-XBT_PUBLIC(msg_file_t) MSG_file_open(const char* fullpath, void* data);
-XBT_PUBLIC(void*) MSG_file_get_data(msg_file_t fd);
-XBT_PUBLIC(msg_error_t) MSG_file_set_data(msg_file_t fd, void * data);
-XBT_PUBLIC(int) MSG_file_close(msg_file_t fd);
-XBT_PUBLIC(sg_size_t) MSG_file_get_size(msg_file_t fd);
-XBT_PUBLIC(void) MSG_file_dump(msg_file_t fd);
-XBT_PUBLIC(msg_error_t) MSG_file_unlink(msg_file_t fd);
-XBT_PUBLIC(msg_error_t) MSG_file_seek(msg_file_t fd, sg_offset_t offset, int origin);
-XBT_PUBLIC(sg_size_t) MSG_file_tell (msg_file_t fd);
-XBT_PUBLIC(const char *) MSG_file_get_name(msg_file_t file);
-XBT_PUBLIC(msg_error_t) MSG_file_move(msg_file_t fd, const char* fullpath);