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/*

 * Copyright (c) 2007, Kohsuke Ohtani

 * 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.

 * 3. Neither the name of the author nor the names of any co-contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <sys/prex.h>

#include <sys/param.h>

/* #define DEBUG_MALLOC        1 */

#define MALLOC_MAGIC        (int)0xBAADF00D        /* "bad food" from LocalAlloc :) */

#ifdef _REENTRANT

#define MALLOC_LOCK()        mutex_lock(&malloc_lock);

#define MALLOC_UNLOCK()        mutex_unlock(&malloc_lock);

#else

#define MALLOC_LOCK()        do {} while (0)

#define MALLOC_UNLOCK()        do {} while (0)

#endif

#define ALIGN_SIZE      16

#define ALIGN_MASK      (ALIGN_SIZE - 1)

#define ROUNDUP(size)   (((u_long)(size) + ALIGN_MASK) & ~ALIGN_MASK)

struct header {

        struct header *next;

        size_t size;

        size_t vm_size;

#ifdef DEBUG_MALLOC

        int magic;

#endif

};