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Diffstat (limited to 'test/syscalls/linux/getcpu.cc')
-rw-r--r-- | test/syscalls/linux/getcpu.cc | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/test/syscalls/linux/getcpu.cc b/test/syscalls/linux/getcpu.cc new file mode 100644 index 000000000..f4d94bd6a --- /dev/null +++ b/test/syscalls/linux/getcpu.cc @@ -0,0 +1,40 @@ +// Copyright 2018 The gVisor Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include <sched.h> + +#include "gtest/gtest.h" +#include "absl/time/clock.h" +#include "absl/time/time.h" +#include "test/util/test_util.h" + +namespace gvisor { +namespace testing { + +namespace { + +TEST(GetcpuTest, IsValidCpuStress) { + const int num_cpus = NumCPUs(); + absl::Time deadline = absl::Now() + absl::Seconds(10); + while (absl::Now() < deadline) { + int cpu; + ASSERT_THAT(cpu = sched_getcpu(), SyscallSucceeds()); + ASSERT_LT(cpu, num_cpus); + } +} + +} // namespace + +} // namespace testing +} // namespace gvisor |