| /* Copyright (C) 1991-2014 Free Software Foundation, Inc. | 
 |  * This file is part of the GNU C Library. | 
 |  * | 
 |  * The GNU C Library is free software; you can redistribute it and/or | 
 |  * modify it under the terms of the GNU Lesser General Public | 
 |  * License as published by the Free Software Foundation; either | 
 |  * version 2.1 of the License, or (at your option) any later version. | 
 |  * | 
 |  * The GNU C Library is distributed in the hope that it will be useful, | 
 |  * but WITHOUT ANY WARRANTY; without even the implied warranty of | 
 |  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU | 
 |  * Lesser General Public License for more details. | 
 |  * | 
 |  * You should have received a copy of the GNU Lesser General Public | 
 |  * License along with the GNU C Library; if not, see | 
 |  * <http://www.gnu.org/licenses/>.  */ | 
 |  | 
 | #include <errno.h> | 
 | #include <unistd.h> | 
 |  | 
 | /* Sleep USECONDS microseconds, or until a previously set timer goes off.  */ | 
 | int usleep(useconds_t useconds) | 
 | { | 
 | 	return ros_syscall(SYS_block, useconds, 0, 0, 0, 0, 0); | 
 | } |