3eb1e6d8e9
Having libc_errno outside of the namespace causes versioning issues when trying to link the tests against LLVM-libc. Most of this patch is just moving libc_errno inside the namespace in tests. This isn't necessary in the function implementations since those are already inside the namespace.
33 lines
1.2 KiB
C++
33 lines
1.2 KiB
C++
//===-- Unittests for __sched_cpu_count -----------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "src/__support/OSUtil/syscall.h"
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#include "src/errno/libc_errno.h"
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#include "src/sched/sched_getaffinity.h"
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#include "src/sched/sched_getcpucount.h"
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#include "test/UnitTest/ErrnoSetterMatcher.h"
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#include <sched.h>
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#include <sys/syscall.h>
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TEST(LlvmLibcSchedCpuCountTest, SmokeTest) {
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cpu_set_t mask;
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LIBC_NAMESPACE::libc_errno = 0;
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using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
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pid_t tid = LIBC_NAMESPACE::syscall_impl<pid_t>(SYS_gettid);
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ASSERT_GT(tid, pid_t(0));
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ASSERT_THAT(LIBC_NAMESPACE::sched_getaffinity(tid, sizeof(cpu_set_t), &mask),
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Succeeds(0));
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// CPU_COUNT is a macro, but it expands to an LLVM-libc internal function that
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// needs to be in the appropriate namespace for the test.
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int num_cpus = LIBC_NAMESPACE::CPU_COUNT(&mask);
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ASSERT_GT(num_cpus, 0);
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ASSERT_LE(num_cpus, int(sizeof(cpu_set_t) * sizeof(unsigned long)));
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}
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