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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
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113 lines
4.4 KiB
113 lines
4.4 KiB
/* |
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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 GRPC_TEST_CPP_UTIL_CLI_CALL_H |
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#define GRPC_TEST_CPP_UTIL_CLI_CALL_H |
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#include <map> |
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#include <grpc++/channel.h> |
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#include <grpc++/completion_queue.h> |
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#include <grpc++/generic/generic_stub.h> |
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#include <grpc++/support/status.h> |
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#include <grpc++/support/string_ref.h> |
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namespace grpc { |
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class ClientContext; |
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namespace testing { |
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// CliCall handles the sending and receiving of generic messages given the name |
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// of the remote method. This class is only used by GrpcTool. Its thread-safe |
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// and thread-unsafe methods should not be used together. |
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class CliCall final { |
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public: |
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typedef std::multimap<grpc::string, grpc::string> OutgoingMetadataContainer; |
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typedef std::multimap<grpc::string_ref, grpc::string_ref> |
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IncomingMetadataContainer; |
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CliCall(std::shared_ptr<grpc::Channel> channel, const grpc::string& method, |
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const OutgoingMetadataContainer& metadata); |
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~CliCall(); |
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// Perform an unary generic RPC. |
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static Status Call(std::shared_ptr<grpc::Channel> channel, |
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const grpc::string& method, const grpc::string& request, |
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grpc::string* response, |
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const OutgoingMetadataContainer& metadata, |
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IncomingMetadataContainer* server_initial_metadata, |
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IncomingMetadataContainer* server_trailing_metadata); |
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// Send a generic request message in a synchronous manner. NOT thread-safe. |
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void Write(const grpc::string& request); |
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// Send a generic request message in a synchronous manner. NOT thread-safe. |
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void WritesDone(); |
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// Receive a generic response message in a synchronous manner.NOT thread-safe. |
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bool Read(grpc::string* response, |
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IncomingMetadataContainer* server_initial_metadata); |
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// Thread-safe write. Must be used with ReadAndMaybeNotifyWrite. Send out a |
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// generic request message and wait for ReadAndMaybeNotifyWrite to finish it. |
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void WriteAndWait(const grpc::string& request); |
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// Thread-safe WritesDone. Must be used with ReadAndMaybeNotifyWrite. Send out |
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// WritesDone for gereneric request messages and wait for |
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// ReadAndMaybeNotifyWrite to finish it. |
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void WritesDoneAndWait(); |
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// Thread-safe Read. Blockingly receive a generic response message. Notify |
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// writes if they are finished when this read is waiting for a resposne. |
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bool ReadAndMaybeNotifyWrite( |
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grpc::string* response, |
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IncomingMetadataContainer* server_initial_metadata); |
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// Finish the RPC. |
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Status Finish(IncomingMetadataContainer* server_trailing_metadata); |
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private: |
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std::unique_ptr<grpc::GenericStub> stub_; |
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grpc::ClientContext ctx_; |
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std::unique_ptr<grpc::GenericClientAsyncReaderWriter> call_; |
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grpc::CompletionQueue cq_; |
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gpr_mu write_mu_; |
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gpr_cv write_cv_; // Protected by write_mu_; |
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bool write_done_; // Portected by write_mu_; |
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}; |
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} // namespace testing |
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} // namespace grpc |
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#endif // GRPC_TEST_CPP_UTIL_CLI_CALL_H
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