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