62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2021, BELLSOFT. All rights reserved.
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* Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
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* AUTHOR: Saji Kumar.V.R <saji.kumar@wipro.com>
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*/
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/*\
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* [Description]
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*
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* Checks functionality for sched_setparam(2) for pid != 0
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*
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* This test forks a child and changes its parent's scheduling priority.
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*/
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#include <stdlib.h>
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#include "tst_test.h"
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#include "tst_sched.h"
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static void run(void)
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{
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struct sched_variant *tv = &sched_variants[tst_variant];
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struct sched_param p5 = { .sched_priority = 5 };
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struct sched_param p;
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pid_t child_pid;
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child_pid = SAFE_FORK();
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if (!child_pid) {
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TST_EXP_PASS_SILENT(tv->sched_setparam(getppid(), &p5));
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exit(0);
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}
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tst_reap_children();
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TST_EXP_PASS_SILENT(tv->sched_getparam(0, &p));
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if (p.sched_priority == p5.sched_priority)
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tst_res(TPASS, "got expected priority %d", p.sched_priority);
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else
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tst_res(TFAIL, "got priority %d, expected 5", p.sched_priority);
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}
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void setup(void)
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{
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struct sched_variant *tv = &sched_variants[tst_variant];
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struct sched_param p = { .sched_priority = 1 };
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tst_res(TINFO, "Testing %s variant", tv->desc);
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if (tv->sched_setscheduler(0, SCHED_FIFO, &p))
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tst_brk(TBROK | TERRNO, "sched_setcheduler(0, SCHED_FIFO, 1)");
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}
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static struct tst_test test = {
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.forks_child = 1,
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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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.test_all = run,
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};
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