+/**
+ * \ingroup msg_file_management
+ * \brief Returns the current value of the position indicator of the file
+ *
+ * \param fd : file object that identifies the stream
+ * \return On success, the current value of the position indicator is returned.
+ *
+ */
+sg_size_t MSG_file_tell(msg_file_t fd)
+{
+ msg_file_priv_t priv = MSG_file_priv(fd);
+ return simcall_file_tell(priv->simdata->smx_file);
+}
+
+const char *MSG_file_get_name(msg_file_t fd) {
+ xbt_assert((fd != NULL), "Invalid parameters");
+ msg_file_priv_t priv = MSG_file_priv(fd);
+ return priv->fullpath;
+}
+
+/**
+ * \ingroup msg_file_management
+ * \brief Move a file to another location on the *same mount point*.
+ *
+ */
+msg_error_t MSG_file_move (msg_file_t fd, const char* fullpath)
+{
+ msg_file_priv_t priv = MSG_file_priv(fd);
+ return simcall_file_move(priv->simdata->smx_file, fullpath);
+}
+
+/**
+ * \ingroup msg_file_management
+ * \brief Copy a file to another location on a remote host.
+ * \param file : the file to move
+ * \param host : the remote host where the file has to be copied
+ * \param fullpath : the complete path destination on the remote host
+ * \return If successful, the function returns MSG_OK. Otherwise, it returns
+ * MSG_TASK_CANCELED.
+ */
+msg_error_t MSG_file_rcopy (msg_file_t file, msg_host_t host, const char* fullpath)
+{
+ msg_file_priv_t file_priv = MSG_file_priv(file);
+ sg_size_t read_size;
+
+ /* Find the host where the file is physically located and read it */
+ msg_storage_t storage_src =(msg_storage_t) xbt_lib_get_elm_or_null(storage_lib, file_priv->storageId);
+ msg_storage_priv_t storage_priv_src = MSG_storage_priv(storage_src);
+ msg_host_t attached_host = MSG_get_host_by_name(storage_priv_src->hostname);
+ read_size = simcall_file_read(file_priv->simdata->smx_file, file_priv->size, attached_host);
+
+ /* Find the real host destination where the file will be physically stored */
+ xbt_dict_cursor_t cursor = NULL;
+ char *mount_name, *storage_name, *file_mount_name, *host_name_dest;
+ msg_storage_t storage_dest = NULL;
+ msg_host_t host_dest;
+ size_t longest_prefix_length = 0;
+
+ xbt_dict_t storage_list = simcall_host_get_mounted_storage_list(host);
+ xbt_dict_foreach(storage_list,cursor,mount_name,storage_name){
+ file_mount_name = (char *) xbt_malloc ((strlen(mount_name)+1));
+ strncpy(file_mount_name,fullpath,strlen(mount_name)+1);
+ file_mount_name[strlen(mount_name)] = '\0';
+
+ if(!strcmp(file_mount_name,mount_name) && strlen(mount_name)>longest_prefix_length){
+ /* The current mount name is found in the full path and is bigger than the previous*/
+ longest_prefix_length = strlen(mount_name);
+ storage_dest = (msg_storage_t) xbt_lib_get_elm_or_null(storage_lib, storage_name);
+ }
+ free(file_mount_name);
+ }
+ if(longest_prefix_length>0){
+ /* Mount point found, retrieve the host the storage is attached to */
+ msg_storage_priv_t storage_dest_priv = MSG_storage_priv(storage_dest);
+ host_name_dest = (char*)storage_dest_priv->hostname;
+ host_dest = MSG_get_host_by_name(host_name_dest);
+
+ }else{
+ XBT_WARN("Can't find mount point for '%s' on destination host '%s'", fullpath, SIMIX_host_get_name(host));
+ return MSG_TASK_CANCELED;
+ }
+
+ XBT_DEBUG("Initiate data transfer of %llu bytes between %s and %s.", read_size, storage_priv_src->hostname, host_name_dest);
+ msg_host_t *m_host_list = NULL;
+ m_host_list = calloc(2, sizeof(msg_host_t));
+
+ m_host_list[0] = attached_host;
+ m_host_list[1] = host_dest;
+ double computation_amount[] = { 0, 0 };
+ double communication_amount[] = { 0, (double)read_size, 0, 0 };
+
+ msg_task_t task = MSG_parallel_task_create("file transfer for write", 2, m_host_list, computation_amount, communication_amount, NULL);
+ msg_error_t transfer = MSG_parallel_task_execute(task);
+ MSG_task_destroy(task);
+ free(m_host_list);
+ if(transfer != MSG_OK){
+ if (transfer == MSG_HOST_FAILURE)
+ XBT_WARN("Transfer error, %s remote host just turned off!", host_name_dest);
+ if (transfer == MSG_TASK_CANCELED)
+ XBT_WARN("Transfer error, task has been canceled!");
+
+ return -1;
+ }
+
+ /* Create file on remote host, write it and close it */
+ smx_file_t smx_file = simcall_file_open(fullpath, host_dest);
+ simcall_file_write(smx_file, read_size, host_dest);
+ simcall_file_close(smx_file, host_dest);
+ return MSG_OK;
+
+}
+
+/**
+ * \ingroup msg_file_management
+ * \brief Move a file to another location on a remote host.
