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/*
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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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