aboutsummaryrefslogtreecommitdiffhomepage
path: root/test/cpp/end2end/thread_stress_test.cc
blob: 8760b8d28e34809bd6849d003d019efe6dd3ed9f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
/*
 *
 * Copyright 2015-2016, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include <mutex>
#include <thread>

#include <grpc++/channel.h>
#include <grpc++/client_context.h>
#include <grpc++/create_channel.h>
#include <grpc++/server.h>
#include <grpc++/server_builder.h>
#include <grpc++/server_context.h>
#include <grpc/grpc.h>
#include <grpc/support/thd.h>
#include <grpc/support/time.h>
#include <gtest/gtest.h>

#include "src/core/lib/surface/api_trace.h"
#include "src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.h"
#include "src/proto/grpc/testing/echo.grpc.pb.h"
#include "test/core/util/port.h"
#include "test/core/util/test_config.h"

using grpc::testing::EchoRequest;
using grpc::testing::EchoResponse;
using std::chrono::system_clock;

const int kNumThreads = 100;  // Number of threads
const int kNumAsyncSendThreads = 2;
const int kNumAsyncReceiveThreads = 50;
const int kNumRpcs = 1000;  // Number of RPCs per thread

namespace grpc {
namespace testing {

namespace {

// When echo_deadline is requested, deadline seen in the ServerContext is set in
// the response in seconds.
void MaybeEchoDeadline(ServerContext* context, const EchoRequest* request,
                       EchoResponse* response) {
  if (request->has_param() && request->param().echo_deadline()) {
    gpr_timespec deadline = gpr_inf_future(GPR_CLOCK_REALTIME);
    if (context->deadline() != system_clock::time_point::max()) {
      Timepoint2Timespec(context->deadline(), &deadline);
    }
    response->mutable_param()->set_request_deadline(deadline.tv_sec);
  }
}

}  // namespace

class TestServiceImpl : public ::grpc::testing::EchoTestService::Service {
 public:
  TestServiceImpl() : signal_client_(false) {}

  Status Echo(ServerContext* context, const EchoRequest* request,
              EchoResponse* response) GRPC_OVERRIDE {
    response->set_message(request->message());
    MaybeEchoDeadline(context, request, response);
    if (request->has_param() && request->param().client_cancel_after_us()) {
      {
        unique_lock<mutex> lock(mu_);
        signal_client_ = true;
      }
      while (!context->IsCancelled()) {
        gpr_sleep_until(gpr_time_add(
            gpr_now(GPR_CLOCK_REALTIME),
            gpr_time_from_micros(request->param().client_cancel_after_us(),
                                 GPR_TIMESPAN)));
      }
      return Status::CANCELLED;
    } else if (request->has_param() &&
               request->param().server_cancel_after_us()) {
      gpr_sleep_until(gpr_time_add(
          gpr_now(GPR_CLOCK_REALTIME),
          gpr_time_from_micros(request->param().server_cancel_after_us(),
                               GPR_TIMESPAN)));
      return Status::CANCELLED;
    } else {
      EXPECT_FALSE(context->IsCancelled());
    }
    return Status::OK;
  }

  // Unimplemented is left unimplemented to test the returned error.

  Status RequestStream(ServerContext* context,
                       ServerReader<EchoRequest>* reader,
                       EchoResponse* response) GRPC_OVERRIDE {
    EchoRequest request;
    response->set_message("");
    while (reader->Read(&request)) {
      response->mutable_message()->append(request.message());
    }
    return Status::OK;
  }

  // Return 3 messages.
  // TODO(yangg) make it generic by adding a parameter into EchoRequest
  Status ResponseStream(ServerContext* context, const EchoRequest* request,
                        ServerWriter<EchoResponse>* writer) GRPC_OVERRIDE {
    EchoResponse response;
    response.set_message(request->message() + "0");
    writer->Write(response);
    response.set_message(request->message() + "1");
    writer->Write(response);
    response.set_message(request->message() + "2");
    writer->Write(response);

    return Status::OK;
  }

  Status BidiStream(ServerContext* context,
                    ServerReaderWriter<EchoResponse, EchoRequest>* stream)
      GRPC_OVERRIDE {
    EchoRequest request;
    EchoResponse response;
    while (stream->Read(&request)) {
      gpr_log(GPR_INFO, "recv msg %s", request.message().c_str());
      response.set_message(request.message());
      stream->Write(response);
    }
    return Status::OK;
  }

  bool signal_client() {
    unique_lock<mutex> lock(mu_);
    return signal_client_;
  }

 private:
  bool signal_client_;
  mutex mu_;
};

class TestServiceImplDupPkg
    : public ::grpc::testing::duplicate::EchoTestService::Service {
 public:
  Status Echo(ServerContext* context, const EchoRequest* request,
              EchoResponse* response) GRPC_OVERRIDE {
    response->set_message("no package");
    return Status::OK;
  }
};

