Program Listing for File file_source.hpp

            

            
#pragma once

#include "morpheus/messages/meta.hpp"

#include <cudf/io/types.hpp>// for table_with_metadata
#include <mrc/channel/status.hpp>// for Status
#include <mrc/node/source_properties.hpp>// for SourceProperties<>::source_type_t
#include <mrc/segment/builder.hpp>
#include <mrc/segment/object.hpp>// for Object
#include <pymrc/node.hpp>
#include <rxcpp/rx.hpp>// for apply, make_subscriber, observable_member, is_on_error<>::not_void, is_on_next_of<>::not_void, trace_activity

#include <memory>
#include <string>
#include <vector>// for vector

namespace morpheus {
/****** Component public implementations *******************/
/****** FileSourceStage*************************************/

#pragma GCC visibility push(default)
class FileSourceStage : public mrc::pymrc::PythonSource<std::shared_ptr<MessageMeta>>
{
  public:
    using base_t = mrc::pymrc::PythonSource<std::shared_ptr<MessageMeta>>;
    using typename base_t::source_type_t;
    using typename base_t::subscriber_fn_t;

    FileSourceStage(std::string filename, int repeat = 1);

  private:
    subscriber_fn_t build();

    std::string m_filename;
    int m_repeat{1};
};

/****** FileSourceStageInterfaceProxy***********************/
struct FileSourceStageInterfaceProxy
{
    static std::shared_ptr<mrc::segment::Object<FileSourceStage>> init(mrc::segment::Builder& builder,
                                                                       const std::string& name,
                                                                       std::string filename,
                                                                       int repeat = 1);
};
#pragma GCC visibility pop// end of group
}  // namespace morpheus