src/core/iomgr/endpoint_pair_windows.c

/*
 *
 * Copyright 2015, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include <grpc/support/port_platform.h>

#ifdef GPR_WINSOCK_SOCKET
#include "src/core/iomgr/sockaddr_utils.h"
#include "src/core/iomgr/endpoint_pair.h"

#include <errno.h>
#include <fcntl.h>
#include <string.h>

#include "src/core/iomgr/tcp_windows.h"
#include "src/core/iomgr/socket_windows.h"
#include <grpc/support/log.h>

static void
create_sockets (SOCKET sv[2])
{
  SOCKET svr_sock = INVALID_SOCKET;
  SOCKET lst_sock = INVALID_SOCKET;
  SOCKET cli_sock = INVALID_SOCKET;
  SOCKADDR_IN addr;
  int addr_len = sizeof (addr);

  lst_sock = WSASocket (AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0, WSA_FLAG_OVERLAPPED);
  GPR_ASSERT (lst_sock != INVALID_SOCKET);

  memset (&addr, 0, sizeof (addr));
  addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
  addr.sin_family = AF_INET;
  GPR_ASSERT (bind (lst_sock, (struct sockaddr *) &addr, sizeof (addr)) != SOCKET_ERROR);
  GPR_ASSERT (listen (lst_sock, SOMAXCONN) != SOCKET_ERROR);
  GPR_ASSERT (getsockname (lst_sock, (struct sockaddr *) &addr, &addr_len) != SOCKET_ERROR);

  cli_sock = WSASocket (AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0, WSA_FLAG_OVERLAPPED);
  GPR_ASSERT (cli_sock != INVALID_SOCKET);

  GPR_ASSERT (WSAConnect (cli_sock, (struct sockaddr *) &addr, addr_len, NULL, NULL, NULL, NULL) == 0);
  svr_sock = accept (lst_sock, (struct sockaddr *) &addr, &addr_len);
  GPR_ASSERT (svr_sock != INVALID_SOCKET);

  closesocket (lst_sock);
  grpc_tcp_prepare_socket (cli_sock);
  grpc_tcp_prepare_socket (svr_sock);

  sv[1] = cli_sock;
  sv[0] = svr_sock;
}

grpc_endpoint_pair
grpc_iomgr_create_endpoint_pair (const char *name, size_t read_slice_size)
{
  SOCKET sv[2];
  grpc_endpoint_pair p;
  create_sockets (sv);
  p.client = grpc_tcp_create (grpc_winsocket_create (sv[1], "endpoint:client"), "endpoint:server");
  p.server = grpc_tcp_create (grpc_winsocket_create (sv[0], "endpoint:server"), "endpoint:client");
  return p;
}

#endif