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, ¶m)); 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