Add blocking recv tests

PiperOrigin-RevId: 225646045
Change-Id: Ic712ebc627587ef4a9486f0b39fe8c96100f10ff

1 files changed, 60 insertions, 0 deletions

diff --git a/test/syscalls/linux/socket_blocking.cc b/test/syscalls/linux/socket_blocking.cc
new file mode 100644
index 000000000..c1bca467f
--- /dev/null
+++ b/test/syscalls/linux/socket_blocking.cc
@@ -0,0 +1,60 @@
+// 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/socket_blocking.h"
+
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <cstdio>
+
+#include "gtest/gtest.h"
+#include "gtest/gtest.h"
+#include "absl/time/clock.h"
+#include "absl/time/time.h"
+#include "test/syscalls/linux/socket_test_util.h"
+#include "test/syscalls/linux/unix_domain_socket_test_util.h"
+#include "test/util/test_util.h"
+#include "test/util/thread_util.h"
+#include "test/util/timer_util.h"
+
+namespace gvisor {
+namespace testing {
+
+TEST_P(BlockingSocketPairTest, RecvBlocks) {
+  auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
+
+  char sent_data[100];
+  RandomizeBuffer(sent_data, sizeof(sent_data));
+
+  constexpr auto kDuration = absl::Milliseconds(200);
+  auto before = Now(CLOCK_MONOTONIC);
+
+  const ScopedThread t([&]() {
+    absl::SleepFor(kDuration);
+    ASSERT_THAT(write(sockets->first_fd(), sent_data, sizeof(sent_data)),
+                SyscallSucceedsWithValue(sizeof(sent_data)));
+  });
+
+  char received_data[sizeof(sent_data)] = {};
+  ASSERT_THAT(RetryEINTR(recv)(sockets->second_fd(), received_data,
+                               sizeof(received_data), 0),
+              SyscallSucceedsWithValue(sizeof(received_data)));
+
+  auto after = Now(CLOCK_MONOTONIC);
+  EXPECT_GE(after - before, kDuration);
+}
+
+}  // namespace testing
+}  // namespace gvisor