1 /*
2 *
3 * Copyright 2016 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_POSIX_SOCKET
24
25 #include "src/core/lib/iomgr/endpoint_pair.h"
26 #include "src/core/lib/iomgr/socket_utils_posix.h"
27 #include "src/core/lib/iomgr/unix_sockets_posix.h"
28
29 #include <errno.h>
30 #include <fcntl.h>
31 #include <string.h>
32 #include <sys/socket.h>
33 #include <sys/types.h>
34
35 #include <grpc/support/alloc.h>
36 #include <grpc/support/log.h>
37 #include <grpc/support/string_util.h>
38 #include "src/core/lib/gpr/string.h"
39 #include "src/core/lib/iomgr/tcp_posix.h"
40
create_sockets(int sv[2])41 static void create_sockets(int sv[2]) {
42 int flags;
43 grpc_create_socketpair_if_unix(sv);
44 flags = fcntl(sv[0], F_GETFL, 0);
45 GPR_ASSERT(fcntl(sv[0], F_SETFL, flags | O_NONBLOCK) == 0);
46 flags = fcntl(sv[1], F_GETFL, 0);
47 GPR_ASSERT(fcntl(sv[1], F_SETFL, flags | O_NONBLOCK) == 0);
48 GPR_ASSERT(grpc_set_socket_no_sigpipe_if_possible(sv[0]) == GRPC_ERROR_NONE);
49 GPR_ASSERT(grpc_set_socket_no_sigpipe_if_possible(sv[1]) == GRPC_ERROR_NONE);
50 }
51
grpc_iomgr_create_endpoint_pair(const char * name,grpc_channel_args * args)52 grpc_endpoint_pair grpc_iomgr_create_endpoint_pair(const char* name,
53 grpc_channel_args* args) {
54 int sv[2];
55 grpc_endpoint_pair p;
56 char* final_name;
57 create_sockets(sv);
58
59 grpc_core::ExecCtx exec_ctx;
60
61 gpr_asprintf(&final_name, "%s:client", name);
62 p.client = grpc_tcp_create(grpc_fd_create(sv[1], final_name, true), args,
63 "socketpair-server");
64 gpr_free(final_name);
65 gpr_asprintf(&final_name, "%s:server", name);
66 p.server = grpc_tcp_create(grpc_fd_create(sv[0], final_name, true), args,
67 "socketpair-client");
68 gpr_free(final_name);
69
70 return p;
71 }
72
73 #endif
74