PerformanceTests/MallocBench/MallocBench/mbmalloc.cpp

/*
 * Copyright (C) 2014 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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. 
 */

#include <limits>
#include <stdio.h>
#include <stdlib.h>

#ifdef __APPLE__
#import <malloc/malloc.h>
#else
#include <malloc.h>
#endif

extern "C" {

void* mbmalloc(size_t size)
{
    return malloc(size);
}

void* mbmemalign(size_t alignment, size_t size)
{
    void* result;
    if (posix_memalign(&result, alignment, size))
        return nullptr;
    return result;
}

void mbfree(void* p, size_t)
{
    return free(p);
}

void* mbrealloc(void* p, size_t, size_t newSize)
{
    return realloc(p, newSize);
}

void mbscavenge()
{
#ifdef __APPLE__
    malloc_zone_pressure_relief(nullptr, 0);
#else
    malloc_trim(0);
#endif
}

} // extern "C"