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authorDaniel J Walsh <dwalsh@redhat.com>2019-08-01 03:46:14 -0400
committerDaniel J Walsh <dwalsh@redhat.com>2019-08-01 03:46:14 -0400
commit9d6dce119949d340ebb42becae018a3c11148690 (patch)
treec0bb999f9bddbc9379f9f7b159194d35c077fb36 /vendor/github.com/DataDog/zstd/zbuff.h
parent39de184b8bfb14954f77190f0e6127c1ddc363c0 (diff)
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github.com/containers/storage v1.12.13
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Diffstat (limited to 'vendor/github.com/DataDog/zstd/zbuff.h')
-rw-r--r--vendor/github.com/DataDog/zstd/zbuff.h213
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diff --git a/vendor/github.com/DataDog/zstd/zbuff.h b/vendor/github.com/DataDog/zstd/zbuff.h
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-/*
- * Copyright (c) 2016-present, Yann Collet, 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.
- */
-
-/* ***************************************************************
-* NOTES/WARNINGS
-******************************************************************/
-/* The streaming API defined here is deprecated.
- * Consider migrating towards ZSTD_compressStream() API in `zstd.h`
- * See 'lib/README.md'.
- *****************************************************************/
-
-
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
-#ifndef ZSTD_BUFFERED_H_23987
-#define ZSTD_BUFFERED_H_23987
-
-/* *************************************
-* Dependencies
-***************************************/
-#include <stddef.h> /* size_t */
-#include "zstd.h" /* ZSTD_CStream, ZSTD_DStream, ZSTDLIB_API */
-
-
-/* ***************************************************************
-* Compiler specifics
-*****************************************************************/
-/* Deprecation warnings */
-/* Should these warnings be a problem,
- it is generally possible to disable them,
- typically with -Wno-deprecated-declarations for gcc
- or _CRT_SECURE_NO_WARNINGS in Visual.
- Otherwise, it's also possible to define ZBUFF_DISABLE_DEPRECATE_WARNINGS */
-#ifdef ZBUFF_DISABLE_DEPRECATE_WARNINGS
-# define ZBUFF_DEPRECATED(message) ZSTDLIB_API /* disable deprecation warnings */
-#else
-# if defined (__cplusplus) && (__cplusplus >= 201402) /* C++14 or greater */
-# define ZBUFF_DEPRECATED(message) [[deprecated(message)]] ZSTDLIB_API
-# elif (defined(__GNUC__) && (__GNUC__ >= 5)) || defined(__clang__)
-# define ZBUFF_DEPRECATED(message) ZSTDLIB_API __attribute__((deprecated(message)))
-# elif defined(__GNUC__) && (__GNUC__ >= 3)
-# define ZBUFF_DEPRECATED(message) ZSTDLIB_API __attribute__((deprecated))
-# elif defined(_MSC_VER)
-# define ZBUFF_DEPRECATED(message) ZSTDLIB_API __declspec(deprecated(message))
-# else
-# pragma message("WARNING: You need to implement ZBUFF_DEPRECATED for this compiler")
-# define ZBUFF_DEPRECATED(message) ZSTDLIB_API
-# endif
-#endif /* ZBUFF_DISABLE_DEPRECATE_WARNINGS */
-
-
-/* *************************************
-* Streaming functions
-***************************************/
-/* This is the easier "buffered" streaming API,
-* using an internal buffer to lift all restrictions on user-provided buffers
-* which can be any size, any place, for both input and output.
-* ZBUFF and ZSTD are 100% interoperable,
-* frames created by one can be decoded by the other one */
-
-typedef ZSTD_CStream ZBUFF_CCtx;
-ZBUFF_DEPRECATED("use ZSTD_createCStream") ZBUFF_CCtx* ZBUFF_createCCtx(void);
-ZBUFF_DEPRECATED("use ZSTD_freeCStream") size_t ZBUFF_freeCCtx(ZBUFF_CCtx* cctx);
-
-ZBUFF_DEPRECATED("use ZSTD_initCStream") size_t ZBUFF_compressInit(ZBUFF_CCtx* cctx, int compressionLevel);
-ZBUFF_DEPRECATED("use ZSTD_initCStream_usingDict") size_t ZBUFF_compressInitDictionary(ZBUFF_CCtx* cctx, const void* dict, size_t dictSize, int compressionLevel);
-
-ZBUFF_DEPRECATED("use ZSTD_compressStream") size_t ZBUFF_compressContinue(ZBUFF_CCtx* cctx, void* dst, size_t* dstCapacityPtr, const void* src, size_t* srcSizePtr);
-ZBUFF_DEPRECATED("use ZSTD_flushStream") size_t ZBUFF_compressFlush(ZBUFF_CCtx* cctx, void* dst, size_t* dstCapacityPtr);
-ZBUFF_DEPRECATED("use ZSTD_endStream") size_t ZBUFF_compressEnd(ZBUFF_CCtx* cctx, void* dst, size_t* dstCapacityPtr);
-
-/*-*************************************************
-* Streaming compression - howto
-*
-* A ZBUFF_CCtx object is required to track streaming operation.
