src/core/compression/algorithm.c

/*
 *
 * Copyright 2015, Google Inc.
 * All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 */

#include <stdlib.h>
#include <grpc/compression.h>

const char *grpc_compression_algorithm_name(
    grpc_compression_algorithm algorithm) {
  switch (algorithm) {
    case GRPC_COMPRESS_NONE:
      return "none";
    case GRPC_COMPRESS_DEFLATE:
      return "deflate";
    case GRPC_COMPRESS_GZIP:
      return "gzip";
    case GRPC_COMPRESS_ALGORITHMS_COUNT:
      return "error";
  }
  return "error";
}

/* TODO(dgq): Add the ability to specify parameters to the individual
 * compression algorithms */
grpc_compression_algorithm grpc_compression_algorithm_for_level(
    grpc_compression_level level) {
  switch (level) {
    case GRPC_COMPRESS_LEVEL_NONE:
      return GRPC_COMPRESS_NONE;
    case GRPC_COMPRESS_LEVEL_LOW:
    case GRPC_COMPRESS_LEVEL_MED:
    case GRPC_COMPRESS_LEVEL_HIGH:
      return GRPC_COMPRESS_DEFLATE;
    default:
      /* we shouldn't be making it here */
      abort();
  }
}