Function comp_decomp_with_single_manager

examples/high_level_quickstart_example.cpp:110–139

* In this example, we: * 1) construct an nvcompManager * 2) compress the input data * 3) decompress the input data */

 *  3) decompress the input data
 */ 
void comp_decomp_with_single_manager(uint8_t* device_input_ptrs, const size_t input_buffer_len)
{
  cudaStream_t stream;
  CUDA_CHECK(cudaStreamCreate(&stream));

  const int chunk_size = 1 << 16;
  nvcompType_t data_type = NVCOMP_TYPE_CHAR;

  nvcompBatchedLZ4Opts_t format_opts{data_type};
  LZ4Manager nvcomp_manager{chunk_size, format_opts, stream};
  CompressionConfig comp_config = nvcomp_manager.configure_compression(input_buffer_len);

  uint8_t* comp_buffer;
  CUDA_CHECK(cudaMalloc(&comp_buffer, comp_config.max_compressed_buffer_size));
  
  nvcomp_manager.compress(device_input_ptrs, comp_buffer, comp_config);

  DecompressionConfig decomp_config = nvcomp_manager.configure_decompression(comp_buffer);
  uint8_t* res_decomp_buffer;
  CUDA_CHECK(cudaMalloc(&res_decomp_buffer, decomp_config.decomp_data_size));

  nvcomp_manager.decompress(res_decomp_buffer, comp_buffer, decomp_config);

  CUDA_CHECK(cudaStreamSynchronize(stream));

  CUDA_CHECK(cudaFree(comp_buffer));
  CUDA_CHECK(cudaFree(res_decomp_buffer));

  CUDA_CHECK(cudaStreamDestroy(stream));
}

/**
 * Additionally, we can use the same manager to execute multiple streamed compressions / decompressions