Function test_sync_operations

test/buffered_write_stream.cpp:138–209

}

void test_sync_operations()
{
  using namespace std; // For memcmp.

  boost::asio::io_context io_context;

  boost::asio::ip::tcp::acceptor acceptor(io_context,
      boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), 0));
  boost::asio::ip::tcp::endpoint server_endpoint = acceptor.local_endpoint();
  server_endpoint.address(boost::asio::ip::address_v4::loopback());

  stream_type client_socket(io_context);
  client_socket.lowest_layer().connect(server_endpoint);

  stream_type server_socket(io_context);
  acceptor.accept(server_socket.lowest_layer());

  const char write_data[]
    = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
  const boost::asio::const_buffer write_buf = boost::asio::buffer(write_data);

  std::size_t bytes_written = 0;
  while (bytes_written < sizeof(write_data))
  {
    bytes_written += client_socket.write_some(
        boost::asio::buffer(write_buf + bytes_written));
    client_socket.flush();
  }

  char read_data[sizeof(write_data)];
  const boost::asio::mutable_buffer read_buf = boost::asio::buffer(read_data);

  std::size_t bytes_read = 0;
  while (bytes_read < sizeof(read_data))
  {
    bytes_read += server_socket.read_some(
        boost::asio::buffer(read_buf + bytes_read));
  }

  BOOST_ASIO_CHECK(bytes_written == sizeof(write_data));
  BOOST_ASIO_CHECK(bytes_read == sizeof(read_data));
  BOOST_ASIO_CHECK(memcmp(write_data, read_data, sizeof(write_data)) == 0);

  bytes_written = 0;
  while (bytes_written < sizeof(write_data))
  {
    bytes_written += server_socket.write_some(
        boost::asio::buffer(write_buf + bytes_written));
    server_socket.flush();
  }

  bytes_read = 0;
  while (bytes_read < sizeof(read_data))
  {
    bytes_read += client_socket.read_some(
        boost::asio::buffer(read_buf + bytes_read));
  }