| 1 | //===-- Unittests for sched_getaffinity and sched_setaffinity -------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/__support/OSUtil/syscall.h" |
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| 10 | #include "src/errno/libc_errno.h" |
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| 11 | #include "src/sched/sched_getaffinity.h" |
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| 12 | #include "src/sched/sched_setaffinity.h" |
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| 13 | #include "test/UnitTest/ErrnoSetterMatcher.h" |
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| 14 | |
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| 15 | #include <sched.h> |
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| 16 | #include <sys/syscall.h> |
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| 17 | |
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| 18 | TEST(LlvmLibcSchedAffinityTest, SmokeTest) { |
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| 19 | cpu_set_t mask; |
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| 20 | LIBC_NAMESPACE::libc_errno = 0; |
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| 21 | using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds; |
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| 22 | pid_t tid = LIBC_NAMESPACE::syscall_impl<pid_t>(SYS_gettid); |
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| 23 | ASSERT_GT(tid, pid_t(0)); |
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| 24 | // We just get and set the same mask. |
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| 25 | ASSERT_THAT(LIBC_NAMESPACE::sched_getaffinity(tid, sizeof(cpu_set_t), &mask), |
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| 26 | Succeeds(0)); |
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| 27 | ASSERT_THAT(LIBC_NAMESPACE::sched_setaffinity(tid, sizeof(cpu_set_t), &mask), |
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| 28 | Succeeds(0)); |
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| 29 | } |
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| 30 | |
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| 31 | TEST(LlvmLibcSchedAffinityTest, BadMask) { |
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| 32 | using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails; |
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| 33 | pid_t tid = LIBC_NAMESPACE::syscall_impl<pid_t>(SYS_gettid); |
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| 34 | |
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| 35 | LIBC_NAMESPACE::libc_errno = 0; |
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| 36 | ASSERT_THAT( |
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| 37 | LIBC_NAMESPACE::sched_getaffinity(tid, sizeof(cpu_set_t), nullptr), |
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| 38 | Fails(EFAULT)); |
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| 39 | |
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| 40 | LIBC_NAMESPACE::libc_errno = 0; |
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| 41 | ASSERT_THAT( |
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| 42 | LIBC_NAMESPACE::sched_setaffinity(tid, sizeof(cpu_set_t), nullptr), |
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| 43 | Fails(EFAULT)); |
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| 44 | |
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| 45 | LIBC_NAMESPACE::libc_errno = 0; |
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| 46 | } |
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| 47 | |
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