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client_unary_call.h
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33 
34 #ifndef GRPCXX_IMPL_CLIENT_UNARY_CALL_H
35 #define GRPCXX_IMPL_CLIENT_UNARY_CALL_H
36 
37 #include <grpc++/config.h>
38 #include <grpc++/status.h>
39 
40 #include <grpc++/impl/call.h>
41 
42 namespace grpc {
43 
44 class ChannelInterface;
45 class ClientContext;
46 class CompletionQueue;
47 class RpcMethod;
48 
49 // Wrapper that performs a blocking unary call
50 template <class InputMessage, class OutputMessage>
52  ClientContext* context, const InputMessage& request,
53  OutputMessage* result) {
54  CompletionQueue cq;
55  Call call(channel->CreateCall(method, context, &cq));
59  Status status = ops.SendMessage(request);
60  if (!status.ok()) {
61  return status;
62  }
63  ops.SendInitialMetadata(context->send_initial_metadata_);
64  ops.RecvInitialMetadata(context);
65  ops.RecvMessage(result);
66  ops.ClientSendClose();
67  ops.ClientRecvStatus(context, &status);
68  call.PerformOps(&ops);
69  GPR_ASSERT((cq.Pluck(&ops) && ops.got_message) || !status.ok());
70  return status;
71 }
72 
73 } // namespace grpc
74 
75 #endif // GRPCXX_IMPL_CLIENT_UNARY_CALL_H
Definition: call.h:431
Definition: client_context.h:74
virtual Call CreateCall(const RpcMethod &method, ClientContext *context, CompletionQueue *cq)=0
Definition: call.h:190
Definition: call.h:341
Definition: call.h:565
Definition: channel_interface.h:52
Status BlockingUnaryCall(ChannelInterface *channel, const RpcMethod &method, ClientContext *context, const InputMessage &request, OutputMessage *result)
Definition: client_unary_call.h:51
Primary implementaiton of CallOpSetInterface.
Definition: call.h:506
Definition: call.h:237
Definition: completion_queue.h:87
Definition: rpc_method.h:39
bool ok() const
Definition: status.h:55
Definition: status.h:42
Definition: call.h:159
Definition: call.h:402