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Diffstat (limited to 'test/syscalls/linux/pause.cc')
-rw-r--r-- | test/syscalls/linux/pause.cc | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/test/syscalls/linux/pause.cc b/test/syscalls/linux/pause.cc deleted file mode 100644 index 8c05efd6f..000000000 --- a/test/syscalls/linux/pause.cc +++ /dev/null @@ -1,88 +0,0 @@ -// 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 <errno.h> -#include <signal.h> -#include <sys/syscall.h> -#include <sys/types.h> -#include <unistd.h> - -#include <atomic> - -#include "gtest/gtest.h" -#include "absl/synchronization/mutex.h" -#include "absl/time/clock.h" -#include "absl/time/time.h" -#include "test/util/signal_util.h" -#include "test/util/test_util.h" -#include "test/util/thread_util.h" - -namespace gvisor { -namespace testing { - -namespace { - -void NoopSignalHandler(int sig, siginfo_t* info, void* context) {} - -} // namespace - -TEST(PauseTest, OnlyReturnsWhenSignalHandled) { - struct sigaction sa; - sigfillset(&sa.sa_mask); - - // Ensure that SIGUSR1 is ignored. - sa.sa_handler = SIG_IGN; - ASSERT_THAT(sigaction(SIGUSR1, &sa, nullptr), SyscallSucceeds()); - - // Register a handler for SIGUSR2. - sa.sa_sigaction = NoopSignalHandler; - sa.sa_flags = SA_SIGINFO; - ASSERT_THAT(sigaction(SIGUSR2, &sa, nullptr), SyscallSucceeds()); - - // The child sets their own tid. - absl::Mutex mu; - pid_t child_tid = 0; - bool child_tid_available = false; - std::atomic<int> sent_signal{0}; - std::atomic<int> waking_signal{0}; - ScopedThread t([&] { - mu.Lock(); - child_tid = gettid(); - child_tid_available = true; - mu.Unlock(); - EXPECT_THAT(pause(), SyscallFailsWithErrno(EINTR)); - waking_signal.store(sent_signal.load()); - }); - mu.Lock(); - mu.Await(absl::Condition(&child_tid_available)); - mu.Unlock(); - - // Wait a bit to let the child enter pause(). - absl::SleepFor(absl::Seconds(3)); - - // The child should not be woken by SIGUSR1. - sent_signal.store(SIGUSR1); - ASSERT_THAT(tgkill(getpid(), child_tid, SIGUSR1), SyscallSucceeds()); - absl::SleepFor(absl::Seconds(3)); - - // The child should be woken by SIGUSR2. - sent_signal.store(SIGUSR2); - ASSERT_THAT(tgkill(getpid(), child_tid, SIGUSR2), SyscallSucceeds()); - absl::SleepFor(absl::Seconds(3)); - - EXPECT_EQ(SIGUSR2, waking_signal.load()); -} - -} // namespace testing -} // namespace gvisor |