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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause/* * Copyright (c) Meta Platforms, Inc. and affiliates. * 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 <linux/kernel.h>#include <linux/module.h>#include <linux/string.h>#include <linux/zstd.h>
#include "common/zstd_deps.h"
/* Common symbols. zstd_compress must depend on zstd_decompress. */
unsigned int zstd_is_error(size_t code){ return ZSTD_isError(code);}EXPORT_SYMBOL(zstd_is_error);
zstd_error_code zstd_get_error_code(size_t code){ return ZSTD_getErrorCode(code);}EXPORT_SYMBOL(zstd_get_error_code);
const char *zstd_get_error_name(size_t code){ return ZSTD_getErrorName(code);}EXPORT_SYMBOL(zstd_get_error_name);
/* Decompression symbols. */
size_t zstd_dctx_workspace_bound(void){ return ZSTD_estimateDCtxSize();}EXPORT_SYMBOL(zstd_dctx_workspace_bound);
zstd_dctx *zstd_create_dctx_advanced(zstd_custom_mem custom_mem){ return ZSTD_createDCtx_advanced(custom_mem);}EXPORT_SYMBOL(zstd_create_dctx_advanced);
size_t zstd_free_dctx(zstd_dctx *dctx){ return ZSTD_freeDCtx(dctx);}EXPORT_SYMBOL(zstd_free_dctx);
zstd_ddict *zstd_create_ddict_byreference(const void *dict, size_t dict_size, zstd_custom_mem custom_mem){ return ZSTD_createDDict_advanced(dict, dict_size, ZSTD_dlm_byRef, ZSTD_dct_auto, custom_mem);
}EXPORT_SYMBOL(zstd_create_ddict_byreference);
size_t zstd_free_ddict(zstd_ddict *ddict){ return ZSTD_freeDDict(ddict);}EXPORT_SYMBOL(zstd_free_ddict);
zstd_dctx *zstd_init_dctx(void *workspace, size_t workspace_size){ if (workspace == NULL) return NULL; return ZSTD_initStaticDCtx(workspace, workspace_size);}EXPORT_SYMBOL(zstd_init_dctx);
size_t zstd_decompress_dctx(zstd_dctx *dctx, void *dst, size_t dst_capacity, const void *src, size_t src_size){ return ZSTD_decompressDCtx(dctx, dst, dst_capacity, src, src_size);}EXPORT_SYMBOL(zstd_decompress_dctx);
size_t zstd_decompress_using_ddict(zstd_dctx *dctx, void *dst, size_t dst_capacity, const void* src, size_t src_size, const zstd_ddict* ddict){ return ZSTD_decompress_usingDDict(dctx, dst, dst_capacity, src, src_size, ddict);}EXPORT_SYMBOL(zstd_decompress_using_ddict);
size_t zstd_dstream_workspace_bound(size_t max_window_size){ return ZSTD_estimateDStreamSize(max_window_size);}EXPORT_SYMBOL(zstd_dstream_workspace_bound);
zstd_dstream *zstd_init_dstream(size_t max_window_size, void *workspace, size_t workspace_size){ if (workspace == NULL) return NULL; (void)max_window_size; return ZSTD_initStaticDStream(workspace, workspace_size);}EXPORT_SYMBOL(zstd_init_dstream);
size_t zstd_reset_dstream(zstd_dstream *dstream){ return ZSTD_DCtx_reset(dstream, ZSTD_reset_session_only);}EXPORT_SYMBOL(zstd_reset_dstream);
size_t zstd_decompress_stream(zstd_dstream *dstream, zstd_out_buffer *output, zstd_in_buffer *input){ return ZSTD_decompressStream(dstream, output, input);}EXPORT_SYMBOL(zstd_decompress_stream);
size_t zstd_find_frame_compressed_size(const void *src, size_t src_size){ return ZSTD_findFrameCompressedSize(src, src_size);}EXPORT_SYMBOL(zstd_find_frame_compressed_size);
size_t zstd_get_frame_header(zstd_frame_header *header, const void *src, size_t src_size){ return ZSTD_getFrameHeader(header, src, src_size);}EXPORT_SYMBOL(zstd_get_frame_header);
MODULE_LICENSE("Dual BSD/GPL");MODULE_DESCRIPTION("Zstd Decompressor");