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https://fuchsia.googlesource.com/third_party/grpc
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80 lines
3.0 KiB
C
80 lines
3.0 KiB
C
/*
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*
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* Copyright 2015, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef GRPC_COMPRESSION_H
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#define GRPC_COMPRESSION_H
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/** To be used in channel arguments */
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#define GRPC_COMPRESSION_LEVEL_ARG "grpc.compression_level"
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/* The various compression algorithms supported by GRPC */
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typedef enum {
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GRPC_COMPRESS_NONE = 0,
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GRPC_COMPRESS_DEFLATE,
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GRPC_COMPRESS_GZIP,
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/* TODO(ctiller): snappy */
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GRPC_COMPRESS_ALGORITHMS_COUNT
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} grpc_compression_algorithm;
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typedef enum {
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GRPC_COMPRESS_LEVEL_NONE = 0,
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GRPC_COMPRESS_LEVEL_LOW,
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GRPC_COMPRESS_LEVEL_MED,
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GRPC_COMPRESS_LEVEL_HIGH,
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GRPC_COMPRESS_LEVEL_COUNT
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} grpc_compression_level;
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/** Parses \a name as a grpc_compression_algorithm instance, updating \a
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* algorithm. Returns 1 upon success, 0 otherwise. */
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int grpc_compression_algorithm_parse(const char *name,
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grpc_compression_algorithm *algorithm);
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/** Updates \a name with the encoding name corresponding to a valid \a
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* algorithm. Returns 1 upon success, 0 otherwise. */
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int grpc_compression_algorithm_name(grpc_compression_algorithm algorithm,
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char **name);
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/** Returns the compression level corresponding to \a algorithm.
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*
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* It abort()s for unknown algorithms. */
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grpc_compression_level grpc_compression_level_for_algorithm(
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grpc_compression_algorithm algorithm);
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/** Returns the compression algorithm corresponding to \a level.
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*
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* It abort()s for unknown levels . */
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grpc_compression_algorithm grpc_compression_algorithm_for_level(
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grpc_compression_level level);
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#endif /* GRPC_COMPRESSION_H */
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