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// 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 "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 "absl/time/clock.h"
#include "absl/time/time.h"
#include "test/syscalls/linux/unix_domain_socket_test_util.h"
#include "test/util/socket_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
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