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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms
      5  * of the Common Development and Distribution License
      6  * (the "License").  You may not use this file except
      7  * in compliance with the License.
      8  *
      9  * You can obtain a copy of the license at
     10  * src/OPENSOLARIS.LICENSE
     11  * or http://www.opensolaris.org/os/licensing.
     12  * See the License for the specific language governing
     13  * permissions and limitations under the License.
     14  *
     15  * When distributing Covered Code, include this CDDL
     16  * HEADER in each file and include the License file at
     17  * usr/src/OPENSOLARIS.LICENSE.  If applicable,
     18  * add the following below this CDDL HEADER, with the
     19  * fields enclosed by brackets "[]" replaced with your
     20  * own identifying information: Portions Copyright [yyyy]
     21  * [name of copyright owner]
     22  *
     23  * CDDL HEADER END
     24  */
     25 
     26 /*
     27  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
     28  * Use is subject to license terms.
     29  */
     30 
     31 #include <stdio.h>
     32 #include <stdlib.h>
     33 #include <unistd.h>
     34 #include <ucontext.h>
     35 
     36 #include "libmicro.h"
     37 
     38 int
     39 benchmark_init()
     40 {
     41 
     42 	(void) sprintf(lm_usage, "notes: measures setcontext()\n");
     43 
     44 	lm_tsdsize = 0;
     45 
     46 	return (0);
     47 }
     48 
     49 /*ARGSUSED*/
     50 int
     51 benchmark(void *tsd, result_t *res)
     52 {
     53 	volatile int		i;
     54 
     55 	ucontext_t uc;
     56 
     57 	i = 0;
     58 
     59 	(void) getcontext(&uc);
     60 
     61 	if (i++ < lm_optB)
     62 		(void) setcontext(&uc);
     63 
     64 	res->re_count += lm_optB;
     65 
     66 	return (0);
     67 }
     68