-* Use ZBUFF_createCCtx() and ZBUFF_freeCCtx() to create/release resources.
-* ZBUFF_CCtx objects can be reused multiple times.
-*
-* Start by initializing ZBUF_CCtx.
-* Use ZBUFF_compressInit() to start a new compression operation.
-* Use ZBUFF_compressInitDictionary() for a compression which requires a dictionary.
-*
-* Use ZBUFF_compressContinue() repetitively to consume input stream.
-* *srcSizePtr and *dstCapacityPtr can be any size.
-* The function will report how many bytes were read or written within *srcSizePtr and *dstCapacityPtr.
-* Note that it may not consume the entire input, in which case it's up to the caller to present again remaining data.
-* The content of `dst` will be overwritten (up to *dstCapacityPtr) at each call, so save its content if it matters or change @dst .
-* @return : a hint to preferred nb of bytes to use as input for next function call (it's just a hint, to improve latency)
-* or an error code, which can be tested using ZBUFF_isError().
-*
-* At any moment, it's possible to flush whatever data remains within buffer, using ZBUFF_compressFlush().
-* The nb of bytes written into `dst` will be reported into *dstCapacityPtr.
-* Note that the function cannot output more than *dstCapacityPtr,
-* therefore, some content might still be left into internal buffer if *dstCapacityPtr is too small.
-* @return : nb of bytes still present into internal buffer (0 if it's empty)
-* or an error code, which can be tested using ZBUFF_isError().
-*
-* ZBUFF_compressEnd() instructs to finish a frame.
-* It will perform a flush and write frame epilogue.
-* The epilogue is required for decoders to consider a frame completed.
-* Similar to ZBUFF_compressFlush(), it may not be able to output the entire internal buffer content if *dstCapacityPtr is too small.
-* In which case, call again ZBUFF_compressFlush() to complete the flush.
-* @return : nb of bytes still present into internal buffer (0 if it's empty)
-* or an error code, which can be tested using ZBUFF_isError().
-*
-* Hint : _recommended buffer_ sizes (not compulsory) : ZBUFF_recommendedCInSize() / ZBUFF_recommendedCOutSize()
-* input : ZBUFF_recommendedCInSize==128 KB block size is the internal unit, use this value to reduce intermediate stages (better latency)
-* output : ZBUFF_recommendedCOutSize==ZSTD_compressBound(128 KB) + 3 + 3 : ensures it's always possible to write/flush/end a full block. Skip some buffering.
-* By using both, it ensures that input will be entirely consumed, and output will always contain the result, reducing intermediate buffering.
-* **************************************************/
-
-
-typedef ZSTD_DStream ZBUFF_DCtx;
-ZBUFF_DEPRECATED("use ZSTD_createDStream") ZBUFF_DCtx* ZBUFF_createDCtx(void);
-ZBUFF_DEPRECATED("use ZSTD_freeDStream") size_t ZBUFF_freeDCtx(ZBUFF_DCtx* dctx);
-
-ZBUFF_DEPRECATED("use ZSTD_initDStream") size_t ZBUFF_decompressInit(ZBUFF_DCtx* dctx);
-ZBUFF_DEPRECATED("use ZSTD_initDStream_usingDict") size_t ZBUFF_decompressInitDictionary(ZBUFF_DCtx* dctx, const void* dict, size_t dictSize);
-
-ZBUFF_DEPRECATED("use ZSTD_decompressStream") size_t ZBUFF_decompressContinue(ZBUFF_DCtx* dctx,
- void* dst, size_t* dstCapacityPtr,
- const void* src, size_t* srcSizePtr);
-
-/*-***************************************************************************
-* Streaming decompression howto
-*
-* A ZBUFF_DCtx object is required to track streaming operations.
-* Use ZBUFF_createDCtx() and ZBUFF_freeDCtx() to create/release resources.
