| /* |
| * |
| * 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/grpc.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/time.h> |
| #include <grpc++/security/auth_context.h> |
| #include <grpc++/support/config.h> |
| #include <grpc++/support/status.h> |
| #include <grpc++/support/string_ref.h> |
| #include <grpc++/support/time.h> |
| |
| struct census_context; |
| |
| namespace grpc { |
| |
| class Channel; |
| 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 ServerContext; |
| |
| class PropagationOptions { |
| public: |
| PropagationOptions() : propagate_(GRPC_PROPAGATE_DEFAULTS) {} |
| |
| PropagationOptions& enable_deadline_propagation() { |
| propagate_ |= GRPC_PROPAGATE_DEADLINE; |
| return *this; |
| } |
| |
| PropagationOptions& disable_deadline_propagation() { |
| propagate_ &= ~GRPC_PROPAGATE_DEADLINE; |
| return *this; |
| } |
| |
| PropagationOptions& enable_census_stats_propagation() { |
| propagate_ |= GRPC_PROPAGATE_CENSUS_STATS_CONTEXT; |
| return *this; |
| } |
| |
| PropagationOptions& disable_census_stats_propagation() { |
| propagate_ &= ~GRPC_PROPAGATE_CENSUS_STATS_CONTEXT; |
| return *this; |
| } |
| |
| PropagationOptions& enable_census_tracing_propagation() { |
| propagate_ |= GRPC_PROPAGATE_CENSUS_TRACING_CONTEXT; |
| return *this; |
| } |
| |
| PropagationOptions& disable_census_tracing_propagation() { |
| propagate_ &= ~GRPC_PROPAGATE_CENSUS_TRACING_CONTEXT; |
| return *this; |
| } |
| |
| PropagationOptions& enable_cancellation_propagation() { |
| propagate_ |= GRPC_PROPAGATE_CANCELLATION; |
| return *this; |
| } |
| |
| PropagationOptions& disable_cancellation_propagation() { |
| propagate_ &= ~GRPC_PROPAGATE_CANCELLATION; |
| return *this; |
| } |
| |
| gpr_uint32 c_bitmask() const { return propagate_; } |
| |
| private: |
| gpr_uint32 propagate_; |
| }; |
| |
| namespace testing { |
| class InteropClientContextInspector; |
| } // namespace testing |
| |
| class ClientContext { |
| public: |
| ClientContext(); |
| ~ClientContext(); |
| |
| /// Create a new ClientContext that propagates some or all of its attributes |
| static std::unique_ptr<ClientContext> FromServerContext( |
| const ServerContext& server_context, |
| PropagationOptions options = PropagationOptions()); |
| |
| void AddMetadata(const grpc::string& meta_key, |
| const grpc::string& meta_value); |
| |
| const std::multimap<grpc::string_ref, grpc::string_ref>& |
| GetServerInitialMetadata() { |
| GPR_ASSERT(initial_metadata_received_); |
| return recv_initial_metadata_; |
| } |
| |
| const std::multimap<grpc::string_ref, grpc::string_ref>& |
| 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 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(struct census_context* ccp) { census_context_ = ccp; } |
| struct census_context* census_context() const { |
| return census_context_; |
| } |
| |
| void TryCancel(); |
| |
| private: |
| // Disallow copy and assign. |
| ClientContext(const ClientContext&); |
| ClientContext& operator=(const ClientContext&); |
| |
| friend class ::grpc::testing::InteropClientContextInspector; |
| 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(Channel* 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<Channel>& channel); |
| |
| grpc::string authority() { return authority_; } |
| |
| bool initial_metadata_received_; |
| std::shared_ptr<Channel> channel_; |
| grpc_call* call_; |
| gpr_timespec deadline_; |
| grpc::string authority_; |
| std::shared_ptr<Credentials> creds_; |
| mutable std::shared_ptr<const AuthContext> auth_context_; |
| struct census_context* census_context_; |
| std::multimap<grpc::string, grpc::string> send_initial_metadata_; |
| std::multimap<grpc::string_ref, grpc::string_ref> recv_initial_metadata_; |
| std::multimap<grpc::string_ref, grpc::string_ref> trailing_metadata_; |
| |
| grpc_call* propagate_from_call_; |
| PropagationOptions propagation_options_; |
| |
| grpc_compression_algorithm compression_algorithm_; |
| }; |
| |
| } // namespace grpc |
| |
| #endif // GRPCXX_CLIENT_CONTEXT_H |