1 /* Copyright (c) 2004-2013. 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 "msg_private.h"
11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_io, msg,
12 "Logging specific to MSG (io)");
14 /** @addtogroup msg_file_management
15 * \htmlonly <!-- DOXYGEN_NAVBAR_LABEL="Files" --> \endhtmlonly
16 * (#msg_file_t) and the functions for managing it.
21 /********************************* File **************************************/
22 void __MSG_file_get_info(msg_file_t fd){
23 xbt_dynar_t info = simcall_file_get_info(fd->simdata->smx_file);
24 sg_storage_size_t *psize;
26 fd->info->content_type = xbt_dynar_pop_as(info, char *);
27 fd->info->storage_type = xbt_dynar_pop_as(info, char *);
28 fd->info->storageId = xbt_dynar_pop_as(info, char *);
29 fd->info->mount_point = xbt_dynar_pop_as(info, char *);
30 psize = xbt_dynar_pop_as(info, sg_storage_size_t*);
31 fd->info->size = *psize;
33 xbt_dynar_free_container(&info);
36 /** \ingroup msg_file_management
38 * \brief Set the user data of a #msg_file_t.
40 * This functions checks whether some data has already been associated to \a file
41 or not and attach \a data to \a file if it is possible.
43 msg_error_t MSG_file_set_data(msg_file_t fd, void *data)
45 SIMIX_file_set_data(fd->simdata->smx_file,data);
50 /** \ingroup msg_file_management
52 * \brief Return the user data of a #msg_file_t.
54 * This functions checks whether \a file is a valid pointer or not and return
55 the user data associated to \a file if it is possible.
57 void *MSG_file_get_data(msg_file_t fd)
59 return SIMIX_file_get_data(fd->simdata->smx_file);
62 /** \ingroup msg_file_management
63 * \brief Display information related to a file descriptor
65 * \param fd is a the file descriptor
68 void MSG_file_dump (msg_file_t fd){
69 // THROW_UNIMPLEMENTED;
70 /* Update the cached information first */
71 __MSG_file_get_info(fd);
72 XBT_INFO("File Descriptor information:\n"
73 "\t\tFull name: '%s'\n"
74 "\t\tSize: %" PRIu64 "\n"
75 "\t\tMount point: '%s'\n"
76 "\t\tStorage Id: '%s'\n"
77 "\t\tStorage Type: '%s'\n"
78 "\t\tContent Type: '%s'",
79 fd->fullname, fd->info->size, fd->info->mount_point,
80 fd->info->storageId, fd->info->storage_type,
81 fd->info->content_type);
84 /** \ingroup msg_file_management
87 * \param size of the file to read
88 * \param fd is a the file descriptor
89 * \return the number of bytes successfully read
91 sg_storage_size_t MSG_file_read(msg_file_t fd, sg_storage_size_t size)
93 return simcall_file_read(fd->simdata->smx_file, size);
96 /** \ingroup msg_file_management
97 * \brief Write into a file
99 * \param size of the file to write
100 * \param fd is a the file descriptor
101 * \return the number of bytes successfully write
103 sg_storage_size_t MSG_file_write(msg_file_t fd, sg_storage_size_t size)
105 return simcall_file_write(fd->simdata->smx_file, size);
108 /** \ingroup msg_file_management
109 * \brief Opens the file whose name is the string pointed to by path
111 * \param mount is the mount point where find the file is located
112 * \param fullname is the file location on the storage
113 * \param data user data to attach to the file
115 * \return An #msg_file_t associated to the file
117 msg_file_t MSG_file_open(const char* mount, const char* fullname, void* data)
119 msg_file_t file = xbt_new(s_msg_file_t,1);
120 file->fullname = xbt_strdup(fullname);
121 file->simdata = xbt_new0(s_simdata_file_t,1);
122 file->info = xbt_new0(s_msg_file_info_t,1);
123 file->simdata->smx_file = simcall_file_open(mount, fullname);
124 SIMIX_file_set_data(file->simdata->smx_file, data);
128 /** \ingroup msg_file_management
129 * \brief Close the file
131 * \param fd is the file to close
132 * \return 0 on success or 1 on error
134 int MSG_file_close(msg_file_t fd)
136 int res = simcall_file_close(fd->simdata->smx_file);
138 xbt_free(fd->simdata);
144 /** \ingroup msg_file_management
145 * \brief Unlink the file pointed by fd
147 * \param fd is the file descriptor (#msg_file_t)
148 * \return 0 on success or 1 on error
150 int MSG_file_unlink(msg_file_t fd)
152 int res = simcall_file_unlink(fd->simdata->smx_file);
154 xbt_free(fd->simdata);
160 /** \ingroup msg_file_management
161 * \brief Return the size of a file
163 * \param fd is the file descriptor (#msg_file_t)
164 * \return the size of the file (as a sg_storage_size_t)
166 sg_storage_size_t MSG_file_get_size(msg_file_t fd){
167 return simcall_file_get_size(fd->simdata->smx_file);
170 /** \ingroup msg_file_management
171 * \brief Search for file
173 * \param mount is the mount point where find the file is located
174 * \param path the file regex to find
175 * \return a xbt_dict_t of file where key is the name of file and the
176 * value the msg_stat_t corresponding to the key
178 xbt_dict_t MSG_file_ls(const char *mount, const char *path)
180 xbt_assert(path,"You must set path");
181 int size = strlen(path);
182 if(size && path[size-1] != '/')
184 char *new_path = bprintf("%s/",path);
185 XBT_DEBUG("Change '%s' for '%s'",path,new_path);
186 xbt_dict_t dict = simcall_file_ls(mount, new_path);
191 return simcall_file_ls(mount, path);
195 * Set the file position indicator in the msg_file_t by adding offset bytes
196 * to the position specified by whence (either SEEK_SET, SEEK_CUR, or SEEK_END).
