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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 #ifndef TEST_QPS_SERVER_H
20 #define TEST_QPS_SERVER_H
21 
22 #include <grpc/support/cpu.h>
23 #include <grpc/support/log.h>
24 #include <grpcpp/resource_quota.h>
25 #include <grpcpp/security/server_credentials.h>
26 #include <grpcpp/server_builder.h>
27 #include <vector>
28 
29 #include "src/cpp/util/core_stats.h"
30 #include "src/proto/grpc/testing/control.pb.h"
31 #include "src/proto/grpc/testing/messages.pb.h"
32 #include "test/core/end2end/data/ssl_test_data.h"
33 #include "test/core/util/port.h"
34 #include "test/cpp/qps/usage_timer.h"
35 #include "test/cpp/util/test_credentials_provider.h"
36 
37 namespace grpc {
38 namespace testing {
39 
40 class Server {
41  public:
Server(const ServerConfig & config)42   explicit Server(const ServerConfig& config)
43       : timer_(new UsageTimer), last_reset_poll_count_(0) {
44     cores_ = gpr_cpu_num_cores();
45     if (config.port()) {  // positive for a fixed port, negative for inproc
46       port_ = config.port();
47     } else {  // zero for dynamic port
48       port_ = grpc_pick_unused_port_or_die();
49     }
50   }
~Server()51   virtual ~Server() {}
52 
Mark(bool reset)53   ServerStats Mark(bool reset) {
54     UsageTimer::Result timer_result;
55     int cur_poll_count = GetPollCount();
56     int poll_count = cur_poll_count - last_reset_poll_count_;
57     if (reset) {
58       std::unique_ptr<UsageTimer> timer(new UsageTimer);
59       timer.swap(timer_);
60       timer_result = timer->Mark();
61       last_reset_poll_count_ = cur_poll_count;
62     } else {
63       timer_result = timer_->Mark();
64     }
65 
66     grpc_stats_data core_stats;
67     grpc_stats_collect(&core_stats);
68 
69     ServerStats stats;
70     stats.set_time_elapsed(timer_result.wall);
71     stats.set_time_system(timer_result.system);
72     stats.set_time_user(timer_result.user);
73     stats.set_total_cpu_time(timer_result.total_cpu_time);
74     stats.set_idle_cpu_time(timer_result.idle_cpu_time);
75     stats.set_cq_poll_count(poll_count);
76     CoreStatsToProto(core_stats, stats.mutable_core_stats());
77     return stats;
78   }
79 
SetPayload(PayloadType type,int size,Payload * payload)80   static bool SetPayload(PayloadType type, int size, Payload* payload) {
81     // TODO(yangg): Support UNCOMPRESSABLE payload.
82     if (type != PayloadType::COMPRESSABLE) {
83       return false;
84     }
85     payload->set_type(type);
86     // Don't waste time creating a new payload of identical size.
87     if (payload->body().length() != static_cast<size_t>(size)) {
88       std::unique_ptr<char[]> body(new char[size]());
89       payload->set_body(body.get(), size);
90     }
91     return true;
92   }
93 
port()94   int port() const { return port_; }
cores()95   int cores() const { return cores_; }
CreateServerCredentials(const ServerConfig & config)96   static std::shared_ptr<ServerCredentials> CreateServerCredentials(
97       const ServerConfig& config) {
98     if (config.has_security_params()) {
99       grpc::string type;
100       if (config.security_params().cred_type().empty()) {
101         type = kTlsCredentialsType;
102       } else {
103         type = config.security_params().cred_type();
104       }
105 
106       return GetCredentialsProvider()->GetServerCredentials(type);
107     } else {
108       return InsecureServerCredentials();
109     }
110   }
111 
GetPollCount()112   virtual int GetPollCount() {
113     // For sync server.
114     return 0;
115   }
116 
117   virtual std::shared_ptr<Channel> InProcessChannel(
118       const ChannelArguments& args) = 0;
119 
120  protected:
ApplyConfigToBuilder(const ServerConfig & config,ServerBuilder * builder)121   static void ApplyConfigToBuilder(const ServerConfig& config,
122                                    ServerBuilder* builder) {
123     if (config.resource_quota_size() > 0) {
124       builder->SetResourceQuota(ResourceQuota("AsyncQpsServerTest")
125                                     .Resize(config.resource_quota_size()));
126     }
127     for (const auto& channel_arg : config.channel_args()) {
128       switch (channel_arg.value_case()) {
129         case ChannelArg::kStrValue:
130           builder->AddChannelArgument(channel_arg.name(),
131                                       channel_arg.str_value());
132           break;
133         case ChannelArg::kIntValue:
134           builder->AddChannelArgument(channel_arg.name(),
135                                       channel_arg.int_value());
136           break;
137         case ChannelArg::VALUE_NOT_SET:
138           gpr_log(GPR_ERROR, "Channel arg '%s' does not have a value",
139                   channel_arg.name().c_str());
140           break;
141       }
142     }
143   }
144 
145  private:
146   int port_;
147   int cores_;
148   std::unique_ptr<UsageTimer> timer_;
149   int last_reset_poll_count_;
150 };
151 
152 std::unique_ptr<Server> CreateSynchronousServer(const ServerConfig& config);
153 std::unique_ptr<Server> CreateAsyncServer(const ServerConfig& config);
154 std::unique_ptr<Server> CreateAsyncGenericServer(const ServerConfig& config);
155 
156 }  // namespace testing
157 }  // namespace grpc
158 
159 #endif
160