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/*
*
* Copyright 2015, 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.
*
*/
#ifndef GRPCXX_GENERIC_GENERIC_STUB_H
#define GRPCXX_GENERIC_GENERIC_STUB_H
#include <grpc++/support/async_stream.h>
#include <grpc++/support/byte_buffer.h>
namespace grpc {
class CompletionQueue;
typedef ClientAsyncReaderWriter<ByteBuffer, ByteBuffer>
GenericClientAsyncReaderWriter;
/// Generic stubs provide a type-unsafe interface to call gRPC methods
/// by name.
class GenericStub final {
public:
explicit GenericStub(std::shared_ptr<ChannelInterface> channel)
: channel_(channel) {}
/// Begin a call to a named method \a method using \a context.
/// A tag \a tag will be delivered to \a cq when the call has been started
/// (i.e, initial metadata has been sent).
/// The return value only indicates whether or not registration of the call
/// succeeded (i.e. the call won't proceed if the return value is nullptr).
std::unique_ptr<GenericClientAsyncReaderWriter> Call(
ClientContext* context, const grpc::string& method, CompletionQueue* cq,
void* tag);
private:
std::shared_ptr<ChannelInterface> channel_;
};
} // namespace grpc
#endif // GRPCXX_GENERIC_GENERIC_STUB_H
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