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
|
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
#ifndef _THRIFT_TEST_SERVERTHREAD_H_
#define _THRIFT_TEST_SERVERTHREAD_H_ 1
#include <thrift/TProcessor.h>
#include <thrift/protocol/TProtocol.h>
#include <thrift/server/TServer.h>
#include <thrift/transport/TTransport.h>
#include "EventLog.h"
namespace apache {
namespace thrift {
namespace test {
/**
* A helper class to tell ServerThread how to create the server
*/
class ServerState {
public:
virtual ~ServerState() = default;
/**
* Create a server to listen on the specified port.
*
* If the server returned fails to bind to the specified port when serve() is
* called on it, createServer() may be called again on a different port.
*/
virtual std::shared_ptr<server::TServer> createServer(uint16_t port) = 0;
/**
* Get the TServerEventHandler to set on the server.
*
* This is only called after the server successfully binds and is about to
* start serving traffic. It is invoked from the server thread, rather than
* the main thread.
*/
virtual std::shared_ptr<server::TServerEventHandler> getServerEventHandler() {
return std::shared_ptr<server::TServerEventHandler>();
}
/**
* This method is called in the server thread after server binding succeeds.
*
* Subclasses may override this method if they wish to record the final
* port that was used for the server.
*/
virtual void bindSuccessful(uint16_t /*port*/) {}
};
/**
* ServerThread starts a thrift server running in a separate thread.
*/
class ServerThread {
public:
ServerThread(const std::shared_ptr<ServerState>& state, bool autoStart)
: port_(0),
running_(false),
serving_(false),
error_(false),
serverState_(state) {
if (autoStart) {
start();
}
}
void start();
void stop();
uint16_t getPort() const { return port_; }
~ServerThread() {
if (running_) {
try {
stop();
} catch (...) {
GlobalOutput.printf("error shutting down server");
}
}
}
protected:
// Annoying. thrift forces us to use shared_ptr, so we have to use
// a helper class that we can allocate on the heap and give to thrift.
// It would be simpler if we could just make Runnable and TServerEventHandler
// private base classes of ServerThread.
class Helper : public concurrency::Runnable, public server::TServerEventHandler {
public:
Helper(ServerThread* serverThread) : serverThread_(serverThread) {}
void run() override { serverThread_->run(); }
void preServe() override { serverThread_->preServe(); }
private:
ServerThread* serverThread_;
};
void run();
void preServe();
std::shared_ptr<Helper> helper_;
uint16_t port_;
bool running_;
bool serving_;
bool error_;
concurrency::Monitor serverMonitor_;
std::shared_ptr<ServerState> serverState_;
std::shared_ptr<server::TServer> server_;
std::shared_ptr<concurrency::Thread> thread_;
};
}
}
} // apache::thrift::test
#endif // _THRIFT_TEST_SERVERTHREAD_H_
|
