@@ -1,196 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
+ * Copyright (c) 2021, BELLSOFT. All rights reserved.
* Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
+ * AUTHOR: Saji Kumar.V.R <saji.kumar@wipro.com>
*/
-/**********************************************************
- *
- * TEST IDENTIFIER : sched_setparam03
- *
- * EXECUTED BY : root / superuser
- *
- * TEST TITLE : Checks functionality for sched_setparam(2) for pid!=0
- *
- * TEST CASE TOTAL : 1
- *
- * AUTHOR : Saji Kumar.V.R <saji.kumar@wipro.com>
- *
- * SIGNALS
- * Uses SIGUSR1 to pause before test if option set.
- * (See the parse_opts(3) man page).
- *
- * DESCRIPTION
- * This test forks a child & changes its parent's scheduling priority
- *
- * Setup:
- * Setup signal handling.
- * Pause for SIGUSR1 if option specified.
- * Change scheduling policy to SCHED_FIFO
- *
- * Test:
- * Loop if the proper options are given.
- * Fork a child
- *
- * CHILD:
- * Changes scheduling priority for parent
- *
- * PARENT:
- * If scheduling priority is set properly,
- * TEST passed
- * else
- * TEST failed
- *
- * Cleanup:
- * Print errno log and/or timing stats if options given
+
+/*\
+ * [Description]
*
- * USAGE: <for command-line>
- * sched_setparam03 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-f] [-p]
- * where, -c n : Run n copies concurrently.
- * -e : Turn on errno logging.
- * -h : Show help screen
- * -f : Turn off functional testing
- * -i n : Execute test n times.
- * -I x : Execute test for x seconds.
- * -p : Pause for SIGUSR1 before starting
- * -P x : Pause for x seconds between iterations.
- * -t : Turn on syscall timing.
+ * Checks functionality for sched_setparam(2) for pid != 0
*
- ****************************************************************/
-
-#include <err.h>
-#include <errno.h>
-#include <sched.h>
-#include <sys/wait.h>
-#include "test.h"
-
-#define NEW_PRIORITY 5
-
-static void setup();
-static void cleanup();
-static int verify_priority();
-
-char *TCID = "sched_setparam03";
-int TST_TOTAL = 1;
-
-static struct sched_param param = { NEW_PRIORITY };
+ * This test forks a child and changes its parent's scheduling priority.
+ */
-int main(int ac, char **av)
+#include <stdlib.h>
+
+#include "tst_test.h"
+#include "tst_sched.h"
+
+static struct sched_variants variants[] = {
+ { .sched_setparam = libc_sched_setparam,
+ .sched_getparam = libc_sched_getparam,
+ .sched_setscheduler = libc_sched_setscheduler,
+ .desc = "libc"
+ },
+ { .sched_setparam = sys_sched_setparam,
+ .sched_getparam = sys_sched_getparam,
+ .sched_setscheduler = sys_sched_setscheduler,
+ .desc = "syscall"
+ },
+};
+
+static void run(void)
{
-
- int lc;
- int status;
+ struct sched_variants *tv = &variants[tst_variant];
+ struct sched_param p5 = { .sched_priority = 5 };
+ struct sched_param p;
pid_t child_pid;
- tst_parse_opts(ac, av, NULL, NULL);
-
- setup();
-
- for (lc = 0; TEST_LOOPING(lc); lc++) {
+ child_pid = SAFE_FORK();
- tst_count = 0;
-
- switch (child_pid = FORK_OR_VFORK()) {
-
- case -1:
- /* fork() failed */
- tst_resm(TFAIL, "fork() failed");
- continue;
-
- case 0:
- /* Child */
-
- /*
- * Call sched_setparam(2) with pid = getppid() so that
- * it will set the scheduling parameters for parent
- * process
- */
- TEST(sched_setparam(getppid(), ¶m));
-
- if (TEST_RETURN == -1) {
- err(0, "sched_setparam returned %ld",
- TEST_RETURN);
- }
- exit(1);
-
- default:
- /* Parent */
- if ((waitpid(child_pid, &status, 0)) < 0) {
- tst_resm(TFAIL, "wait() failed");
- continue;
- }
-
- /*
- * Verify that parent's scheduling priority has
- * changed.
- */
- if ((WIFEXITED(status)) && (WEXITSTATUS(status)) &&
- (verify_priority())) {
- tst_resm(TPASS, "Test Passed");
- } else {
- tst_resm(TFAIL, "Test Failed");
- }
- }
+ if (!child_pid) {
+ /*
+ * Call sched_setparam(2) with pid = getppid() so that
+ * it will set the scheduling parameters for parent
+ * process
+ */
+ TST_EXP_PASS_SILENT(tv->sched_setparam(getppid(), &p5));
+ exit(0);
}
+ tst_reap_children();
- cleanup();
- tst_exit();
+ TST_EXP_PASS_SILENT(tv->sched_getparam(0, &p));
+
+ if (p.sched_priority == p5.sched_priority)
+ tst_res(TPASS, "got expected priority %d", p.sched_priority);
+ else
+ tst_res(TFAIL, "got priority %d, expected 5", p.sched_priority);
}
-/* setup() - performs all ONE TIME setup for this test */
void setup(void)
{
- struct sched_param p = { 1 };
-
- tst_require_root();
-
- tst_sig(FORK, DEF_HANDLER, cleanup);
-
- TEST_PAUSE;
-
- /* Change scheduling policy to SCHED_FIFO */
- if ((sched_setscheduler(0, SCHED_FIFO, &p)) == -1) {
- tst_brkm(TBROK, cleanup, "sched_setscheduler() failed");
- }
+ struct sched_variants *tv = &variants[tst_variant];
+ struct sched_param p = { .sched_priority = 1 };
+ tst_res(TINFO, "Testing %s variant", tv->desc);
+ TST_EXP_PASS_SILENT(tv->sched_setscheduler(0, SCHED_FIFO, &p));
}
-/*
- *cleanup() - performs all ONE TIME cleanup for this test at
- * completion or premature exit.
- */
-void cleanup(void)
-{
-}
-
-/*
- * verify_priority() - This function checks whether the priority is
- * set correctly
- */
-int verify_priority(void)
-{
- struct sched_param p;
-
- if ((sched_getparam(0, &p)) == 0) {
- if (p.sched_priority == NEW_PRIORITY) {
- return 1;
- } else {
- tst_resm(TWARN, "sched_getparam() returned priority"
- " value as %d", p.sched_priority);
- return 0;
- }
- }
-
- tst_resm(TWARN, "sched_getparam() failed");
- return 0;
-}
+static struct tst_test test = {
+ .forks_child = 1,
+ .needs_root = 1,
+ .setup = setup,
+ .test_variants = ARRAY_SIZE(variants),
+ .test_all = run,
+};
Signed-off-by: Alexey Kodanev <aleksei.kodanev@bell-sw.com> --- .../sched_setparam/sched_setparam03.c | 235 +++++------------- 1 file changed, 58 insertions(+), 177 deletions(-)