gcc/libcilkrts/runtime/cilk_malloc.h

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3.3 KiB
C++

/* cilk_malloc.h -*-C++-*-
*
*************************************************************************
*
* @copyright
* Copyright (C) 2009-2013, Intel Corporation
* All rights reserved.
*
* @copyright
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* @copyright
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
**************************************************************************/
/**
* @file cilk_malloc.h
*
* @brief Provides replacement memory allocation functions to allocate
* (and free) memory on cache line boundaries, if supported by the OS.
*
* If aligned memory functions are not provided by the OS, the calls just
* pass through to the standard memory allocation functions.
*/
#ifndef INCLUDED_CILK_MALLOC_DOT_H
#define INCLUDED_CILK_MALLOC_DOT_H
#include <cilk/common.h>
#include <stddef.h>
#include "rts-common.h"
__CILKRTS_BEGIN_EXTERN_C
/**
* malloc replacement function to allocate memory aligned on a cache line
* boundary if aligned memory allocations are supported by the OS.
*
* @param size Number of bytes to allocate.
*
* @return pointer to memory block allocated, or NULL if unsuccessful.
*/
COMMON_PORTABLE void *__cilkrts_malloc(size_t size);
/**
* realloc replacement function to allocate memory aligned on a cache line
* boundary if aligned memory allocations are supported by the OS.
*
* @param ptr Block to be reallocated.
* @param size Number of bytes to allocate.
*
* @return pointer to memory block allocated, or NULL if unsuccessful.
*/
COMMON_PORTABLE void *__cilkrts_realloc(void *ptr, size_t size);
/**
* free replacement function to deallocate memory aligned on a cache line
* boundary if aligned memory allocations are supported by the OS.
*
* @param ptr Block to be freed.
*/
COMMON_PORTABLE void __cilkrts_free(void *ptr);
__CILKRTS_END_EXTERN_C
#endif // ! defined(INCLUDED_CILK_MALLOC_DOT_H)