mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-29 22:02:02 +00:00
4782c725c1
The zstd codebase is imported from the upstream zstd repo, and is over-written on every update. Upstream keeps the kernel specific code separate from the main library. So the module definition is moved into the zstd_common_module.c file. This matches the pattern followed by the zstd-compress and zstd-decompress files. I've done build and boot testing on x86-64, i386, and aarch64. I've verified that zstd built both as modules and built-in build and boot. Signed-off-by: Nick Terrell <terrelln@fb.com>
83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/*
|
|
* Copyright (c) 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.
|
|
*/
|
|
|
|
|
|
|
|
/*-*************************************
|
|
* Dependencies
|
|
***************************************/
|
|
#define ZSTD_DEPS_NEED_MALLOC
|
|
#include "zstd_deps.h" /* ZSTD_malloc, ZSTD_calloc, ZSTD_free, ZSTD_memset */
|
|
#include "error_private.h"
|
|
#include "zstd_internal.h"
|
|
|
|
|
|
/*-****************************************
|
|
* Version
|
|
******************************************/
|
|
unsigned ZSTD_versionNumber(void) { return ZSTD_VERSION_NUMBER; }
|
|
|
|
const char* ZSTD_versionString(void) { return ZSTD_VERSION_STRING; }
|
|
|
|
|
|
/*-****************************************
|
|
* ZSTD Error Management
|
|
******************************************/
|
|
#undef ZSTD_isError /* defined within zstd_internal.h */
|
|
/*! ZSTD_isError() :
|
|
* tells if a return value is an error code
|
|
* symbol is required for external callers */
|
|
unsigned ZSTD_isError(size_t code) { return ERR_isError(code); }
|
|
|
|
/*! ZSTD_getErrorName() :
|
|
* provides error code string from function result (useful for debugging) */
|
|
const char* ZSTD_getErrorName(size_t code) { return ERR_getErrorName(code); }
|
|
|
|
/*! ZSTD_getError() :
|
|
* convert a `size_t` function result into a proper ZSTD_errorCode enum */
|
|
ZSTD_ErrorCode ZSTD_getErrorCode(size_t code) { return ERR_getErrorCode(code); }
|
|
|
|
/*! ZSTD_getErrorString() :
|
|
* provides error code string from enum */
|
|
const char* ZSTD_getErrorString(ZSTD_ErrorCode code) { return ERR_getErrorString(code); }
|
|
|
|
|
|
|
|
/*=**************************************************************
|
|
* Custom allocator
|
|
****************************************************************/
|
|
void* ZSTD_customMalloc(size_t size, ZSTD_customMem customMem)
|
|
{
|
|
if (customMem.customAlloc)
|
|
return customMem.customAlloc(customMem.opaque, size);
|
|
return ZSTD_malloc(size);
|
|
}
|
|
|
|
void* ZSTD_customCalloc(size_t size, ZSTD_customMem customMem)
|
|
{
|
|
if (customMem.customAlloc) {
|
|
/* calloc implemented as malloc+memset;
|
|
* not as efficient as calloc, but next best guess for custom malloc */
|
|
void* const ptr = customMem.customAlloc(customMem.opaque, size);
|
|
ZSTD_memset(ptr, 0, size);
|
|
return ptr;
|
|
}
|
|
return ZSTD_calloc(1, size);
|
|
}
|
|
|
|
void ZSTD_customFree(void* ptr, ZSTD_customMem customMem)
|
|
{
|
|
if (ptr!=NULL) {
|
|
if (customMem.customFree)
|
|
customMem.customFree(customMem.opaque, ptr);
|
|
else
|
|
ZSTD_free(ptr);
|
|
}
|
|
}
|