9a11f70dc3
this version has same speed as branch `opt` which is itself 5-10% slower than branch `dev` (no identified reason) It does not compress exactly the same as `opt` or `dev`, maybe because it doesn't stop search after repcodes, leading to sometimes better compression, sometimes worse (by a small margin). warning : _extDict path does not work for the time being This means that benchmark module works, but file module will fail with large files (and high compression level). Objective is to fuse _extDict path into current one, in order to have a single parser to maintain.
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/*
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* Copyright (c) 2016-present, Yann Collet, 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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/*-*************************************
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* Dependencies
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***************************************/
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#include <stdlib.h> /* malloc, calloc, free */
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#include <string.h> /* memset */
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#include "error_private.h"
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#include "zstd_internal.h"
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/*-****************************************
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* Version
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******************************************/
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unsigned ZSTD_versionNumber(void) { return ZSTD_VERSION_NUMBER; }
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const char* ZSTD_versionString(void) { return ZSTD_VERSION_STRING; }
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/*-****************************************
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* ZSTD Error Management
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******************************************/
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/*! ZSTD_isError() :
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* tells if a return value is an error code */
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unsigned ZSTD_isError(size_t code) { return ERR_isError(code); }
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/*! ZSTD_getErrorName() :
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* provides error code string from function result (useful for debugging) */
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const char* ZSTD_getErrorName(size_t code) { return ERR_getErrorName(code); }
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/*! ZSTD_getError() :
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* convert a `size_t` function result into a proper ZSTD_errorCode enum */
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ZSTD_ErrorCode ZSTD_getErrorCode(size_t code) { return ERR_getErrorCode(code); }
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/*! ZSTD_getErrorString() :
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* provides error code string from enum */
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const char* ZSTD_getErrorString(ZSTD_ErrorCode code) { return ERR_getErrorString(code); }
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/*! g_debuglog_enable :
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* turn on/off debug traces (global switch) */
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#if defined(ZSTD_DEBUG) && (ZSTD_DEBUG >= 2)
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int g_debuglog_enable = 1;
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#endif
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/*=**************************************************************
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* Custom allocator
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****************************************************************/
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void* ZSTD_malloc(size_t size, ZSTD_customMem customMem)
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{
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if (customMem.customAlloc)
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return customMem.customAlloc(customMem.opaque, size);
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return malloc(size);
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}
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void* ZSTD_calloc(size_t size, ZSTD_customMem customMem)
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{
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if (customMem.customAlloc) {
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/* calloc implemented as malloc+memset;
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* not as efficient as calloc, but next best guess for custom malloc */
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void* const ptr = customMem.customAlloc(customMem.opaque, size);
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memset(ptr, 0, size);
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return ptr;
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}
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return calloc(1, size);
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}
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void ZSTD_free(void* ptr, ZSTD_customMem customMem)
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{
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if (ptr!=NULL) {
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if (customMem.customFree)
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customMem.customFree(customMem.opaque, ptr);
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else
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free(ptr);
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}
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}
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