+ * \param file : the file to move
+ * \param host : the remote host where the file has to be moved
+ * \param fullpath : the complete path destination on the remote host
+ * \return If successful, the function returns MSG_OK. Otherwise, it returns
+ * MSG_TASK_CANCELED.
+ */
+msg_error_t MSG_file_rmove (msg_file_t file, msg_host_t host, const char* fullpath)
+{
+ msg_error_t res = MSG_file_rcopy(file, host, fullpath);
+ MSG_file_unlink(file);
+ return res;
+}
+
+/**
+ * \brief Destroys a file (internal call only)
+ */
+void __MSG_file_destroy(msg_file_priv_t file) {
+ xbt_free(file->fullpath);
+ xbt_free(file->simdata);
+ xbt_free(file);
+}
+/********************************* Storage **************************************/
+
+/** @addtogroup msg_storage_management
+ * \htmlonly <!-- DOXYGEN_NAVBAR_LABEL="Storages" --> \endhtmlonly
+ * (#msg_storage_t) and the functions for managing it.
+ *
+ */
+
+msg_storage_t __MSG_storage_create(smx_storage_t storage)
+{
+ const char *name = SIMIX_storage_get_name(storage);
+ const char *host = SIMIX_storage_get_host(storage);
+ msg_storage_priv_t storage_private = xbt_new0(s_msg_storage_priv_t, 1);
+ storage_private->hostname = host;
+ xbt_lib_set(storage_lib,name,MSG_STORAGE_LEVEL,storage_private);
+ return xbt_lib_get_elm_or_null(storage_lib, name);
+}
+
+/**
+ * \brief Destroys a storage (internal call only)
+ */
+void __MSG_storage_destroy(msg_storage_priv_t storage) {
+ free(storage);
+}
+
+
+/** \ingroup msg_storage_management
+ *
+ * \brief Returns the name of the #msg_storage_t.
+ *
+ * This functions checks whether a storage is a valid pointer or not and return its name.
+ */
+const char *MSG_storage_get_name(msg_storage_t storage) {
+ xbt_assert((storage != NULL), "Invalid parameters");
+ return SIMIX_storage_get_name(storage);
+}
+
+/** \ingroup msg_storage_management
+ * \brief Returns the free space size of a storage element
+ * \param storage a storage
+ * \return the free space size of the storage element (as a #sg_size_t)
+ */
+sg_size_t MSG_storage_get_free_size(msg_storage_t storage){
+ return simcall_storage_get_free_size(storage);
+}
+
+/** \ingroup msg_storage_management
+ * \brief Returns the used space size of a storage element
+ * \param storage a storage
+ * \return the used space size of the storage element (as a #sg_size_t)
+ */
+sg_size_t MSG_storage_get_used_size(msg_storage_t storage){
+ return simcall_storage_get_used_size(storage);
+}
+
+/** \ingroup msg_storage_management
+ * \brief Returns a xbt_dict_t consisting of the list of properties assigned to this storage
+ * \param storage a storage
+ * \return a dict containing the properties
+ */
+xbt_dict_t MSG_storage_get_properties(msg_storage_t storage)
+{
+ xbt_assert((storage != NULL), "Invalid parameters (storage is NULL)");
+ return (simcall_storage_get_properties(storage));
+}
+
+/** \ingroup msg_storage_management
+ * \brief Change the value of a given storage property
+ *
+ * \param storage a storage
+ * \param name a property name
+ * \param value what to change the property to
+ * \param free_ctn the freeing function to use to kill the value on need
+ */
+void MSG_storage_set_property_value(msg_storage_t storage, const char *name, char *value,void_f_pvoid_t free_ctn) {
+ xbt_dict_set(MSG_storage_get_properties(storage), name, value,free_ctn);
+}
+
+/** \ingroup msg_storage_management
+ * \brief Finds a msg_storage_t using its name.
+ * \param name the name of a storage
+ * \return the corresponding storage
+ */
+msg_storage_t MSG_storage_get_by_name(const char *name)
+{
+ return (msg_storage_t) xbt_lib_get_elm_or_null(storage_lib,name);
+}
+
+/** \ingroup msg_storage_management
+ * \brief Returns a dynar containing all the storage elements declared at a given point of time
+ *
+ */
+xbt_dynar_t MSG_storages_as_dynar(void) {
+
+ xbt_lib_cursor_t cursor;
+ char *key;
+ void **data;
+ xbt_dynar_t res = xbt_dynar_new(sizeof(msg_storage_t),NULL);
+
+ xbt_lib_foreach(storage_lib, cursor, key, data) {
+ if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), MSG_STORAGE_LEVEL) != NULL) {
+ xbt_dictelm_t elm = xbt_dict_cursor_get_elm(cursor);
+ xbt_dynar_push(res, &elm);
+ }