class CommonStressTest {
 public:
  CommonStressTest() : kMaxMessageSize_(8192) {}
  void SetUp() {
    int port = grpc_pick_unused_port_or_die();
    server_address_ << "localhost:" << port;
    // Setup server
    ServerBuilder builder;
    builder.AddListeningPort(server_address_.str(),
                             InsecureServerCredentials());
    builder.RegisterService(&service_);
    builder.SetMaxMessageSize(
        kMaxMessageSize_);  // For testing max message size.
    builder.RegisterService(&dup_pkg_service_);
    server_ = builder.BuildAndStart();
  }
  void TearDown() { server_->Shutdown(); }
  void ResetStub() {
    std::shared_ptr<Channel> channel =
        CreateChannel(server_address_.str(), InsecureChannelCredentials());
    stub_ = grpc::testing::EchoTestService::NewStub(channel);
  }
  grpc::testing::EchoTestService::Stub* GetStub() { return stub_.get(); }

 private:
  std::unique_ptr<grpc::testing::EchoTestService::Stub> stub_;
  std::unique_ptr<Server> server_;
  std::ostringstream server_address_;
  const int kMaxMessageSize_;
  TestServiceImpl service_;
  TestServiceImplDupPkg dup_pkg_service_;
};

class End2endTest : public ::testing::Test {
 protected:
  End2endTest() {}
  void SetUp() GRPC_OVERRIDE { common_.SetUp(); }
  void TearDown() GRPC_OVERRIDE { common_.TearDown(); }
  void ResetStub() { common_.ResetStub(); }

  CommonStressTest common_;
};

static void SendRpc(grpc::testing::EchoTestService::Stub* stub, int num_rpcs) {
  EchoRequest request;
  EchoResponse response;
  request.set_message("Hello");

  for (int i = 0; i < num_rpcs; ++i) {
    ClientContext context;
    Status s = stub->Echo(&context, request, &response);
    EXPECT_EQ(response.message(), request.message());
    EXPECT_TRUE(s.ok());
  }
}

TEST_F(End2endTest, ThreadStress) {
  common_.ResetStub();
  std::vector<std::thread*> threads;
  for (int i = 0; i < kNumThreads; ++i) {
    threads.push_back(new std::thread(SendRpc, common_.GetStub(), kNumRpcs));
  }
  for (int i = 0; i < kNumThreads; ++i) {
    threads[i]->join();
    delete threads[i];
  }
}

class AsyncClientEnd2endTest : public ::testing::Test {
 protected:
  AsyncClientEnd2endTest() : rpcs_outstanding_(0) {}

  void SetUp() GRPC_OVERRIDE { common_.SetUp(); }
  void TearDown() GRPC_OVERRIDE {
    void* ignored_tag;
    bool ignored_ok;
    while (cq_.Next(&ignored_tag, &ignored_ok))
      ;
    common_.TearDown();
  }

  void Wait() {
    unique_lock<mutex> l(mu_);
    while (rpcs_outstanding_ != 0) {
      cv_.wait(l);
    }

    cq_.Shutdown();
  }

  struct AsyncClientCall {
    EchoResponse response;
    ClientContext context;
    Status status;
    std::unique_ptr<ClientAsyncResponseReader<EchoResponse>> response_reader;
  };

  void AsyncSendRpc(int num_rpcs) {
    for (int i = 0; i < num_rpcs; ++i) {
      AsyncClientCall* call = new AsyncClientCall;
      EchoRequest request;
      request.set_message("Hello: " + std::to_string(i));
      call->response_reader =
          common_.GetStub()->AsyncEcho(&call->context, request, &cq_);
      call->response_reader->Finish(&call->response, &call->status,
                                    (void*)call);

      unique_lock<mutex> l(mu_);
      rpcs_outstanding_++;
    }
  }

  void AsyncCompleteRpc() {
    while (true) {
      void* got_tag;
      bool ok = false;
      if (!cq_.Next(&got_tag, &ok)) break;
      AsyncClientCall* call = static_cast<AsyncClientCall*>(got_tag);
      if (!ok) {
        gpr_log(GPR_DEBUG, "Error: %d", call->status.error_code());
      }
      delete call;

      bool notify;
      {
        unique_lock<mutex> l(mu_);
        rpcs_outstanding_--;
        notify = (rpcs_outstanding_ == 0);
      }
      if (notify) {
        cv_.notify_all();
      }
    }
  }

  CommonStressTest common_;
  CompletionQueue cq_;
  mutex mu_;
  condition_variable cv_;
  int rpcs_outstanding_;
};

TEST_F(AsyncClientEnd2endTest, ThreadStress) {
  common_.ResetStub();
  std::vector<std::thread *> send_threads, completion_threads;
  for (int i = 0; i < kNumAsyncReceiveThreads; ++i) {
    completion_threads.push_back(new std::thread(
        &AsyncClientEnd2endTest_ThreadStress_Test::AsyncCompleteRpc, this));
  }
  for (int i = 0; i < kNumAsyncSendThreads; ++i) {
    send_threads.push_back(
        new std::thread(&AsyncClientEnd2endTest_ThreadStress_Test::AsyncSendRpc,
                        this, kNumRpcs));
  }
  for (int i = 0; i < kNumAsyncSendThreads; ++i) {
    send_threads[i]->join();
    delete send_threads[i];
  }

  Wait();
  for (int i = 0; i < kNumAsyncReceiveThreads; ++i) {
    completion_threads[i]->join();
    delete completion_threads[i];
  }
}

}  // namespace testing
}  // namespace grpc

int main(int argc, char** argv) {
  grpc_test_init(argc, argv);
  ::testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}