1 /* Copyright (c) 2013-2015. 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 "storage_interface.hpp"
8 #include "surf_private.h"
9 #include "xbt/file.h" /* xbt_getline */
11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_storage, surf,
12 "Logging specific to the SURF storage module");
15 xbt_lib_t storage_lib;
16 int ROUTING_STORAGE_LEVEL; //Routing for storagelevel
17 int ROUTING_STORAGE_HOST_LEVEL;
18 int SURF_STORAGE_LEVEL;
19 xbt_lib_t storage_type_lib;
20 int ROUTING_STORAGE_TYPE_LEVEL; //Routing for storage_type level
21 xbt_dynar_t mount_list = NULL;
22 StorageModel *surf_storage_model = NULL;
28 surf_callback(void, Storage*) storageCreatedCallbacks;
29 surf_callback(void, Storage*) storageDestructedCallbacks;
30 surf_callback(void, Storage*, e_surf_resource_state_t, e_surf_resource_state_t) storageStateChangedCallbacks;
31 surf_callback(void, StorageAction*, e_surf_action_state_t, e_surf_action_state_t) storageActionStateChangedCallbacks;
37 StorageModel::StorageModel()
43 StorageModel::~StorageModel(){
44 lmm_system_free(p_maxminSystem);
46 surf_storage_model = NULL;
48 xbt_dynar_free(&p_storageList);
55 Storage::Storage(Model *model, const char *name, xbt_dict_t props,
56 const char* type_id, char *content_name, char *content_type,
58 : Resource(model, name, props)
59 , p_contentType(content_type)
60 , m_size(size), m_usedSize(0)
61 , p_typeId(xbt_strdup(type_id))
62 , p_writeActions(xbt_dynar_new(sizeof(Action*),NULL))
64 p_content = parseContent(content_name);
65 setState(SURF_RESOURCE_ON);
68 Storage::Storage(Model *model, const char *name, xbt_dict_t props,
69 lmm_system_t maxminSystem, double bread, double bwrite,
70 double bconnection, const char* type_id, char *content_name,
71 char *content_type, sg_size_t size, char *attach)
72 : Resource(model, name, props, lmm_constraint_new(maxminSystem, this, bconnection))
73 , p_contentType(content_type)
74 , m_size(size), m_usedSize(0)
75 , p_typeId(xbt_strdup(type_id))
76 , p_writeActions(xbt_dynar_new(sizeof(Action*),NULL)) {
77 p_content = parseContent(content_name);
78 p_attach = xbt_strdup(attach);
79 setState(SURF_RESOURCE_ON);
80 XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%llu'", bconnection, bread, bwrite, size);
81 p_constraintRead = lmm_constraint_new(maxminSystem, this, bread);
82 p_constraintWrite = lmm_constraint_new(maxminSystem, this, bwrite);
86 surf_callback_emit(storageDestructedCallbacks, this);
87 xbt_dict_free(&p_content);
88 xbt_dynar_free(&p_writeActions);
94 xbt_dict_t Storage::parseContent(char *filename)
97 if ((!filename) || (strcmp(filename, "") == 0))
100 xbt_dict_t parse_content = xbt_dict_new_homogeneous(xbt_free_f);
103 file = surf_fopen(filename, "r");
105 xbt_die("Cannot open file '%s' (path=%s)", filename,
106 xbt_str_join(surf_path, ":"));
114 while ((read = xbt_getline(&line, &len, file)) != -1) {
116 if(sscanf(line,"%s %llu", path, &size) == 2) {
118 sg_size_t *psize = xbt_new(sg_size_t, 1);
120 xbt_dict_set(parse_content,path,psize,NULL);
122 xbt_die("Be sure of passing a good format for content file.\n");
128 return parse_content;
131 bool Storage::isUsed()
137 void Storage::updateState(tmgr_trace_event_t /*event_type*/, double /*value*/, double /*date*/)
142 void Storage::setState(e_surf_resource_state_t state)
144 e_surf_resource_state_t old = Resource::getState();
145 Resource::setState(state);
146 surf_callback_emit(storageStateChangedCallbacks, this, old, state);
149 xbt_dict_t Storage::getContent()
151 /* For the moment this action has no cost, but in the future we could take in account access latency of the disk */
153 xbt_dict_t content_dict = xbt_dict_new_homogeneous(NULL);
154 xbt_dict_cursor_t cursor = NULL;
158 xbt_dict_foreach(p_content, cursor, file, psize){
159 xbt_dict_set(content_dict,file,psize,NULL);
164 sg_size_t Storage::getSize(){
168 sg_size_t Storage::getFreeSize(){
169 return m_size - m_usedSize;
172 sg_size_t Storage::getUsedSize(){
179 StorageAction::StorageAction(Model *model, double cost, bool failed,
180 Storage *storage, e_surf_action_storage_type_t type)
181 : Action(model, cost, failed)
182 , m_type(type), p_storage(storage), p_file(NULL){
186 StorageAction::StorageAction(Model *model, double cost, bool failed, lmm_variable_t var,
187 Storage *storage, e_surf_action_storage_type_t type)
188 : Action(model, cost, failed, var)
189 , m_type(type), p_storage(storage), p_file(NULL){
193 void StorageAction::setState(e_surf_action_state_t state){
194 e_surf_action_state_t old = getState();
195 Action::setState(state);
196 surf_callback_emit(storageActionStateChangedCallbacks, this, old, state);