upstream/mercurial-mirror Files · contrib/python-zstandard/zstd/compress/zstd_double_fast.h

setup: build extensions in parallel by default...

setup: build extensions in parallel by default The build_ext distutils command in Python 3.5+ has a "parallel" option that controls whether to build extensions in parallel. It is disabled by default (None) and can be set to an integer value for number of cores or True to indicate use all available CPU cores. This commit changes our build_ext command override to set "parallel" to True unless a value has been provided by the caller. On my machine, this makes `python setup.py build_ext` 1-4s faster. It is worth noting that at this time, each individual source file constituting the extension is still built serially. For Mercurial, this means that we can't build faster than the slowest-to-build extension, which is the zstd extension by a long shot. This means that setup.py is still not very efficient at utilizing multiple cores. But we're better than before. Differential Revision: https://phab.mercurial-scm.org/D6923 # no-check-commit because of foo_bar naming

Gregory Szorc - - Load All Authors

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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.

       */

      #ifndef ZSTD_DOUBLE_FAST_H

      #define ZSTD_DOUBLE_FAST_H

      #if defined (__cplusplus)

      extern "C" {

      #endif

      #include "mem.h"      /* U32 */

      #include "zstd_compress_internal.h"     /* ZSTD_CCtx, size_t */

      void ZSTD_fillDoubleHashTable(ZSTD_matchState_t* ms,

                                    void const* end, ZSTD_dictTableLoadMethod_e dtlm);

      size_t ZSTD_compressBlock_doubleFast(

              ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],

              void const* src, size_t srcSize);

      size_t ZSTD_compressBlock_doubleFast_dictMatchState(

              ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],

              void const* src, size_t srcSize);

      size_t ZSTD_compressBlock_doubleFast_extDict(

              ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],

              void const* src, size_t srcSize);

      #if defined (__cplusplus)

      }

      #endif

      #endif /* ZSTD_DOUBLE_FAST_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.
				*/

				#ifndef ZSTD_DOUBLE_FAST_H
				#define ZSTD_DOUBLE_FAST_H

				#if defined (__cplusplus)
				extern "C" {
				#endif

				#include "mem.h" /* U32 */
				#include "zstd_compress_internal.h" /* ZSTD_CCtx, size_t */

				void ZSTD_fillDoubleHashTable(ZSTD_matchState_t* ms,
				void const* end, ZSTD_dictTableLoadMethod_e dtlm);
				size_t ZSTD_compressBlock_doubleFast(
				ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
				void const* src, size_t srcSize);
				size_t ZSTD_compressBlock_doubleFast_dictMatchState(
				ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
				void const* src, size_t srcSize);
				size_t ZSTD_compressBlock_doubleFast_extDict(
				ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
				void const* src, size_t srcSize);


				#if defined (__cplusplus)
				}
				#endif

				#endif /* ZSTD_DOUBLE_FAST_H */