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/*
*
* Copyright 2014, 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.
*
*/
#include <grpc++/impl/client_unary_call.h>
#include <grpc++/impl/call.h>
#include <grpc++/channel_interface.h>
#include <grpc++/client_context.h>
#include <grpc++/completion_queue.h>
#include <grpc++/status.h>
#include <grpc/support/log.h>
namespace grpc {
// Wrapper that performs a blocking unary call
Status BlockingUnaryCall(ChannelInterface *channel, const RpcMethod &method,
ClientContext *context,
const google::protobuf::Message &request,
google::protobuf::Message *result) {
CompletionQueue cq;
Call call(channel->CreateCall(method, context, &cq));
CallOpBuffer buf;
Status status;
buf.AddSendInitialMetadata(context);
buf.AddSendMessage(request);
buf.AddRecvInitialMetadata(&context->recv_initial_metadata_);
buf.AddRecvMessage(result);
buf.AddClientSendClose();
buf.AddClientRecvStatus(&context->trailing_metadata_, &status);
call.PerformOps(&buf);
GPR_ASSERT(cq.Pluck(&buf) && (buf.got_message || !status.IsOk()));
return status;
}
class ClientAsyncRequest final : public CallOpBuffer {
public:
void FinalizeResult(void** tag, bool* status) override {
CallOpBuffer::FinalizeResult(tag, status);
delete this;
}
};
void AsyncUnaryCall(ChannelInterface *channel, const RpcMethod &method,
ClientContext *context,
const google::protobuf::Message &request,
google::protobuf::Message *result, Status *status,
CompletionQueue *cq, void *tag) {
ClientAsyncRequest* buf = new ClientAsyncRequest;
buf->Reset(tag);
Call call(channel->CreateCall(method, context, cq));
buf->AddSendInitialMetadata(context);
buf->AddSendMessage(request);
buf->AddRecvInitialMetadata(&context->recv_initial_metadata_);
buf->AddRecvMessage(result);
buf->AddClientSendClose();
buf->AddClientRecvStatus(&context->trailing_metadata_, status);
call.PerformOps(buf);
}
} // namespace grpc
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