-* Use ZBUFF_decompressInit() to start a new decompression operation,
-* or ZBUFF_decompressInitDictionary() if decompression requires a dictionary.
-* Note that ZBUFF_DCtx objects can be re-init multiple times.
-*
-* Use ZBUFF_decompressContinue() repetitively to consume your input.
-* *srcSizePtr and *dstCapacityPtr can be any size.
-* The function will report how many bytes were read or written by modifying *srcSizePtr and *dstCapacityPtr.
-* Note that it may not consume the entire input, in which case it's up to the caller to present remaining input again.
-* The content of `dst` will be overwritten (up to *dstCapacityPtr) at each function call, so save its content if it matters, or change `dst`.
-* @return : 0 when a frame is completely decoded and fully flushed,
-* 1 when there is still some data left within internal buffer to flush,
-* >1 when more data is expected, with value being a suggested next input size (it's just a hint, which helps latency),
-* or an error code, which can be tested using ZBUFF_isError().
-*
-* Hint : recommended buffer sizes (not compulsory) : ZBUFF_recommendedDInSize() and ZBUFF_recommendedDOutSize()
-* output : ZBUFF_recommendedDOutSize== 128 KB block size is the internal unit, it ensures it's always possible to write a full block when decoded.
-* input : ZBUFF_recommendedDInSize == 128KB + 3;
-* just follow indications from ZBUFF_decompressContinue() to minimize latency. It should always be <= 128 KB + 3 .
-* *******************************************************************************/
-
-
-/* *************************************
-* Tool functions
-***************************************/
-ZBUFF_DEPRECATED("use ZSTD_isError") unsigned ZBUFF_isError(size_t errorCode);
-ZBUFF_DEPRECATED("use ZSTD_getErrorName") const char* ZBUFF_getErrorName(size_t errorCode);
-
-/** Functions below provide recommended buffer sizes for Compression or Decompression operations.
-* These sizes are just hints, they tend to offer better latency */
-ZBUFF_DEPRECATED("use ZSTD_CStreamInSize") size_t ZBUFF_recommendedCInSize(void);
-ZBUFF_DEPRECATED("use ZSTD_CStreamOutSize") size_t ZBUFF_recommendedCOutSize(void);
-ZBUFF_DEPRECATED("use ZSTD_DStreamInSize") size_t ZBUFF_recommendedDInSize(void);
-ZBUFF_DEPRECATED("use ZSTD_DStreamOutSize") size_t ZBUFF_recommendedDOutSize(void);
-
-#endif /* ZSTD_BUFFERED_H_23987 */
-
-
-#ifdef ZBUFF_STATIC_LINKING_ONLY
-#ifndef ZBUFF_STATIC_H_30298098432
-#define ZBUFF_STATIC_H_30298098432
-
-/* ====================================================================================
- * The definitions in this section are considered experimental.
- * They should never be used in association with a dynamic library, as they may change in the future.
- * They are provided for advanced usages.
- * Use them only in association with static linking.
- * ==================================================================================== */
-
-/*--- Dependency ---*/
-#define ZSTD_STATIC_LINKING_ONLY /* ZSTD_parameters, ZSTD_customMem */
-#include "zstd.h"
-
-
-/*--- Custom memory allocator ---*/
-/*! ZBUFF_createCCtx_advanced() :
- * Create a ZBUFF compression context using external alloc and free functions */
-ZBUFF_DEPRECATED("use ZSTD_createCStream_advanced") ZBUFF_CCtx* ZBUFF_createCCtx_advanced(ZSTD_customMem customMem);
-
-/*! ZBUFF_createDCtx_advanced() :
- * Create a ZBUFF decompression context using external alloc and free functions */
-ZBUFF_DEPRECATED("use ZSTD_createDStream_advanced") ZBUFF_DCtx* ZBUFF_createDCtx_advanced(ZSTD_customMem customMem);
-
-
-/*--- Advanced Streaming Initialization ---*/
-ZBUFF_DEPRECATED("use ZSTD_initDStream_usingDict") size_t ZBUFF_compressInit_advanced(ZBUFF_CCtx* zbc,
- const void* dict, size_t dictSize,
- ZSTD_parameters params, unsigned long long pledgedSrcSize);
-
-
-#endif /* ZBUFF_STATIC_H_30298098432 */
-#endif /* ZBUFF_STATIC_LINKING_ONLY */
-
-
-#if defined (__cplusplus)
-}
-#endif