106 lines
2.7 KiB
C
106 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* Copyright (c) Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under both the BSD-style license (found in the
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* LICENSE file in the root directory of this source tree) and the GPLv2 (found
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* in the COPYING file in the root directory of this source tree).
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* You may select, at your option, one of the above-listed licenses.
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*/
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#include <linux/kernel.h>
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#include <linux/compat.h>
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#include <linux/string.h>
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#include <linux/zstd.h>
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#include "common/zstd_deps.h"
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/* Common symbols. zstd_compress must depend on zstd_decompress. */
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unsigned int zstd_is_error(size_t code)
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{
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return ZSTD_isError(code);
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}
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EXPORT_SYMBOL(zstd_is_error);
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zstd_error_code zstd_get_error_code(size_t code)
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{
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return ZSTD_getErrorCode(code);
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}
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EXPORT_SYMBOL(zstd_get_error_code);
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const char *zstd_get_error_name(size_t code)
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{
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return ZSTD_getErrorName(code);
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}
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EXPORT_SYMBOL(zstd_get_error_name);
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/* Decompression symbols. */
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size_t zstd_dctx_workspace_bound(void)
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{
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return ZSTD_estimateDCtxSize();
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}
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EXPORT_SYMBOL(zstd_dctx_workspace_bound);
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zstd_dctx *zstd_init_dctx(void *workspace, size_t workspace_size)
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{
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if (workspace == NULL)
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return NULL;
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return ZSTD_initStaticDCtx(workspace, workspace_size);
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}
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EXPORT_SYMBOL(zstd_init_dctx);
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size_t zstd_decompress_dctx(zstd_dctx *dctx, void *dst, size_t dst_capacity,
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const void *src, size_t src_size)
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{
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return ZSTD_decompressDCtx(dctx, dst, dst_capacity, src, src_size);
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}
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EXPORT_SYMBOL(zstd_decompress_dctx);
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size_t zstd_dstream_workspace_bound(size_t max_window_size)
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{
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return ZSTD_estimateDStreamSize(max_window_size);
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}
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EXPORT_SYMBOL(zstd_dstream_workspace_bound);
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zstd_dstream *zstd_init_dstream(size_t max_window_size, void *workspace,
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size_t workspace_size)
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{
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if (workspace == NULL)
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return NULL;
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(void)max_window_size;
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return ZSTD_initStaticDStream(workspace, workspace_size);
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}
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EXPORT_SYMBOL(zstd_init_dstream);
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size_t zstd_reset_dstream(zstd_dstream *dstream)
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{
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return ZSTD_resetDStream(dstream);
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}
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EXPORT_SYMBOL(zstd_reset_dstream);
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size_t zstd_decompress_stream(zstd_dstream *dstream, zstd_out_buffer *output,
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zstd_in_buffer *input)
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{
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return ZSTD_decompressStream(dstream, output, input);
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}
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EXPORT_SYMBOL(zstd_decompress_stream);
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size_t zstd_find_frame_compressed_size(const void *src, size_t src_size)
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{
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return ZSTD_findFrameCompressedSize(src, src_size);
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}
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EXPORT_SYMBOL(zstd_find_frame_compressed_size);
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size_t zstd_get_frame_header(zstd_frame_header *header, const void *src,
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size_t src_size)
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{
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return ZSTD_getFrameHeader(header, src, src_size);
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}
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EXPORT_SYMBOL(zstd_get_frame_header);
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MODULE_LICENSE("Dual BSD/GPL");
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MODULE_DESCRIPTION("Zstd Decompressor");
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