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/* crc32c -- calculate and POSIX.2 checksum
Copyright (C) 92, 1995-1999 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef CRC32C_H
#define CRC32C_H
#include "../arch/arch.h"
extern uint32_t crc32c_sw(unsigned char const *, unsigned long);
extern int crc32c_intel_available;
#ifdef ARCH_HAVE_SSE4_2
extern uint32_t crc32c_intel(unsigned char const *, unsigned long);
extern void crc32c_intel_probe(void);
#else
#define crc32c_intel crc32c_sw
static inline void crc32c_intel_probe(void)
{
}
#endif
static inline uint32_t fio_crc32c(unsigned char const *buf, unsigned long len)
{
if (crc32c_intel_available)
return crc32c_intel(buf, len);
return crc32c_sw(buf, len);
}
#endif
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