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Implemented some functions for storage model.
[simgrid.git] / src / surf / storage.c
1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012. The SimGrid Team.
2  * All rights reserved.                                                                 */
3
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.             */
6
7 #include "xbt/ex.h"
8 #include "xbt/dict.h"
9 #include "portable.h"
10 #include "surf_private.h"
11 #include "surf/surf_resource.h"
12
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_storage, surf,
14                                 "Logging specific to the SURF storage module");
15
16 surf_model_t surf_storage_model = NULL;
17
18 typedef struct surf_storage {
19   s_surf_resource_t generic_resource;
20   const char* model;
21   const char* content; /*should be a dict */
22 } s_surf_storage_t, *surf_storage_t;
23
24 static surf_action_t storage_action_open(void *storage, const char* path, const char* mode)
25 {
26   return NULL;
27 }
28
29 static surf_action_t storage_action_close(void *storage, surf_file_t fp)
30 {
31   return NULL;
32 }
33
34 static surf_action_t storage_action_read(void *storage, void* ptr, size_t size, size_t nmemb, surf_file_t stream)
35 {
36   return NULL;
37 }
38
39 static surf_action_t storage_action_write(void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream)
40 {
41   return NULL;
42 }
43
44 static surf_action_t storage_action_stat(void *storage, int fd, void* buf)
45 {
46   return NULL;
47 }
48
49 static void* storage_create_resource(const char* id, const char* model,
50                                     const char* content, xbt_dict_t storage_properties)
51 {
52     XBT_DEBUG("Storage_create_resource '%s' at level SURF_STORAGE_LEVEL",id);
53     surf_storage_t storage = NULL;
54     xbt_assert(!surf_storage_resource_by_name(id),
55                 "Storage '%s' declared several times in the platform file",
56                 id);
57     storage = (surf_storage_t) surf_resource_new(sizeof(s_surf_storage_t),
58             surf_storage_model, id, storage_properties);
59     storage->model = model;
60     storage->content = content;
61     xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
62
63     return storage;
64 }
65
66 static void storage_finalize(void)
67 {
68   surf_model_exit(surf_storage_model);
69   surf_storage_model = NULL;
70 }
71
72 static void storage_update_actions_state(double now, double delta)
73 {
74
75 }
76
77 static double storage_share_resources(double NOW)
78 {
79   double min_action_duration = -1;
80   return min_action_duration;
81 }
82
83 static int storage_resource_used(void *resource_id)
84 {
85   THROW_UNIMPLEMENTED;
86   return 0;
87 }
88
89 static void storage_resources_state(void *id, tmgr_trace_event_t event_type,
90                                  double value, double time)
91 {
92   THROW_UNIMPLEMENTED;
93 }
94
95 static int storage_action_unref(surf_action_t action)
96 {
97   THROW_UNIMPLEMENTED;
98   return 0;
99 }
100
101 static void storage_action_cancel(surf_action_t action)
102 {
103   THROW_UNIMPLEMENTED;
104 }
105
106 static void storage_action_state_set(surf_action_t action, e_surf_action_state_t state)
107 {
108   THROW_UNIMPLEMENTED;
109 }
110
111 static void storage_action_suspend(surf_action_t action)
112 {
113   THROW_UNIMPLEMENTED;
114 }
115
116 static void storage_action_resume(surf_action_t action)
117 {
118   THROW_UNIMPLEMENTED;
119 }
120
121 static int storage_action_is_suspended(surf_action_t action)
122 {
123   THROW_UNIMPLEMENTED;
124   return 0;
125 }
126
127 static void storage_action_set_max_duration(surf_action_t action, double duration)
128 {
129   THROW_UNIMPLEMENTED;
130 }
131
132 static void storage_action_set_priority(surf_action_t action, double priority)
133 {
134   THROW_UNIMPLEMENTED;
135 }
136
137 static void parse_storage_init(sg_platf_storage_cbarg_t storage)
138 {
139   storage_create_resource(storage->id,
140       storage->model,
141       storage->content,
142       storage->properties);
143 }
144
145 static void storage_define_callbacks()
146 {
147   sg_platf_storage_add_cb(parse_storage_init);
148 }
149
150 static void surf_storage_model_init_internal(void)
151 {
152   XBT_DEBUG("surf_storage_model_init_internal");
153   surf_storage_model = surf_model_init();
154
155   surf_storage_model->name = "Storage";
156   surf_storage_model->action_unref = storage_action_unref;
157   surf_storage_model->action_cancel = storage_action_cancel;
158   surf_storage_model->action_state_set = storage_action_state_set;
159
160   surf_storage_model->model_private->finalize = storage_finalize;
161   surf_storage_model->model_private->update_actions_state = storage_update_actions_state;
162   surf_storage_model->model_private->share_resources = storage_share_resources;
163   surf_storage_model->model_private->resource_used = storage_resource_used;
164   surf_storage_model->model_private->update_resource_state = storage_resources_state;
165
166   surf_storage_model->suspend = storage_action_suspend;
167   surf_storage_model->resume = storage_action_resume;
168   surf_storage_model->is_suspended = storage_action_is_suspended;
169   surf_storage_model->set_max_duration = storage_action_set_max_duration;
170   surf_storage_model->set_priority = storage_action_set_priority;
171
172   surf_storage_model->extension.storage.open = storage_action_open;
173   surf_storage_model->extension.storage.close = storage_action_close;
174   surf_storage_model->extension.storage.read = storage_action_read;
175   surf_storage_model->extension.storage.write = storage_action_write;
176   surf_storage_model->extension.storage.stat = storage_action_stat;
177   surf_storage_model->extension.storage.create_resource = storage_create_resource;
178 }
179
180 void surf_storage_model_init_default(void)
181 {
182   surf_storage_model_init_internal();
183   storage_define_callbacks();
184
185   xbt_dynar_push(model_list, &surf_storage_model);
186 }