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 <time.h>
20 #include <mutex>
21 #include <thread>
22
23 #include <grpc/grpc.h>
24 #include <grpc/support/atm.h>
25 #include <grpc/support/log.h>
26 #include <grpc/support/time.h>
27 #include <grpcpp/channel.h>
28 #include <grpcpp/client_context.h>
29 #include <grpcpp/create_channel.h>
30 #include <grpcpp/security/credentials.h>
31 #include <grpcpp/security/server_credentials.h>
32 #include <grpcpp/server.h>
33 #include <grpcpp/server_builder.h>
34 #include <grpcpp/server_context.h>
35
36 #include "src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.h"
37 #include "src/proto/grpc/testing/echo.grpc.pb.h"
38 #include "test/core/util/port.h"
39 #include "test/core/util/test_config.h"
40
41 #include <gtest/gtest.h>
42
43 using grpc::testing::EchoRequest;
44 using grpc::testing::EchoResponse;
45 using std::chrono::system_clock;
46
47 const char* kLargeString =
48 "("
49 "To be, or not to be- that is the question:"
50 "Whether 'tis nobler in the mind to suffer"
51 "The slings and arrows of outrageous fortune"
52 "Or to take arms against a sea of troubles,"
53 "And by opposing end them. To die- to sleep-"
54 "No more; and by a sleep to say we end"
55 "The heartache, and the thousand natural shock"
56 "That flesh is heir to. 'Tis a consummation"
57 "Devoutly to be wish'd. To die- to sleep."
58 "To sleep- perchance to dream: ay, there's the rub!"
59 "For in that sleep of death what dreams may come"
60 "When we have shuffled off this mortal coil,"
61 "Must give us pause. There's the respect"
62 "That makes calamity of so long life."
63 "For who would bear the whips and scorns of time,"
64 "Th' oppressor's wrong, the proud man's contumely,"
65 "The pangs of despis'd love, the law's delay,"
66 "The insolence of office, and the spurns"
67 "That patient merit of th' unworthy takes,"
68 "When he himself might his quietus make"
69 "With a bare bodkin? Who would these fardels bear,"
70 "To grunt and sweat under a weary life,"
71 "But that the dread of something after death-"
72 "The undiscover'd country, from whose bourn"
73 "No traveller returns- puzzles the will,"
74 "And makes us rather bear those ills we have"
75 "Than fly to others that we know not of?"
76 "Thus conscience does make cowards of us all,"
77 "And thus the native hue of resolution"
78 "Is sicklied o'er with the pale cast of thought,"
79 "And enterprises of great pith and moment"
80 "With this regard their currents turn awry"
81 "And lose the name of action.- Soft you now!"
82 "The fair Ophelia!- Nymph, in thy orisons"
83 "Be all my sins rememb'red.";
84
85 namespace grpc {
86 namespace testing {
87
88 class TestServiceImpl : public ::grpc::testing::EchoTestService::Service {
89 public:
BidiStream_Sender(ServerReaderWriter<EchoResponse,EchoRequest> * stream,gpr_atm * should_exit)90 static void BidiStream_Sender(
91 ServerReaderWriter<EchoResponse, EchoRequest>* stream,
92 gpr_atm* should_exit) {
93 EchoResponse response;
94 response.set_message(kLargeString);
95 while (gpr_atm_acq_load(should_exit) == static_cast<gpr_atm>(0)) {
96 struct timespec tv = {0, 1000000}; // 1 ms
97 struct timespec rem;
98 // TODO (vpai): Mark this blocking
99 while (nanosleep(&tv, &rem) != 0) {
100 tv = rem;
101 };
102
103 stream->Write(response);
104 }
105 }
106
107 // Only implement the one method we will be calling for brevity.
BidiStream(ServerContext * context,ServerReaderWriter<EchoResponse,EchoRequest> * stream)108 Status BidiStream(
109 ServerContext* context,
110 ServerReaderWriter<EchoResponse, EchoRequest>* stream) override {
111 EchoRequest request;
112 gpr_atm should_exit;
113 gpr_atm_rel_store(&should_exit, static_cast<gpr_atm>(0));
114
115 std::thread sender(
116 std::bind(&TestServiceImpl::BidiStream_Sender, stream, &should_exit));
117
118 while (stream->Read(&request)) {
119 struct timespec tv = {0, 3000000}; // 3 ms
120 struct timespec rem;
121 // TODO (vpai): Mark this blocking
122 while (nanosleep(&tv, &rem) != 0) {
123 tv = rem;
124 };
125 }
126 gpr_atm_rel_store(&should_exit, static_cast<gpr_atm>(1));
127 sender.join();
128 return Status::OK;
129 }
130 };
131
132 class End2endTest : public ::testing::Test {
133 protected:
SetUp()134 void SetUp() override {
135 int port = grpc_pick_unused_port_or_die();
136 server_address_ << "localhost:" << port;
137 // Setup server
138 ServerBuilder builder;
139 builder.AddListeningPort(server_address_.str(),
140 InsecureServerCredentials());
141 builder.RegisterService(&service_);
142 server_ = builder.BuildAndStart();
143 }
144
TearDown()145 void TearDown() override { server_->Shutdown(); }
146
ResetStub()147 void ResetStub() {
148 std::shared_ptr<Channel> channel =
149 CreateChannel(server_address_.str(), InsecureChannelCredentials());
150 stub_ = grpc::testing::EchoTestService::NewStub(channel);
151 }
152
153 std::unique_ptr<grpc::testing::EchoTestService::Stub> stub_;
154 std::unique_ptr<Server> server_;
155 std::ostringstream server_address_;
156 TestServiceImpl service_;
157 };
158
Drainer(ClientReaderWriter<EchoRequest,EchoResponse> * reader)159 static void Drainer(ClientReaderWriter<EchoRequest, EchoResponse>* reader) {
160 EchoResponse response;
161 while (reader->Read(&response)) {
162 // Just drain out the responses as fast as possible.
163 }
164 }
165
TEST_F(End2endTest,StreamingThroughput)166 TEST_F(End2endTest, StreamingThroughput) {
167 ResetStub();
168 grpc::ClientContext context;
169 auto stream = stub_->BidiStream(&context);
170
171 auto reader = stream.get();
172 std::thread receiver(std::bind(Drainer, reader));
173
174 for (int i = 0; i < 10000; i++) {
175 EchoRequest request;
176 request.set_message(kLargeString);
177 ASSERT_TRUE(stream->Write(request));
178 if (i % 1000 == 0) {
179 gpr_log(GPR_INFO, "Send count = %d", i);
180 }
181 }
182 stream->WritesDone();
183 receiver.join();
184 }
185
186 } // namespace testing
187 } // namespace grpc
188
main(int argc,char ** argv)189 int main(int argc, char** argv) {
190 grpc_test_init(argc, argv);
191 ::testing::InitGoogleTest(&argc, argv);
192 return RUN_ALL_TESTS();
193 }
194