// 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/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