Statistics
| Branch: | Revision:

root / prex-0.9.0 / usr / lib / prex / malloc / malloc.h @ 03e9c04a

History | View | Annotate | Download (2.12 KB)

1
/*
2
 * Copyright (c) 2007, Kohsuke Ohtani
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 * 1. Redistributions of source code must retain the above copyright
9
 *    notice, this list of conditions and the following disclaimer.
10
 * 2. Redistributions in binary form must reproduce the above copyright
11
 *    notice, this list of conditions and the following disclaimer in the
12
 *    documentation and/or other materials provided with the distribution.
13
 * 3. Neither the name of the author nor the names of any co-contributors
14
 *    may be used to endorse or promote products derived from this software
15
 *    without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27
 * SUCH DAMAGE.
28
 */
29

    
30
#include <sys/prex.h>
31
#include <sys/param.h>
32

    
33
/* #define DEBUG_MALLOC        1 */
34

    
35
#define MALLOC_MAGIC        (int)0xBAADF00D        /* "bad food" from LocalAlloc :) */
36

    
37
#ifdef _REENTRANT
38
#define MALLOC_LOCK()        mutex_lock(&malloc_lock);
39
#define MALLOC_UNLOCK()        mutex_unlock(&malloc_lock);
40
#else
41
#define MALLOC_LOCK()        do {} while (0)
42
#define MALLOC_UNLOCK()        do {} while (0)
43
#endif
44

    
45
#define ALIGN_SIZE      16
46
#define ALIGN_MASK      (ALIGN_SIZE - 1)
47
#define ROUNDUP(size)   (((u_long)(size) + ALIGN_MASK) & ~ALIGN_MASK)
48

    
49
struct header {
50
        struct header *next;
51
        size_t size;
52
        size_t vm_size;
53
#ifdef DEBUG_MALLOC
54
        int magic;
55
#endif
56
};