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/*
*
* 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;
// 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
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