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Makefile
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README.md
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harness.c
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zstd_decompress.c
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zstd_decompress.h
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Editing: zstd_decompress.h
/* * Copyright (c) 2016-2020, Facebook, Inc. * All rights reserved. * * This source code is licensed under both the BSD-style license (found in the * LICENSE file in the root directory of this source tree) and the GPLv2 (found * in the COPYING file in the root directory of this source tree). * You may select, at your option, one of the above-listed licenses. */ #include <stddef.h> /* size_t */ /******* EXPOSED TYPES ********************************************************/ /* * Contains the parsed contents of a dictionary * This includes Huffman and FSE tables used for decoding and data on offsets */ typedef struct dictionary_s dictionary_t; /******* END EXPOSED TYPES ****************************************************/ /******* DECOMPRESSION FUNCTIONS **********************************************/ /// Zstandard decompression functions. /// `dst` must point to a space at least as large as the reconstructed output. size_t ZSTD_decompress(void *const dst, const size_t dst_len, const void *const src, const size_t src_len); /// If `dict != NULL` and `dict_len >= 8`, does the same thing as /// `ZSTD_decompress` but uses the provided dict size_t ZSTD_decompress_with_dict(void *const dst, const size_t dst_len, const void *const src, const size_t src_len, dictionary_t* parsed_dict); /// Get the decompressed size of an input stream so memory can be allocated in /// advance /// Returns -1 if the size can't be determined /// Assumes decompression of a single frame size_t ZSTD_get_decompressed_size(const void *const src, const size_t src_len); /******* END DECOMPRESSION FUNCTIONS ******************************************/ /******* DICTIONARY MANAGEMENT ***********************************************/ /* * Return a valid dictionary_t pointer for use with dictionary initialization * or decompression */ dictionary_t* create_dictionary(void); /* * Parse a provided dictionary blob for use in decompression * `src` -- must point to memory space representing the dictionary * `src_len` -- must provide the dictionary size * `dict` -- will contain the parsed contents of the dictionary and * can be used for decompression */ void parse_dictionary(dictionary_t *const dict, const void *src, size_t src_len); /* * Free internal Huffman tables, FSE tables, and dictionary content */ void free_dictionary(dictionary_t *const dict); /******* END DICTIONARY MANAGEMENT *******************************************/
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