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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| /* | ||
| * Copyright (c) 2016-2021, 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. | ||
| */ | ||
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| #include "zstd_trace.h" | ||
| #include "../zstd.h" | ||
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| #include "compiler.h" | ||
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| #if ZSTD_TRACE && ZSTD_HAVE_WEAK_SYMBOLS | ||
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| ZSTD_WEAK_ATTR int ZSTD_trace_compress_begin(ZSTD_CCtx const* cctx) | ||
| { | ||
| (void)cctx; | ||
| return 0; | ||
| } | ||
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| ZSTD_WEAK_ATTR void ZSTD_trace_compress_end(ZSTD_CCtx const* cctx, ZSTD_trace const* trace) | ||
| { | ||
| (void)cctx; | ||
| (void)trace; | ||
| } | ||
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| ZSTD_WEAK_ATTR int ZSTD_trace_decompress_begin(ZSTD_DCtx const* dctx) | ||
| { | ||
| (void)dctx; | ||
| return 0; | ||
| } | ||
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| ZSTD_WEAK_ATTR void ZSTD_trace_decompress_end(ZSTD_DCtx const* dctx, ZSTD_trace const* trace) | ||
| { | ||
| (void)dctx; | ||
| (void)trace; | ||
| } | ||
|
|
||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| /* | ||
| * Copyright (c) 2016-2021, 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. | ||
| */ | ||
|
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| #ifndef ZSTD_TRACE_H | ||
| #define ZSTD_TRACE_H | ||
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| #include <stddef.h> | ||
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| /* weak symbol support */ | ||
| #if !defined(ZSTD_HAVE_WEAK_SYMBOLS) && defined(__GNUC__) && \ | ||
| !defined(__APPLE__) && !defined(_WIN32) && !defined(__MINGW32__) && \ | ||
| !defined(__CYGWIN__) | ||
| # define ZSTD_HAVE_WEAK_SYMBOLS 1 | ||
| #else | ||
| # define ZSTD_HAVE_WEAK_SYMBOLS 0 | ||
| #endif | ||
| #if ZSTD_HAVE_WEAK_SYMBOLS | ||
| # define ZSTD_WEAK_ATTR __attribute__((__weak__)) | ||
| #else | ||
| # define ZSTD_WEAK_ATTR | ||
| #endif | ||
|
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| /* Only enable tracing when weak symbols are available. */ | ||
| #ifndef ZSTD_TRACE | ||
| # define ZSTD_TRACE ZSTD_HAVE_WEAK_SYMBOLS | ||
| #endif | ||
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| #if ZSTD_TRACE | ||
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| struct ZSTD_CCtx_s; | ||
| struct ZSTD_DCtx_s; | ||
| struct ZSTD_CCtx_params_s; | ||
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| typedef struct { | ||
| /** | ||
| * ZSTD_VERSION_NUMBER | ||
| * | ||
| * This is guaranteed to be the first member of ZSTD_trace. | ||
| * Otherwise, this struct is not stable between versions. If | ||
| * the version number does not match your expectation, you | ||
| * should not interpret the rest of the struct. | ||
| */ | ||
| unsigned version; | ||
| /** | ||
| * Non-zero if streaming (de)compression is used. | ||
| */ | ||
| unsigned streaming; | ||
| /** | ||
| * The dictionary ID. | ||
| */ | ||
| unsigned dictionaryID; | ||
| /** | ||
| * Is the dictionary cold? | ||
| * Only set on decompression. | ||
| */ | ||
| unsigned dictionaryIsCold; | ||
| /** | ||
| * The dictionary size or zero if no dictionary. | ||
| */ | ||
| size_t dictionarySize; | ||
| /** | ||
| * The uncompressed size of the data. | ||
| */ | ||
| size_t uncompressedSize; | ||
| /** | ||
| * The compressed size of the data. | ||
| */ | ||
| size_t compressedSize; | ||
| /** | ||
| * The fully resolved CCtx parameters (NULL on decompression). | ||
| */ | ||
| struct ZSTD_CCtx_params_s const* params; | ||
| } ZSTD_trace; | ||
|
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| /** | ||
| * Trace the beginning of a compression call. | ||
| * @param cctx The dctx pointer for the compression. | ||
| * It can be used as a key to map begin() to end(). | ||
| * @returns Non-zero if tracing is enabled. | ||
| */ | ||
| int ZSTD_trace_compress_begin(struct ZSTD_CCtx_s const* cctx); | ||
|
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| /** | ||
| * Trace the end of a compression call. | ||
| * @param cctx The dctx pointer for the decompression. | ||
| * @param trace The zstd tracing info. | ||
| */ | ||
| void ZSTD_trace_compress_end( | ||
| struct ZSTD_CCtx_s const* cctx, | ||
| ZSTD_trace const* trace); | ||
|
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| /** | ||
| * Trace the beginning of a decompression call. | ||
| * @param dctx The dctx pointer for the decompression. | ||
| * It can be used as a key to map begin() to end(). | ||
| * @returns Non-zero if tracing is enabled. | ||
| */ | ||
| int ZSTD_trace_decompress_begin(struct ZSTD_DCtx_s const* dctx); | ||
|
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| /** | ||
| * Trace the end of a decompression call. | ||
| * @param dctx The dctx pointer for the decompression. | ||
| * @param trace The zstd tracing info. | ||
| */ | ||
| void ZSTD_trace_decompress_end( | ||
| struct ZSTD_DCtx_s const* dctx, | ||
| ZSTD_trace const* trace); | ||
|
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| #endif /* ZSTD_TRACE */ | ||
|
|
||
| #endif /* ZSTD_TRACE_H */ |
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