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 Host *createHost(const char *name, NetCard *net, Cpu *cpu, xbt_dict_t props);
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 RoutingEdge and a Storage
76 public simgrid::surf::Resource,
77 public simgrid::surf::PropertyHolder {
79 static simgrid::xbt::Extension<simgrid::Host, Host> EXTENSION_ID;
82 static simgrid::surf::signal<void(Host*)> onCreation; /** Called on each newly created object */
83 static simgrid::surf::signal<void(Host*)> onDestruction; /** Called just before destructing an object */
84 static simgrid::surf::signal<void(Host*)> onStateChange; /** Called when the machine is turned on or off */
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, NetCard *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, NetCard *netElm,
115 /* Host destruction logic */
116 /**************************/
120 void destroy(); // Must be called instead of the destructor
122 bool currentlyDestroying_ = false;
126 void attach(simgrid::Host* host);
128 bool isOn() override;
129 bool isOff() override;
130 void turnOn() override;
131 void turnOff() override;
133 /** @brief Return the storage of corresponding mount point */
134 virtual simgrid::surf::Storage *findStorageOnMountList(const char* storage);
136 /** @brief Get the xbt_dict_t of mount_point: Storage */
137 virtual xbt_dict_t getMountedStorageList();
139 /** @brief Get the xbt_dynar_t of storages attached to the Host */
140 virtual xbt_dynar_t getAttachedStorageList();
145 * @param fullpath The full path to the file
146 * @return The StorageAction corresponding to the opening
148 virtual Action *open(const char* fullpath);
151 * @brief Close a file
153 * @param fd The file descriptor to close
154 * @return The StorageAction corresponding to the closing
156 virtual Action *close(surf_file_t fd);
159 * @brief Unlink a file
160 * @details [long description]
162 * @param fd [description]
163 * @return [description]
165 virtual int unlink(surf_file_t fd);
168 * @brief Get the size in bytes of the file
170 * @param fd The file descriptor to read
171 * @return The size in bytes of the file
173 virtual sg_size_t getSize(surf_file_t fd);
178 * @param fd The file descriptor to read
179 * @param size The size in bytes to read
180 * @return The StorageAction corresponding to the reading
182 virtual Action *read(surf_file_t fd, sg_size_t size);
185 * @brief Write a file
187 * @param fd The file descriptor to write
188 * @param size The size in bytes to write
189 * @return The StorageAction corresponding to the writing
191 virtual Action *write(surf_file_t fd, sg_size_t size);
194 * @brief Get the informations of a file descriptor
195 * @details The returned xbt_dynar_t contains:
196 * - the size of the file,
198 * - the storage name,
199 * - the storage typeId,
200 * - the storage content type
202 * @param fd The file descriptor
203 * @return An xbt_dynar_t with the file informations
205 virtual xbt_dynar_t getInfo(surf_file_t fd);
208 * @brief Get the current position of the file descriptor
210 * @param fd The file descriptor
211 * @return The current position of the file descriptor
213 virtual sg_size_t fileTell(surf_file_t fd);
216 * @brief Set the position indicator associated with the file descriptor to a new position
217 * @details [long description]
219 * @param fd The file descriptor
220 * @param offset The offset from the origin
221 * @param origin Position used as a reference for the offset
222 * - SEEK_SET: beginning of the file
223 * - SEEK_CUR: current position indicator
224 * - SEEK_END: end of the file
225 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
227 virtual int fileSeek(surf_file_t fd, sg_offset_t offset, int origin);
230 * @brief Move a file to another location on the *same mount point*.
231 * @details [long description]
233 * @param fd The file descriptor
234 * @param fullpath The new full path
235 * @return MSG_OK if successful, MSG_TASK_CANCELED and a warning if the new
236 * full path is not on the same mount point
238 virtual int fileMove(surf_file_t fd, const char* fullpath);
240 bool isUsed() override {DIE_IMPOSSIBLE;} // FIXME: Host should not be a Resource
241 void updateState(tmgr_trace_event_t event_type, double value, double date) override
242 {THROW_IMPOSSIBLE;} // FIXME: Host should not be a Resource
245 xbt_dynar_t p_storage;
248 simgrid::Host* p_host = nullptr;
250 /** @brief Get the list of virtual machines on the current Host */
251 xbt_dynar_t getVms();
254 /** @brief Retrieve a copy of the parameters of that VM/PM
255 * @details The ramsize and overcommit fields are used on the PM too */
256 void getParams(vm_params_t params);
257 /** @brief Sets the params of that VM/PM */
258 void setParams(vm_params_t params);
259 simgrid::Host* getHost() { return p_host; }
261 s_vm_params_t p_params;
267 #endif /* SURF_Host_INTERFACE_HPP_ */