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 "src/core/lib/iomgr/sockaddr.h"
20 #include "src/core/lib/iomgr/socket_utils.h"
21
22 #include "test/core/util/test_tcp_server.h"
23
24 #include <grpc/grpc.h>
25 #include <grpc/support/alloc.h>
26 #include <grpc/support/log.h>
27 #include <grpc/support/sync.h>
28 #include <grpc/support/time.h>
29 #include <string.h>
30
31 #include "src/core/lib/gpr/host_port.h"
32 #include "src/core/lib/iomgr/endpoint.h"
33 #include "src/core/lib/iomgr/resolve_address.h"
34 #include "src/core/lib/iomgr/tcp_server.h"
35 #include "test/core/util/port.h"
36 #include "test/core/util/test_config.h"
37
on_server_destroyed(void * data,grpc_error * error)38 static void on_server_destroyed(void* data, grpc_error* error) {
39 test_tcp_server* server = static_cast<test_tcp_server*>(data);
40 server->shutdown = 1;
41 }
42
test_tcp_server_init(test_tcp_server * server,grpc_tcp_server_cb on_connect,void * user_data)43 void test_tcp_server_init(test_tcp_server* server,
44 grpc_tcp_server_cb on_connect, void* user_data) {
45 grpc_init();
46 server->tcp_server = nullptr;
47 GRPC_CLOSURE_INIT(&server->shutdown_complete, on_server_destroyed, server,
48 grpc_schedule_on_exec_ctx);
49 server->shutdown = 0;
50 server->pollset = static_cast<grpc_pollset*>(gpr_zalloc(grpc_pollset_size()));
51 grpc_pollset_init(server->pollset, &server->mu);
52 server->on_connect = on_connect;
53 server->cb_data = user_data;
54 }
55
test_tcp_server_start(test_tcp_server * server,int port)56 void test_tcp_server_start(test_tcp_server* server, int port) {
57 grpc_resolved_address resolved_addr;
58 grpc_sockaddr_in* addr =
59 reinterpret_cast<grpc_sockaddr_in*>(resolved_addr.addr);
60 int port_added;
61 grpc_core::ExecCtx exec_ctx;
62
63 addr->sin_family = GRPC_AF_INET;
64 addr->sin_port = grpc_htons(static_cast<uint16_t>(port));
65 memset(&addr->sin_addr, 0, sizeof(addr->sin_addr));
66
67 grpc_error* error = grpc_tcp_server_create(&server->shutdown_complete,
68 nullptr, &server->tcp_server);
69 GPR_ASSERT(error == GRPC_ERROR_NONE);
70 error =
71 grpc_tcp_server_add_port(server->tcp_server, &resolved_addr, &port_added);
72 GPR_ASSERT(error == GRPC_ERROR_NONE);
73 GPR_ASSERT(port_added == port);
74
75 grpc_tcp_server_start(server->tcp_server, &server->pollset, 1,
76 server->on_connect, server->cb_data);
77 gpr_log(GPR_INFO, "test tcp server listening on 0.0.0.0:%d", port);
78 }
79
test_tcp_server_poll(test_tcp_server * server,int seconds)80 void test_tcp_server_poll(test_tcp_server* server, int seconds) {
81 grpc_pollset_worker* worker = nullptr;
82 grpc_core::ExecCtx exec_ctx;
83 grpc_millis deadline = grpc_timespec_to_millis_round_up(
84 grpc_timeout_seconds_to_deadline(seconds));
85 gpr_mu_lock(server->mu);
86 GRPC_LOG_IF_ERROR("pollset_work",
87 grpc_pollset_work(server->pollset, &worker, deadline));
88 gpr_mu_unlock(server->mu);
89 }
90
do_nothing(void * arg,grpc_error * error)91 static void do_nothing(void* arg, grpc_error* error) {}
finish_pollset(void * arg,grpc_error * error)92 static void finish_pollset(void* arg, grpc_error* error) {
93 grpc_pollset_destroy(static_cast<grpc_pollset*>(arg));
94 }
95
test_tcp_server_destroy(test_tcp_server * server)96 void test_tcp_server_destroy(test_tcp_server* server) {
97 grpc_core::ExecCtx exec_ctx;
98 gpr_timespec shutdown_deadline;
99 grpc_closure do_nothing_cb;
100 grpc_tcp_server_unref(server->tcp_server);
101 GRPC_CLOSURE_INIT(&do_nothing_cb, do_nothing, nullptr,
102 grpc_schedule_on_exec_ctx);
103 shutdown_deadline = gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC),
104 gpr_time_from_seconds(5, GPR_TIMESPAN));
105 while (!server->shutdown &&
106 gpr_time_cmp(gpr_now(GPR_CLOCK_MONOTONIC), shutdown_deadline) < 0) {
107 test_tcp_server_poll(server, 1);
108 }
109 grpc_pollset_shutdown(server->pollset,
110 GRPC_CLOSURE_CREATE(finish_pollset, server->pollset,
111 grpc_schedule_on_exec_ctx));
112 grpc_core::ExecCtx::Get()->Flush();
113 gpr_free(server->pollset);
114 grpc_shutdown();
115 }
116