| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* |
| * NAME |
| * setpriority01.c |
| * |
| * DESCRIPTION |
| * setpriority01 - set the priority for the test process lower. |
| * |
| * CALLS |
| * setpriority() |
| * |
| * ALGORITHM |
| * loop if that option was specified |
| * issue the system call |
| * read back the priority with getpriority() |
| * check the errno value |
| * if errno == 0 and the new priority == the set priority |
| * then issue a PASS message |
| * otherwise, the tests fails |
| * issue a FAIL message |
| * break any remaining tests |
| * call cleanup |
| * |
| * USAGE: <for command-line> |
| * setpriority01 [-c n] [-f] [-i n] [-I x] [-p x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -f : Turn off functionality Testing. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * HISTORY |
| * 03/2001 - Written by Wayne Boyer |
| * |
| * RESTRICTIONS |
| * none |
| */ |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| #include <errno.h> |
| #include <sys/time.h> |
| #include <sys/resource.h> |
| |
| void cleanup(void); |
| void setup(void); |
| |
| char *TCID = "setpriority01"; |
| int TST_TOTAL = 1; |
| extern int Tst_count; |
| |
| int main(int ac, char **av) |
| { |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| int priority; |
| int new_val = 2; /* lower our priority from 0 to new_val */ |
| |
| /* parse standard options */ |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| } |
| |
| setup(); /* global setup */ |
| |
| /* The following loop checks looping state if -i option given */ |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| /* reset Tst_count in case we are looping */ |
| Tst_count = 0; |
| |
| /* |
| * Lower the priority of this process from a default of 0 |
| * to a new value of 2. Then read the value using getpriority() |
| * to verify the change. |
| */ |
| |
| /* |
| * We need to be careful here. We could possibly set our |
| * priority lower using PRIO_USER and then have no way |
| * to set it back. So, let's use PRIO_PROCESS and make |
| * sure we affect this test only. |
| */ |
| |
| /* call the system call with the TEST() macro */ |
| TEST(setpriority(PRIO_PROCESS, 0, new_val)); |
| |
| if (TEST_RETURN != 0) { |
| tst_resm(TFAIL, "call failed - errno = %d - " |
| "%s", TEST_ERRNO, strerror(TEST_ERRNO)); |
| continue; |
| } |
| |
| if (STD_FUNCTIONAL_TEST) { |
| /* get the priority that we just set */ |
| priority = getpriority(PRIO_PROCESS, 0); |
| |
| if (errno == -1) { |
| tst_brkm(TBROK, cleanup, "getpriority call " |
| "failed - errno = %d - %s", errno, |
| strerror(errno)); |
| } |
| |
| if (priority == new_val) { |
| tst_resm(TPASS, "functionality is correct"); |
| } else { |
| tst_resm(TFAIL, "current priority (%d) and new " |
| "priority (%d) do not match", |
| priority, new_val); |
| } |
| } else { |
| tst_resm(TPASS, "call succeeded"); |
| } |
| } |
| |
| cleanup(); |
| |
| /*NOTREACHED*/ return 0; |
| |
| } |
| |
| /* |
| * setup() - performs all the ONE TIME setup for this test. |
| */ |
| void setup(void) |
| { |
| /* capture signals */ |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| /* Pause if that option was specified */ |
| TEST_PAUSE; |
| } |
| |
| /* |
| * cleanup() - performs all the ONE TIME cleanup for this test at completion |
| * or premature exit. |
| */ |
| void cleanup(void) |
| { |
| /* |
| * print timing stats if that option was specified. |
| * print errno log if that option was specified. |
| */ |
| TEST_CLEANUP; |
| |
| /* exit with return code appropriate for results */ |
| tst_exit(); |
| } |