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105 lines
2.7 KiB
105 lines
2.7 KiB
// 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/module.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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