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include
grpc++
impl
client_unary_call.h
Go to the documentation of this file.
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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 GRPCXX_IMPL_CLIENT_UNARY_CALL_H
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#define GRPCXX_IMPL_CLIENT_UNARY_CALL_H
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#include <
grpc++/config.h
>
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#include <
grpc++/status.h
>
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#include <
grpc++/impl/call.h
>
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namespace
grpc {
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class
ChannelInterface;
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class
ClientContext;
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class
CompletionQueue;
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class
RpcMethod;
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// Wrapper that performs a blocking unary call
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template
<
class
InputMessage,
class
OutputMessage>
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Status
BlockingUnaryCall
(
ChannelInterface
* channel,
const
RpcMethod
& method,
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ClientContext
* context,
const
InputMessage& request,
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OutputMessage* result) {
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CompletionQueue
cq;
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Call
call(channel->
CreateCall
(method, context, &cq));
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CallOpSet
<
CallOpSendInitialMetadata
,
CallOpSendMessage
,
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CallOpRecvInitialMetadata
,
CallOpRecvMessage<OutputMessage>
,
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CallOpClientSendClose
,
CallOpClientRecvStatus
> ops;
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Status
status = ops.SendMessage(request);
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if
(!status.
ok
()) {
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return
status;
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}
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ops.SendInitialMetadata(context->send_initial_metadata_);
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ops.RecvInitialMetadata(context);
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ops.RecvMessage(result);
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ops.ClientSendClose();
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ops.ClientRecvStatus(context, &status);
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call.PerformOps(&ops);
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GPR_ASSERT((cq.Pluck(&ops) && ops.got_message) || !status.
ok
());
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return
status;
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}
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}
// namespace grpc
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#endif // GRPCXX_IMPL_CLIENT_UNARY_CALL_H
grpc::CallOpClientRecvStatus
Definition:
call.h:431
config.h
grpc::ClientContext
Definition:
client_context.h:74
grpc::ChannelInterface::CreateCall
virtual Call CreateCall(const RpcMethod &method, ClientContext *context, CompletionQueue *cq)=0
grpc::CallOpSendMessage
Definition:
call.h:190
grpc::CallOpClientSendClose
Definition:
call.h:341
grpc::Call
Definition:
call.h:565
grpc::ChannelInterface
Definition:
channel_interface.h:52
call.h
grpc::BlockingUnaryCall
Status BlockingUnaryCall(ChannelInterface *channel, const RpcMethod &method, ClientContext *context, const InputMessage &request, OutputMessage *result)
Definition:
client_unary_call.h:51
grpc::CallOpSet
Primary implementaiton of CallOpSetInterface.
Definition:
call.h:506
grpc::CallOpRecvMessage
Definition:
call.h:237
grpc::CompletionQueue
Definition:
completion_queue.h:87
status.h
grpc::RpcMethod
Definition:
rpc_method.h:39
grpc::Status::ok
bool ok() const
Definition:
status.h:55
grpc::Status
Definition:
status.h:42
grpc::CallOpSendInitialMetadata
Definition:
call.h:159
grpc::CallOpRecvInitialMetadata
Definition:
call.h:402
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