Initial checkin of gRPC to third_party/

third_party/grpc/test/cpp/util/cli_call.cc

+/*
+ *
+ * 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++/completion_queue.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