd The file descriptor to read
131 * @param size The size in bytes to read
132 * @return The StorageAction corresponding to the reading
134 virtual Action *read(surf_file_t fd, sg_size_t size);
137 * @brief Write a file
139 * @param fd The file descriptor to write
140 * @param size The size in bytes to write
141 * @return The StorageAction corresponding to the writing
143 virtual Action *write(surf_file_t fd, sg_size_t size);
146 * @brief Get the information of a file descriptor
147 * @details The returned xbt_dynar_t contains:
148 * - the size of the file,
150 * - the storage name,
151 * - the storage typeId,
152 * - the storage content type
154 * @param fd The file descriptor
155 * @return An xbt_dynar_t with the file information
157 virtual xbt_dynar_t getInfo(surf_file_t fd);
160 * @brief Get the current position of the file descriptor
162 * @param fd The file descriptor
163 * @return The current position of the file descriptor
165 virtual sg_size_t fileTell(surf_file_t fd);
168 * @brief Set the position indicator associated with the file descriptor to a new position
169 * @details [long description]
171 * @param fd The file descriptor
172 * @param offset The offset from the origin
173 * @param origin Position used as a reference for the offset
174 * - SEEK_SET: beginning of the file
175 * - SEEK_CUR: current position indicator
176 * - SEEK_END: end of the file
177 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
179 virtual int fileSeek(surf_file_t fd, sg_offset_t offset, int origin);
182 * @brief Move a file to another location on the *same mount point*.
183 * @details [long description]
185 * @param fd The file descriptor
186 * @param fullpath The new full path
187 * @return MSG_OK if successful, MSG_TASK_CANCELED and a warning if the new
188 * full path is not on the same mount point
190 virtual int fileMove(surf_file_t fd, const char* fullpath);
193 xbt_dynar_t storage_ = nullptr;
194 simgrid::s4u::Host* piface_ = nullptr;
196 /** @brief Get the list of virtual machines on the current Host */
197 xbt_dynar_t getVms();
200 /** @brief Retrieve a copy of the parameters of that VM/PM
201 * @details The ramsize and overcommit fields are used on the PM too */
202 void getParams(vm_params_t params);
203 /** @brief Sets the params of that VM/PM */
204 void setParams(vm_params_t params);
205 simgrid::s4u::Host* getHost() { return piface_; }
207 s_vm_params_t params_;
213 #endif /* SURF_Host_INTERFACE_HPP_ */