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/*
*
* Copyright 2014, 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 __GRPCPP_CLIENT_CONTEXT_H__
#define __GRPCPP_CLIENT_CONTEXT_H__
#include <chrono>
#include <map>
#include <string>
#include <grpc/support/log.h>
#include <grpc/support/time.h>
#include <grpc++/config.h>
using std::chrono::system_clock;
struct grpc_call;
struct grpc_completion_queue;
namespace google {
namespace protobuf {
class Message;
} // namespace protobuf
} // namespace google
namespace grpc {
class CallOpBuffer;
class ChannelInterface;
class CompletionQueue;
class RpcMethod;
class Status;
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;
class ClientContext {
public:
ClientContext();
~ClientContext();
void AddMetadata(const grpc::string &meta_key,
const grpc::string &meta_value);
std::multimap<grpc::string, grpc::string> GetServerInitialMetadata() {
GPR_ASSERT(initial_metadata_received_);
return recv_initial_metadata_;
}
std::multimap<grpc::string, grpc::string> GetServerTrailingMetadata() {
// TODO(yangg) check finished
return trailing_metadata_;
}
void set_absolute_deadline(const system_clock::time_point &deadline);
system_clock::time_point absolute_deadline();
void set_authority(const grpc::string& authority) {
authority_ = authority;
}
void TryCancel();
private:
// Disallow copy and assign.
ClientContext(const ClientContext &);
ClientContext &operator=(const ClientContext &);
friend class CallOpBuffer;
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;
grpc_call *call() { return call_; }
void set_call(grpc_call *call) {
GPR_ASSERT(call_ == nullptr);
call_ = call;
}
grpc_completion_queue *cq() { return cq_; }
void set_cq(grpc_completion_queue *cq) { cq_ = cq; }
gpr_timespec RawDeadline() { return absolute_deadline_; }
grpc::string authority() {
return authority_;
}
bool initial_metadata_received_ = false;
grpc_call *call_;
grpc_completion_queue *cq_;
gpr_timespec absolute_deadline_;
grpc::string authority_;
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_;
};
} // namespace grpc
#endif // __GRPCPP_CLIENT_CONTEXT_H__
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