Function main

c_glib/example/read-file.c:86–142

}

int
main(int argc, char **argv)
{
  const char *input_path = "/tmp/batch.arrow";
  GArrowMemoryMappedInputStream *input;
  GError *error = NULL;

  if (argc > 1)
    input_path = argv[1];
  input = garrow_memory_mapped_input_stream_new(input_path, &error);
  if (!input) {
    g_print("failed to open file: %s\n", error->message);
    g_error_free(error);
    return EXIT_FAILURE;
  }

  {
    GArrowRecordBatchFileReader *reader;

    reader =
      garrow_record_batch_file_reader_new(GARROW_SEEKABLE_INPUT_STREAM(input), &error);
    if (!reader) {
      g_print("failed to open file reader: %s\n", error->message);
      g_error_free(error);
      g_object_unref(input);
      return EXIT_FAILURE;
    }

    {
      guint i, n;

      n = garrow_record_batch_file_reader_get_n_record_batches(reader);
      for (i = 0; i < n; i++) {
        GArrowRecordBatch *record_batch;

        record_batch =
          garrow_record_batch_file_reader_read_record_batch(reader, i, &error);
        if (!record_batch) {
          g_print("failed to read %u-th record batch: %s\n", i, error->message);
          g_error_free(error);
          g_object_unref(reader);
          g_object_unref(input);
          return EXIT_FAILURE;
        }

        print_record_batch(record_batch);
        g_object_unref(record_batch);
      }
    }

    g_object_unref(reader);
  }

  g_object_unref(input);

  return EXIT_SUCCESS;
}