45 lines · cpp
1//===-- Unittests for sched_getaffinity and sched_setaffinity -------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/__support/OSUtil/syscall.h"10#include "src/sched/sched_getaffinity.h"11#include "src/sched/sched_setaffinity.h"12#include "test/UnitTest/ErrnoCheckingTest.h"13#include "test/UnitTest/ErrnoSetterMatcher.h"14 15#include "hdr/types/cpu_set_t.h"16#include "hdr/types/pid_t.h"17#include <sys/syscall.h>18 19using LlvmLibcSchedAffinityTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest;20 21TEST_F(LlvmLibcSchedAffinityTest, SmokeTest) {22 cpu_set_t mask;23 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;24 pid_t tid = LIBC_NAMESPACE::syscall_impl<pid_t>(SYS_gettid);25 ASSERT_GT(tid, pid_t(0));26 // We just get and set the same mask.27 ASSERT_THAT(LIBC_NAMESPACE::sched_getaffinity(tid, sizeof(cpu_set_t), &mask),28 Succeeds(0));29 ASSERT_THAT(LIBC_NAMESPACE::sched_setaffinity(tid, sizeof(cpu_set_t), &mask),30 Succeeds(0));31}32 33TEST_F(LlvmLibcSchedAffinityTest, BadMask) {34 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;35 pid_t tid = LIBC_NAMESPACE::syscall_impl<pid_t>(SYS_gettid);36 37 ASSERT_THAT(38 LIBC_NAMESPACE::sched_getaffinity(tid, sizeof(cpu_set_t), nullptr),39 Fails(EFAULT));40 41 ASSERT_THAT(42 LIBC_NAMESPACE::sched_setaffinity(tid, sizeof(cpu_set_t), nullptr),43 Fails(EFAULT));44}45