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68 lines
2.7 KiB
C++
68 lines
2.7 KiB
C++
/*
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* Copyright (c) 2022, kleines Filmröllchen <filmroellchen@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibTest/TestCase.h>
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#include <pthread.h>
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#include <sched.h>
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#include <unistd.h>
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#define TEST_CASE_IN_PTHREAD(x) \
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static void* __TESTCASE_FUNC(x##__inner)(void*); \
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TEST_CASE(x) \
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{ \
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pthread_t thread; \
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pthread_create(&thread, nullptr, __TESTCASE_FUNC(x##__inner), nullptr); \
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pthread_join(thread, nullptr); \
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} \
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static void* __TESTCASE_FUNC(x##__inner)(void*)
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TEST_CASE_IN_PTHREAD(basic_priority)
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{
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auto min_priority = sched_get_priority_min(0);
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auto max_priority = sched_get_priority_max(0);
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sched_param const min_priority_parameter { .sched_priority = min_priority };
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sched_param const max_priority_parameter { .sched_priority = max_priority };
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auto rc = pthread_setschedparam(0, 0, &min_priority_parameter);
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EXPECT_EQ(rc, 0);
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sched_param output_parameter;
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rc = pthread_getschedparam(0, 0, &output_parameter);
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EXPECT_EQ(rc, 0);
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EXPECT_EQ(output_parameter.sched_priority, min_priority);
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rc = pthread_setschedparam(0, 0, &max_priority_parameter);
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EXPECT_EQ(rc, 0);
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rc = pthread_getschedparam(0, 0, &output_parameter);
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EXPECT_EQ(rc, 0);
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EXPECT_EQ(output_parameter.sched_priority, max_priority);
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rc = pthread_setschedparam(0, 0, &max_priority_parameter);
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EXPECT_EQ(rc, 0);
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return 0;
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}
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TEST_CASE_IN_PTHREAD(invalid_arguments)
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{
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auto min_priority = sched_get_priority_min(0);
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auto max_priority = sched_get_priority_max(0);
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sched_param const under_priority_parameter { .sched_priority = min_priority - 1 };
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sched_param const over_priority_parameter { .sched_priority = max_priority + 1 };
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sched_param const min_priority_parameter { .sched_priority = min_priority };
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// Set too high or too low priorities.
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auto rc = pthread_setschedparam(0, 0, &over_priority_parameter);
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EXPECT_EQ(rc, EINVAL);
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rc = pthread_setschedparam(0, 0, &under_priority_parameter);
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EXPECT_EQ(rc, EINVAL);
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// Get and set a thread that doesn't exist.
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rc = pthread_setschedparam(-42069, 0, &min_priority_parameter);
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EXPECT_EQ(rc, ESRCH);
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sched_param output_parameter;
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rc = pthread_getschedparam(-42069, 0, &output_parameter);
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EXPECT_EQ(rc, ESRCH);
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return 0;
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}
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