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
|
/*
*
* Copyright 2015, 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.
*
*/
#ifndef GRPCXX_CLIENT_CONTEXT_H
#define GRPCXX_CLIENT_CONTEXT_H
#include <map>
#include <memory>
#include <string>
#include <grpc/compression.h>
#include <grpc/support/log.h>
#include <grpc/support/time.h>
#include <grpc++/auth_context.h>
#include <grpc++/config.h>
#include <grpc++/status.h>
#include <grpc++/time.h>
struct grpc_call;
struct grpc_completion_queue;
struct census_context;
namespace grpc {
class ChannelInterface;
class CompletionQueue;
class Credentials;
class RpcMethod;
template <class R>
class ClientReader;
template <class W>
class ClientWriter;
template <class R, class W>
class ClientReaderWriter;
template <class R>
class ClientAsyncReader;
template <class W>
class ClientAsyncWriter;
template <class R, class W>
class ClientAsyncReaderWriter;
template <class R>
class ClientAsyncResponseReader;
class ClientContext {
public:
ClientContext();
~ClientContext();
void AddMetadata(const grpc::string& meta_key,
const grpc::string& meta_value);
const std::multimap<grpc::string, grpc::string>& GetServerInitialMetadata() {
GPR_ASSERT(initial_metadata_received_);
return recv_initial_metadata_;
}
const std::multimap<grpc::string, grpc::string>& GetServerTrailingMetadata() {
// TODO(yangg) check finished
return trailing_metadata_;
}
template <typename T>
void set_deadline(const T& deadline) {
TimePoint<T> deadline_tp(deadline);
deadline_ = deadline_tp.raw_time();
}
#ifndef GRPC_CXX0X_NO_CHRONO
std::chrono::system_clock::time_point deadline() {
return Timespec2Timepoint(deadline_);
}
#endif // !GRPC_CXX0X_NO_CHRONO
gpr_timespec raw_deadline() { return deadline_; }
void set_authority(const grpc::string& authority) { authority_ = authority; }
// Set credentials for the rpc.
void set_credentials(const std::shared_ptr<Credentials>& creds) {
creds_ = creds;
}
grpc_compression_algorithm get_compression_algorithm() const {
return compression_algorithm_;
}
void set_compression_algorithm(grpc_compression_algorithm algorithm);
std::shared_ptr<const AuthContext> auth_context() const;
// Return the peer uri in a string.
// WARNING: this value is never authenticated or subject to any security
// related code. It must not be used for any authentication related
// functionality. Instead, use auth_context.
grpc::string peer() const;
// Get and set census context
void set_census_context(census_context* ccp) { census_context_ = ccp; }
census_context* get_census_context() const { return census_context_; }
void TryCancel();
private:
// Disallow copy and assign.
ClientContext(const ClientContext&);
ClientContext& operator=(const ClientContext&);
friend class CallOpClientRecvStatus;
friend class CallOpRecvInitialMetadata;
friend class Channel;
template <class R>
friend class ::grpc::ClientReader;
template <class W>
friend class ::grpc::ClientWriter;
template <class R, class W>
friend class ::grpc::ClientReaderWriter;
template <class R>
friend class ::grpc::ClientAsyncReader;
template <class W>
friend class ::grpc::ClientAsyncWriter;
template <class R, class W>
friend class ::grpc::ClientAsyncReaderWriter;
template <class R>
friend class ::grpc::ClientAsyncResponseReader;
template <class InputMessage, class OutputMessage>
friend Status BlockingUnaryCall(ChannelInterface* channel,
const RpcMethod& method,
ClientContext* context,
const InputMessage& request,
OutputMessage* result);
grpc_call* call() { return call_; }
void set_call(grpc_call* call,
const std::shared_ptr<ChannelInterface>& channel);
grpc_completion_queue* cq() { return cq_; }
void set_cq(grpc_completion_queue* cq) { cq_ = cq; }
grpc::string authority() { return authority_; }
bool initial_metadata_received_;
std::shared_ptr<ChannelInterface> channel_;
grpc_call* call_;
grpc_completion_queue* cq_;
gpr_timespec deadline_;
grpc::string authority_;
std::shared_ptr<Credentials> creds_;
mutable std::shared_ptr<const AuthContext> auth_context_;
census_context* census_context_;
std::multimap<grpc::string, grpc::string> send_initial_metadata_;
std::multimap<grpc::string, grpc::string> recv_initial_metadata_;
std::multimap<grpc::string, grpc::string> trailing_metadata_;
grpc_compression_algorithm compression_algorithm_;
};
} // namespace grpc
#endif // GRPCXX_CLIENT_CONTEXT_H
|
