lidavidm commented on a change in pull request #12465:
URL: https://github.com/apache/arrow/pull/12465#discussion_r816764735
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File path: cpp/src/arrow/flight/client.cc
##########
@@ -1399,21 +1328,41 @@ Status FlightClient::DoPut(const FlightCallOptions&
options,
std::unique_ptr<FlightStreamWriter>* stream,
std::unique_ptr<FlightMetadataReader>* reader) {
RETURN_NOT_OK(CheckOpen());
- return impl_->DoPut(options, descriptor, schema, stream, reader);
+ std::unique_ptr<internal::ClientDataStream> remote_stream;
+ RETURN_NOT_OK(impl_->DoPut(options, &remote_stream));
+ std::shared_ptr<internal::ClientDataStream> shared_stream =
std::move(remote_stream);
+ *reader =
+ std::unique_ptr<FlightMetadataReader>(new
ClientMetadataReader(shared_stream));
+ *stream = std::unique_ptr<FlightStreamWriter>(
+ new ClientStreamWriter(std::move(shared_stream), options.write_options,
+ write_size_limit_bytes_, descriptor));
+ RETURN_NOT_OK((*stream)->Begin(schema, options.write_options));
+ return Status::OK();
}
Status FlightClient::DoExchange(const FlightCallOptions& options,
const FlightDescriptor& descriptor,
std::unique_ptr<FlightStreamWriter>* writer,
std::unique_ptr<FlightStreamReader>* reader) {
RETURN_NOT_OK(CheckOpen());
- return impl_->DoExchange(options, descriptor, writer, reader);
+ std::unique_ptr<internal::ClientDataStream> remote_stream;
+ RETURN_NOT_OK(impl_->DoExchange(options, &remote_stream));
+ std::shared_ptr<internal::ClientDataStream> shared_stream =
std::move(remote_stream);
+ *reader = std::unique_ptr<FlightStreamReader>(
+ new ClientStreamReader(shared_stream, options.read_options,
options.stop_token));
+ auto stream_writer = std::unique_ptr<ClientStreamWriter>(
+ new ClientStreamWriter(std::move(shared_stream), options.write_options,
+ write_size_limit_bytes_, descriptor));
+ RETURN_NOT_OK(stream_writer->Begin());
+ *writer = std::move(stream_writer);
+ return Status::OK();
}
Status FlightClient::Close() {
- // gRPC doesn't offer an explicit shutdown
- impl_.reset(nullptr);
- // TODO(ARROW-15473): if we track ongoing RPCs, we can cancel them first
+ if (impl_) {
+ RETURN_NOT_OK(impl_->Close());
+ impl_.reset(nullptr);
Review comment:
It's also very unreliable: I can run the test many many times before it
hangs.
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