featherwritemex.cc

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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
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#include <string>

#include <mex.h>

#include "feather_writer.h"
#include "util/handle_status.h"

// MEX gateway function. This is the entry point for featherwritemex.cc.
void mexFunction(int nlhs, mxArray* plhs[], int nrhs, const mxArray* prhs[]) {
  const std::string filename{mxArrayToUTF8String(prhs[0])};

  // Open a Feather file at the provided file path for writing.
  std::shared_ptr<arrow::matlab::FeatherWriter> feather_writer{nullptr};
  arrow::matlab::util::HandleStatus(
      arrow::matlab::FeatherWriter::Open(filename, &feather_writer));

  // Write the Feather file table variables and table metadata from MATLAB.
  feather_writer->WriteMetadata(prhs[2]);
  arrow::matlab::util::HandleStatus(feather_writer->WriteVariables(prhs[1]));
}