68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2021, BELLSOFT. All rights reserved.
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* Copyright (c) International Business Machines Corp., 2001
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*/
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/*\
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* [Description]
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*
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* Testcase to check sched_getscheduler() returns correct return value.
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*
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* [Algorithm]
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*
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* Call sched_setcheduler() to set the scheduling policy of the current
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* process. Then call sched_getscheduler() to ensure that this is same
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* as what set by the previous call to sched_setscheduler().
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*
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* Use SCHED_RR, SCHED_FIFO, SCHED_OTHER as the scheduling policies for
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* sched_setscheduler().
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*
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*/
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#include <errno.h>
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#include <stdio.h>
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#include "tst_test.h"
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#include "tst_sched.h"
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struct test_cases_t {
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int priority;
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int policy;
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} tcases[] = {
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{1, SCHED_RR},
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{0, SCHED_OTHER},
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{1, SCHED_FIFO}
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};
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static void run(unsigned int n)
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{
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struct sched_variant *tv = &sched_variants[tst_variant];
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struct test_cases_t *tc = &tcases[n];
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struct sched_param p = { .sched_priority = tc->priority };
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TST_EXP_PASS_SILENT(tv->sched_setscheduler(0, tc->policy, &p));
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if (!TST_PASS)
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return;
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TEST(tv->sched_getscheduler(0));
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if (TST_RET == tc->policy)
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tst_res(TPASS, "got expected policy %d", tc->policy);
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else
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tst_res(TFAIL | TERRNO, "got policy %ld, expected %d", TST_RET, tc->policy);
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}
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static void setup(void)
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{
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tst_res(TINFO, "Testing %s variant", sched_variants[tst_variant].desc);
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}
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static struct tst_test test = {
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.needs_root = 1,
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.setup = setup,
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.test_variants = ARRAY_SIZE(sched_variants),
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.tcnt = ARRAY_SIZE(tcases),
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.test = run,
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};
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