1 /*
2  * Copyright (c) Wipro Technologies Ltd, 2002.  All Rights Reserved.
3  *
4  * This program is free software; you can redistribute it and/or modify it
5  * under the terms of version 2 of the GNU General Public License as
6  * published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it would be useful, but
9  * WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11  *
12  * You should have received a copy of the GNU General Public License along
13  * with this program; if not, write the Free Software Foundation, Inc.,
14  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
15  *
16  */
17 /**********************************************************
18  *
19  *    TEST IDENTIFIER	: sched_setparam01
20  *
21  *    EXECUTED BY	: anyone
22  *
23  *    TEST TITLE	: Basic test for sched_setparam(2)
24  *
25  *    TEST CASE TOTAL	: 1
26  *
27  *    AUTHOR		: Saji Kumar.V.R <saji.kumar@wipro.com>
28  *
29  *    SIGNALS
30  * 	Uses SIGUSR1 to pause before test if option set.
31  * 	(See the parse_opts(3) man page).
32  *
33  *    DESCRIPTION
34  *	This is a Phase I test for the sched_setparam(2) system call.
35  *	It is intended to provide a limited exposure of the system call.
36  *
37  * 	Setup:
38  * 	  Setup signal handling.
39  *	  Pause for SIGUSR1 if option specified.
40  *
41  * 	Test:
42  *	 Loop if the proper options are given.
43  * 	  Execute system call
44  *	  Check return code, if system call failed (return=-1)
45  *		Log the errno and Issue a FAIL message.
46  *	  Otherwise, Issue a PASS message.
47  *
48  * 	Cleanup:
49  * 	  Print errno log and/or timing stats if options given
50  *
51  * USAGE:  <for command-line>
52  *  sched_setparam01 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-f] [-p]
53  *			where,  -c n : Run n copies concurrently.
54  *				-e   : Turn on errno logging.
55  *				-h   : Show help screen
56  *				-f   : Turn off functional testing
57  *				-i n : Execute test n times.
58  *				-I x : Execute test for x seconds.
59  *				-p   : Pause for SIGUSR1 before starting
60  *				-P x : Pause for x seconds between iterations.
61  *				-t   : Turn on syscall timing.
62  *
63  ****************************************************************/
64 
65 #include <errno.h>
66 #include <sched.h>
67 #include "test.h"
68 
69 static void setup();
70 static void cleanup();
71 
72 char *TCID = "sched_setparam01";
73 int TST_TOTAL = 1;
74 
75 static struct sched_param param;
76 
77 int main(int ac, char **av)
78 {
79 
80 	int lc;
81 
82 	tst_parse_opts(ac, av, NULL, NULL);
83 
84 	setup();
85 
86 	for (lc = 0; TEST_LOOPING(lc); lc++) {
87 
88 		tst_count = 0;
89 
90 		/*
91 		 * Call sched_setparam(2) with pid=0 sothat it will
92 		 * set the scheduling parameters for the calling process
93 		 */
94 		TEST(sched_setparam(0, &param));
95 
96 		if (TEST_RETURN == 0) {
97 			tst_resm(TPASS, "sched_setparam() returned %ld",
98 				 TEST_RETURN);
99 		} else {
100 			tst_resm(TFAIL | TTERRNO,
101 				 "Test Failed, sched_setparam()" "returned %ld",
102 				 TEST_RETURN);
103 		}
104 	}
105 
106 	cleanup();
107 	tst_exit();
108 }
109 
110 /* setup() - performs all ONE TIME setup for this test */
111 void setup(void)
112 {
113 
114 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
115 
116 	TEST_PAUSE;
117 
118 	param.sched_priority = 0;
119 
120 }
121 
122 /*
123  *cleanup() -  performs all ONE TIME cleanup for this test at
124  *		completion or premature exit.
125  */
126 void cleanup(void)
127 {
128 }
129