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      1 /*
      2  *
      3  *   Copyright (c) International Business Machines  Corp., 2001
      4  *
      5  *   This program is free software;  you can redistribute it and/or modify
      6  *   it under the terms of the GNU General Public License as published by
      7  *   the Free Software Foundation; either version 2 of the License, or
      8  *   (at your option) any later version.
      9  *
     10  *   This program is distributed in the hope that it will be useful,
     11  *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
     12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
     13  *   the GNU General Public License for more details.
     14  *
     15  *   You should have received a copy of the GNU General Public License
     16  *   along with this program;  if not, write to the Free Software
     17  *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     18  */
     19 
     20 /*
     21  * NAME
     22  *	sched_getscheduler02.C
     23  *
     24  * DESCRIPTION
     25  *	To check for the errno ESRCH
     26  *
     27  * ALGORITHM
     28  *	Pass an invalid pid to sched_getscheduler() and test for ESRCH.
     29  *
     30  * USAGE:  <for command-line>
     31  *  sched_getscheduler02 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
     32  *     where,  -c n : Run n copies concurrently.
     33  *             -e   : Turn on errno logging.
     34  *             -i n : Execute test n times.
     35  *             -I x : Execute test for x seconds.
     36  *             -P x : Pause for x seconds between iterations.
     37  *             -t   : Turn on syscall timing.
     38  *
     39  * RESTRICTION
     40  *	None
     41  */
     42 
     43 #include <stdio.h>
     44 #include <sched.h>
     45 #include <errno.h>
     46 #include "test.h"
     47 
     48 char *TCID = "sched_getscheduler02";
     49 int TST_TOTAL = 1;
     50 
     51 static pid_t unused_pid;
     52 
     53 void setup(void);
     54 void cleanup(void);
     55 
     56 int main(int ac, char **av)
     57 {
     58 	int lc;
     59 
     60 	tst_parse_opts(ac, av, NULL, NULL);
     61 
     62 	setup();
     63 
     64 	for (lc = 0; TEST_LOOPING(lc); lc++) {
     65 		/* reset tst_count in case we are looping */
     66 		tst_count = 0;
     67 
     68 		TEST(sched_getscheduler(unused_pid));
     69 
     70 		if (TEST_RETURN != -1) {
     71 			tst_resm(TFAIL, "sched_getscheduler(2) passed "
     72 				 "unexpectedly");
     73 			continue;
     74 		}
     75 
     76 		if (errno != ESRCH) {
     77 			tst_resm(TFAIL, "Expected ESRCH, got %d", errno);
     78 		} else {
     79 			tst_resm(TPASS, "call failed with ESRCH");
     80 		}
     81 	}
     82 	cleanup();
     83 	tst_exit();
     84 
     85 }
     86 
     87 /*
     88  * setup() - performs all ONE TIME setup for this test.
     89  */
     90 void setup(void)
     91 {
     92 	unused_pid = tst_get_unused_pid(cleanup);
     93 
     94 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
     95 
     96 	TEST_PAUSE;
     97 }
     98 
     99 /*
    100  * cleanup() - performs all ONE TIME cleanup for this test at
    101  *	       completion or premature exit.
    102  */
    103 void cleanup(void)
    104 {
    105 
    106 }
    107