1 files changed, 65 insertions, 0 deletions
diff --git a/test/syscalls/linux/base_poll_test.cc b/test/syscalls/linux/base_poll_test.cc
new file mode 100644
index 000000000..bba0108ea
--- /dev/null
+++ b/test/syscalls/linux/base_poll_test.cc
@@ -0,0 +1,65 @@
+// Copyright 2018 Google LLC
+//
+// 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 "test/syscalls/linux/base_poll_test.h"
+
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <syscall.h>
+#include <unistd.h>
+
+#include "gtest/gtest.h"
+#include "absl/memory/memory.h"
+#include "absl/time/clock.h"
+#include "absl/time/time.h"
+#include "test/util/test_util.h"
+
+namespace gvisor {
+namespace testing {
+
+static volatile int timer_fired = 0;
+static void SigAlarmHandler(int, siginfo_t*, void*) { timer_fired = 1; }
+
+BasePollTest::BasePollTest() {
+  // Register our SIGALRM handler, but save the original so we can restore in
+  // the destructor.
+  struct sigaction sa = {};
+  sa.sa_sigaction = SigAlarmHandler;
+  sigfillset(&sa.sa_mask);
+  TEST_PCHECK(sigaction(SIGALRM, &sa, &original_alarm_sa_) == 0);
+}
+
+BasePollTest::~BasePollTest() {
+  ClearTimer();
+  TEST_PCHECK(sigaction(SIGALRM, &original_alarm_sa_, nullptr) == 0);
+}
+
+void BasePollTest::SetTimer(absl::Duration duration) {
+  pid_t tgid = getpid();
+  pid_t tid = gettid();
+  ClearTimer();
+
+  // Create a new timer thread.
+  timer_ = absl::make_unique<TimerThread>(absl::Now() + duration, tgid, tid);
+}
+
+bool BasePollTest::TimerFired() const { return timer_fired; }
+
+void BasePollTest::ClearTimer() {
+  timer_.reset();
+  timer_fired = 0;
+}
+
+}  // namespace testing
+}  // namespace gvisor