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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  * Test Name: getpriority01
     22  *
     23  * Test Description:
     24  *  Verify that getpriority() succeeds get the scheduling priority of
     25  *  the current process, process group or user.
     26  *
     27  * Expected Result:
     28  *  getpriority() should return the highest priority of the test process.
     29  *
     30  * Algorithm:
     31  *  Setup:
     32  *   Setup signal handling.
     33  *   Pause for SIGUSR1 if option specified.
     34  *
     35  *  Test:
     36  *   Loop if the proper options are given.
     37  *   Execute system call
     38  *   Check return code, if system call failed (return=-1)
     39  *   	Log the errno and Issue a FAIL message.
     40  *   Otherwise,
     41  *   	Verify the Functionality of system call
     42  *      if successful,
     43  *      	Issue Functionality-Pass message.
     44  *      Otherwise,
     45  *		Issue Functionality-Fail message.
     46  *  Cleanup:
     47  *   Print errno log and/or timing stats if options given
     48  *
     49  * Usage:  <for command-line>
     50  *  getpriority01 [-c n] [-i n] [-I x] [-P x] [-t]
     51  *     where,  -c n : Run n copies concurrently.
     52  *	       -i n : Execute test n times.
     53  *	       -I x : Execute test for x seconds.
     54  *	       -P x : Pause for x seconds between iterations.
     55  *	       -t   : Turn on syscall timing.
     56  *
     57  * HISTORY
     58  *	07/2001 Ported by Wayne Boyer
     59  *
     60  * RESTRICTIONS:
     61  *  None.
     62  *
     63  */
     64 
     65 #include <stdio.h>
     66 #include <unistd.h>
     67 #include <sys/types.h>
     68 #include <errno.h>
     69 #include <fcntl.h>
     70 #include <string.h>
     71 #include <signal.h>
     72 #include <sys/param.h>
     73 #include <sys/time.h>
     74 #include <sys/resource.h>
     75 
     76 #include "test.h"
     77 
     78 char *TCID = "getpriority01";
     79 int TST_TOTAL = 1;
     80 
     81 void setup();			/* setup function for the test */
     82 void cleanup();			/* cleanup function for the test */
     83 
     84 int prio_which[] = { PRIO_PROCESS, PRIO_PGRP, PRIO_USER };
     85 
     86 int main(int ac, char **av)
     87 {
     88 	int lc;
     89 	int ind;
     90 	int which;		/* scheduling priority category */
     91 
     92 	TST_TOTAL = sizeof(prio_which) / sizeof(int);
     93 
     94 	tst_parse_opts(ac, av, NULL, NULL);
     95 
     96 	setup();
     97 
     98 	for (lc = 0; TEST_LOOPING(lc); lc++) {
     99 
    100 		tst_count = 0;
    101 
    102 		for (ind = 0; ind < TST_TOTAL; ind++) {
    103 			which = prio_which[ind];
    104 
    105 			/*
    106 			 * Invoke getpriority with the specified
    107 			 * 'which' argument for the calling process.
    108 			 */
    109 			TEST(getpriority(which, 0));
    110 
    111 			if (TEST_RETURN < 0 && TEST_ERRNO != 0) {
    112 				tst_resm(TFAIL, "getpriority(%d, 0) "
    113 					 "Failed, errno=%d : %s",
    114 					 which, TEST_ERRNO,
    115 					 strerror(TEST_ERRNO));
    116 			} else {
    117 				tst_resm(TPASS, "getpriority(%d, 0) returned "
    118 					 "%ld priority value",
    119 					 which, TEST_RETURN);
    120 			}
    121 		}
    122 	}
    123 
    124 	cleanup();
    125 
    126 	tst_exit();
    127 }
    128 
    129 /*
    130  * setup() - performs all ONE TIME setup for this test.
    131  */
    132 void setup(void)
    133 {
    134 
    135 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
    136 
    137 	TEST_PAUSE;
    138 }
    139 
    140 /*
    141  * cleanup() - performs all ONE TIME cleanup for this test at
    142  *             completion or premature exit.
    143  */
    144 void cleanup(void)
    145 {
    146 
    147 }
    148