libcilkrts/runtime/cilk_malloc.c

/* cilk_malloc.c                  -*-C-*-
 *
 *************************************************************************
 *
 *  Copyright (C) 2009-2016, Intel Corporation
 *  All rights reserved.
 *  
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 *      from this software without specific prior written permission.
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 *  *********************************************************************
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 *  PLEASE NOTE: This file is a downstream copy of a file mainitained in
 *  a repository at cilkplus.org. Changes made to this file that are not
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 *  We welcome your contributions to this open source project. Thank you
 *  for your assistance in helping us improve Cilk Plus.
 **************************************************************************/

#include "cilk_malloc.h"

#include <stdlib.h>
#if defined _WIN32 || defined _WIN64 || defined __GLIBC__ || defined __linux__
#include <malloc.h>
#define HAS_MEMALIGN 1
#endif
#ifdef __VXWORKS__
#define HAS_MEMALIGN 1
#include <memLib.h>
#endif

#define PREFERRED_ALIGNMENT 64  /* try to keep runtime system data
                                   structures within one cache line */

void *__cilkrts_malloc(size_t size)
{
    /* TODO: check for out of memory */
#ifdef _WIN32
    return _aligned_malloc(size, PREFERRED_ALIGNMENT);
#elif defined HAS_MEMALIGN
    return memalign(PREFERRED_ALIGNMENT, size);
#else
    return malloc(size);
#endif
}

void *__cilkrts_realloc(void *ptr, size_t size)
{
#ifdef _WIN32
    return _aligned_realloc(ptr, size, PREFERRED_ALIGNMENT);
#else
    return realloc(ptr, size);
#endif
}

void __cilkrts_free(void *ptr)
{
#ifdef _WIN32
    _aligned_free(ptr);
#else
    free(ptr);
#endif
}

/* End cilk_malloc.c */