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(int) MSG_file_unlink(msg_file_t fd);
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(int) MSG_file_unlink(msg_file_t fd);