198 msg_error_t MSG_file_seek (msg_file_t fd, sg_storage_size_t offset, int whence)
204 /********************************* Storage **************************************/
206 /** @addtogroup msg_storage_management
207 * \htmlonly <!-- DOXYGEN_NAVBAR_LABEL="Storages" --> \endhtmlonly
208 * (#msg_storage_t) and the functions for managing it.
212 msg_storage_t __MSG_storage_create(smx_storage_t storage)
214 const char *name = SIMIX_storage_get_name(storage);
215 msg_storage_priv_t storage_private = xbt_new0(s_msg_storage_priv_t, 1);
216 xbt_lib_set(storage_lib,name,MSG_STORAGE_LEVEL,storage_private);
217 return xbt_lib_get_elm_or_null(storage_lib, name);
221 * \brief Destroys a storage (internal call only)
223 void __MSG_storage_destroy(msg_storage_priv_t storage) {
228 /** \ingroup msg_storage_management
230 * \brief Returns the name of the #msg_storage_t.
232 * This functions checks whether a storage is a valid pointer or not and return its name.
234 const char *MSG_storage_get_name(msg_storage_t storage) {
235 xbt_assert((storage != NULL), "Invalid parameters");
236 return SIMIX_storage_get_name(storage);
239 /** \ingroup msg_storage_management
240 * \brief Returns the free space size of a storage element
241 * \param name the name of a storage
242 * \return the free space size of the storage element (as a sg_storage_size_t)
244 sg_storage_size_t MSG_storage_get_free_size(const char* name){
245 return simcall_storage_get_free_size(name);
248 /** \ingroup msg_storage_management
249 * \brief Returns the used space size of a storage element
250 * \param name the name of a storage
251 * \return the used space size of the storage element (as a sg_storage_size_t)
253 sg_storage_size_t MSG_storage_get_used_size(const char* name){
254 return simcall_storage_get_used_size(name);
257 /** \ingroup msg_storage_management
258 * \brief Returns a xbt_dict_t consisting of the list of properties assigned to this storage
259 * \param storage a storage
260 * \return a dict containing the properties
262 xbt_dict_t MSG_storage_get_properties(msg_storage_t storage)
264 xbt_assert((storage != NULL), "Invalid parameters (storage is NULL)");
265 return (simcall_storage_get_properties(storage));
268 /** \ingroup msg_storage_management
269 * \brief Change the value of a given storage property
271 * \param storage a storage
272 * \param name a property name
273 * \param value what to change the property to
274 * \param free_ctn the freeing function to use to kill the value on need
276 void MSG_storage_set_property_value(msg_storage_t storage, const char *name, char *value,void_f_pvoid_t free_ctn) {
277 xbt_dict_set(MSG_storage_get_properties(storage), name, value,free_ctn);
280 /** \ingroup msg_storage_management
281 * \brief Finds a msg_storage_t using its name.
282 * \param name the name of a storage
283 * \return the corresponding storage
285 msg_storage_t MSG_storage_get_by_name(const char *name)
287 return (msg_storage_t) xbt_lib_get_elm_or_null(storage_lib,name);
290 /** \ingroup msg_storage_management
291 * \brief Returns a dynar containing all the storage elements declared at a given point of time
294 xbt_dynar_t MSG_storages_as_dynar(void) {
296 xbt_lib_cursor_t cursor;
299 xbt_dynar_t res = xbt_dynar_new(sizeof(msg_storage_t),NULL);
301 xbt_lib_foreach(storage_lib, cursor, key, data) {
302 if(routing_get_network_element_type(key) == MSG_STORAGE_LEVEL) {
303 xbt_dictelm_t elm = xbt_dict_cursor_get_elm(cursor);
304 xbt_dynar_push(res, &elm);
311 /** \ingroup msg_storage_management
313 * \brief Set the user data of a #msg_storage_t.
314 * This functions checks whether some data has already been associated to \a storage
315 or not and attach \a data to \a storage if it is possible.
317 msg_error_t MSG_storage_set_data(msg_storage_t storage, void *data)
319 SIMIX_storage_set_data(storage,data);
324 /** \ingroup msg_host_management
326 * \brief Returns the user data of a #msg_storage_t.
328 * This functions checks whether \a storage is a valid pointer or not and returns
329 the user data associated to \a storage if it is possible.
331 void *MSG_storage_get_data(msg_storage_t storage)
333 return SIMIX_storage_get_data(storage);
336 /** \ingroup msg_storage_management
338 * \brief Returns the content (file list) of a #msg_storage_t.
339 * \param storage a storage
340 * \return The content of this storage element as a dict (full path file => size)
342 xbt_dict_t MSG_storage_get_content(msg_storage_t storage)
344 return SIMIX_storage_get_content(storage);
347 sg_storage_size_t MSG_storage_get_size(msg_storage_t storage)
349 return SIMIX_storage_get_size(storage);
353 * Rename the file in the contents of its associated storage.
355 msg_error_t MSG_storage_file_rename(msg_storage_t storage, const char* src, const char* dest)
357 simcall_storage_file_rename(storage, src, dest);
362 * Move a file to another location. Depending on the values of dest, dest, mount,
363 * and fullname, this move can be local or remote and, within a host, on the same
364 * mounted disk or between mounted disks.
367 msg_error_t MSG_storage_file_move (msg_file_t fd, msg_host_t dest, char* mount, char* fullname)