1 //
2 //
3 // Copyright 2015 gRPC authors.
4 //
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 // http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 //
17 //
18
19 #include <grpc/support/port_platform.h>
20
21 #include "src/core/lib/iomgr/port.h"
22
23 #ifdef GRPC_WINSOCK_SOCKET
24 #include <errno.h>
25 #include <fcntl.h>
26 #include <string.h>
27
28 #include "absl/log/check.h"
29 #include "absl/log/log.h"
30 #include "src/core/lib/address_utils/sockaddr_utils.h"
31 #include "src/core/lib/iomgr/endpoint_pair.h"
32 #include "src/core/lib/iomgr/sockaddr.h"
33 #include "src/core/lib/iomgr/socket_windows.h"
34 #include "src/core/lib/iomgr/tcp_windows.h"
35 #include "src/core/util/crash.h"
36
create_sockets(SOCKET sv[2])37 static void create_sockets(SOCKET sv[2]) {
38 SOCKET svr_sock = INVALID_SOCKET;
39 SOCKET lst_sock = INVALID_SOCKET;
40 SOCKET cli_sock = INVALID_SOCKET;
41 SOCKADDR_IN addr;
42 int addr_len = sizeof(addr);
43
44 lst_sock = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0,
45 grpc_get_default_wsa_socket_flags());
46 CHECK(lst_sock != INVALID_SOCKET);
47
48 memset(&addr, 0, sizeof(addr));
49 addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
50 addr.sin_family = AF_INET;
51 CHECK(bind(lst_sock, (grpc_sockaddr*)&addr, sizeof(addr)) != SOCKET_ERROR);
52 CHECK(listen(lst_sock, SOMAXCONN) != SOCKET_ERROR);
53 CHECK(getsockname(lst_sock, (grpc_sockaddr*)&addr, &addr_len) !=
54 SOCKET_ERROR);
55
56 cli_sock = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0,
57 grpc_get_default_wsa_socket_flags());
58 CHECK(cli_sock != INVALID_SOCKET);
59
60 CHECK(WSAConnect(cli_sock, (grpc_sockaddr*)&addr, addr_len, NULL, NULL, NULL,
61 NULL) == 0);
62 svr_sock = accept(lst_sock, (grpc_sockaddr*)&addr, &addr_len);
63 CHECK(svr_sock != INVALID_SOCKET);
64
65 closesocket(lst_sock);
66 grpc_error_handle error = grpc_tcp_prepare_socket(cli_sock);
67 if (!error.ok()) {
68 VLOG(2) << "Prepare cli_sock failed with error: "
69 << grpc_core::StatusToString(error);
70 }
71 error = grpc_tcp_prepare_socket(svr_sock);
72 if (!error.ok()) {
73 VLOG(2) << "Prepare svr_sock failed with error: "
74 << grpc_core::StatusToString(error);
75 }
76
77 sv[1] = cli_sock;
78 sv[0] = svr_sock;
79 }
80
grpc_iomgr_create_endpoint_pair(const char *,const grpc_channel_args *)81 grpc_endpoint_pair grpc_iomgr_create_endpoint_pair(
82 const char*, const grpc_channel_args* /* channel_args */) {
83 SOCKET sv[2];
84 grpc_endpoint_pair p;
85 create_sockets(sv);
86 grpc_core::ExecCtx exec_ctx;
87 p.client = grpc_tcp_create(grpc_winsocket_create(sv[1], "endpoint:client"),
88 "endpoint:server");
89 p.server = grpc_tcp_create(grpc_winsocket_create(sv[0], "endpoint:server"),
90 "endpoint:client");
91 return p;
92 }
93
94 #endif
95