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/*
*
* Copyright 2015-2016, 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 "test/cpp/util/cli_call.h"
#include <iostream>
#include <grpc++/channel.h>
#include <grpc++/client_context.h>
#include <grpc++/generic/generic_stub.h>
#include <grpc++/support/byte_buffer.h>
#include <grpc/grpc.h>
#include <grpc/support/log.h>
#include <grpc/support/slice.h>
namespace grpc {
namespace testing {
namespace {
void* tag(int i) { return (void*)(intptr_t)i; }
} // namespace
Status CliCall::Call(std::shared_ptr<grpc::Channel> channel,
const grpc::string& method, const grpc::string& request,
grpc::string* response,
const OutgoingMetadataContainer& metadata,
IncomingMetadataContainer* server_initial_metadata,
IncomingMetadataContainer* server_trailing_metadata) {
std::unique_ptr<grpc::GenericStub> stub(new grpc::GenericStub(channel));
grpc::ClientContext ctx;
if (!metadata.empty()) {
for (OutgoingMetadataContainer::const_iterator iter = metadata.begin();
iter != metadata.end(); ++iter) {
ctx.AddMetadata(iter->first, iter->second);
}
}
grpc::CompletionQueue cq;
std::unique_ptr<grpc::GenericClientAsyncReaderWriter> call(
stub->Call(&ctx, method, &cq, tag(1)));
void* got_tag;
bool ok;
cq.Next(&got_tag, &ok);
GPR_ASSERT(ok);
gpr_slice s = gpr_slice_from_copied_string(request.c_str());
grpc::Slice req_slice(s, grpc::Slice::STEAL_REF);
grpc::ByteBuffer send_buffer(&req_slice, 1);
call->Write(send_buffer, tag(2));
cq.Next(&got_tag, &ok);
GPR_ASSERT(ok);
call->WritesDone(tag(3));
cq.Next(&got_tag, &ok);
GPR_ASSERT(ok);
grpc::ByteBuffer recv_buffer;
call->Read(&recv_buffer, tag(4));
cq.Next(&got_tag, &ok);
if (!ok) {
std::cout << "Failed to read response." << std::endl;
return Status(StatusCode::INTERNAL, "Failed to read response");
}
grpc::Status status;
call->Finish(&status, tag(5));
cq.Next(&got_tag, &ok);
GPR_ASSERT(ok);
if (status.ok()) {
std::vector<grpc::Slice> slices;
recv_buffer.Dump(&slices);
response->clear();
for (size_t i = 0; i < slices.size(); i++) {
response->append(reinterpret_cast<const char*>(slices[i].begin()),
slices[i].size());
}
}
*server_initial_metadata = ctx.GetServerInitialMetadata();
*server_trailing_metadata = ctx.GetServerTrailingMetadata();
return status;
}
} // namespace testing
} // namespace grpc
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