mirror of
https://fuchsia.googlesource.com/third_party/grpc
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171 lines
5.3 KiB
C++
171 lines
5.3 KiB
C++
/*
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*
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* Copyright 2015, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef GRPCXX_CLIENT_CONTEXT_H
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#define GRPCXX_CLIENT_CONTEXT_H
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#include <map>
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#include <memory>
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#include <string>
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#include <grpc/support/log.h>
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#include <grpc/support/time.h>
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#include <grpc++/config.h>
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#include <grpc++/status.h>
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#include <grpc++/time.h>
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struct grpc_call;
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struct grpc_completion_queue;
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struct census_context;
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namespace grpc {
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class ChannelInterface;
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class CompletionQueue;
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class Credentials;
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class RpcMethod;
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template <class R>
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class ClientReader;
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template <class W>
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class ClientWriter;
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template <class R, class W>
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class ClientReaderWriter;
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template <class R>
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class ClientAsyncReader;
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template <class W>
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class ClientAsyncWriter;
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template <class R, class W>
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class ClientAsyncReaderWriter;
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template <class R>
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class ClientAsyncResponseReader;
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class ClientContext {
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public:
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ClientContext();
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~ClientContext();
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void AddMetadata(const grpc::string& meta_key,
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const grpc::string& meta_value);
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const std::multimap<grpc::string, grpc::string>& GetServerInitialMetadata() {
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GPR_ASSERT(initial_metadata_received_);
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return recv_initial_metadata_;
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}
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const std::multimap<grpc::string, grpc::string>& GetServerTrailingMetadata() {
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// TODO(yangg) check finished
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return trailing_metadata_;
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}
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template <typename T>
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void set_deadline(const T& deadline) {
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TimePoint<T> deadline_tp(deadline);
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deadline_ = deadline_tp.raw_time();
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}
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#ifndef GRPC_CXX0X_NO_CHRONO
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std::chrono::system_clock::time_point deadline() {
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return Timespec2Timepoint(deadline_);
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}
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#endif // !GRPC_CXX0X_NO_CHRONO
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gpr_timespec raw_deadline() { return deadline_; }
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void set_authority(const grpc::string& authority) { authority_ = authority; }
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// Set credentials for the rpc.
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void set_credentials(const std::shared_ptr<Credentials>& creds) {
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creds_ = creds;
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}
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// Get and set census context
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void set_census_context(census_context* ccp) { census_context_ = ccp; }
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census_context* get_census_context() const { return census_context_; }
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void TryCancel();
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private:
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// Disallow copy and assign.
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ClientContext(const ClientContext&);
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ClientContext& operator=(const ClientContext&);
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friend class CallOpClientRecvStatus;
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friend class CallOpRecvInitialMetadata;
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friend class Channel;
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template <class R>
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friend class ::grpc::ClientReader;
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template <class W>
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friend class ::grpc::ClientWriter;
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template <class R, class W>
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friend class ::grpc::ClientReaderWriter;
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template <class R>
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friend class ::grpc::ClientAsyncReader;
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template <class W>
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friend class ::grpc::ClientAsyncWriter;
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template <class R, class W>
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friend class ::grpc::ClientAsyncReaderWriter;
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template <class R>
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friend class ::grpc::ClientAsyncResponseReader;
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template <class InputMessage, class OutputMessage>
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friend Status BlockingUnaryCall(ChannelInterface* channel,
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const RpcMethod& method,
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ClientContext* context,
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const InputMessage& request,
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OutputMessage* result);
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grpc_call* call() { return call_; }
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void set_call(grpc_call* call,
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const std::shared_ptr<ChannelInterface>& channel);
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grpc_completion_queue* cq() { return cq_; }
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void set_cq(grpc_completion_queue* cq) { cq_ = cq; }
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grpc::string authority() { return authority_; }
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bool initial_metadata_received_;
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std::shared_ptr<ChannelInterface> channel_;
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grpc_call* call_;
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grpc_completion_queue* cq_;
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gpr_timespec deadline_;
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grpc::string authority_;
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std::shared_ptr<Credentials> creds_;
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census_context* census_context_;
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std::multimap<grpc::string, grpc::string> send_initial_metadata_;
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std::multimap<grpc::string, grpc::string> recv_initial_metadata_;
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std::multimap<grpc::string, grpc::string> trailing_metadata_;
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};
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} // namespace grpc
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#endif // GRPCXX_CLIENT_CONTEXT_H
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