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64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/**********************************************************************
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Copyright(c) 2011-2018 Intel Corporation All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name of Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**********************************************************************/
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#include <stddef.h>
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/**
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* @file mem_routines.h
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* @brief Interface to storage mem operations
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*
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* Defines the interface for vector versions of common memory functions.
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*/
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#ifndef _MEM_ROUTINES_H_
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#define _MEM_ROUTINES_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Detect if a memory region is all zero
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*
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* Zero detect function with optimizations for large blocks > 128 bytes
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*
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* @param mem Pointer to memory region to test
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* @param len Length of region in bytes
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* @returns 0 - region is all zeros
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* other - region has non zero bytes
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*/
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int
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isal_zero_detect(void *mem, size_t len);
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#ifdef __cplusplus
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}
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#endif
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#endif // _MEM_ROUTINES_H_
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