77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
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*/
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/*\
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* [Description]
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*
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* Verify that:
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*
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* sched_getparam(2) gets correct scheduling parameters for
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* the specified process:
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*
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* - If pid is zero, sched_getparam(2) gets the scheduling parameters
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* for the calling process.
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* - If pid is not zero, sched_getparam(2) gets the scheduling
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* parameters for the specified [pid] process.
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*/
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#include <errno.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "tst_test.h"
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#include "tst_sched.h"
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static pid_t pids[2] = {0, 0};
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static void verify_sched_getparam(unsigned int n)
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{
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pid_t child_pid;
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struct sched_variant *tv = &sched_variants[tst_variant];
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struct sched_param param = {
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.sched_priority = 100,
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};
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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_getparam(pids[n], ¶m),
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"sched_getparam(%d)", pids[n]);
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if (!TST_PASS)
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exit(0);
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/*
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* For normal process, scheduling policy is SCHED_OTHER.
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* For this scheduling policy, only allowed priority value is 0.
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*/
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if (param.sched_priority)
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tst_res(TFAIL,
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"sched_getparam(%d) got wrong sched_priority %d, expected 0",
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pids[n], param.sched_priority);
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else
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tst_res(TPASS, "sched_getparam(%d) got expected sched_priority 0", pids[n]);
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exit(0);
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}
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tst_reap_children();
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}
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static void setup(void)
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{
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struct sched_variant *tv = &sched_variants[tst_variant];
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tst_res(TINFO, "Testing %s variant", tv->desc);
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pids[1] = getpid();
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}
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static struct tst_test test = {
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.forks_child = 1,
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.setup = setup,
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.test_variants = ARRAY_SIZE(sched_variants),
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.tcnt = ARRAY_SIZE(pids),
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.test = verify_sched_getparam,
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};
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